CN111837796B - Method for improving drought resistance of annual oil peony - Google Patents
Method for improving drought resistance of annual oil peony Download PDFInfo
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- CN111837796B CN111837796B CN202010948547.XA CN202010948547A CN111837796B CN 111837796 B CN111837796 B CN 111837796B CN 202010948547 A CN202010948547 A CN 202010948547A CN 111837796 B CN111837796 B CN 111837796B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
- A01G17/005—Cultivation methods
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
- A01G7/06—Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/14—Greenhouses
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Abstract
The invention discloses a method for improving drought resistance of annual oil peony, which adopts 12-oxygen-plant dienoic acid to induce the oil peony to generate drought resistance; the method comprises the following steps: 1) selecting annual oil peony seedlings with consistent growth vigor and no diseases and insect pests for cultivation in 10 months; 2) culturing in greenhouse at room temperature for 5 months next year, and performing normal water management; 3) spraying 12-oxygen-plant dienoic acid on the whole bead of the oil peony till the upper and lower surfaces of the leaves drip water, spraying for 2 times every 3 days, and obtaining the oil peony with drought resistance. In the growth process of annual oil peony seedlings, exogenous Cis-OPDA induction treatment is adopted, so that the chlorophyll content, net photosynthetic rate, stomatal conductance and transpiration rate in leaves are improved, and the plant photosynthesis is promoted, so that the damage of drought stress to the oil peony seedlings is weakened, and the defense capacity of oil peony to drought stress is improved.
Description
Technical Field
The invention relates to the technical field of peony planting, in particular to a method for improving drought resistance of annual oil peony.
Background
The peony for oil is a unique new woody oil crop in China, the seed oil is rich in unsaturated fatty acids such as linolenic acid, linoleic acid and the like, and simultaneously contains medicinal effective components of the peony, so that the peony for oil has the effects of reducing blood sugar, blood fat, cholesterol and the like, and has important oil use and medicinal values. Oil peonies in their habitat often encounter drought stress caused by insufficient water resources. The method is suitable for ecological conditions of global climate drought change and water resource shortage, develops novel oil crop peony which does not compete with grain and cotton in land under the basic national condition that the cultivated land area is limited, realizes the improvement of drought-resistant cultivation technology, and has important significance for realizing agricultural sustainable development.
Various methods are disclosed in the prior art for improving the drought resistance of oil peonies, for example, CN108849476A discloses a breeding method for improving the drought resistance of oil peonies, which combines the traditional hybridization mode with a chemical reagent treatment method, reduces the generation of false positive drought-resistant seeds, reduces the total sample amount of the subsequent hybridization steps, reduces the workload, and improves the breeding efficiency; patent CN106866241A discloses a breeding method for improving drought resistance of oil peony, which combines aging treatment and drought resistance agent to effectively improve germination rate of seeds, improve drought resistance of seeds and improve acre yield of oil peony. Although the prior art achieves the aim of improving the drought resistance of the oil peony, the prior art has the defects of high cost, complex process and long time consumption.
12-oxo-plant dienoic acid (Cis (+) -12-oxophyodienoic acid, Cis-OPDA for short) is an important intermediate product in a jasmonic acid synthesis pathway, and plays an important role in mediating the biological stress of plants on pathogenic infection, insect bite and the like and the resistance reaction of various abiotic stresses of low temperature, drought, ozone, ultraviolet and the like (Wudebwei, 2018). Cis-OPDA induces synthesis of various antibiotic enzymes such as Plant Polyphenol Oxidase (PPO), Protease Inhibitor (PI), Lipoxygenase (LOX), Peroxidase (POD) and Phenylalanine Ammonia Lyase (PAL), and improves enzyme activity (Koramutla MK, 2014).
Therefore, the Cis-OPDA is applied to improving the drought resistance of the oil peony, and has important significance for enlarging the growing area of the oil peony and improving the yield of the oil peony under the adverse conditions.
Disclosure of Invention
In view of the above, the invention aims to provide a method for improving the drought resistance of annual oil peonies, aiming at the problem that the oil peonies are susceptible to drought stress during the growth process and influence the normal growth of the oil peonies to cause yield reduction.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for improving drought resistance of annual oil peony is characterized in that 12-oxygen-plant dienoic acid is adopted to induce the oil peony to generate drought resistance; the method comprises the following steps:
1) selecting annual oil peony seedlings with consistent growth vigor and no diseases and insect pests for cultivation in 10 months;
2) culturing in greenhouse at room temperature for 5 months next year, and performing normal water management;
3) spraying 12-oxygen-plant dienoic acid on the whole bead of the oil peony till the upper and lower surfaces of the leaves drip water, spraying for 2 times every 3 days, and obtaining the oil peony with drought resistance.
Preferably, the concentration of the 12-oxo-plant dienoic acid sprayed in the step 3) is 50-100 μ g/mL.
Preferably, the culture medium adopted in the step 1) is humus.
According to the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1. the invention provides a method for improving the photosynthetic and physiological properties of annual oil peony seedlings under drought stress, and effectively solves the problem of poor growth of oil peonies under drought stress.
2. The method is simple to operate, namely, in the growth process of annual oil peony 'paeonia ostii' seedlings, Cis-OPDA with proper concentration is sprayed, so that the chlorophyll content (chlorophyll a, chlorophyll b and carotenoid) in leaves can be increased, the net photosynthetic rate (Pn), stomatal conductance (Gs) and transpiration rate (Tr) are increased, the damage of drought to a light system is relieved, the photosynthesis of plants is promoted, the damage of drought stress to the oil peony seedlings is weakened, and the defense capacity of the oil peony to the drought stress is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and other drawings can be obtained by those skilled in the art according to the provided drawings.
FIG. 1 is a graph showing the effect of Cis-OPDA of different concentrations on the net photosynthetic rate of annual oil peony 'Paeonia ostii' seedlings under drought stress in the present invention;
FIG. 2 is a graph showing the influence of Cis-OPDA with different concentrations on the transpiration rate of annual oil peony 'paeonia ostii' seedlings under drought stress in the present invention;
FIG. 3 is a graph showing the influence of Cis-OPDA with different concentrations on stomatal conductance of annual oil peony 'paeonia ostii' seedlings under drought stress in the present invention;
FIG. 4 shows intercellular CO of annual oil peony 'Paeonia ostii' seedlings under drought stress of Cis-OPDA with different concentrations in the present invention2The effect of concentration;
FIG. 5 shows the effect of Cis-OPDA of different concentrations on chlorophyll a content of annual oil peony 'Paeonia ostii' seedlings under drought stress in the present invention;
FIG. 6 shows the effect of Cis-OPDA of different concentrations on chlorophyll b content of annual oil peony 'Paeonia ostii' seedlings under drought stress in the present invention;
FIG. 7 shows the effect of different concentrations of Cis-OPDA on carotenoid content in annual oil peony 'Paeonia ostii' seedlings under drought stress in the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The oil peony is a peony variety with high seed yield, high oil content and high nutrient content. Paeonia genus, Paeonia genus and Paeonia genus plant, 9 species of wild Paeonia species all over the world, and all distributed in China. At present, the natural growth state of wild peony can still be seen in Henan, Shaanxi, Hubei, Gansu, Sichuan, Yunnan, Tibet and the like; according to incomplete statistics, about 2000 species of cultivated peony are shared all over the world at present, more than 100 species have certain fructification capacity, but the peony used for oil is mainly two types of Paeonia ostii and Paeonia lactiflora. The embodiment of the invention mainly takes Paeonia ostii ' peony as an example, and the ' purpura ' peony variety can achieve the same technical effect.
Example 1
The method comprises the following steps: in 2017, in 10 months, 20 annual oil peony 'paeonia ostii' seedlings with consistent growth vigor and no diseases and insect pests are selected and planted in plastic flowerpots with the diameter of 10cm and holes at the bottom, 1 tree is planted in each pot, and the pot culture substrate is test farm garden soil of Henan university of science and technology (the selection of the substrate does not influence the test, and the normal growth of the peony is guaranteed).
Step two: culturing in a greenhouse till 5 months in the next year, and performing normal water management.
Step three: annual oil peony 'paeonia ostii' seedlings are sprayed on the whole plant by 50 mu g/mLCis-OPDA, the upper and lower surfaces of leaves are preferably dripped with water, the spraying is carried out once every 3 days for 2 times, and each treatment is repeated for 5 times.
Step four: and after the Cis-OPDA spraying induction treatment is finished for 3d, carrying out drought stress treatment. During the period, the phenotypic change of the oil peony 'paeonia ostii' plants under drought stress is observed every day, and data is recorded.
Step five: after the drought stress treatment is finished, the leaves of the peony 'paeonia ostii' for oil are collected, are quickly frozen by liquid nitrogen and then are stored at the temperature of minus 80 ℃ for analyzing the change of physiological and biochemical characteristics of the leaves and screening the Cis-OPDA concentration capable of improving the drought resistance of the peony 'paeonia ostii' for oil.
Example 2
The method comprises the following steps: in 10 months in 2017, 20 annual oil peony 'paeonia ostii' seedlings with consistent growth vigor and no diseases and insect pests are selected and planted in plastic flowerpots with the diameter of 10cm and holes at the bottom, 1 tree is planted in each pot, and the pot culture substrate is test farm garden soil of Henan university of science and technology.
Step two: culturing in a greenhouse till 5 months in the next year, and performing normal water management.
Step three: annual oil peony 'paeonia ostii' seedlings are sprayed with 100 mu g/mL Cis-OPDA on the whole plant, the water is preferably dripped on the upper and lower surfaces of leaves, the spraying is carried out once every 3 days for 2 times, and each treatment is repeated for 5 times.
Step four: and after the Cis-OPDA spraying induction treatment is finished for 3d, carrying out drought stress treatment. During the period, the phenotypic change of the oil peony 'paeonia ostii' plants under drought stress is observed every day, and data is recorded.
Step five: after the drought stress treatment is finished, the leaves of the peony 'paeonia ostii' for oil are collected, are quickly frozen by liquid nitrogen and then are stored at the temperature of minus 80 ℃ for analyzing the change of physiological and biochemical characteristics of the leaves and screening the Cis-OPDA concentration capable of improving the drought resistance of the peony 'paeonia ostii' for oil.
Example 3
The method comprises the following steps: in 10 months in 2017, 20 annual oil peony 'paeonia ostii' seedlings with consistent growth vigor and no diseases and insect pests are selected and planted in plastic flowerpots with the diameter of 10cm and holes at the bottom, 1 tree is planted in each pot, and the pot culture substrate is test farm garden soil of Henan university of science and technology.
Step two: culturing in a greenhouse till 5 months in the next year, and performing normal water management.
Step three: the annual oil peony 'paeonia ostii' seedlings are sprayed with 200 mu g/mLCis-OPDA on the whole plant, the upper and lower surfaces of the leaves are preferably dripped with water, the spraying is carried out once every 3 days for 2 times, and each treatment is repeated for 5 times.
Step four: and after the Cis-OPDA spraying induction treatment is finished for 3d, carrying out drought stress treatment. During the period, the phenotypic change of the oil peony 'paeonia ostii' plants under drought stress is observed every day, and data is recorded.
Step five: after the drought stress treatment is finished, the leaves of the peony 'paeonia ostii' for oil are collected, are quickly frozen by liquid nitrogen and then are stored at the temperature of minus 80 ℃ for analyzing the change of physiological and biochemical characteristics of the leaves and screening the Cis-OPDA concentration capable of improving the drought resistance of the peony 'paeonia ostii' for oil.
And (4) related tests:
the test sets up absolute control, relative control and treatment groups. The absolute contrast (Cis-OPDA concentration is 0) is annual oil peony 'paeonia ostii' seedlings without any Cis-OPDA concentration sprayed in a natural state, the contrast is paeonia ostii 'plants sprayed with Cis-OPDA with different concentrations in a natural state, and the test group is paeonia ostii' plants sprayed with Cis-OPDA with different concentrations in a drought stress treatment. Wherein, the plants adopted by the relative control and test groups are the peony 'Paeonia ostii' cultivated in the embodiment 1-3.
The experiment adopts LI-6400 portable photosynthetic apparatus (LI-COR, Lincoln, Nebraska, USA) to determine photosynthetic property of annual oil peony 'Paeonia ostii' seedling under different treatments, and the determination index mainly includes net photosynthetic rate (P. in the same way, and the amount of the photosynthetic rate is higher than that of the net photosynthetic raten) And gas pore conductivity (G)s) Intercellular CO2Concentration (Intercellular CO)2 concentration，Ci) A Transpiration rate (T)r) (ii) a The contents of chlorophyll a (chlorophenyll a), chlorophyll b (chlorophenyllb) and Carotenoid (Carotenoid) in the leaves are determined by an ethanol extraction method. All test criteria were repeated 5 times. The analysis was performed using Excel 2013 and SPSS21.0 software, plotted using origin8.0 software.
As shown in figure 1, the net photosynthetic rate of annual oil peony Paeonia ostii seedlings is in a descending trend under drought stress, and the photosynthetic rate of Paeonia ostii can be improved by spraying Cis-OPDA with different concentrations, so that the inhibition of drought stress on the growth of Paeonia ostii is relieved. With increasing exogenous Cis-OPDA concentration, the net photosynthetic rate of Paeonia ostii' peony decreased, but the difference was not significant and was still higher than the net photosynthetic rate of the control. Experiments show that 50 mu g/ml Cis-OPDA induction treatment has the best effect of relieving the reduction of the photosynthetic rate caused by drought stress.
As shown in FIG. 2, the annual oil peony 'paeonia ostii' seedlings under normal water supply treatment show an ascending trend of transpiration rate with increase of Cis-OPDA concentration, and the transpiration rate is the largest when the Cis-OPDA concentration is 100 mu g/ml, and the difference is not obvious compared with 50 mu g/ml. The transpiration rate of annual oil peony 'paeonia ostii' seedlings under drought stress is reduced compared with that of normal water supply, but the transpiration rate is not changed greatly. The transpiration rate after externally applied Cis-OPDA shows a trend of rising-falling, the transpiration rate reaches a maximum value when the Cis-OPDA concentration is 100 mu g/ml, but the difference of the transpiration rate under the induction of each Cis-OPDA concentration is not obvious.
As shown in fig. 3, the trend of the porosity conductance was similar to the transpiration rate. Under the normal water supply treatment of annual oil peony 'paeonia ostii' seedlings, the porosity conductivity of the annual oil peony 'paeonia ostii' seedlings tends to increase along with the increase of Cis-OPDA concentration, the porosity conductivity is the largest when the Cis-OPDA concentration is 100 mu g/ml, and the difference is not obvious compared with 50 mu g/ml Cis-OPDA induction treatment. The stomatal conductance of annual oil peony 'paeonia ostii' seedlings under drought stress is in a descending trend compared with that of normal water supply, but the difference is not obvious. The porosity conductivity after externally applying Cis-OPDA shows a trend of rising-falling, and the porosity conductivity is the largest when the Cis-OPDA concentration is 100 mu g/ml, but the difference of transpiration rates at each concentration is not obvious.
As shown in FIG. 4, intercellular CO of annual oil peony 'Paeonia ostii' seedlings under normal water supply treatment2The concentration of Cis-OPDA tends to rise first and then fall with the increase of the concentration of Cis-OPDA, and the intercellular CO of the Cis-OPDA is 100 mu g/ml2The concentration was maximal, but not significantly different compared to 50. mu.g/ml. Intercellular CO under drought stress treatment2The concentration is increased compared with the control, and the trend is opposite to the change trend of the conductivity of the air holes. Intercellular CO after external application of Cis-OPDA2The concentration of Cis-OPDA tends to decrease and then increase with the increase of concentration, and when the concentration of Cis-OPDA is 100. mu.g/ml, intercellular CO is present2The concentration was the largest, but the difference at each concentration was not significant.
As shown in FIGS. 5, 6 and 7, the chlorophyll a content of leaves of annual oil peony 'paeonia ostii' seedlings in normal water supply treatment tends to decrease with the increase of Cis-OPDA concentration. The chlorophyll a content of the leaves of the Paeonia ostii under the drought stress treatment shows a tendency of rising first and then falling along with the increase of the Cis-OPDA concentration, the chlorophyll a content of the leaves of Paeonia ostii under the treatment of 100 mu g/ml Cis-OPDA is the highest, and the difference is not obvious compared with the treatment of 50 mu g/ml Cis-OPDA. The change trend of the carotenoid content is the same as that of the chlorophyll a content. The results show that 50 mu g/ml Cis-OPDA and 100 mu g/ml Cis-OPDA treatment can relieve the degradation of chlorophyll a and carotenoid of Paeonia ostii leaves under drought stress, the content of chlorophyll b in Paeonia ostii leaves treated by Cis-OPDA at various concentrations under drought stress has no obvious change, and the relieving effect is not obvious.
In conclusion, the exogenous Cis-OPDA can relieve the damage of drought stress to annual oil peony 'paeonia ostii' seedlings, the drought stress relieving effect of 100 mu g/ml Cis-OPDA is good, but Cis-OPDA with the concentration of 50-100 mu g/ml can be properly selected in practical application.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (1)
1. A method for improving drought resistance of annual oil peony is characterized in that 12-oxygen-plant dienoic acid is adopted to induce the oil peony to generate drought resistance; the method comprises the following steps:
1) selecting annual oil peony seedlings with consistent growth vigor and no diseases and insect pests for cultivation in 10 months;
2) culturing in greenhouse at room temperature for 5 months next year, and performing normal water management;
3) spraying 12-oxo-plant dienoic acid on the whole tree of the peony for oil till the upper and lower surfaces of the leaves drip water, spraying for 2 times every 3 days to obtain the peony for oil with drought resistance;
the concentration of the 12-oxo-plant dienoic acid sprayed in the step 3) is 50-100 mu g/mL.
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| CN2019112898348 | 2019-12-17 |
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| CN108849476A (en) * | 2018-07-13 | 2018-11-23 | 河南农业职业学院 | Improve the breeding method that oil uses tree peony drought resistance |
| CN111820238A (en) * | 2020-06-09 | 2020-10-27 | 扬州大学 | Drought-resistant agent for relieving drought stress of paeonia ostii and application thereof |
| CN114885633B (en) * | 2022-06-20 | 2023-03-24 | 河南科技大学 | Method for promoting germination of peanut seeds under low-temperature stress |
Citations (3)
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| WO2005059125A1 (en) * | 2003-12-16 | 2005-06-30 | Commonwealth Scientific And Industrial Research Organisation | Variants of phosphotriesterases with enhanced and/or altered substrate specificity |
| CN104768378A (en) * | 2012-10-01 | 2015-07-08 | 巴斯夫欧洲公司 | Use of N-thio-anthranilamide compounds on cultivated plants |
| CN108124878A (en) * | 2017-12-26 | 2018-06-08 | 中山大学 | Application of the class pyrimidine compound in the synthesis of rice cylinder metabolism-ure and hormonal readiness is promoted |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2005059125A1 (en) * | 2003-12-16 | 2005-06-30 | Commonwealth Scientific And Industrial Research Organisation | Variants of phosphotriesterases with enhanced and/or altered substrate specificity |
| CN104768378A (en) * | 2012-10-01 | 2015-07-08 | 巴斯夫欧洲公司 | Use of N-thio-anthranilamide compounds on cultivated plants |
| CN108124878A (en) * | 2017-12-26 | 2018-06-08 | 中山大学 | Application of the class pyrimidine compound in the synthesis of rice cylinder metabolism-ure and hormonal readiness is promoted |
Non-Patent Citations (1)
| Title |
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| Functional Convergence of Oxylipin and Abscisic Acid Pathways Controls Stomatal Closure in Response to Drought;Tatyana Savchenko等;《Plant Physiology》;20141231(第3期);第1151-1160页 * |
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