EP3271312A1 - Utilisation de proanthocyanidines pour limiter la denitrification - Google Patents
Utilisation de proanthocyanidines pour limiter la denitrificationInfo
- Publication number
- EP3271312A1 EP3271312A1 EP16715023.4A EP16715023A EP3271312A1 EP 3271312 A1 EP3271312 A1 EP 3271312A1 EP 16715023 A EP16715023 A EP 16715023A EP 3271312 A1 EP3271312 A1 EP 3271312A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- proanthocyanidin
- proanthocyanidins
- denitrification
- use according
- soil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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- LRBQNJMCXXYXIU-NRMVVENXSA-N tannic acid Chemical compound OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-NRMVVENXSA-N 0.000 description 1
- 229940033123 tannic acid Drugs 0.000 description 1
- 235000015523 tannic acid Nutrition 0.000 description 1
- 229920002258 tannic acid Polymers 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- HSTZMXCBWJGKHG-CUYWLFDKSA-N trans-piceid Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC(O)=CC(\C=C\C=2C=CC(O)=CC=2)=C1 HSTZMXCBWJGKHG-CUYWLFDKSA-N 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 150000003648 triterpenes Chemical class 0.000 description 1
- 238000009369 viticulture Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F11/00—Other organic fertilisers
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/90—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting the nitrification of ammonium compounds or urea in the soil
Definitions
- the present invention relates to the environmental field, and more specifically to a means of limiting the denitrificadon intervening in the environment, especially in the soil, and more particularly the crop,
- Nitrogen is a limiting factor for plant growth (LeBauer & ⁇ reseder, 2008). The development of plants therefore strongly depends on the processes of the nitrogen cycle which condition the transformation of nitrogen in all its forms including the availability of NH and G3, which are the assimilable forms of nitrogen by plants.
- denitrification mostly carried out by so-called denitrifying bacteria, which consists of the reduction of NO3 (nitrate) to H 2 Q and 2, is considered as the main biological pathway of loss of nitrogen.
- denitrifying bacteria which consists of the reduction of NO3 (nitrate) to H 2 Q and 2
- these losses represent 59% of the total losses of the system (Genema et al., 2009).
- the gaseous forms of nitrogen, N3O and N3 ⁇ 4 generated by denitrification are released in the atmosphere and thus made inaccessible to plants.
- DMPP dimethylpyrazophosphate
- Root and rhizome extracts from Failopla spp. An invasive plant complex, have been described as reducing the denitrification process of soybeans (Bardon et al, 2014).
- Bardon et al 2014 identified in this publication a number of metabolites present in the tested extract of Faiiopia spp. including (+) ofcechin, ⁇ + ⁇ - epiatechin., piceatanoi glucoside, resveratroloside, iemodine, physion, resveratrol and pictreide and show a correlation between catechin concentration in the extracts and ⁇ Inhibition of denitrifioation.
- proanthocyanidins were responsible for the inhibition of the denervation observed with extracts of Faliopsa x bohemica.
- these compounds do not affect the activity of the enzymes of respiration, an important function for the growth of soil microorganisms.
- the present invention relates to the use of at least one proanthocyanidin to imitate denitrification caused by microorganisms by contacting said at least one proanthocyanidin with said microorganisms.
- microorganisms that cause the denitrifying activity that is reduced in the context of ⁇ nvention are most often present in a medium.
- the microorganisms When used according to (Invention, the microorganisms will then be present in the medium with the said at least one proanthocyanidin, in which case the proanthocyanidin will be placed in contact with the medium and, consequently, with the microorganisms to be killed.
- the medium (with which proanthocyanidin is brought into contact, called the treated medium) may be a solid medium, such as soil, and in particular crop soil, compost, manure, soil, compost, sewage sludge, sediment or a liquid medium, such as an aqueous medium such as river water, water wastewater, wastewater, without this list being exhaustive.
- the contacting of at least one proanthocyanidlne with the medium of interest. Can be performed by any suitable technique ,, ", particularly by applying the proanthocyanidlne on said medium or by mixing the proanthocyanidin with said medium.
- Contacting time with the microorganisms to the effect of said microorganisms on ocyanidlnes prooant corresponds to the desired period for obtaining the effect limiting dénitrlficatlon.
- one or more proanhocyanidine (s) are (are) used to limit the denitrlficatlon caused by microorganisms normally having the capacity to reduce O3 (nitrate present in the treated medium) in f3 ⁇ 40 and
- microorganisms possess the genes coding for nitrate and nitrite reductases.
- microorganisms include fungi such as Cylindrocarpan tonkmense ?
- the contacting with the microorganisms is carried out so as to obtain a reduction in the denlthfication caused by the microorganisms having a denitrifying activity, or in other words so as to at least partially inhibit the denitrifying activity of the microorganisms.
- reduction or inhibition is to be considered, with respect to the emission of 20 and 3 ⁇ 4 and / or the denitrilfication (transformation of nitrate O3 or more precisely N ⁇ 1 ⁇ 4 " into N 3 and f ) which would be obtained in the absence of contacting the microorganisms concerned with said proanthocyanidin.
- the denitrlficatlon activity is obtained by measuring the emission of 1 ⁇ 2G -f H 2f d one hand in the presence and, on the other hand, the absence of proanthocyanldine, which allows to obtain a percent inhibition of the denitrification corresponding to (transmission 2 0 + H 2 in the presence of proanthocyanidin) / (emission 2O + Nfe absence of proanthocyanldine) * 100 .
- the inhibition of denitrification by proanthocyanidines can in particular reach a maximum level of 100%, and in the context of the invention will be obtained the% dinhsbitlon denitrification, generally from 20 to 100 %, preferably 50 to 100%,
- the technique described in Dambraville et al., 2006, and used in the examples, can be used to evaluate U 2 -U 2 uptake.
- the amount of proanthocyanidin (s) used will be adjusted by those skilled in the art to achieve the desired effect.
- proanthocyanidins also known as proanthocyanidic tannins, condensed tannins, or proanthocyanidols, are fiavonoids, and more specifically polymers of hydroxyflavan-3-ol.
- the hydroxyflavan-5-ol monomers constituting the proanthocyanidines have the following structure (I). ):
- R 1 , R 2 , R 3 , R 4 , R 5 and R 6 which are identical or different, are chosen from hydrogen, hydroxyl, gallate, methyl or oside groups.
- proanthocyanidins are polymers hydroxyffevan d f ⁇ 3 ⁇ Oi which two consecutive monomers are linked by a single covalent bond between two carbons, depending on the positions 4-6 or 4-8 (respective positions in both monomers), as shown in the formula corresponding to a dimer comprising a 4-8 linkage, followed by a 4-6 linkage:
- R 2 ', R y and R 6', R r, R, R 3 ", R 4", R 5 "and R 6" may be the same groups or different groups representing hydrogen, a hydroxyl group a gallate group, a methyl group or a saccharide group,
- the proanthocyanidins of type A are polymers of hydroxyflavan-3-ol of which two consecutive monomers are connected by two covalent bonds between two carbons, at position 2-7 and 4-8 (respective positions in the two monomers), illustrated in the case of a dimer by formula (III) below i
- R 1, R 2 f R 3, R 4 R s and f 6; R r , R f 4 ' , R 5' and R 6 ' which may be the same groups or different groups, representing hydrogen, a hydroxyl group, a gailate group, a methyl group or an osidic group.
- proanthocyanidins which can be used in the context of the invention consist of 2 to n monomers (hydroxyflavan ⁇ 3 ⁇ ol) connected by covalent bonds previously described, according to all the possible variations.
- one or more proanthocyanidins chosen from among the dimer, irimer and tetramer will be used.
- proanthocyanidins are polymers of (- / +) - catechin, (7 ⁇ ) epicatechin., (- / - f-) ⁇ gallocatechin and (- / ⁇ ) - epigallocatechin.
- proanthocyanidins are found subgroups of molecules, such as, for example, prodelphinidines. (prodeiphinidoi) or procyanidins (procyanidol).
- Procyanidins correspond to polymers of (- / -) ⁇ cathehine and / or ⁇ - / - * ⁇ ⁇ - epicatechin.
- Proanthocyanidins are natural products which can, in particular, be obtained and purified from extracts of Faifopia spp., And in particular Falhpia x bohemka as evidenced by the inventors, or else from Vitis vinifera seeds, Pteridium spp. VMdum spp. Schfûops / s spp ,, Vicia spp v C / 5 spp., Quercus spp , many commercial proanthocyanldines are available, especially in LAF OT (Bordeaux, France), Organic Herb Inc. (Changsha , China) Nanjing Zelang Medical Technology Co., Ltd. (Jiangsu, China),
- proanthocyanidins of type B and even more preferably procyanidins of type 8, in particular in the form of dimer, trimer or tetramer,
- said at least one proanthocyanidin used is not in the form of an extract of Fafiopia spp., Containing proanthocyanidins, and in particular Faiiopia x bohemica, and / or said at least one proanthocyanidin. is used, in the absence of cathehine and / or epicatechin,
- the proanthocyanidin (s) used may be applied to the medium containing the microorganisms whose denitrification effect is to be limited, or mixed with the latter, in the form of an aqueous solution or suspension or still in the form of a powder or granule,
- At least one proanthocyanidin may, in particular, be used to promote plant growth on a culture soil, by reducing denitrification caused by microorganisms. Having a denitrifying activity, and in particular caused by denitrifying bacteria present in said soil Proanthocyanidins being natural products, their use in crops is in total respect with the environment Proanthocyanidins can therefore be used in organic farming.
- At least one proanthoeyanidine is applied to a soi, and in particular a culture soil, for example by deposition or spraying on the ground.
- said at least one proanthoeyanidine is used to limit denitrification caused by soil bacteria, such as Pseudo onas brassacacearum and / or Sac us cernas,
- proanthocyanidin in the case of a solution of proanthocyanidin (s), it may be applied by spraying or any other appropriate means.
- the soils that can be treated in the context of the invention include, inter alia, cultivation, market gardening, cereal growing, viticulture and more generally, soils where various plants of agronomic interest, including various plants or flowers , are grown.
- the effect of the proanthocyanidin (s) used on denitrification will be obtained over a wide range of temperatures, especially at a soil temperature of 0 to 5 ° C. and with an optimum effect at a moisture content greater than 50% of the field capacity.
- proanthocyanidin (s) to achieve the desired denitrification limitation will be applied to the soil.
- the amount applied will be adapted by those skilled in the art, in particular, depending on the formulation and the soil moisture content. .
- from 0.01 to 10 mg / g of dry sol, and preferably from 0.05 to 5 mg / g of dry sol, of proanthocyanidene (s) is applied.
- These amounts are applicable to solid media, other than the self, mentioned above, in which the microorganisms could be present.
- proanthocyanidins and in particular type B procyanidins, make it possible to reduce the process of bacterial denitrification of soils.
- the results were obtained on strains of bacteria in culture, but also on ones of different natures (one of river edge and grassland soil) and containing communities of complex and different denitrifying bacteria,
- proanthocyaoidin may be associated, in the context of the invention, with one or more other fertilizers (nitrogen or phosphated, for example).
- At least one proanfhocyanidine may be applied to a culture soil, to promote the growth of said culture against denitrification caused by microorganisms, and in particular bacteria, present in said soi. Said application may be made without the joint application of a nitrogen fertilizer.
- a composition in solid or liquid form will be integrated in said medium.
- An effective amount of the ocyanidine proant (s) to achieve the desired denitrification limitation will be incorporated into said medium.
- the amount incorporated will be adapted by those skilled in the art.
- from 0.01 to 2.5 mg of proanthocyanidin (s) per milliliter of liquid medium, and preferably from 0.01 to 1 mg of proanthocyanidin (s) per milliliter of liquid medium will be incorporated.
- Fig. I Percent inhibition (relative to control) on the denitrification by Pseudomons brassicacearum of a mixture of the major compounds present in the alkaline bohemia and the Faptapta x bo emica extract.
- the vertical bars correspond to the variations obtained on the different tests.
- the stars indicate the significant variations relative to the control (Tukey test, ⁇ ⁇ 0.05).
- Figure 2 Chroroatograrnnie at 280 nm extract Faiiopia x bohemica showing proanthocyanidins and their monomers detected as well as their UV spectrum.
- Figure 4 Percentage inhibition of denitrification and respiration of a) Pseudomonas brassileacearum and b) E cereus as a function of concentration of purified proanthocyanidins »Stars indicate significant differences in means with control without proanthocyanidins (Tukey test a ⁇ 0.05).
- Figure S Percentage inhibition of denitrification of river (Ainii) and grassland ( ⁇ ' ) soils as a function of commercial proanthocyanidin concentration.
- the stars indicate significant differences in means with control (Tukey test, ⁇ 0.05).
- the extract was analyzed using a UHPLC 1290 infinity series apparatus (Agitate Technologies, Santa Clara, USA) coupled to a G4212A DAD diode array UV detector (Agitate Technologies, Santa Clara, USA) and Q-TGF 6530 series mass spectrometer (Agllent Technologies, Santa Clara, USA),
- UV spectra were recorded between 190 and 600 nm and the 280 nm response was used for qualitative interpretations.
- the ESI source was optimized as follows: Positive Ionization mode, 80/2000 m / z spectra scan, 3.0 kV capillary voltage, 70 V fragmentor, Collision-induced dissociation (CID) collision ) was set at 20 eV. Nitrogen was used as a gas nebiller with a flow of 12 l / min and a temperature of 310 ° C to 40 psi. Proanthocyanidins were identified in the extract by UV, HS and MS / MS spectra analysis using the MassHunter Qualitative Analyst software (Agitant Technologies, Santa Clara, USA), the spectra obtained being shown in Part II B).
- the proanthocyanidins contained in the E x bohe ica extract were purified using a Sephadex LH20 column.
- Sephadex LH 20 was previously equilibrated three times by wetting 25 g of Sephadex LH 20 with 100 ml of 80% ethanol and then removing the supernatant.
- Extracted Sephadex was loaded into a 10 ml glass buchner.
- Sephadex LH 20 was washed with ethanol. 95% until the absorbance of the water at 280 nro is close to zero.
- proanthocyanidins purified from F. x bohemica extracts was tested at concentrations of 0.1; 0.05; 0.01 or 0 mg.ml- 1 on the denitrification and respiration of Pseudomanas brassca ⁇ aru NFH421 and Badllus ⁇ reus A19, two denltriflant bacteria frequently found in soybeans, Four this, 5 ml of MB liquid growth medium with 20 mM NO.sub.2.
- Respiration measurements were performed in sealed plasma bottles by CO 2 accumulation assay . without replacing the atmosphere of the flasks.
- the N 2 O and C0 2 emitted were measured every two hours for 48 hours using a microcatheter (pGO 30Q0 f SRA instruments, Marcy tolle, France).
- proanthocyanidines commercial purified from grape seeds were used (Laffort, Bordeaux, France). Samples of two soils were collected at the Ainl sites (45 ° 57 ⁇ 53 ⁇ , 5 ⁇ 15'25 ⁇ ) and ⁇ (45 ° 48 ⁇ 5 " ⁇ , 5 ° 10 * 29" E) and sieved at 2 mm.
- the déûitrifîcatlon rate was measured emission% G every two hours for 30 hours under anaerobic conditions with a micro- cathanobooks (P6C-R30 ⁇ 0 f SRA instruments., Marcy l'Etoile, France).
- sols were suspended in 10 ml of 0.1M phosphate buffer (MaH 2 PG and NaHPO 3 pH 7.5) supplemented with glucose (0.5mg of C-glucose 1 ), glutamic acid ( 0.5 mg of glutamic C-atide.mr 1 ) and N £ 3 ⁇ 4 (20 mM).
- 0.1M phosphate buffer MoH 2 PG and NaHPO 3 pH 7.5
- proanthocyanidins on denitrification was measured for concentrations of 2.5; i; 0.5; 0.1; 0.05; 0.01 and 0 mg.ml * * in the end, adding water or proanthocyanidins to the soil suspensions.
- the soil suspensions were stirred at 28 ° C throughout the experiment. All treatments were performed in four replicates.
- a range of active proanthocyanidin concentrations on soil denitrification reported in g of dry soil was carried out.
- the soil used for this experiment is the so-called Ain IL.
- Ten grams of dry equivalent soil were incubated in a plasma bottle in the open air for? days at 28 ° C to field capacity, the equivalent of 10; 5; 1; 0.5; 0.1; 0.05; 0.01 and mg.
- the soils were supplemented with a solution of 0.5 ml containing the equivalent of 50 ⁇ gN-NCh.g- 1 sol dry, 0.5 mg of C-aclde glutarnique.g "1 dry soil and 0.5 mg of C-glucose.g "1 self sec.
- Proanthocyanidins detected by UHPLC in extract F, x bo EMICA are Type B procyanldines ranging from d mother téfcramère of catéchlne and epicatechin with a absorbaoce maximaie at 278 nm and molecular weights of 579.15, 867.21 and 1155.27 g mol -1 , as shown in Figures 2 and 3 (the spectrum of Fig 3 corresponds to the dimer, the spectrum of Figure 38 to the trimer and the spectrum of Figure 3C to the tetramer).
- the potential nitritlcafion of the two soil types was measured in suspension (1 g of dry equivalent sol per 10 ml) without proanthocyanidins (control) and in the presence of commercial proanthocyanidins, concentrated to 0.5; 0.1; 0.05 and 0.01 g / cm 3 in phosphate buffer solution at soil pH 7.5 (NaHiPC 2 and NaHPG 2 , 12 ⁇ 20) (to limit pH changes during incubation) supplemented with (NH SGs (SO g.mL "1). soils were placed in 150 ml flasks plasma aerobically blocked with psrafilm, flasks were set stirring at 140 rpm at 28 e C" Each conditions were realized in 4 replicas.
- Nltrifscation potential measurement (PBN "nltrifylng enzymatic actlvlty” ⁇ was performed by assaying the production of NC3 ⁇ 4 over time using an ionic dpf chromafographe Dionex DX 120 (Thermo Fisher Sclentific, Waltham, USA), in removing and filtering at 0.2 ⁇ m, 1 ml of suspension every 2 hours between 2 and 10 am
- the measurement of potential nitridation corresponds to the extent enzymatlque pool present in the sample initially, and is expressed by the production pg N- C .g "dry soil. fi 1 between 2 and 10 hours.
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
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- Pest Control & Pesticides (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
Description
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Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1552258A FR3033790B1 (fr) | 2015-03-19 | 2015-03-19 | Utilisation de proanthocyanidines pour limiter la denitrification |
| PCT/FR2016/050600 WO2016146955A1 (fr) | 2015-03-19 | 2016-03-17 | Utilisation de proanthocyanidines pour limiter la denitrification |
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| Publication Number | Publication Date |
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| EP3271312A1 true EP3271312A1 (fr) | 2018-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16715023.4A Withdrawn EP3271312A1 (fr) | 2015-03-19 | 2016-03-17 | Utilisation de proanthocyanidines pour limiter la denitrification |
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| Country | Link |
|---|---|
| EP (1) | EP3271312A1 (fr) |
| FR (1) | FR3033790B1 (fr) |
| WO (1) | WO2016146955A1 (fr) |
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| WO2014071182A1 (fr) | 2012-11-01 | 2014-05-08 | Massachusetts Institute Of Technology | Évolution dirigée d'une batterie de gènes synthétiques |
| KR102804055B1 (ko) | 2015-07-13 | 2025-05-08 | 피벗 바이오, 인크. | 식물 형질 개선을 위한 방법 및 조성물 |
| CA3001001A1 (fr) | 2015-10-05 | 2017-04-13 | Massachusetts Institute Of Technology | Fixation d'azote a l'aide d'agregats nif remodeles |
| CN116904333A (zh) | 2017-01-12 | 2023-10-20 | 皮沃特生物公司 | 用于改良植物性状的方法及组合物 |
| CN111527057A (zh) | 2017-10-25 | 2020-08-11 | 皮沃特生物股份有限公司 | 靶向改良植物性状的固氮的基因靶标 |
| MX2020004343A (es) | 2017-10-25 | 2021-01-08 | Pivot Bio Inc | Métodos y composiciones para mejorar microbios modificados que fijan nitrógeno. |
| CN107858311B (zh) * | 2017-12-07 | 2020-11-24 | 江西省农业科学院畜牧兽医研究所 | 一种木糖氧化无色杆菌x10及其应用 |
| WO2020006064A2 (fr) | 2018-06-27 | 2020-01-02 | Pivot Bio, Inc. | Compositions agricoles comprenant des microbes de fixation d'azote remodelés |
| EP3813511A4 (fr) | 2018-06-27 | 2022-08-03 | Pivot Bio, Inc. | Remodelage microbien guidé, plate-forme pour l'amélioration rationnelle d'espèces microbiennes pour l'agriculture |
| KR20210060434A (ko) | 2018-07-11 | 2021-05-26 | 피벗 바이오, 인크. | 리모델링된 미생물에 의한 시간적 및 공간적 표적화 동적 질소 전달 |
| AU2020206751A1 (en) | 2019-01-07 | 2021-07-01 | Pivot Bio, Inc. | Plant colonization assays using natural microbial barcodes |
| WO2020190363A1 (fr) | 2019-03-19 | 2020-09-24 | Massachusetts Institute Of Technology | Contrôle de la fixation de l'azote dans les bactéries rhizobium s'associant à des céréales |
| CA3129539A1 (fr) | 2019-04-25 | 2020-10-29 | Min-Hyung RYU | Methodes a haut debit d'isolement et de caracterisation de bibliotheques de mutants excretant de l'ammonium generees par mutagenese chimique |
| CN110257291B (zh) * | 2019-06-25 | 2021-07-23 | 北京大学 | 一株耐受镍离子毒性的无色杆菌及其应用 |
| AU2020445067A1 (en) | 2020-05-01 | 2022-12-01 | Pivot Bio, Inc. | Measurement of nitrogen fixation and incorporation |
| CA3172321A1 (fr) | 2020-05-01 | 2021-11-04 | Farzaneh REZAEI | Formulations liquides stables pour micro-organismes fixant l'azote |
| CN113234626A (zh) * | 2021-05-13 | 2021-08-10 | 安徽省农业科学院水产研究所 | 一种具有异养硝化-好氧反硝化功能的菌株及其应用 |
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| JP2000159669A (ja) * | 1998-11-26 | 2000-06-13 | Mikoo:Kk | ウレアーゼ阻害剤及びこれを含有する医薬及び食品組成物並びにウレアーゼ活性測定方法 |
| US20140190225A1 (en) * | 2004-10-04 | 2014-07-10 | Agresearch Limited | Altering animal waste composition |
| DK201200064U3 (da) * | 2012-04-16 | 2013-08-09 | Ok Biotech Aps | Anvendelse af plantetørstof indeholdende naturlige aktivstoffer |
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| Publication number | Publication date |
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| FR3033790A1 (fr) | 2016-09-23 |
| FR3033790B1 (fr) | 2018-05-04 |
| WO2016146955A1 (fr) | 2016-09-22 |
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