CN116970532B - 一株贪噬菌及其在促进植物生长中的应用 - Google Patents
一株贪噬菌及其在促进植物生长中的应用 Download PDFInfo
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Classifications
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
- C12N1/20—Bacteria; Culture media therefor
- C12N1/205—Bacterial isolates
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
- A01C1/06—Coating or dressing seed
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N63/00—Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
- A01N63/20—Bacteria; Substances produced thereby or obtained therefrom
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
- A01P21/00—Plant growth regulators
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- 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
- C05F11/08—Organic fertilisers containing added bacterial cultures, mycelia or the like
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- 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
- C05G3/80—Soil conditioners
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- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
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- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
- C12N1/20—Bacteria; Culture media therefor
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09K2101/00—Agricultural use
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- C12R—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES C12C - C12Q, RELATING TO MICROORGANISMS
- C12R2001/00—Microorganisms ; Processes using microorganisms
- C12R2001/01—Bacteria or Actinomycetales ; using bacteria or Actinomycetales
Abstract
本发明公开了贪噬菌(Variovorax sp.)C7,该菌株已于2022年12月14日在中国普通微生物菌种保藏管理中心保藏,保藏编号为CGMCC NO.26201。该菌株具有溶磷、解钾、产铁载体的功能。将其接种在琼脂平板培养基及土壤中,能显著提高植物的生物量、促进植物生长。该贪噬菌C7能够显著增加植物侧根数和总根长,促进根系发育。该贪噬菌C7对油菜、萝卜、小白菜以及模式植物拟南芥都具有较好的促生效果,可将其用于制备微生物肥料菌剂及种子包衣、促根剂等,对作物的生长能起到良好的促进作用。
Description
技术领域
本发明属于微生物资源开发技术领域,涉及一株贪噬菌及其在促进植物生长中的应用。
背景技术
我国是化肥的生产和消费大国,随着我国农业生产的发展,对化肥的需求也在不断增加,然而过多施用化肥导致土壤酸化、土壤结构破坏、土壤重金属积累,氮磷等养分经过雨水淋洗进入水体,造成水体富营养化。因此,减少化肥投入、提高养分利用率是目前农业上亟待解决的关键性问题。
微生物作为植物根系的相互作用者,对植物的生长有重要的作用。施用有效的微生物制成的微生物肥料,不仅能促进植物生长,还可减少化肥的使用,有利于改善土壤重金属污染,帮助植物获取营养元素,并且在一定程度上增强作物对病原菌的抵抗能力。利用微生物菌肥结合耕作方式改变,可以降低碳足迹,减少温室气体排放,这与国家的双碳目标计划相吻合。可见,开发微生物菌种资源、研制微生物菌肥是减少化肥投入、提高养分利用效率的重要途径之一。
目前挖掘出来的有益微生物大都来自土壤、根际等植物体外的环境,而内生菌占据着植物组织内有利于营养供应和微环境适宜的生态位,较体外的环境更容易形成高效的养分吸收利用体系。因此,本研究分离油菜根系内生菌,建立油菜根系内生菌资源库,从库中筛选出了能够高效促进植物生长和根系发育的菌株,有望将来制成微生物菌肥。
发明内容
有鉴于此,本发明的目的在于提供一株贪噬菌及其在促进植物生长中的应用,该菌株具有溶磷、解钾、产铁载体的促生特性,促进植物生长,可用于微生物菌剂肥料及种子包衣、促根剂的制备。
为达到上述目的,本发明提供如下技术方案:
1、一株贪噬菌,其为贪噬菌(Variovorax sp.)C7,已于2022年12月14日在中国普通微生物菌种保藏管理中心保藏,保藏编号为CGMCC NO.26201。
2、一种组合物,其包含前述贪噬菌。
3、一种制剂,其有效成分为前述贪噬菌。
4、前述贪噬菌、组合物或制剂在溶磷、解钾、产铁载体以及促进植物生长中的应用。
优选的,所述植物包括但不限于:油菜,萝卜,小白菜,拟南芥。
优选的,所述溶磷为溶解难溶磷、增加有效磷含量中的应用;所述难溶磷包括但不限于:磷酸钙,磷酸铝,磷酸铁。
优选的,促进植物生长包括:
(A)增加植物生长量;
(B)促进根系发育。
进一步优选的,步骤(B)包括:增加植物侧根数以及总根长。
5、前述贪噬菌、组合物或制剂在制备微生物菌肥、种子包衣或促根剂中的应用。
本发明的有益效果在于:
本发明提供了一株新的贪噬菌,即贪噬菌(Variovorax sp.)C7,该菌株已于2022年12月14日在中国普通微生物菌种保藏管理中心保藏,保藏编号为CGMCC NO.26201。该菌株具有溶磷、解钾、产铁载体的功能。将其接种在琼脂平板培养基及土壤中,能显著提高植物的生物量、促进植物生长。该贪噬菌C7能够显著增加植物侧根数和总根长,促进根系发育。该贪噬菌C7对油菜、萝卜、小白菜以及模式植物拟南芥都具有较好的促生效果,可将其用于制备微生物肥料菌剂及种子包衣、促根剂等,对作物的生长能起到良好的促进作用。
附图说明
为了使本发明的目的、技术方案和有益效果更加清楚,本发明提供如下附图进行说明。
图1为TSB固体培养基上菌株C7的菌落形态图;
图2为基于16S rDNA序列同源性的菌株C7系统发育进化树;
图3为菌株C7在无机磷固体培养基上产生的溶磷圈;
图4为菌株C7在有机磷固体培养基上产生的溶磷圈;
图5为检测菌株C7产铁载体的结果图;
图6为菌株C7促进油菜种子发芽的图片;
图7为在琼脂平板培养基上接种C7后对油菜幼苗生长的影响;
图8为在琼脂平板培养基上接种C7对油菜幼苗鲜重的影响;
图9为在琼脂平板培养基上接种C7对油菜幼苗侧根数影响;
图10为在琼脂平板培养基上接种C7对油菜幼苗总根长的影响;
图11为盆栽条件下接种C7对油菜鲜重的影响;
图12为盆栽条件下接种C7对油菜干重的影响;
图13为盆栽条件下接种C7对小白菜生长的影响;
图14为盆栽条件下接种C7对萝卜生长的影响。
保藏信息
分类命名:贪噬菌
拉丁文学名:Variovorax sp.
保藏单位名称:中国普通微生物菌种保藏管理中心(CGMCC)
保藏单位地址:北京市朝阳区北辰西路1号院3号
保藏日期:2022年12月14日
具体实施方式
下面将结合附图,对本发明的优选实施例进行详细的描述。
实施例1:菌株C7的鉴定
分离纯化后的菌株C7,其已保藏于中国微生物菌种保藏管理委员会普通微生物中心,保藏地点为北京市朝阳区北辰西路1号院3号,保藏编号为CGMCC NO.26201,保藏日期为2022年12月14日。
将菌液进行50倍稀释(DNA模板),用细菌通用的16S rDNA 27F/1492R引物对菌株的16S rDNA进行PCR扩增,扩增引物送去测序。PCR体系(30μL):PrimeSTAR MAX Premix 15μl,27F 1μl,1492R 1μl,DNA模板3μl,加水补至30μl。扩增条件:98℃2min;98℃10s,55℃15s,72℃10s,32个循环;72℃5min。通过1%的琼脂糖凝胶电泳检测PCR扩增产物,由北京擎科生物技术有限公司测序。测序结果在NCBI上进行BLAST比对,利用MEGA11软件构建菌株的系统发育树。图1为该菌株的菌落形态图,图2为该菌株的系统发育树,根据系统发育树,可知菌株C7属于贪噬菌属(Variovorax)。
实施例2:菌株C7的溶磷能力检测
有机磷液体培养基(L):葡萄糖10.0g,硫酸铵0.5g,酵母浸粉0.5g,氯化钠0.3g,氯化钾0.3g,硫酸镁0.3g,硫酸亚铁0.03g,硫酸锰0.03g,卵磷脂0.2g,碳酸钙1.0g,pH7.0±0.1。
有机磷固体培养基(L):在上述有机磷液体培养基的基础上添加15g琼脂。
无机磷液体培养基(L):葡萄糖10.0g,硫酸铵0.5g,酵母浸粉0.5g,氯化钠0.3g,氯化钾0.3g,硫酸镁0.3g,硫酸亚铁0.03g,硫酸锰0.03g,磷酸三钙5.0g,pH7.0±0.1。
无机磷固体培养基(L):在上述无机磷液体培养基的基础上添加15g琼脂。
将待测菌株活化,挑取单菌落于20ml左右的TSB液体培养基中培养,长至对数期后用无菌水重悬两次,调OD600值为0.50(CFU≈108)。吸取5μL菌悬液滴于有机磷/无机磷固体培养基上,倒置放入28℃恒温箱中培养。吸取200μl菌悬液于20ml有机磷/无机磷液体培养基中,放入恒温摇床中28℃、200r/min培养2天。
钼蓝比色法测定磷含量:将培养2天后的菌液10000r/min、10min进行离心,吸取50μl上清液于5ml去离子水中,加2,4-二硝基酚指示剂1滴,待测液变为黄色,用1mol/L H2SO4调至黄色刚退,准确加入1ml硫酸钼锑抗混合显色剂,定容至10ml,摇匀。放置0.5h使呈色稳定,在分光光度计上用660nm比色。
标准曲线的绘制:分别吸取2.5μg/ml标准溶液0.00、1.00、2.00、4.00、6.00、8.00ml于25ml量瓶中,加纯水5-10ml,加2,4-二硝基酚指示剂2滴,用2mol/LNaOH或1mol/LH2SO4调至溶液黄色刚好消失,准确加入硫酸钼锑抗混合显色剂2.5ml,定容摇匀,即得0.00、0.10、0.20、0.40、0.60、0.80μg/ml的磷标准显色液。
结果表明:根据图3和图4,菌株C7在无机磷、有机磷固体培养基上均能产生透明圈,无机磷液体培养基中测得的磷含量为65.18μg/ml,有机磷液体培养基中测得的磷含量为1.76μg/ml,表明菌株C7具有一定的溶解无机磷和有机磷的能力。
实施例3:菌株C7的解钾能力检测
解钾固体培养基:购自北京酷来博科技有限公司。
将待测菌株活化,挑取单菌落于20ml左右的TSB液体培养基中培养,长至对数期后用无菌水重悬两次,调OD600值为0.50(CFU≈108)。吸取5μL菌悬液滴于解钾固体培养基上,倒置放入28℃恒温箱中培养。
结果表明:培养三天后观察到菌落周围有明显的透明圈,表明菌株C7有一定的解钾能力。
实施例4:菌株C7的产铁载体实验
MKB固体培养基(1L):酪蛋白氨基酸5.0g,甘油15mL,K2HPO4 2.5g,MgSO4·7H2O0.2g,调pH为7.2,琼脂15g。
CAS固体检测培养基:将0.079g CAS溶于50ml去离子水中,再加入10ml
1mmol/LFeCl3溶液(用盐酸配制,准确称取0.0270g FeCl3·6H2O,用10mmol/L的盐酸定容至100ml),得溶液A;将0.069g十六烷基三甲基溴化铵(HDTMA)溶于40ml的去离子水中,得溶液B;将A溶液沿烧杯壁缓缓加入B溶液中,搅拌混匀即得100ml CAS(10×)蓝色检测液。使用时将10×CAS检测液稀释并添加质量浓度0.9%的琼脂。
将待测菌株活化,挑取单菌落于20ml左右的TSB液体培养基中培养,长至对数期后用无菌水重悬两次,调OD600值为0.50(CFU≈108)。吸取5μl调好的菌悬液滴于MKB固体培养基上,倒置放于28℃恒温培养箱中培养3天。将CAS固体检测培养基高温高压灭菌,待冷却至45℃左右时倒入培养3天后的MKB固体培养基中,静置2小时观察菌落周围颜色的变化。若菌落周围形成黄色圈,则证明菌株能够产生铁载体。
结果表明:根据图5,菌株C7形成的菌落周围有较为明显的黄色圈,表明菌株C7能够产生铁载体。
实施例5:菌株C7促进油菜发芽的实验
菌株培养及处理:将菌株保存在-80℃冰箱中,取出菌株后在TSB固体培养基上划线,完成后放入28℃恒温培养箱中培养。待培养基上长出单菌落,挑取单菌落于20ml TSB液体培养基中培养,培养至菌株生长对数期,6000r/min、8min离心,加入20ml无菌水,吹打混匀,再次离心,重复上述操作一次,离心,调OD600值为0.50(CFU≈108)待用。
种子消毒:挑选质地、大小、颜色一致的油菜种子进行消毒,先用体积浓度75%的酒精浸泡2min,无菌水清洗三遍,再用体积浓度10%的次氯酸钠浸泡5min,无菌水清洗六遍,直至将次氯酸钠完全清洗干净。
播种:配制1/4MS培养基,添加质量浓度1%蔗糖、质量浓度1%琼脂,121℃高温高压灭菌20min,待培养基冷却到45℃左右时,倒20ml至无菌培养皿(90mm)中。将以上消毒好的种子放入调好的菌悬液中浸泡2小时,浸泡完成后将菌悬液吸出,种子放于无菌滤纸上吸干水分,每板30颗播种于1/4MS培养基中,放于光照培养间生长。生长5天后统计相应指标。
表1接种C7对油菜种子萌发后芽长的影响
结果表明:根据表1和图6,菌株C7的菌悬液浸泡后使油菜种子芽长提高了49%,表明菌株C7能够促进油菜种子的发芽。
实施例6:菌株C7促进油菜生长的琼脂平板实验
菌株培养及处理:将菌株保存在-80℃冰箱中,取出菌株后在TSB固体培养基上划线,完成后放入28℃恒温培养箱中培养。待培养基上长出单菌落,挑取单菌落于20ml TSB液体培养基中培养,培养至菌株生长对数期,6000r/min、8min离心,加入20ml无菌水,吹打混匀,再次离心,重复上述操作一次,离心,调OD600值为0.50(CFU≈108)待用。
种子消毒:挑选质地、大小、颜色一致的油菜种子进行消毒,先用体积浓度75%的酒精浸泡2min,无菌水清洗三遍,再用体积浓度10%的次氯酸钠浸泡5min,无菌水清洗六遍,直至将次氯酸钠完全清洗干净。
播种:配制1/4MS培养基,添加质量浓度1%的蔗糖,分装进200ml玻璃瓶中,加质量浓度1%的琼脂,121℃高温高压灭菌20min,待培养基冷却到45℃左右时,添加2ml调好OD600值的菌液,摇晃均匀后倒入25cm×25cm的无菌方皿中,以加入2ml无菌水为对照。将消毒好的油菜种子均匀点于培养基上,平放于黑暗中直至萌发。萌发后将平板倾斜一定角度放于光照培养箱中培养9天。
结果表明:根据图7、图8、图9、图10,与不接菌对照相比,接种菌株C7使地上部、地下部鲜重及整株鲜重显著增加,显著增加了侧根数和总根长。表明菌株C7在一定程度上改变了根系构型,促进了油菜对养分的吸收和利用。
实施例7:菌株C7促进油菜生长的盆栽实验
菌株培养及处理:将菌株保存在-80℃冰箱中,取出菌株后在TSB固体培养基上划线,完成后放入28℃恒温培养箱中培养。待培养基上长出单菌落,挑取单菌落于20ml TSB液体培养基中培养,培养至菌株生长对数期,6000r/min、8min离心,加入20ml磷酸盐缓冲液,吹打混匀,再次离心,重复上述操作一次,然后离心,调OD600值为0.50(CFU≈108)待用。
种子消毒:挑选质地、大小、颜色一致的油菜种子进行消毒,先用体积浓度75%的酒精浸泡2min,无菌水清洗三遍,再用体积浓度10%的次氯酸钠浸泡5min,无菌水清洗六遍,直至将次氯酸钠完全清洗干净。
播种:将消毒好的种子点于1/4MS平板上,发芽后浸泡于调好OD600值的菌悬液中2小时,以浸泡于无菌磷酸盐溶液中的种子为对照。2小时后将菌悬液倒出,种子播种于无菌土壤中(土:蛭石:珍珠岩的体积比为6:3:1,121℃高温高压灭菌两次)。放于光照培养箱中培养,当油菜长至四叶期,每盆接种2ml菌悬液,对照接种2ml无菌磷酸盐缓冲液。播种24天后进行收获,统计相应指标。
结果表明:根据图11和图12,接种C7使油菜地上部鲜重增加了52.11%,使干重增加了51.34%,表明菌株C7能够显著促进油菜的生长。
实施例8:菌株C7促进小白菜、萝卜生长的盆栽实验
挑选质地、大小、颜色一致的小白菜、萝卜种子进行播种,播种完成后每盆浇10mlOD600约0.5的菌悬液,同时浇20ml水使土壤全部浸湿。生长20天后收获,统计相应指标。
表2菌株C7对小白菜和萝卜鲜重、干重的影响
结果表明:根据表2、图13和图14,接种C7显著促进了小白菜、萝卜株高、鲜重,表明C7不仅能促进油菜的生长,还能促进其它园艺作物的生长,将来有望作为一种促生菌剂用于多种作物。
实施例9:菌株C7促进模式植物拟南芥生长的实验
菌株培养及处理:将菌株保存在-80℃冰箱中,取出菌株后在TSB固体培养基上划线,完成后放入28℃恒温培养箱中培养。待培养基上长出单菌落,挑取单菌落于20ml TSB液体培养基中培养,培养至菌株生长对数期,6000r/min、8min离心,加入20ml无菌水,吹打混匀,再次离心,重复上述操作一次,然后离心,调OD600值为0.50(CFU≈108)待用。
种子消毒:挑选质地、大小、颜色一致的拟南芥种子进行消毒,先用体积浓度75%的酒精浸泡2min,无菌水清洗三遍,再用体积浓度10%的次氯酸钠浸泡5min,无菌水清洗六遍,直至将次氯酸钠完全清洗干净。
播种:配制1/4MS培养基,添加质量浓度1%蔗糖,加质量浓度1%琼脂,121℃高温高压灭菌20min,待培养基冷却到45℃左右时,每200ml培养基中添加600微升菌液,摇晃均匀后倒入13cm×13cm的无菌方皿中,以加入600微升无菌水为对照。将消毒好的拟南芥种子均匀点于培养基上,4℃春化两天。萌发后将平板倾斜一定角度放于光照培养箱中培养12天。选取文献中(The Plant Growth-Promoting Rhizobacterium Variovoraxboronicumulans CGMCC 4969Regulates the Level of Indole-3-Acetic AcidSynthesized from Indole-3-Acetonitrile,Applied and EnvironmentalMicrobiology,2018.)报道过的有一定促生功能的贪噬菌属的菌株Variovoraxboronicumulans CGMCC 4969做对照,整体鲜重数据如表3所示。
表3贪噬菌CGMCC 4969、C7对拟南芥整体鲜重的影响
结果表明:根据表3可以看出,接种菌株C7、CGMCC 4969后拟南芥整体鲜重分别较未接种增加了40%、24%,菌株C7的促生效果要强于已经报道过的有促生功能的菌株Variovorax boronicumulans CGMCC 4969,表明该菌株C7具有较好的促生效果和应用潜力。
最后说明的是,以上优选实施例仅用以说明本发明的技术方案而非限制,尽管通过上述优选实施例已经对本发明进行了详细的描述,但本领域技术人员应当理解,可以在形式上和细节上对其作出各种各样的改变,而不偏离本发明权利要求书所限定的范围。
Claims (9)
1.一株贪噬菌,其特征在于,其为贪噬菌(Variovorax sp.)C7,已于2022年12月14日在中国普通微生物菌种保藏管理中心保藏,保藏编号为CGMCC NO. 26201。
2.一种组合物,其特征在于,其包含权利要求1所述贪噬菌。
3.一种制剂,其特征在于,其有效成分为权利要求1所述贪噬菌。
4.权利要求1所述贪噬菌、权利要求2所述组合物或权利要求3所述制剂在溶磷、解钾、产铁载体中的应用。
5.根据权利要求4所述的应用,其特征在于,所述溶磷为溶解难溶磷、增加有效磷含量中的应用;所述难溶磷包括但不限于:磷酸钙,磷酸铝,磷酸铁。
6.权利要求1所述贪噬菌、权利要求2所述组合物或权利要求3所述制剂在促进植物生长中的应用,所述植物为:油菜,萝卜,小白菜,拟南芥。
7.根据权利要求6所述的应用,其特征在于,促进植物生长包括:
(A)增加植物生长量;
(B)促进根系发育。
8.根据权利要求7所述的应用,其特征在于,步骤(B)包括:增加植物侧根数以及总根长。
9.权利要求1所述贪噬菌、权利要求2所述组合物或权利要求3所述制剂在制备微生物菌肥、种子包衣或促根剂中的应用。
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CN113122480A (zh) * | 2021-05-07 | 2021-07-16 | 河北萌帮生物科技有限公司 | 一种争论贪噬菌、用途及转化褐煤生产腐植酸的方法 |
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