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Rhizobium Inoculation and Micronutrient Addition Influence the Growth,Yield,Quality and Nutrient Uptake of Garden Peas(Pisum sativum L.)

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Phyton-International Journal of Experimental Botany 2024年第5期93卷 901-922页

作者： MdAbdul Quddus MdAtaur Rahman Razu Ahmed Mohammad Eyakub Ali Khokan Kumer Sarker MdAlamgir Siddiky Mohibur Rahman Lamya Ahmed Alkeridis Samy Sayed Ahmed Gaber Akbar Hossain Horticulture Research Centre Bangladesh Agricultural Research InstituteGazipur1701Bangladesh Soil Science Division Bangladesh Agricultural Research InstituteGazipur1701Bangladesh Irrigation and Water Management Division Bangladesh Agricultural Research InstituteGazipur1701Bangladesh Regional Agricultural Research Station Bangladesh Agricultural Research InstituteCumilla3500Bangladesh Department of Biology College of SciencePrincess Nourah Bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Department of Science and Technology University College‑RanyahTaif UniversityP.O.Box 11099Taif21944Saudi Arabia Department of Economic Entomology and Pesticides Faculty of AgricultureCairo UniversityGiza12613Egypt Department of Genetics Faculty of AgricultureCairo UniversityGiza12613Egypt Department of Biology College of ScienceTaif UniversityTaif21944Saudi Arabia Division of Soil Science Bangladesh Wheat and Maize Research InstituteDinajpur5200Bangladesh

Garden pea productivity and qualities are hampered in zinc(Zn),boron(B),and molybdenum(Mo)deficient soil.Thus,the combination of micronutrients(i.e.,Zn,B,and Mo)and rhizobium is necessary to increase the productivity and quality of garden peas,since this management for garden peas is neglected in Bangladesh.Therefore,the present study was made to assess the effectiveness of rhizobium inoculant singly or in combination with the micronutrients(i.e.,Zn,B,and Mo)on growth,yield,nutrient uptake,and quality of garden peas.Treatments were:T_(1)=Control,T_(2)=Rhizobium inoculation at 50 g/kg seed,T_(3)=T_(2)+Zn_(3)Mo1,T_(4)=T_(2)+B_(2)Mo1,T_(5)=T_(2)+Zn_(3)B_(2),T_(6)=T_(2)+Zn_(3)B_(2)Mo1 and T_(7)=Zn_(3)B_(2)Mo1.All treatments were arranged in a randomized complete block design and repeated all treatments in three times.The application of 3 kg Zn,2 kg B,and 1 kg Mo ha^(−1)with inoculation of Rhizobium at 50 g kg^(−1)seed(T_(6))facilitated to increase of 44.8%in the green pod and 29.7%seed yield over control.The same treatment contributed to attaining the maximum nodulation(25.3 plant^(−1)),Vitamin C(43.5 mg 100 g^(−1)),protein content(22.2%),and nutrient uptake as well as accumulation in garden peas.Among all treatment combinations,treatment T_(6)was found superior to others based on microbial activities,soil fertility,and profitability.The results of the study found that the application of 3 kg Zn,2 kg B,and 1 kg Mo ha^(−1)in combination with Rhizobium inoculation(50 g kg^(−1)seed)can improve the yield and quality of garden peas.The results of the study have the potential for the areas,where there is no use of Rhizobium inoculant or Zn,B,and Mo fertilizer for cultivation of garden pea.

关键词： nodulation nutrient content Pisum sativum L. profitability rhizobium Zn B Mo

GmBES1-1 dampens the activity of GmNSP1/2 to mediate brassinosteroid inhibition of nodulation in soybean

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Plant Communications 2023年第6期4卷 244-258页

作者： Xu Chen Xiaotong Hu Haijiao Wang Jing Liu Yaqi Peng Chunmei He Miao He Xuelu Wang Center of Integrative Biology College of Life Science and TechnologyHuazhong Agricultural UniversityWuhan 430070China State Key Laboratory of Crop Stress Adaptation and Improvement School of Life SciencesHenan UniversityZhengzhou 450046China Academy for Advanced Interdisciplinary Studies Henan UniversityZhengzhou 450046China Sanya Institute of Henan University Sanya 572025China

Soybean(Glycine max)forms root nodules to house rhizobial bacteria for biological nitrogen fixation.The development of root nodules is intricately regulated by endogenous and exogenous cues.The phytohormones brassinosteroids(BRs)have been shown to negatively regulate nodulation in soybean,but the underlying genetic and molecular mechanisms remain largely unknown.Here,we performed transcriptomic analyses and revealed that BR signaling negatively regulates nodulation factor(NF)signaling.We found that BR signaling inhibits nodulation through its signaling component GmBES1-1 by dampening NF signaling and nodule formation.In addition,GmBES1-1 can directly interact with both GmNSP1 and GmNSP2 to inhibit their interaction and the DNA-binding activity ofGmNSP1.Furthermore,BR-induced nuclear accumulation of GmBES1-1 is essential for inhibiting nodulation.Taken together,our results demonstrate that regulation ofGmBES1-1 subcellular localization by BRs plays a key role in the legume–rhizobium symbiosis and plant development,indicating a crosstalk mechanism between phytohormone and symbiosis signaling pathways.

关键词： nodulation brassinosteroid crosstalk GmBES1-1 GmNSP1/2

Right time, right place: The dynamic role of hormones in rhizobial infection and nodulation of legumes

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Plant Communications 2022年第5期3卷 5-18页

作者： Karen Velandia James B.Reid Eloise Foo Discipline of Biological Sciences School of Natural SciencesUniversity of TasmaniaPrivate Bag 55HobartTAS 7001Australia

Many legume plants form beneficial associations with rhizobial bacteria that are hosted in new plant rootorgans, nodules, in which atmospheric nitrogen is fixed. This association requires the precise coordinationof two separate programs, infection in the epidermis and nodule organogenesis in the cortex. There isextensive literature indicating key roles for plant hormones during nodulation, but a detailed analysis ofthe spatial and temporal roles of plant hormones during the different stages of nodulation is required.This review analyses the current literature on hormone regulation of infection and organogenesis to revealthe differential roles and interactions of auxin, cytokinin, brassinosteroids, ethylene, and gibberellins during epidermal infection and cortical nodule initiation, development, and function. With the exception ofauxin, all of these hormones suppress infection events. By contrast, there is evidence that all of these hormones promote nodule organogenesis, except ethylene, which suppresses nodule initiation. This differential role for many of the hormones between the epidermal and cortical programs is striking. Future work isrequired to fully examine hormone interactions and create a robust model that integrates this knowledgeinto our understanding of nodulation pathways.

关键词： auxin brassinosteroids cytokinin ethylene gibberellin nodulation

GmNLP7a inhibits soybean nodulation by interacting with GmNIN1a

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作物学报:英文版 2023年第5期11卷 1401-1410页

作者： Xuesong Wu Yuping Xiong Jingjing Lu Mi Yang Hongtao Ji Xia Li Zhijuan Wang National Key Laboratory of Crop Genetic Improvement College of Plant Science and TechnologyHuazhong Agricultural UniversityWuhan 430070HubeiChina

Nitrogen(N) is an essential macronutrient for plant growth and productivity. Leguminous plants establish symbiotic relationships with nitrogen-fixing rhizobial bacteria to use atmospheric dinitrogen gas to meet high N demand under low-N conditions. Nodule formation and N fixation are energy-consuming processes and are inhibited by nitrate present in the environment. Previous studies in model leguminous plants characterized NIN-LIKE PROTEIN(NLP) proteins that mediate nitrate control of root nodule symbiosis, but the mechanism by which nitrate regulates soybean root nodules via NLP remains unclear. In the soybean genome we found four homologs of AtNLP7, named GmNLP7a–GmNLP7d. We showed that the expression of GmNLP7s is responsive to nitrate but not to rhizobial infection and localized GmNLP7a to the nucleus. Downregulation of GmNLP7s increased nodule number, and overexpression of GmNLP7a(GmNLP7aOE) reduced nodule number regardless of nitrate availability, suggesting a negative role for GmNLP7s in nodulation. Nitrogenase activity in the GmNLP7aOE line was comparable to that of the wild type, indicating that GmNLP7a does not affect mature nodule activity. Overexpression of GmNLP7a downregulated the expression of GmNIN1a and GmENOD40-1. GmNLP7a interacted with GmNIN1a via the PB1domain. Our results reveal a new regulator of GmNLP7 in nodulation and a molecular mechanism by which nitrate affects nodule number in soybean.

关键词： nodulation Nitrate GmNLP7 Soybean

GmNMHC5 may promote nodulation via interaction with GmGAI in soybean

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The Crop Journal 2022年第1期10卷 273-279页

作者： Wenting Wang Zhili Wang Wensheng Hou Li Chen Bingjun Jiang Wenya Ma Lijuan Bai Wenwen Song Cailong Xu Tianfu Han Yongjun Feng Cunxiang Wu School of Life Science Beijing Institute of TechnologyBeijing 100081China MARA Key Laboratory of Soybean Biology(Beijing) Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China

Soybean(Glycine max[L.]Merr.)is a food and oil crop whose growth and yield are influenced by root and nodule development.In the present study,Gm NMHC5 was found to promote the formation of nodules in overexpressing mutants.In contrast,the number of nodules in Gmnmhc5 edited with CRISPR/Cas9 decreased sharply.In 35 S:Gm NMHC5 mutants,expression levels of genes involved in nodulation were significantly up-regulated.Both in vitro and in vivo biochemical analyses showed that Gm NMHC5 directly interacted with Gm GAI(a DELLA protein),and the content of gibberellin 3(GA_(3))in overexpressing mutants was lower than that in the wild type.These results revealed that Gm NMHC5 participates in the classical GA signaling pathway,and may regulate the content of GA_3 to match the optimal concentration required for nodule formation,thereby promoting nodulation by directly interacting with Gm GAI.A model illustrating the mechanism by which Gm NMHC5 promotes soybean nodulation is presented.

关键词： Glycine max GmNMHC5 GmGAI nodulation GA pathway

nodulation and molecular characterization of pure culturesisolated from root nodules of Coriaria nepalensis

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Chinese Science Bulletin 1998年第8期43卷 695-698页

作者： Chuanjiong Hu Pingzhen Zhou Qi Zhou Huakui Chen A. D. L. Akkermans Huazhong Agr Univ Coll Life Sci & Technol Wuhan 430062 Peoples R China Chinese Acad Agr Sci Inst Oil Crops Wuhan 430062 Peoples R China Agr Univ Wageningen Dept Microbiol NL-6703 CT Wageningen Netherlands

Four strains with typical morphology of actinomycete genus of Frankia were isolated from root nodules of Coriaria nepalensis. They were shown to nodulate the seedlings of host plant and hybridize with Frankia 16S rRNA targeted oligonucleotide probes, indicating that they did belong to the genus Frankia. Furthermore, by nifHDK probe hybridizations, the homologous fragments of nifHDK genes were detected among the bacteria, and they were located in various sizes of restriction fragments of total DNA, showing diverse patterns of restriction fragment length polymorphisms of nifHDK gene (nifHDK_RFLPs). The PCR_based amplification and cloning of nifH gene throw light on the molecular phylogeny of Coriaria_infective Frankia.

关键词： Frankia Coriaria nepalensis nodulation molecular characterization.

A GmNINa-miR172c-NNC1 Regulatory Network Coordinates the nodulation and Autoregulation of nodulation Pathways in Soybean

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Molecular Plant 2019年第9期12卷 1211-1226页

作者： Lixiang Wang Zhengxi Sun Chao Su Yongliang Wang Qiqi Yan Jiahuan Chen Thomas Ott Xia Li State Key Laboratory of Agricultural Microbiology College of Plant Science and TechnologyHuazhong Agricultural UniversityNo.1 Shizishan RoadHongshan DistrictWuhanHubei 430070P.R.China College of Biological Science and Engineering Panzhihua UniversityNo.10 Airport RoadEastern DistrictPanzhihuaSichuanChina University of Freiburg.Faculty of Biology.University of Freiburg Schdnz丨estrasse 179104 Freiburg.Germany CIBSS-Centre for Integrative Biological Signalling Studies University of Freiburg79104 FreiburgGermany

Symbiotic root nodules are root lateral organs of plants in which nitrogen-fixing bacteria(rhizobia)convert atmospheric nitrogen to ammonia.The formation and number of nodules in legumes are precisely controlled by a rhizobia-induced signal cascade and host-controlled autoregulation of nodulation(AON).However,how these pathways are integrated and their underlying mechanisms are unclear.Here,we report that microRNA172c(miR172c)activates soybean(Glycine max)R hizobia-induced CLE1(GmRICI)and GmRIC2 by removing the transcriptional repression of these genes by Nodule Number Control 1(NNC1),leading to the activation of the AON pathway.NNC1 interacts with GmNINa,the soybean ortholog of Lotus NODULE INCEPTION(NIN),and hampers its transcriptional activation o i G m RICI and GmRIC2.Importantly,GmNINa acts as a transcriptional activator of miR172c.Intriguingly,NNC1 can transcriptionally repress miR172c expression,adding a negative feedback loop into the NNC1 regulatory network.Moreover,GmNINa interacts with NNC1 and can relieve the NNC1-mediated repression of miR172c transcription.Thus,the GmNINa-miR172c-NNC1 network is a master switch that coordinately regulates and optimizes NF and AON signaling,supporting the balance between nodulation and AON in soybean.

关键词： nodule number autoregulation of nodulation miR172c-NNC1 negative feedback loop nodule inception

The nodulation and nyctinastic leaf movement is orchestrated by clock gene LHY in Medicago truncatula

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Journal of Integrative Plant Biology 2020年第12期62卷 1880-1894页

作者： Yiming Kong Lu Han Xiu Liu Hongfeng Wang Lizhu Wen Xiaolin Yu Xiaodong Xu Fanjiang Kong Chunxiang Fu Kirankumar S.Mysore Jiangqi Wen Chuanen Zhou The Key Laboratory of Plant Development and Environmental Adaptation Biology Ministry of EducationSchool of Life ScienceShandong UniversityQingdao 266237China School of Life Sciences Guangzhou UniversityGuangzhou 510006China Key Laboratory of Plant Stress Biology School of Life SciencesHenan UniversityKaifeng 475001China Shandong Provincial Key Laboratory of Energy Genetics Key Laboratory of BiofuelsQingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdao 266101China Noble Research Institute LLCArdmoreOklahomaUSA

As sessile organisms,plants perceive,respond,and adapt to the environmental changes for optimal growth and survival.The plant growth and fitness are enhanced by circadian clocks through coordination of numerous biological events.In legume species,nitrogen-fixing root nodules were developed as the plant organs specialized for symbiotic transfer of ni-trogen between microsymbiont and host.Here,we report that the endogenous circadian rhythm in nodules is regulated by MtLHY in legume species Medicago truncatula.Loss of function of MtLHY leads to a reduction in the number of nodules formed,resulting in a diminished ability to assimilate nitrogen.The operation of the 24-h rhythm in shoot is further influenced by the availability of nitrogen produced by the nodules,leading to the irregulated nyctinastic leaf movement and reduced biomass in mtlhy mutants.These data shed new light on the roles of MtLHY in the orchestration of circadian oscillator in nodules and shoots,which provides a mechanistic link between nodulation,nitrogen assimilation,and clock function.

关键词： nodulation movement nodules

Mechanistic action of gibberellins in legume nodulation

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Journal of Integrative Plant Biology 2014年第10期56卷 971-978页

作者： Satomi Hayashi Peter M.Gresshoff Brett J.Ferguson Centre for Integrative Legume Research The University of Queensland

Legume plants are capable of entering into a symbiotic relationship with rhizobia bacteria.This results in the formation of novel organs on their roots,called nodules,in which the bacteria capture atmospheric nitrogen and provide it as ammonium to the host plant.Complex molecular and physiological changes are involved in the formation and establishment of such nodules.Several phytohormones are known to play key roles in this process.Gibberellins（gibberellic acids;GAs）,a class of phytohormones known to be involved in a wide range of biological processes（i.e.,cell elongation,germination）are reported to be involved in the formation and maturation of legume nodules,highlighted by recent transcriptional analyses of early soybean symbiotic steps.Here,we summarize what is currently known about GAs in legume nodulation and propose a model of GA action during nodule development.Results from a wide range of studies,including GA application,mutant phenotyping,and gene expression studies,indicate that GAs are required at different stages,with an optimum,tightly regulated level being key to achieve successful nodulation.Gibberellic acids appear to be required at two distinct stages of nodulation：（i）early stages of rhizobia infection and nodule primordium establishment;and（ii）later stages of nodule maturation.

关键词： Gibberellic acid legume nodulation phytohormone plant development rhizobia symbiosis