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A glycine-rich nuclear effector VdCE51 of Verticillium dahliae suppresses plant immune responses by inhibiting the accumulation of GhTRXH2

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The Crop Journal 2024年第4期12卷 1137-1149页

作者： Chi Li Yingqi Huang Wenjing Shang Jieyin Chen Steven J.Klosterman Krishna V.Subbarao Jun Qin Xiaoping Hu State Key Laboratory of Crop Stress Resistance and High-Efficiency Production Key Laboratory of Plant Protection Resources and Pest Management of Ministry of EducationKey Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural AffairsCollege of Plant ProtectionNorthwest A&F UniversityYangling 712100ShaanxiChina State Key Laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing 100193China Western agricultural Research Center Chinese Academy of Agricultural SciencesChangji 831100XinjiangChina agricultural Research Service United States Department of AgricultureSalinasCA 93905USA Department of Plant Pathology University of CaliforniaDavisc/o United States Agricultural Research StationSalinasCA 93905USA

Verticillium dahliae is an important soil-borne fungal pathogen that causes great yield losses in many cash *** of this fungus are known to regulate plant immunity but the mechanism much remains unclear.A glycine-rich nuclear effector,VdCE51,was able to suppress immune responses in tobacco against Botrytis cinerea and Sclerotinia *** effector was a required factor for full virulence of ***,and its nuclear localization was a requisite for suppressing plant *** thioredoxin GhTRXH2,identified as a positive regulator of plant immunity,was a host target of *** findings show a virulence regulating mechanism whereby the secreted nuclear effector VdCE51 interferes with the transcription of PR genes,and the SA signaling pathway by inhibiting the accumulation of GhTRXH2,thus suppressing plant immunity.

关键词： Verticillium dahliae Plant immunity Effector Thioredoxin

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Impacts of high temperature, relative air humidity, and vapor pressure deficit on the seed set of contrasting maize genotypes during flowering

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Journal of Integrative Agriculture 2024年第9期 2955-2969页

作者： Xin Dong Baole Li Zhenzhen Yan Ling Guan Shoubing Huang Shujun Li Zhiyun Qi Ling Tang Honglin Tian Zhongjun Fu Hua Yang Chongqing Academy of agricultural Sciences College of Agronomy and Biotechnology China Agricultural University

Heat stress is a major constraint to current and future maize production at the global scale. Male and female reproductive organs both play major roles in increasing seed set under heat stress at flowering, but their relative contributions to seed set are unclear. In this study, a 2-year field experiment including three sowing dates in each year and 20 inbred lines was conducted. Seed set, kernel number per ear, and grain yield were all reduced by more than 80% in the third sowing dates compared to the first sowing dates. Pollen viability, silk emergence ratio, and anthesis–silking interval were the key determinants of seed set under heat stress; and their correlation coefficients were 0.89***, 0.65***, and –0.72***, respectively. Vapor pressure deficit（VPD） and relative air humidity（RH） both had significant correlations with pollen viability and the silk emergence ratio. High RH can alleviate the impacts of heat on maize seed set by maintaining high pollen viability and a high silk emergence ratio. Under a warming climate from 2020 to 2050, VPD will decrease due to the increased RH. Based on their pollen viability and silk emergence ratios, the 20 genotypes fell into four different groups. The group with high pollen viability and a high silk emergence ratio performed better under heat stress, and their performance can be further improved by combining the improved flowering pattern traits.

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Stochastic community assembly of abundant taxa maintains the relationship of soil biodiversity-multifunctionality under mercury stress

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Soil Ecology Letters 2024年第2期6卷 163-177页

作者： Shuai Du Xin-Qi Li Li Bi Dong Zhu Hang-Wei Hu Xiuli Hao Jiao Feng Qiaoyun Huang Yu-Rong Liu Key Laboratory of Urban Environment and Health Ningbo Urban Environment Observation and Research StationInstitute of Urban EnvironmentChinese Academy of SciencesXiamen361021China College of Resources and Environment Huazhong Agricultural UniversityWuhan430070China School of Agriculture and Food Faculty of Veterinary and Agricultural SciencesThe University of MelbourneParkvilleVIC3010Australia Hubei Key Laboratory of Soil Environment and Pollution Remediation Huazhong Agricultural UniversityWuhan430070China

Soil abundant taxa diversity positively related to multifunctionality under Hg stress.•Microbial network complexity of soil abundant taxa supported the strength of SBF.•Stochastic assembly of soil abundant subcommunity supported the strength of SBF.•Stochastic ratio was the most important predictor for the strength of *** is known that soil microbial communities are intricately linked to multiple ecosystem functions and can maintain the relationship between soil biodiversity and multifunctionality(SBF)under environmental ***,the relative contributions and driving forces of abundant and rare taxa within the communities in maintaining soil biodiversity-multifunctionality relationship under pollution stresses are still ***,we conducted microcosm experiments to estimate the importance of soil abundant and rare taxa in predicting these relationships under heavy metal mercury(Hg)stress in paired paddy and upland *** results revealed that the diversity of abundant taxa,rather than rare taxa,was positively related to multifunctionality,with the abundant subcommunity tending to maintain a larger proportion of soil functions including chitin degradation,protein degradation,and phosphorus *** multitrophic network complexity consisting of abundant species showed positive correlations with biodiversity and multifunctionality,and supported the strength of SBF within a network complexity *** assembly processes of the abundant subcommunity were positively correlated with the strength of SBF,although stochastic processes decreased the biodiversity and the multifunctionality,*** simultaneously accounting for multiple factors on the strength of SBF,we found that the stochastic community assembly ratio of abundant taxa was the most important predictor for SBF strength under Hg *** results highlight the importance of abundant taxa in supporting soil multifunctionality,and elucidate the linkages between co

关键词： abundant taxa biodiversity-multifunctionality relationship community assembly network complexity environmental stresses

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Development of an Agrobacterium-mediated CRISPR/Cas9 gene editing system in jute(Corchorus capsularis)

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The Crop Journal 2024年第4期12卷 1266-1270页

作者： Shaolian Jiang Qin Li Xiangxue Meng Mengxin Huang Jiayu Yao Chuanyu Wang Pingping Fang Aifen Tao Jiantang Xu Jianmin Qi Shuangxia Jin Liwu Zhang Key Laboratory of Ministry of Education for Genetic Breeding and Multiple Utilization of Crops Fujian Agriculture and Forestry UniversityFuzhou 350002FujianChina experiment station of Ministry of Agriculture and Rural Affairs for Jute and Kenaf in Southeast China/Fujian Public Platform for Germplasm Resources of Bast Fiber Crops/Fujian Provincial Key Laboratory of Crop Breeding by Design/Key Laboratory of Ministry of Agriculture and Rural Affairs for Biological Breeding of Fujian and Taiwan Crops Fujian Agriculture and Forestry UniversityFuzhou 350002FujianChina National Key Lab of Crop Genetic Improvement Huazhong Agricultural UniversityWuhan 430070HubeiChina

Jute(Corchorus capsularis L.)is the second most important natural plant fiber source after ***,developing an efficient gene editing system for jute remains a *** this study,the transgenic hairy root system mediated by Agrobacterium rhizogenes strain K599 was developed for Meifeng 4,an elite jute variety widely cultivated in *** transgenic hairy root system for jute was verified by subcellular localization and bimolecular fluorescence complementation(BiFC)*** CHLOROPLASTOS ALTERADOS 1(CcCLA1)gene,which is involved in the development of chloroplasts,was targeted for editing at two sites in Meifeng *** on this hairy root transformation,the gRNA scaffold was placed under the control of cotton ubiquitin GhU6.7 and-GhU6.9 promoters,respectively,to assess the efficiency of gene *** indicated the 50.0%(GhU6.7)and 38.5%(GhU6.9)editing events in the target 2 alleles(gRNA2),but no mutation was detected in the target 1 allele(gRNA1)in transgenic-positive hairy ***1 gene editing at gRNA2 under the control of GhU6.7 in Meifeng 4 was also carried out by Agrobacterium tumefaciens-mediated *** CcCLA1 mutants were albinic,with a gene editing efficiency of 5.3%.These findings confirm that the CRISPR/Cas9 system,incorporating promoter GhU6.7,can be used as a gene editing tool for jute.

关键词： Jute Agrobacterium-mediated transformation Genome editing Hairy root system

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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 ***,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 ***,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 *** 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)*** treatments were arranged in a randomized complete block design and repeated all treatments in three *** 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 *** 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 *** all treatment combinations,treatment T_(6)was found superior to others based on microbial activities,soil fertility,and *** 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 *** 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

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Optimizing nitrogen management in the food system for sustainable development: a case study of Quzhou County

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Frontiers of agricultural Science and Engineering 2024年第1期11卷 113-121页

作者： Fanlei MENG Menru WANG Yong HOU Lin MA Wenqi MA Xuejun LIU Fusuo ZHANG Wen XU College of Resources and Environmental Sciences National Academy of Agriculture Green DevelopmentState Key Laboratory of Nutrient Use and ManagementNational Observation and Research Station of Agriculture Green Development(QuzhouHebei)China Agricultural UniversityBeijing 100193China Water Systems and Global Change Group Wageningen University&Research6700 AA Wageningenthe Netherlands Environmental Systems Analysis Group Wageningen University&Research6708 PB Wageningenthe Netherlands Key Laboratory of agricultural Water Resources Hebei Key Laboratory of Soil EcologyCenter for Agricultural Resources ResearchInstitute of Genetic and Developmental BiologyChinese Academy of SciencesShijiazhuang 050021China College of Resources and Environment Science Hebei Agricultural UniversityBaoding 071001China

Nitrogen(N) is an essential nutrient for food production. The rapid increase in population requires high inputs of N to meet the growing food demand. If not managed well, the substantial loss of N from the food system has multiple impacts on grain yield, air and water pollution, and the economic benefits of agricultural. Multi-objective(food security, environmental sustainability and economic sustainability) synergistic consideration of N management in the food system is still lacking. This study employed strategies for optimizing N management in the food system, using Quzhou County as a typical example on the North China Plain. Firstly, a food chain approach was adopted to understand drivers and reasons behind N losses from the food ***, a top-down approach was used to define multi-objective N management, taking into consideration food security, environmental sustainability and economic sustainability. Multi-objective N management aims to reduce N losses to the environment and increase N use efficiencies,while simultaneously increasing yields and economic benefits. Thirdly, 3R(reduce-retain-recycle) N management strategies were identified for specific crops and animals through a bottom-up approach and then analyzed the potential of these strategies to achieve the multi-objectives. Finally, there is a discussion of how to engage different stakeholders to promote the technologies implementation. This study provides new insights into the synergistic achievement of multi-objective N management in the food system and the development of environmentally-friendly agriculture.

关键词： Agriculture green development food system multi-objective nitrogen management

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experimental research on the microclimate in the naturally ventilated multi-span greenhouse

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International Journal of agricultural and Biological Engineering 2024年第3期17卷 68-74页

作者： Zhenjun Gao Wenyang Li Wei Li Xiaoming Ding College of Mechanical and Power Engineering China Three Gorges UniversityYichang 443002HubeiChina Guangdong Modern agricultural Equipment Research Institute Guangzhou 510630China Key Laboratory of agricultural Facilities Structural Engineering Academy of Agricultural Planning and EngineeringMinistry of Agriculture and Rural AffairsBeijing 100125China

In order to further understand the changing laws of environmental factors in large multi-span greenhouses under natural ventilation conditions and the internal relations between various environmental factors,and ultimately improve the precision of microclimate regulation of large multi-span *** the multi-span greenhouse with a small spire structure in the Demonstration Base of Guangdong agricultural Technology Extension station as the research object,under the condition of natural ventilation with butterfly-shaped windows,the changes in temperature,humidity,wind speed and solar light intensity of different monitoring planes in the greenhouse were *** analyzing the monitoring data,it was found that:1)The temperature gradient in the vertical direction in the large multi-span greenhouse is more obvious than that in the small greenhouse,and the highest average temperature difference monitored can reach 7.9℃.The velocity field in the multispan greenhouse is always maintained within the range of 0.3-0.4 m/s,and the ambient wind speed has no effect on the airflow speed in the *** humidity and speed in the multi-span greenhouse show good uniformity.2)In a large multi-span greenhouse,the secondary radiation generated by the internal shading has less impact on the area near the ground,which can effectively reduce the ground temperature.3)Under the conditions studied in this research,the temperature and humidity in the greenhouse follow the external environment as well,showing that the greenhouse design is reasonable,and the air renewal and heat exchange inside and outside the greenhouse are good during natural ventilation.

关键词： natural ventilation multi-span greenhouse environmental factors microclimate

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Distribution of antibiotic resistant bacteria in different soil types following manure application

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Soil Ecology Letters 2024年第2期6卷 137-148页

作者： Tingting Song Muhammad Fahad Sardar Xuerong Wang Binxu Li Zhuoyi Zhang Dimei Wu Changxiong Zhu Hongna Li College of Engineering Jilin Normal UniversitySiping136000China Institute of Environment and Sustainable Development in Agriculture Chinese Academy of Agricultural SciencesBeijing100081China Beijing General station of Animal Husbandry Beijing100081China College of Environment Science and Engineering Hebei University of Science and TechnologyShijiazhuang050000China

ARB was investigated in different soil types following manure ***-manure induced more resistance of soil indigenous microbes in fluvo-aquic ***,Dyella,Ralstonia,and Bacillus were the key different *** control is an ef... 详细信息

关键词： chlortetracycline-resistant bacteria(CRB) soil types manure application fluvo-aquic soil LEfSe analysis

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A single degenerated primer significantly improves COX1 barcoding performance in soil nematode community profiling

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Soil Ecology Letters 2024年第2期6卷 31-44页

作者： Yincai Ren Dorota L. Porazinska Quanhui Ma Shuhan Liu Hongmei Li Xue Qing Department of Plant Pathology Nanjing Agricultural UniversityNanjing210095China Department of Entomology and Nematology University of FloridaGainesvilleFL32611USA Institute of Grassland Science Key Laboratory of Vegetation Ecology of the Ministry of EducationJilin Songnen Grassland Ecosystem National Observation and Research StationNortheast Normal UniversityChangchun130024China

A new COX1 primer for soil nematode metabarcoding was designed,and this primer outperforms other commonly used COX1 primer pairs in species recovery and quantity of PCR products.•The lack of reference database is the main reason that led to the low species recovery in COX1 metabarcoding.•We expanded current NCBI database by adding 51 newly generated COX1 reference *** nematodes play important roles in soil ecosystems and often serve as bioindicators of soil *** identification of soil nematodes is often difficult due to their limited diagnostic characters and high phenotypic *** barcoding and metabarcoding techniques are promising but lack universal primers,especially for mitochondrial COX1 *** this study a degenerated COX1 forward primer COIFGED was *** primer pair(COIFGED/JB5GED)outperforms other four commonly used COX1 primer pairs in species recovery and quantity of polymerase chain reaction(PCR)*** metabarcoding analysis,the reads obtained from the new primer pair had the highest sequencing saturation threshold and amplicon sequence variant(ASV)diversity in comparison to other COX1 as well as 18S rRNA *** annotation of ASVs suggested the new primer pair initially recovered 9 and 6 out of 25 genera from mock communities,respectively,outperformed other COX1 primers,but underperformed the widely used 18S NF1/18Sr2b primers(16 out of 25 genera).By supplementing the COX1 database with our reference sequences,we recovered an additional 6 mock community species bringing the tally closer to that obtained with 18S *** summary,our newly designed COX1 primers significantly improved species recovery and thus can be supplementary or alternative to the conventional 18S metabarcoding.

关键词： degenerated primers DNA metabarcoding mitochondrial cytochrome oxidase c subunit I gene phylogeny ribosomal RNA gene soil nematodes

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Floristic Diversity and Conservation Status of Guineo-Congolese Species in Southeastern Cameroon: The Case of the Gari-Gombo Communal Forest

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Open Journal of Forestry 2024年第1期14卷 87-97页

作者： Boris Nyeck Valery Noiha Noumi Nicole Maffo Maffo Victor Awe Djongmo Cedric Djomo Chimi Louis Zapfack Department of Biological Sciences Faculty of Sciences University of Ngaoundéré Ngaoundéré Cameroon agricultural Research Institute for Development (IRAD) Minko Agricultural Research Station Meyomessala Cameroon Department of live Sciences Higher Teacher Training College University of Bertoua Bertoua Cameroon Department of Plant Biology and Physiology Faculty of Sciences University of Yaoundé I Yaoundé Cameroon agricultural Research Institute for Development (IRAD) Research Station of Yokadouma Yokadouma Cameroon

The conservation of plant biodiversity has become one of the most important objectives in the sustainable management of Guinean-Congolese ecosystems. However, in the south-east zone of Cameroon, there is a lack of rigor in the management of these forests, which can result in the loss of species of high conservation value. The study was carried out in communal forests in the south-east zone of Cameroon. Its aim was to carry out a floristic inventory and then compare the list of species with the IUCN catalog. Twenty-four plots, each with a surface area of 0.2 ha, were set up in the Gari-Gombo communal forest. All timbers with a DBH ≥ 5 cm were systematically counted. A total of 176 species, belonging to 144 genera and 45 families, were surveyed. Fabaceae (42.08%), Malvaceae (39%), Euphorbiaceae (24.64%), Moraceae (20.92%), Apocynaceae (18.64%), Cecropiaceae (16.60%), Ulmaceae (14.76%), Meliaceae (14.61%), Violaceae (14.08%), Combretaceae (12.67%), Theobroma cacao (21.17%), Baphia leptobotrys (18.06%), Rinorea sp. (14.09%), Musanga cecropioides (12.18%), Terminalia superba (10.32%), Neosloetiopsis kamerunensis (10.14%), Celtis zenkeri (8.29%) and Alstonia boonei (7.77%) were the most important taxa. Nearly 90% of the species in this forest are Guinean species, with a dominance of Guinean-Congolese species (66%). Fourteen (14) threatened species have been identified in the FCGG. This study, which highlights the rich biodiversity of communal forests, is important for guiding biodiversity conservation policies in ecosystems used for production.

关键词： Communal Forest Conservation Status Cameroon Floristic Diversity

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