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unique genes carried by abundant species enhance CH_(4) emissions during the growing season at the Tibetan Plateau

Soil Ecology Letters 2024年第2期6卷 83-95页

作者： Yue Liang Liyuan He Jieying Wang Yanfang Liu Wenying Wang Chengjie Ren Jun Wang Yaoxin Guo Ninglian Wang Fazhu Zhao Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity Northwest UniversityXi’an710127China College of Urban and Environmental Sciences Northwest UniversityXi’an710127China Department of Biology San Diego State UniversitySan DiegoCA92182USA Key Laboratory of Biodiversity Formation Mechanism and Comprehensive Utilization in Qinghai-Tibet Plateau School of Life SciencesQinghai Normal UniversityXining810008China College of Agronomy Northwest A&F UniversityYangling712100China The College of Life Sciences Northwest UniversityXi’an710072China Carbon Neutrality College (Yulin) Northwest UniversityXi’an710127China

CH_(4) emission rates followed an increased pattern during the growing season at Tibetan Plateau.•unique genes carried by abundant species were positively correlated with CH_(4) emission rates.•Climate factors influenced CH_(4) emission rates by regulating microbial community and their *** play pivotal roles in soil methane(CH_(4))emissions and their functional genes are origins of a key mechanism for soil ***,understanding of the roles of specific genes(e.g.,unique or shared genes carried by species)underlying CH_(4)-cycling remains ***,we measured CH_(4) emission rates and investigated variations in microbial community and the abundance of genes carried by species during the growing season in alpine meadow on the Tibetan *** discovered that CH_(4) emission rates increased from 394.4,745.9,and 1092.7µg CH4 m−2 h−1,in April,June,and August,respectively,and had a positive correlation with unique genes carried by abundant species during the growing ***,we found that unique genes carried by abundant species involved in methanogenesis processes have a higher abundance than methanotrophic *** analysis indicated that climate factors(i.e.,mean monthly temperature(MMT)and mean monthly precipitation(MMP))influenced microbial community and their functional genes,and therefore affected the CH_(4) emission ***,the present study provides a novel insight into the variation of soil CH4 emissions from a functional gene perspective,highlighting the important roles of unique genes carried by abundant species in CH4 emissions in the Tibetan Plateau under seasonal variation.

关键词： soil CH_(4) emissions unique genes abundant species CH_(4)-cycling growing season

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Functional characterization of the unique genes encoding secreted proteins in Fusarium graminearum

Functional characterization of the unique genes encoding sec...

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中国植物病理学会2015年学术年会

作者： ZHANG Shi-jie ZHANG Qiang YIN Tao JIANG Cong LIU Hui-quan WANG Chen-fang XU Jin-Rong Purdue-NWAFU Joint Research Center and State Key Laboratory of Crop Stress Biology for Arid Areas College of Plant ProtectionNorthwest A&F University

To invade and colonize their host plants,plant pathogenic fungi diverse a serious of effector proteins to suppress plant immunity *** fungal effectors are secreted,cysteine-rich proteins,and maybe have a role in *** almost all of organisms,there are many unique genes that do not have homologs in *** the genomes of many species have been sequenced,systematic characterization of these genes has not been *** search for virulence effector genes of Fusarium graminearum,a destructive disease of wheat and barley worldwide,we carried out a largescale targeted deletion of genes for 53 putative secreted proteins that did not match any known protein in the database of National Center for Biotechnology Information（NCBI）.Thus,they were considered as unique *** mutants of all these genes were generated and assayed for phenotypic variation,and most of them did not affect growth,conidiation,sexual reproduction,DON production or pathogenicity of ***,four secreted unique proteins which are important for plant infection（SUP1/2/4） were *** genes are required for both wheat and corn stalk infection,while the sup2 and sup4 deletion mutants are only reduced in virulence in wheat host but not in *** PVX-based functional assays,all of the four genes could block programmed cell death by mouse pro-apoptosis protein Bax induced in Nicotiana benthamiana and ***,SUPl and SUP4 had a steady rise along with the senility of vegetative hypha and displayed a drastic up-regulation during the early stages of infection（72h） *** addition,live-cell imaging suggested that fluorescently labeled SUP4 was translocated into extra-invasive-hyphal membrane during *** preliminary results indicated that the SUP2 and SUP4 genes were secreted pathogenicity protein commonly required for infection and may functioned as effector protein to participate in the interaction with host plant.

关键词： effectors unique genes pathogenicity

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