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Priority effects of forbs arriving early:the role of root interaction and asymmetric competition

Ecological Processes 2024年第1期13卷 53-65页

作者： Xiaohong Yan Xiliang Li Ke Jin institute of Grassland Research Chinese Academy of Agricultural Sciences

Background The priority effect of plant arrival is a key driver of community assembly and ecosystem succession during the restoration of degraded plant communities. However, the significance of the arrival order of different plant functional groups and their interactions with community assemblies remains unclear. Using a phytotron experiment with three fully crossed factors, we investigated the underlying mechanisms of priority effects and their relationships with the biomass and biodiversity effects in mixed plant communities by manipulating the order of arrival of species, isolation of roots, and removal of specific *** The results showed that the strength and direction of priority effects were influenced by arrival order, root interactions, asymmetric competition among species, and their interactions. The identities of early and late-sown species also determined the magnitude of priority effects. The priority effects were stronger in grass-first(24.76%) and legume-first communities(24.48%) than in forb-first communities. The pot biomass of the different priority treatments was highest in grass-first(5.85 g), followed by legume-first(3.94 g) and forb-first(2.48 g). The order of arrival in the mixture significantly affected the net biodiversity effects(P biomass when forbs were sown first, whereas the species grown later had fewer costs with an increased overall net benefit for the resulting *** Our results emphasize that root interactions and asymmetric competition are vital determinants of order-specific priority effects in community assemblies. In addition, the importance of the priority effect of forbs sown first is related to community assembly, which may be a key determinant in successfully establishing a highly diverse community in the early stages of restoration. Species with weak competition should be considered in the early stage of community ass

关键词： Community assembly Order of arrival Overyielding Plant functional group Root isolation

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Impacts of agri-food e-commerce on traditional wholesale industry:Evidence from China

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Journal of Integrative Agriculture 2024年第4期23卷 1409-1428页

作者： Ruyi Yang Jifang Liu Shanshan Cao Wei Sun Fantao Kong institute of agricultural Information Chinese Academy of Agricultural SciencesBeijing 100081China institute of Special Animal and Plant sciences Chinese Academy of Agricultural SciencesChangchun 130112China

Rapidly expanding studies investigate the effects of e-commerce on company operations in the retail ***,the interaction between agri-food e-commerce(AEC)and the traditional agri-food wholesale industry(AWI)has not received enough attention in the existing *** on the provincial panel data from 2013 to 2020 in China,this paper examines the effect of AEC on AWI,comprising three dimensions:digitalization(DIGITAL),agrifood e-commerce infrastructure and supporting services(AECI),and agri-food e-commerce economy(AECE).First,AWI and AEC are measured using an entropy-based combination of *** results indicate that for China as a whole,AWI has remained practically unchanged,whereas AEC exhibits a significant rising ***,the findings of the fixed-effect regression reveal that DIGITAL and AECE tend to raise AWI,whereas AECI negatively affects ***,threshold regression results indicate that AECI tends to diminish AWI with three-stage inhibitory intensity,which manifests as a first increase and then a drop in the inhibition *** results suggest that with the introduction of e-commerce for agricultural product circulation,digital development will have catfish effects that tend to stimulate the vitality of the conventional wholesale industry and promote technical ***,the traditional wholesale industry benefits financially from e-commerce even while it diverts part of the traditional wholesale circulation for agricultural products.

关键词： agri-food e-commerce traditional wholesale industry panel threshold model dual-channel circulation

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Genetic dissection and origin of pleiotropic loci underlying multilevel fiber quality traits in upland cotton(Gossypium hirsutum L.)

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Journal of Integrative Agriculture 2024年第10期23卷 3250-3263页

作者： Hongge Li Shurong Tang Zhen Peng Guoyong Fu Yinhua Jia Shoujun Wei Baojun Chen Muhammad Shahid Iqbal Shoupu He Xiongming Du Zhengzhou Research Base State Key Laboratory of Cotton Bio-breeding and Integrated Utilization/School of Agricultural SciencesZhengzhou UniversityZhengzhou 450001China State Key Laboratory of Cotton bio-breeding and Integrated Utilization/institute of Cotton Research Chinese Academy of Agricultural SciencesAnyang 455000China

Cotton fiber quality is a persistent concern that determines planting benefits and the quality of finished textile ***,the limitations of measurement instruments have hindered the accurate evaluation of some important fiber characteristics such as fiber maturity,fineness,and neps,which in turn has impeded the genetic improvement and industrial utilization of cotton ***,12 single fiber quality traits were measured using Advanced Fiber Information System(AFIS)equipment among 383 accessions of upland cotton(Gossypium hirsutum L.).In addition,eight conventional fiber quality traits were assessed by the High Volume Instrument(HVI)***-wide association study(GWAS),linkage disequilibrium(LD)block genotyping and functional identification were conducted sequentially to uncover the associated elite loci and candidate genes of fiber quality *** a result,the previously reported pleiotropic locus FL_D11 regulating fiber length-related traits was identified in this *** importantly,three novel pleiotropic loci(FM_A03,FF_A05,and FN_A07)regulating fiber maturity,fineness and neps,respectively,were detected based on AFIS *** highly promising candidate genes were screened out by integrating RNA-seq and qRT-PCR analyses,including the reported GhKRP6 for fiber length,the newly identified GhMAP8 for maturity and GhDFR for *** origin and evolutionary analysis of pleiotropic loci indicated that the selection pressure on FL_D11,FM_A03 and FF_A05 increased as the breeding period approached the present and the origins of FM_A03 and FF_A05 were traced back to cotton *** findings reveal the genetic basis underlying fiber quality and provide insight into the genetic improvement and textile utilization of fiber in ***.

关键词： upland cotton single fiber quality pleiotropic loci candidate genes locus origin

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Promoting grain production through high-standard farmland construction:Evidence in China

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Journal of Integrative Agriculture 2024年第1期23卷 324-335页

作者： Shuai Hao Guogang Wang Yantao Yang Sicheng Zhao Shengnan Huang Liping Liu Huanhuan Zhang institute of agricultural Economics and Development Chinese Academy of Agricultural SciencesBeijing 100081China

Food security is a strategic priority for a country’s economic *** China,high-standard farmland construction(HSFC)is an important initiative to stabilize grain production and increase grain production *** on panel data from 31 sample provinces,autonomous regions,and municipalities in China from 2005–2017,this study explored the impact of HSFC on grain yield using the difference-in-differences(DID)*** results showed that HSFC significantly increased total grain production,which is robust to various *** increased grain yield through three potential ***,it could increase the grain replanting ***,it could effectively reduce yield loss due to droughts and ***,HSFC could strengthen the cultivated land by renovating the low-and medium-yielding *** analysis found that the HSFC farmland showed a significant increase in grain yield only in the main grain-producing areas and balanced *** addition,HSFC significantly increased the yields of rice,wheat,and maize while leading to a reduction in soybean *** findings suggest the government should continue to promote HSFC,improve construction standards,and strictly control the“non-agriculturalization”and“non-coordination”of farmland to increase grain production *** the same time,market mechanisms should be used to incentivize soybean farming,improve returns and stabilize soybean yields.

关键词： high-standard farmland farmland construction food security food production area difference-in-differences

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Trichoderma viride F7 improves peanut performances while remediating cadmium-contaminated soil with microplastics

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Pedosphere 2024年第5期34卷 971-980页

作者： Xin SONG Jianpeng JIN Hongliang YIN Tingjuan WANG Haiying ZONG Fangli WANG Jun LIU Xiaoli HUANG Bin WANG Chao CHAI Zhi LI Dongsheng LIU Xuexia WANG Ningning SONG School of Resources and Environment Qingdao Agricultural University Central Laboratory Qingdao Agricultural University institute of Soil Fertilizer and agricultural Water Saving Xinjiang Academy of Agricultural Sciences institute of Plant Nutrition and Resources Beijing Agricultural Forestry Academy Sciences

Microplastics(MPs) and cadmium(Cd) in soil have serious negative impacts on plant growth. As a bioremediator, Trichoderma viride may modulate the impacts of MPs and/or Cd on plant growth and heavy metal uptake. In this study, T. viride F7 was used to treat Cd-contaminated soil with and without the presence of polylactic acid MPs to investigate its effects on peanut growth, Cd uptake efficiency, and soil properties. Results showed that F7 increased soil pH,dissolved organic carbon, cation exchange capacity, microbial biomass nitrogen, and microbial biomass carbon, which resulted in increases of 2.10%–19.83% in peanut biomass and mitigated the negative effects of MPs and Cd on peanut growth. Trichoderma viride F7 reduced the soil bioavailable Cd and plant Cd concentrations by 16.68%–34.20% and 5.37%–25.84%, respectively. Regression path analysis showed that F7 could improve peanut performances by altering soil properties and reducing peanut Cd concentrations in MP-Cd-contaminated soil. Soil fungal community analysis indicated that the microbial community was altered via F7 inoculation, which antagonized Fusarium and promoted peanut growth. This study reveals the mechanisms of F7 in mitigating Cd contamination in the soil with the presence of MPs, which provides new ideas for managing MP-heavy metal-contaminated soil and improving soil health.

关键词： bioremediation compound pollution emerging pollutant heavy metal polyethylene soil health

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Opportunities and Challenges in Advancing Plant Research with Single-cell Omics

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Genomics, Proteomics & bioinformatics 2024年第2期22卷 13-26页

作者： Mohammad Saidur Rhaman Muhammad Ali Wenxiu Ye Bosheng Li Peking University institute of Advanced agricultural sciences Shandong Laboratory of Advanced Agricultural Sciences in WeifangWeifang 261325China

Plants possess diverse cell types and intricate regulatory mechanisms to adapt to the ever-changing environment of *** strategies have been employed to study cell types and their developmental progressions,including single-cell sequencing methods which provide high-dimensional catalogs to address biological *** recent years,single-cell sequencing technologies in transcriptomics,epigenomics,proteomics,metabolomics,and spatial transcriptomics have been increasingly used in plant science to reveal intricate biological relationships at the single-cell ***,the application of single-cell technologies to plants is more limited due to the challenges posed by cell *** review outlines the advancements in single-cell omics technologies,their implications in plant systems,future research applications,and the challenges of single-cell omics in plant systems.

关键词： Multi-omics Single-cell transcriptomics Spatial transcriptomics Single-cell epigenomics Single-cell proteomics

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A novel pathogen Fusarium cuneirostrum causing common bean(Phaseolus vulgaris)root rot in China

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Journal of Integrative Agriculture 2024年第1期23卷 166-176页

作者： Dong Deng Wenqi Wu Canxing Duan Suli Sun Zhendong Zhu institute of Crop sciences Chinese Academy of Agricultural SciencesBeijing 100081China

Several fungal pathogens cause root rot of common bean,among which Fusarium *** the most common pathogens causing Fusarium root rot(FRR)*** has been becoming an increasingly severe disease of common bean in China,but the species of Fusarium *** remained ***,this study was performed to identify the pathogen causing common bean root rot in Liangcheng County,Inner Mongolia,*** Fusarium-like isolates were obtained after pathogen isolation and *** pathogenicity test indicated that eight isolates caused severe disease symptoms on common bean,while 11 other isolates were not *** eight pathogenic isolates,FCL1–FCL8,were identified as Fusarium cuneirostrum by morphological characterization and phylogenetic analysis using partial sequences of EF-1α,ITS,28S,and IGS *** range test showed that the representative *** isolate FCL3 was also pathogenic to mung bean,while not pathogenic to adzuki bean,chickpea,cowpea,faba bean,pea,and ***,50 common bean and 50 mung bean cultivars were screened for resistance to FRR,and seven highly resistant or resistant cultivars of common bean were identified,while no resistant cultivars of mung bean were *** study revealed that *** was one of common bean FRR pathogens in Inner Mongolia and it could induce mung bean root rot as *** our knowledge,this is the first report of *** causing FRR of common bean in China.

关键词： Fusarium cuneirostrum fusarium root rot pathogenicity molecular phylogenetic analysis Phaseolus vulgaris

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Nutrition impacts of non-solid cooking fuel adoption on under-five children in developing countries

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Journal of Integrative Agriculture 2024年第2期23卷 397-413页

作者： Yalin Tang Yuhe Guo Gang Xie Chengfang Liu China Center for agricultural Policy School of Advanced Agricultural SciencesPeking UniversityBeijing 100871China agricultural Information institute Chinese Academy of Agricultural SciencesBeijing 100081China

This paper examines the nutrition impacts of using non-solid cooking fuel on under-five children in developing *** draw on data from more than 1.12 million children in 62 developing countries from the Demographic and Health Surveys(DHS).Results from both fixed effects(FE)and instrumental variable(IV)estimates show that using non-solid cooking fuel significantly improves the nutrition outcomes of under-five *** with their peers from households mainly using solid fuel,children from households mainly using non-solid fuel exhibit a lower probability of experiencing stunting(by 5.9 percentage points)and being underweight(by 1.2 percentage points).Our further investigation provides evidence for several underlying mechanisms,such as improved indoor air quality,induced reduction in children’s respiratory symptoms,benefits on maternal health,and reduction in maternal time spent on fuel collection or *** analyses suggest that the nutrition benefits of using non-solid cooking fuel are more prominent among boys,children above three years old,and those from households of lower socioeconomic status,rural areas,and Southeast Asia.

关键词： non-solid cooking fuel nutrition benefits under-five children developing countries

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Innovations in functional genomics and molecular breeding of pea:exploring advances and opportunities

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abioTECH 2024年第1期5卷 71-93页

作者： Baizhi Chen Yan Shi Yuchen Sun Lu Lu Luyao Wang Zijian Liu Shifeng Cheng agricultural Genomics institute at Shenzhen(AGIS) Chinese Academy of Agricultural Sciences(CAAS)ShenzhenChina

The garden pea(Pisum sativum L.)is a significant cool-season legume,serving as crucial food sources,animal feed,and industrial raw *** advancement of functional genomics over the past two decades has provided substantial theoretical foundations and progress to pea ***,the release of the pea reference genome has enhanced our understanding of plant architecture,symbiotic nitrogen fixation(SNF),flowering time,floral organ development,seed development,and stress ***,a considerable gap remains between pea functional genomics and molecular *** review summarizes the current advancements in pea functional genomics and breeding while highlighting the future challenges in pea molecular breeding.

关键词： Pea Genome study Agronomic traits Breeding

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Resilience effects for household food expenditure and dietary diversity in rural western China

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Journal of Integrative Agriculture 2024年第2期23卷 384-396页

作者： Xiao Han Kaiyu Lyu Fengying Nie Yuquan Chen institute of agricultural Economics and Development Chinese Academy of Agricultural SciencesBeijing 100081China agricultural Information institute Chinese Academy of Agricultural SciencesBeijing 100081China Academy of Global Food Economics and Policy China Agricultural UniversityBeijing 100083China

A more resilient livelihood is increasingly recognized as an efficient way to improve vulnerable households’food security and optimize their dietary *** study quantifies rural household resilience in western China,identifies the three pillars(absorptive capacity,adaptive capacity,and transformative capacity)contribution to resilience,and then establishes the estimated Resilience Capacity Index(RCI)linked with food security and dietary diversity supported by the multiple indicator multiple cause(MIMIC)*** show that,despite geographical heterogeneity,the RCI consistently increased from 2015 to *** with a higher RCI inheriting better capacity to deal with risk and shocks are significantly and positively correlated with increasing food expenditure and diversifying food *** can be because resilient households will allocate more money to food expenditure instead of saving for livelihood ***,policymakers can provide more incentives for rural households to adopt more dynamic and effective risk management ***,in turn,could yield positive spillover effects by preventing human capital loss associated with dietary-related chronic diseases and mortality.

关键词： resilience food expenditure dietary diversity China risk management

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