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Distribution and accumulation of zinc and nitrogen in wheat grain pearling fractions in response to foliar zinc and soil nitrogen applications

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Journal of Integrative Agriculture 2021年第12期20卷 3277-3288页

作者： ZHANG Pan-pan CHEN Yu-lu WANG Chen-yang MA Geng LU Jun-jie LIU Jing-bao GUO Tian-cai State Key Laboratory of wheat and Maize Crop Science Henan Agricultural UniversityZhengzhou 450002P.R.China Cereal Institute Henan Academy of Agricultural SciencesZhengzhou 450002P.R.China College of Agronomy Henan Agricultural UniversityZhengzhou 450002P.R.China Luoyang Academy of Agriculture and Forestry Sciences Luoyang 471023P.R.China

Increasing zinc(Zn)concentration in wheat grain is important to minimize human dietary Zn *** study aimed to investigate the effect of foliar Zn and soil nitrogen(N)applications on the accumulation and distribution of N and Zn in grain pearling fractions,N remobilization,and the relationships between nutrient concentration in the vegetative tissues and grain or its fractions in two cropping years in the North china *** results showed a progressive decrease in N and Zn concentrations from the outer to the inner parts of grain,with most of the accumulation in the core *** Zn application significantly increased N concentration in the pericarp,and soil N application increased N concentration in each grain *** treatments significantly increased core endosperm Zn *** Zn had no effect on grain N and Zn *** N application made N concentrated in the aleurone,promoted Zn translocation to the core endosperm and also increased N remobilization and its efficiency from the shoot to the grain,but no improved contribution to grain was found.N concentration in grain and its fractions were positively correlated with N in vegetative organs at anthesis and maturity,while positive correlations were obtained between N concentration in the pericarp and progressive central area of the endosperm and Zn concentration in the core ***,foliar Zn and soil N applications effectively increased yield and N and Zn concentrations in the wheat grain,particularly in the endosperm,and could be promising strategies to address Zn deficiency.

关键词： foliar Zn application soil N application winter wheat nutrient distribution N remobilization

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Physiological mechanisms underlying reduced photosynthesis in wheat leaves grown in the field under conditions of nitrogen and water deficiency

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The Crop Journal 2023年第2期11卷 638-650页

作者： Juan Kang Yingying Chu Geng Ma Yanfei Zhang Xiaoyan Zhang Mao Wang Hongfang Lu Lifang Wang Guozhang Kang Dongyun Ma Yingxin Xie Chenyang Wang College of Agronomy&State Key Laboratory of wheat and Maize Crop Science Henan Agricultural UniversityZhengzhou 450046HenanChina National Engineering Research Center for wheat Henan Agricultural UniversityZhengzhou 450046HenanChina

Reduced photosynthesis results directly from nitrogen or water deficiency in wheat plants,and leads to a decrease in grain *** this study,by measuring the effects of water and N deficiencies,both individually and combined,we characterized the responses of wheat(Triticum aestivum *** 49-198)plants to these two deficiencies using physiological measurements and comparative *** decreases in grain yield and leaf photosynthetic performance were observed in all deficiency conditions,and 106 photosynthetic proteins that showed responses were *** deficiency induced the least change in photosynthetic proteins,and similar changes in most of these proteins were also observed for the combined nitrogen and water *** deficiency induced the largest change in photosynthetic proteins and resulted in the lowest 1000-kernel *** decreases in photosynthesis in both the water-deficiency and combined N and water deficiency groups were reflected mainly in an imbalanced ATP/NADPH ratio associated with the light reaction,which influences carbon metabolism in the Calvin *** was respectively stimulated or inhibited by N or water deficiency,while suppression of photorespiratory flux and activation of nitrogen recycling were observed in the combined N and water deficiency *** of photosynthetic proteins between experimental sites suggested that precipitation affected linear electron flow in the photoreaction,and thus photosynthetic *** results provide a baseline for future studies of the roles of these photosynthetic proteins in the response to N or water deficiency and their effect on 1000-kernel weight.

关键词： wheat Photosynthesis Nitrogen Water Proteomics

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Major Gene Identification and Quantitative Trait Locus Mapping for YieldRelated Traits in Upland Cotton(Gossypium hirsutum L.)

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Journal of Integrative Agriculture 2014年第2期13卷 299-309页

作者： XIA Zhe ZHANG Xin LIU Yang-yang JIA Zi-fang ZHAO Hai-hong LI Cheng-qi WANG Qing-lian College of Life Sciences Henan Normal University Key Discipline Open Lab on Crop Molecular Breeding of henan Institute of Higher Learning/Cotton Research Institute Henan Institute of Science and Technology

Segregation analysis of the mixed genetic model of major gene plus polygene was used to identify the major genes for cotton yield-related traits using six generations P1, P2, F1, B1, B2, and F2 generated from the cross of Baimian 1 x TM-1. In addition to boll size and seed index, the major genes for the other five traits were detected： one each for seed yield, lint percentage, boll number, lint index; and two for lint yield. Quantitative trait locus/loci （QTL） mapping was performed in the F2 and F2：3 populations of above cross through molecular marker technology, and a total of 50 QTL （26 suggestive and 24 significant） for yield-related traits were detected. Four common QTL were discovered： qLP-3b（F2）/qLP-3（F2：3） and qLP-19b （F2）/qLP-19（F2：3） for lint percentage, qBN-17（F2）/qBN-17（F2：3） for boll number, and qBS-26b（F2）/qBS-26（F2：3） for boll size. Especially, qLP- 3b（Fz）/qLP-3（F2：3）, not only had LOD scores 〉3 but also exceeded the permutation threshold （5.13 and 5.29, respectively）, correspondingly explaining 23.47 and 29.55% of phenotypic variation. This QTL should be considered preferentially in marker assisted selection （MAS）. Segregation analysis and QTL mapping could mutually complement and verify, which provides a theoretical basis for genetic improvement of cotton yield-related traits by using major genes （QTL）.

关键词： major gene segregation analysis QTL mapping yield-related traits upland cotton

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The AaCBF4-AaBAM3.1 module enhances freezing tolerance of kiwifruit (Actinidia arguta)

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Horticulture Research 2021年第1期8卷 1301-1315页

作者： Shihang Sun Chungen Hu Xiujuan Qi Jinyong Chen Yunpeng Zhong Abid Muhammad Miaomiao Lin Jinbao Fang Key Laboratory for Fruit Tree Growth Development and Quality ControlZhengzhou Fruit Research InstituteChinese Academy of Agricultural SciencesZhengzhou 450009China Key Laboratory of Horticultural Plant Biology(Ministry of Education) College of Horticulture and Forestry ScienceHuazhong Agricultural UniversityWuhan 430070China

Beta-amylase(BAM)plays an important role in plant resistance to cold ***,the specific role of the BAM gene in freezing tolerance is poorly *** this study,we demonstrated that a cold-responsive gene module was involved in the freezing tolerance of *** this module,the expression of AaBAM3.1,which encodes a functional protein,was induced by cold ***3.1-overexpressing kiwifruit lines showed increased freezing tolerance,and the heterologous overexpression of AaBAM3.1 in Arabidopsis thaliana resulted in a similar *** results of promoter GUS activity and cis-element analyses predicted AaCBF4 to be an upstream transcription factor that could regulate AaBAM3.1 *** investigation of protein-DNA interactions by using yeast one-hybrid,GUS coexpression,and dual luciferase reporter assays confirmed that AaCBF4 directly regulated AaBAM3.1 *** addition,the expression of both AaBAM3.1 and AaCBF4 in kiwifruit responded positively to cold ***,we conclude that the AaCBF-AaBAM module is involved in the positive regulation of the freezing tolerance of kiwifruit.

关键词： expression freezing fir

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