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Advances in deciphering salt tolerance mechanism in maize

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The Crop Journal 2023年第4期11卷 1001-1010页

作者： Yibo Cao Xueyan Zhou Huifang Song Ming Zhang caifu jiang Key Laboratory of Forest Silviculture and Conservation of the Ministry of Education College of ForestryBeijing Forestry UniversityBeijing 100083China State Key Laboratory of Plant Environmental Resilience College of Biological SciencesChina Agricultural UniversityBeijing 100094China

Maize(Zea mays L.)is a global cereal crop whose demand is projected to double by *** with worsening of farmland salinization,salt stress has become a major environmental threat to the sustainability of maize production ***,there is an urgent need to decipher salt-tolerant mechanisms and facilitate the breeding of salt-tolerant *** salt tolerance is a complex trait regulated by multiple genes,and maize germplasm varies widely in salt tolerance,efforts have been devoted to the identification and application of quantitative-trait loci(QTL)for salt *** associated with ion regulation,osmotic tolerance,and other aspects of salt tolerance have been discovered using genomewide association studies(GWAS),linkage mapping,and omics-based *** review highlights recent advances in the molecular-level understanding of salt stress response in maize,in particular in(a)the discovery of salt-tolerance QTL,(b)the mechanisms of salt tolerance,(c)the development of salttolerant maize cultivars,and(d)current challenges and future prospects.

关键词： Maize Salt tolerance QTL Ion toxicity Osmotic stress Natural variation Na+transporter

Genetic and molecular exploration of maize environmental stress resilience:Toward sustainable agriculture

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Molecular Plant 2023年第10期16卷 1496-1517页

作者： Zhirui Yang Yibo Cao Yiting Shi Feng Qin caifu jiang Shuhua Yang State Key Laboratory of Plant Environmental Resilience Frontiers Science Center for Molecular Design BreedingCollege of Biological SciencesChina Agricultural UniversityBeijing 100193China

Global climate change exacerbates the effects of environmental stressors,such as drought,flooding,extreme temperatures,salinity,and alkalinity,on crop growth and grain yield,threatening the sustainability of the food ***(Zea mays)is one of the most widely cultivated crops and the most abundant grain crop in production ***,the stability of maize yield is highly dependent on environmental ***,great progress has been made in understanding the molecular mechanisms underlying maize responses to environmental stresses and in developing stress-resilient varieties due to advances in high-throughput sequencing technologies,multi-omics analysis platforms,and automated phenotyping *** this review,we summarize recent advances in dissecting the genetic factors and networks that contribute to maize abiotic stress tolerance through diverse *** also discuss future challenges and opportunities for the development of climate-resilient maize varieties.

关键词： maize abiotic stress drought extreme temperatures salinity resistance

Cytokinin signaling promotes salt tolerance by modulating shoot chloride exclusion in maize

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Molecular Plant 2023年第6期16卷 1031-1047页

作者： Pan Yin Xiaoyan Liang Hanshu Zhao Zhipeng Xu Limei Chen Xiaohong Yang Feng Qin Jingbo Zhang caifu jiang State Key Laboratory of Plant Environmental Resilience College of Biological SciencesChina Agricultural UniversityBejing 100094China State Key Laboratory of Nutrient Use and Management College of Resources and Environmental SciencesNational Academy of Agriculture Green DevelopmentChinaAgriculturalUniversityBeijing100193China Center for Crop Functional Genomics and Molecular Breeding China Agricultural UniversityBejing 100094China Laboratory of Agrobiotechnology and National Maize Improvement Center of China Department of Plant Genetics and BreedingChina Agricultural UniversityBeijing100193China Outstanding Discipline Program for the Universities in Bejing Beijing 100094China

Excessive accumulation of chloride(Cl^(-))in the aboveground tissues under saline conditions is harmful to *** the exclusion of Cl^(-) from shoots promotes salt tolerance in various ***,the underlying molecular mechanisms remain largely *** this study,we demonstrated that a type A response regulator(ZmRR1)modulates Cl^(-) exclusion from shoots and underlies natural variation of salt tolerance in ***1 negatively regulates cytokinin signaling and salt tolerance,likely by interacting with and inhibiting His phosphotransfer(HP)proteins that are key mediators of cytokinin signaling.A naturally occurring non-synonymous SNP variant enhances the interaction between ZmRR1 and ZmHP2,conferring maize plants with a salt-hypersensitive *** found that ZmRR1 undergoes degradation under saline conditions,leading to the release of ZmHP2 from ZmRR1 inhibition,and subsequently ZmHP2-mediated signaling improves salt tolerance primarily by promoting Cl^(-) exclusion from ***,we showed that ZmMATE29 is transcriptionally upregulated by ZmHP2-mediated signaling under highly saline conditions and encodes a tonoplast-located Cl^(-) transporter that promotes Cl^(-) exclusion from shoots by compartmentalizing Cl^(-) into the vacuoles of root cortex ***,our study provides an important mechanistic understanding of the cytokinin signaling-mediated promotion of Cl^(-) exclusion from shoots and salt tolerance and suggests that genetic modification to promote Cl^(-) exclusion from shoots is a promising route for developing salt-tolerant maize.

关键词： cytokinin signaling salt tolerance high-Cl^(-)tolerance Cl^(-)transporter maize

Inhibition of the maize salt overly sensitive pathway by ZmSK3 and ZmSK4

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Journal of Genetics and Genomics 2023年第12期50卷 960-970页

作者： Jianfang Li Xueyan Zhou Yan Wang Shu Song Liang Ma Qian He Minhui Lu Kaina Zhang Yongqing Yang Qian Zhao Weiwei Jin caifu jiang Yan Guo State Key Laboratory of Plant Environmental Resilience College of Biological SciencesChina Agricultural UniversityBeijing 100193China College of Life Sciences Qingdao Agricultural UniversityQingdaoShandong 266109China Center for Crop Functional Genomics and Molecular Breeding China Agricultural UniversityBeijing 100093China National Maize Improvement Center of China China Agricultural UniversityBeijing 100193China

Soil salinity is a worldwide problem that adversely affects plant growth and crop productivity. The salt overly sensitive (SOS) pathway is evolutionarily conserved and essential for plant salt tolerance. In this study, we reveal how the maize shaggy/glycogen synthase kinase 3-like kinases ZmSK3 and ZmSK4, orthologs of brassinosteroid insensitive 2 in Arabidopsis thaliana, regulate the maize SOS pathway. ZmSK3 and ZmSK4 interact with and phosphorylate ZmSOS2, a core member of the maize SOS pathway. The mutants defective in ZmSK3 or ZmSK4 are hyposensitive to salt stress, with higher salt-induced activity of ZmSOS2 than that in the wild type. Furthermore, the Ca^(2+) sensors ZmSOS3 and ZmSOS3-like calcium binding protein 8 (ZmSCaBP8) activate ZmSOS2 to maintain Na^(+)/K^(+) homeostasis under salt stress and may participate in the regulation of ZmSOS2 by ZmSK3 and ZmSK4. These findings discover the regulation of the maize SOS pathway and provide important gene targets for breeding salt-tolerant maize.

关键词： Salt stress Maize SOS pathway ZmSK3 ZmSK4 ZmSCaBP8

Main progress and problems in research on Ordovician hydrocarbon accumulation in the Tarim Basin

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Petroleum Science 2010年第2期7卷 147-163页

作者： Pang Xiongqi Tian Jun Pang Hong Xiang caifu jiang Zhenxue Li Sumei Basin and Reservoir Research Center School of Natural Resources and Information Technology China University ofPetroleum Beijing 102249 China State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum Beijing 102249 China PetroChina Tarim Oilfield Company Korla Xinjiang 841000 China

The Tarim Basin is the largest petroliferous basin in the northwest of China, and is composed of a Paleozoic marine craton basin and a Meso-Cenozoic continental foreland basin. It is of great significance in exploration of Ordovician. In over 50 years of exploration, oil and gas totaling over 1.6 billion tonnes oil-equivalent has been discovered in the Ordovician carbonate formation. The accumulation mechanisms and distribution rules are quite complicated because of the burial depth more than 3,500 m, multi-source, and multi-stage accumulation, adjustment, reconstruction and re-enrichment in Ordovician. In this paper, we summarized four major advances in the hydrocarbon accumulation mechanisms of Ordovician carbonate reservoirs. First, oil came from Cambrian and Ordovician source rocks separately and as a mixture, while natural gas was mainly cracked gas generated from the Cambrian-Lower Ordovician crude oil. Second, most hydrocarbon migrated along unconformities and faults, with different directions in different regions. Third, hydrocarbon migration and accumulation had four periods： Caledonian, early Hercynian, late Hercynian and Himalayan, and the latter two were the most important for oil and gas exploration. Fourth, hydrocarbon accumulation and evolution can be generally divided into four stages： Caledonian （the period of hydrocarbon accumulation）, early Hercynian （the period of destruction）, late Hercynian （the period of hydrocarbon reconstruction and re-accumulation）, and Himalayan （the period of hydrocarbon adjustment and re-accumulation）. Source rocks （S）, combinations of reservoir-seal （C）, paleo-uplifts （M）, structure balance belt （B） matched in the same time （T） control the hydrocarbon accumulation and distribution in the Ordovician formations. Reservoir adjustment and reconstruction can be classified into two modes of physical adjustment and variation of chemical compositions and five mechanisms. These mechanisms are occurrence displacement, biodegradat

关键词： Tarim Basin carbonate reservoirs oil and gas exploration of the Ordovician hydrocarbon accumulation mechanism hydrocarbon enrichment rule

Advances and problems in hydrocarbon exploration in the Tazhong area, Tarim Basin

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Petroleum Science 2010年第2期7卷 164-178页

作者： Zhou Xinyuan Pang Xiongqi Li Qiming Pang Hong Xiang caifu jiang Zhenxne Li Sumei Liu Luofu Tarim Oilfield Company PetroChina Korla Xinjiang 841000 China Basin and Reservoir Research Center China University of Petroleum Beijing 102249 China State Key Laboratory of Petroleum Resources and Prospecting Beijing 102249 China

Located in the middle of the Tarim Basin, Tazhong is a typical area of compound reservoirs rich in oil and gas found in the Carboniferous, Silurian and Ordovician strata. The proved, probable and possible reserves （3P reserves） in the area amount to 5×108 tons, so it is of great significance to study the advances and problems in hydrocarbon exploration in the Tazhong area. On the basis of exploration history and analysis of scientific problems, we outline eight achievements： distribution characteristics of reservoirs, stages of reservoir formation, different sources of oil and gas and their respective contributions, the effective regional caprock and reservoir-caprock combinations dominating the vertical distribution of hydrocarbon reservoirs, the control of the Tazhong Palaeo-uplift on reservoir formation and establishing geologic models, structure balance belts influencing the reconstruction and residual potential of reservoirs after accumulation, the rules and mechanisms of fractures controlling oil and gas, and the types of favorable reservoirs and their characteristics of controlling oil and gas distribution. We further point out the main problems about the oil and gas exploration in the Tazhong area and put forward some relevant proposals.

关键词： Tarim Basin petroleum geology and exploration controlling factors of hydrocarbon accumulation rules of hydrocarbon accumulation

赤霉素作用机理的分子基础与调控模式研究进展

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植物学通报 2006年第5期23卷 499-510页

作者：黄先忠蒋才富廖立力傅向东中国科学院遗传与发育生物学研究所植物细胞与染色体工程国家重点实验室

赤霉素(gibberellins或gibberellicacid,GA)作为植物生长的必需激素之一,调控植物生长发育的各个方面,如:种子萌发,下胚轴的伸长,叶片的生长和植物开花时间等。近年来随着植物功能基因组学的进一步发展,有关赤霉素生物合成及其调控,赤... 详细信息

赤霉素(gibberellins或gibberellicacid,GA)作为植物生长的必需激素之一,调控植物生长发育的各个方面,如:种子萌发,下胚轴的伸长,叶片的生长和植物开花时间等。近年来随着植物功能基因组学的进一步发展,有关赤霉素生物合成及其调控,赤霉素信号转导途径,以及赤霉素与其他激素和环境因子的互作等领域的研究取得了较大的进展。本文综述了赤霉素生物合成的生物学途径及其调控研究;GA信号转导通道的研究进展,特别是DELLA蛋白阻遏植物生长发育的分子机理和GA解除阻遏作用(derepress)的分子模型;GA受体研究的新进展;探讨GA与其它激素之间的相互作用,以及植物在应答环境过程中的作用。

关键词：赤霉素 DELLA蛋白信号转导互作

Coordinated regulation of plant growth by gibberellins and auxin

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Coordinated regulation of plant growth by gibberellins and a...

Multiple Arabidopsis phosphate-starvation responses are modulated by the GA-DELLA signaling pathway

2011全国植物生物学研讨会

作者： Senlin Xiao,caifu jiang,Qinfang Yao,Xiuhua Gao,Xiangdong Fu~* Institute of Genetics and Developmental Biology,Chinese Academy of Sciences,Beijing 100101, P.R.China

The phytohormones auxin and gibberellin(GA) cooperatively regulate many plant developmental ***,the molecular mechanisms underlying this crosstalk still remain *** we show that GA regulates auxin distribution and control root meristem size in the *** proteins interact directly with AXR3/IAA17 and SHY2/IAA3,repressors of auxin signalling,and delay auxin-mediated destabilization of AUX/IAA *** antagonizes this process via the degradation of DELLA proteins to release AUX/IAA,which in turn enhances binding of SCF to AUX/IAA proteins,thereby promoting PIN activity and root *** interaction works both ways,AUX/IAA proteins also influence GA

关键词： Arabidopsis DELLA auxin cross-talk root growth

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Multiple Arabidopsis phosphate-starvation responses are modu...