Sucrose non-fermenting 1-related protein kinase 2(Sn RK2) is a plant-specific serine/threonine kinase involved in response to adverse environmental stimuli. Previous studies showed that Ta Sn RK2.4 was involved in res...Sucrose non-fermenting 1-related protein kinase 2(Sn RK2) is a plant-specific serine/threonine kinase involved in response to adverse environmental stimuli. Previous studies showed that Ta Sn RK2.4 was involved in response to abiotic stresses and conferred enhanced tolerance to multiple stresses in Arabidopsis. Further experiments were performed to decipher the underlying mechanisms and discover new functions. The genomic sequences of Ta Sn RK2.4 s locating on chromosome 3 A, 3 B and 3 D were obtained. Sequencing identified one and 13 variations of Ta Sn RK2.4-3 A and Ta Sn RK2.4-3 B, respectively, but no variation was detected in Ta Sn RK2.4-3 D. The markers 2.4 AM1, 2.4 BM1 and 2.4 BM2 were developed based on three variations. Association analysis showed that both Ta Sn RK2.4-3 A and Ta Sn RK2.4-3 B were significantly associated with thousand-kernel weight(TKW), and that SNP3 A-T and SNP3 B-C were favorable alleles for higher TKW. Yeast two-hybrid and split luciferase assays showed that Ta Sn RK2.4 physically interacted with abiotic stress responsive protein Ta LTP3, suggesting that Ta Sn RK2.4 enhanced abiotic stress tolerance by activating Ta LTP3. Our studies suggested that Ta Sn RK2.4 have potential in improving TKW and response to abiotic stress.展开更多
大气中二氧化碳浓度升高(elevated CO2 concentration, e[CO2])及其带来的温室效应正在给全球农业生产力及粮食和营养安全带来极大挑战。研究植物对大气二氧化碳浓度变化的响应对于理解和预测未来全球气候变化对植物适应性和演化的影响...大气中二氧化碳浓度升高(elevated CO2 concentration, e[CO2])及其带来的温室效应正在给全球农业生产力及粮食和营养安全带来极大挑战。研究植物对大气二氧化碳浓度变化的响应对于理解和预测未来全球气候变化对植物适应性和演化的影响,以及提高农作物产量至关重要。前期对二氧化碳的研究为深入了解e[CO2]对叶片光合作用、气体交换、碳水化合物动态和植物生长的影响提供了诸多证据。在这篇综述中,我们专注于探讨e[CO2]对植物生长发育过程和细胞功能的影响及其内在分子机制的研究进展。主要集中在综述二氧化碳对植物生长发育、植株形态结构以及内部生理生化机能的作用。最后对植物发育响应气候变化的研究进行了讨论和展望。展开更多
基金supported by the National Key Research and Development Program of China (2017YFD0300202)the National Natural Science Foundation of China (31571660)+1 种基金the Heilongjiang Postdoctoral Financial Assistance, China (LBH-Z17200)the Research Project of Heilongjiang Academy of Agricultural Sciences, China (2018YYYF018)。
文摘Sucrose non-fermenting 1-related protein kinase 2(Sn RK2) is a plant-specific serine/threonine kinase involved in response to adverse environmental stimuli. Previous studies showed that Ta Sn RK2.4 was involved in response to abiotic stresses and conferred enhanced tolerance to multiple stresses in Arabidopsis. Further experiments were performed to decipher the underlying mechanisms and discover new functions. The genomic sequences of Ta Sn RK2.4 s locating on chromosome 3 A, 3 B and 3 D were obtained. Sequencing identified one and 13 variations of Ta Sn RK2.4-3 A and Ta Sn RK2.4-3 B, respectively, but no variation was detected in Ta Sn RK2.4-3 D. The markers 2.4 AM1, 2.4 BM1 and 2.4 BM2 were developed based on three variations. Association analysis showed that both Ta Sn RK2.4-3 A and Ta Sn RK2.4-3 B were significantly associated with thousand-kernel weight(TKW), and that SNP3 A-T and SNP3 B-C were favorable alleles for higher TKW. Yeast two-hybrid and split luciferase assays showed that Ta Sn RK2.4 physically interacted with abiotic stress responsive protein Ta LTP3, suggesting that Ta Sn RK2.4 enhanced abiotic stress tolerance by activating Ta LTP3. Our studies suggested that Ta Sn RK2.4 have potential in improving TKW and response to abiotic stress.
文摘大气中二氧化碳浓度升高(elevated CO2 concentration, e[CO2])及其带来的温室效应正在给全球农业生产力及粮食和营养安全带来极大挑战。研究植物对大气二氧化碳浓度变化的响应对于理解和预测未来全球气候变化对植物适应性和演化的影响,以及提高农作物产量至关重要。前期对二氧化碳的研究为深入了解e[CO2]对叶片光合作用、气体交换、碳水化合物动态和植物生长的影响提供了诸多证据。在这篇综述中,我们专注于探讨e[CO2]对植物生长发育过程和细胞功能的影响及其内在分子机制的研究进展。主要集中在综述二氧化碳对植物生长发育、植株形态结构以及内部生理生化机能的作用。最后对植物发育响应气候变化的研究进行了讨论和展望。
