为了探析甜瓜(Cucumis melo L.)响应涝害胁迫的分子机制,采用转录组和蛋白组学方法研究了甜瓜耐涝型材料L45和涝敏感型材料L39在正常培养和涝害胁迫处理条件下的差异表达基因和蛋白。结果表明,L39-W vs L39-C的差异表达基因数为3532个,...为了探析甜瓜(Cucumis melo L.)响应涝害胁迫的分子机制,采用转录组和蛋白组学方法研究了甜瓜耐涝型材料L45和涝敏感型材料L39在正常培养和涝害胁迫处理条件下的差异表达基因和蛋白。结果表明,L39-W vs L39-C的差异表达基因数为3532个,差异表达蛋白数为105个;L45-W vs L45-C的差异表达基因数为1842个,差异表达蛋白数为38个。转录组与蛋白组联合分析发现,L39-W vs L39-C中38个基因在mRNA和蛋白质水平上联合上调表达,12个基因联合下调表达;L45-W vs L45-C中7个基因联合上调表达,3个基因联合下调表达。KEGG显著性富集分析结果发现,L39-W vs L39-C中联合上调表达的基因显著富集在类黄酮生物合成、苯丙烷生物合成、苯丙氨酸代谢、缬氨酸、亮氨酸和异亮氨酸生物合成、精氨酸和脯氨酸代谢等;而L45-W vs L45-C中联合上调表达的基因显著富集在α-亚麻酸代谢、类黄酮生物合成、苯丙烷生物合成、亚油酸代谢等。本研究联合转录组与蛋白组数据进行了差异表达基因与蛋白分析,为进一步挖掘甜瓜响应涝害胁迫的关键基因及通路奠定了一定基础。展开更多
Melatonin and dopamine can potentially prevent waterlogging stress in apples.The current study investigated the mechanism by which melatonin and dopamine alleviate apple waterlogging stress.This study demonstrated tha...Melatonin and dopamine can potentially prevent waterlogging stress in apples.The current study investigated the mechanism by which melatonin and dopamine alleviate apple waterlogging stress.This study demonstrated that melatonin and dopamine alleviated waterlogging by removing reactive oxygen species(ROS),and that the nitric oxide(NO)content and nitrate reductase(NR)activity were significantly correlated.Melatonin and dopamine were also found to recruit different candidate beneficial endophytes(melatonin:Novosphingobium,Propionivibrio,and Cellvibrio;dopamine:Hydrogenophaga,Simplicispira,Methyloversatilis,Candidatus_Kaiserbacteria,and Humicola),and these endophytes were significantly and positively correlated with plant growth.Network analyses showed that melatonin and dopamine significantly affected the endophytic bacterial and fungal communities under waterlogging stress.The metabolomic results showed that melatonin and dopamine led to waterlogging resistance by upregulating the abundance of beneficial substances such as amino acids,flavonoids,coumarins,and organic acids.In addition,melatonin and dopamine regulated the physicochemical properties of the soil,which altered the endophyte community and affected plant growth.The co-occurrence network demonstrated close and complex relationships among endophytes,metabolites,soil,and the plants.Our results demonstrate that melatonin and dopamine alleviate waterlogging stress in apples by recruiting beneficial endophytes to enhance physiological resilience.This study provides new insights into how melatonin and dopamine alleviate stress and a theoretical basis for synergistic beneficial microbial resistance to waterlogging stress.展开更多
Waterlogging is one of the major abiotic stresses threatening crop yields globally.Under waterlogging stress,plants suffer from oxidative stress,heavy metal toxicity and energy deficiency,leading to metabolic disorder...Waterlogging is one of the major abiotic stresses threatening crop yields globally.Under waterlogging stress,plants suffer from oxidative stress,heavy metal toxicity and energy deficiency,leading to metabolic disorders and growth inhibition.On the other hand,plants have evolved waterlogging-tolerance or adaptive mechanisms,including morphological changes,alternation of respiratory pathways,antioxidant protection and endogenous hormonal regulation.In this review,recent advances in studies on the effects of waterlogging stress and the mechanisms of waterlogging tolerance in plants are presented,and the genetic differences in waterlogging tolerance among plant species or genotypes within a species are illustrated.We also summarize the identified QTLs and key genes associated with waterlogging tolerance.展开更多
文摘为了探析甜瓜(Cucumis melo L.)响应涝害胁迫的分子机制,采用转录组和蛋白组学方法研究了甜瓜耐涝型材料L45和涝敏感型材料L39在正常培养和涝害胁迫处理条件下的差异表达基因和蛋白。结果表明,L39-W vs L39-C的差异表达基因数为3532个,差异表达蛋白数为105个;L45-W vs L45-C的差异表达基因数为1842个,差异表达蛋白数为38个。转录组与蛋白组联合分析发现,L39-W vs L39-C中38个基因在mRNA和蛋白质水平上联合上调表达,12个基因联合下调表达;L45-W vs L45-C中7个基因联合上调表达,3个基因联合下调表达。KEGG显著性富集分析结果发现,L39-W vs L39-C中联合上调表达的基因显著富集在类黄酮生物合成、苯丙烷生物合成、苯丙氨酸代谢、缬氨酸、亮氨酸和异亮氨酸生物合成、精氨酸和脯氨酸代谢等;而L45-W vs L45-C中联合上调表达的基因显著富集在α-亚麻酸代谢、类黄酮生物合成、苯丙烷生物合成、亚油酸代谢等。本研究联合转录组与蛋白组数据进行了差异表达基因与蛋白分析,为进一步挖掘甜瓜响应涝害胁迫的关键基因及通路奠定了一定基础。
基金supported by the National Natural Science Foundation of China(31901964)the Natural Science Foundation of Hebei,China(C2021204158)+3 种基金the Science and Technology Project of Hebei Education Department,China(BJK2022012)the Introduced Talents Project of Hebei Agricultural University,China(YJ201904)the earmarked fund for Hebei Apple Innovation Team of Modern Agroindustry Technology Research System,China(HBCT2024150205)the earmarked fund for the China Agricultural Research System,China(CARS-27).
文摘Melatonin and dopamine can potentially prevent waterlogging stress in apples.The current study investigated the mechanism by which melatonin and dopamine alleviate apple waterlogging stress.This study demonstrated that melatonin and dopamine alleviated waterlogging by removing reactive oxygen species(ROS),and that the nitric oxide(NO)content and nitrate reductase(NR)activity were significantly correlated.Melatonin and dopamine were also found to recruit different candidate beneficial endophytes(melatonin:Novosphingobium,Propionivibrio,and Cellvibrio;dopamine:Hydrogenophaga,Simplicispira,Methyloversatilis,Candidatus_Kaiserbacteria,and Humicola),and these endophytes were significantly and positively correlated with plant growth.Network analyses showed that melatonin and dopamine significantly affected the endophytic bacterial and fungal communities under waterlogging stress.The metabolomic results showed that melatonin and dopamine led to waterlogging resistance by upregulating the abundance of beneficial substances such as amino acids,flavonoids,coumarins,and organic acids.In addition,melatonin and dopamine regulated the physicochemical properties of the soil,which altered the endophyte community and affected plant growth.The co-occurrence network demonstrated close and complex relationships among endophytes,metabolites,soil,and the plants.Our results demonstrate that melatonin and dopamine alleviate waterlogging stress in apples by recruiting beneficial endophytes to enhance physiological resilience.This study provides new insights into how melatonin and dopamine alleviate stress and a theoretical basis for synergistic beneficial microbial resistance to waterlogging stress.
基金supported by the Key Research Projects of Zhejiang Province,China(2021C02064-3 and 2021C02057)the China Agriculture Research System(CARS-05)the Jiangsu Collaborative Innovation Center for Modern Crop Production,China(JCIC-MCP).
文摘Waterlogging is one of the major abiotic stresses threatening crop yields globally.Under waterlogging stress,plants suffer from oxidative stress,heavy metal toxicity and energy deficiency,leading to metabolic disorders and growth inhibition.On the other hand,plants have evolved waterlogging-tolerance or adaptive mechanisms,including morphological changes,alternation of respiratory pathways,antioxidant protection and endogenous hormonal regulation.In this review,recent advances in studies on the effects of waterlogging stress and the mechanisms of waterlogging tolerance in plants are presented,and the genetic differences in waterlogging tolerance among plant species or genotypes within a species are illustrated.We also summarize the identified QTLs and key genes associated with waterlogging tolerance.
