摘要
低温胁迫会抑制植物生长发育,尽管植物可有效感知低温胁迫的发生并做出反应,但仅仅依靠植物本身的抗冻能力还不足以抵抗低温胁迫对植物的伤害。低温胁迫造成植物根系生长异常且对水分的吸收减少、叶片结构变化且叶绿体受损、影响植物的开花生殖和抑制种子萌发。增强植物抗低温胁迫能力主要策略是使用抗低温胁迫调节物质(激素和生长调节剂)、接种共生微生物(丛枝菌根真菌、解淀粉芽孢杆菌和巴西固氮螺菌等)和进行基因工程改造。低温胁迫如何影响植物细胞代谢还没有定论,共生微生物增强植物抗低温胁迫能力的分子机制尚不明晰。因此,探究受低温胁迫植物的细胞代谢通路和植物细胞响应低温胁迫的分子机制可能会成为未来该领域的研究热点。
Cold stress can inhibit plant growth and development.Although plants can effectively sense the occurrence of cold stress and respond to it,the frost resistance of plants alone is not enough to resist the damage to plants caused by cold stress.Cold stress causes abnormal growth of plant roots and reduces water absorption,changes leaf structure and causes damage to chloroplasts,affects plant flowering and reproduction and inhibits seed germination.The main strategies to enhance the ability of plants to resist cold stress are the use of cold stress regulators(hormones and growth regulators),inoculation of symbiotic microorganisms(Arbuscular mycorrhizal fungi,Bacillus amyloliquefaciens,Azospirillumbrasilense,etc.)and genetic engineering.How cold stress affects plant cell metabolism is still inconclusive,and the molecular mechanism that symbiotic microorganisms enhance plant resistance to cold stress remains unclear.Therefore,exploring the metabolic pathways of plant cells and the molecular mechanism of plant cells responding to cold stress may become research hotspots in this field in the future.
作者
郭佳强
曾鑫
陈孝平
GUO Jiaqiang;ZENG Xin;CHEN Xiaoping(School of Environmental Ecology and Biological Engineering,Wuhan Institute of Technology,Wuhan 430205,China)
出处
《武汉工程大学学报》
CAS
2023年第2期119-125,共7页
Journal of Wuhan Institute of Technology
基金
湖北省技术创新专项重大项目(2019ABA091)。
关键词
低温胁迫
植物
低温信号
策略
细胞代谢
分子机制
cold stress
plants
cold signal
strategy
cellular metabolism
molecular mechanism
