Role of Mitogen-Activated Protein Kinase Cascade in Combating Abiotic Stress in Plants
Role of Mitogen-Activated Protein Kinase Cascade in Combating Abiotic Stress in Plants
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DOI：
10.1007/978-1-4939-2211-6_8
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
H. Ara;A. Sinha
中科院分区：
文献类型：
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作者：
H. Ara;A. Sinha
无柄植物为了生长和生存，必须抵抗过多的生物和非生物胁迫。植物能够在细胞表面感知这些压力，并将它们转移到细胞核中进行适当的细胞调整，这是植物在进化过程中发展起来的最复杂的机制之一。丝裂原活化蛋白激酶（mitogen-activated protein kinase，MAPK）级联反应是参与细胞信号转导的重要级联反应之一，广泛存在于真核生物中。这种独特的蛋白质级联也参与植物的几个发育和重要过程。这基本上是一种磷酸化介导级联反应，由三种组分组成：MAPK激酶激酶（MAPKKK/MAP 3 K/MEKK/MKKK）、MAPK激酶（MAPKK/MAP 2K/MEK/MKK）和MAPK（MPK），它们通过磷酸化作用相互连接。MAPK级联反应的所有组成部分都是多基因家族，参与了应激信号转导中特异性刺激的有效传递。在本章中，我们将强调参与的不同成员的磷酸化级联过程中的非生物胁迫在植物。
Plants being sessile have to counter a plethora of stresses, both biotic and abiotic in order to grow and survive. The ability of plants to perceive these stresses at the cell surface and transduce them to the nucleus for appropriate cellular readjustment is one of the most sophisticated mechanisms they have developed during the process of evolution. Among several cascades helping in signal transduction, mitogen-activated protein kinase (MAPK) cascade is one of the most important cascades that is ubiquitously present in all eukaryotes. This unique protein cascade is also involved in several developmental and vital processes in plants. This is essentially a phosphorelay cascade consisting of three components, a MAPK kinase kinase (MAPKKK/MAP3K/MEKK/MKKK), a MAPK kinase (MAPKK/MAP2K/MEK/MKK), and a MAPK (MPK) connected to each other by the event of phosphorylation. All these components of MAPK cascade are multigene family and are involved in efficient transmission of specific stimuli in response to stress signaling. In the present chapter, we will highlight the involvement of different members of this phosphorelay cascade during abiotic stress in plants.