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Traversing the links between heavy metal stress and plant signaling

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Title Traversing the links between heavy metal stress and plant signaling
 
Creator Jalmi, Siddhi K.
Bhagat, Prakash K.
Verma, Deepanjali
Noryang, Stanzin
Tayyeba, Sumaira
Singh, Kirti
Sharma, Deepika
Sinha, Alok Krishna
 
Subject calcium signaling
chelators
heavy metals
hormones
MAPKs
metal transporters
metallothioneins
microRNAs
 
Description Accepted date: 03 January 2018
Plants confront multifarious environmental stresses widely divided into abiotic and biotic
stresses, of which heavy metal stress represents one of the most damaging abiotic
stresses. Heavy metals cause toxicity by targeting crucial molecules and vital processes
in the plant cell. One of the approaches by which heavy metals act in plants is by over
production of reactive oxygen species (ROS) either directly or indirectly. Plants act against
such overdose of metal in the environment by boosting the defense responses like
metal chelation, sequestration into vacuole, regulation of metal intake by transporters,
and intensification of antioxidative mechanisms. This response shown by plants is the
result of intricate signaling networks functioning in the cell in order to transmit the
extracellular stimuli into an intracellular response. The crucial signaling components
involved are calcium signaling, hormone signaling, and mitogen activated protein kinase
(MAPK) signaling that are discussed in this review. Apart from signaling components
other regulators like microRNAs and transcription factors also have a major contribution
in regulating heavy metal stress. This review demonstrates the key role of MAPKs in
synchronously controlling the other signaling components and regulators in metal stress.
Further, attempts have been made to focus on metal transporters and chelators that are
regulated by MAPK signaling.
This work is funded by Department of Biotechnology, Government of India, Department of Science and Technology, Government of India and core grant of National Institute of Plant Genome Research, India.
 
Date 2018-02-23T05:17:09Z
2018-02-23T05:17:09Z
2018
 
Type Article
 
Identifier Frontiers in Plant Science, 9: 12
1664-462X
http://223.31.159.10:8080/jspui/handle/123456789/840
https://www.frontiersin.org/articles/10.3389/fpls.2018.00012/full
https://doi.org/10.3389/fpls.2018.00012
 
Language en_US
 
Format application/pdf
 
Publisher Frontiers Media S.A.