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Chickpea ferritin CaFer1 participates in oxidative stress response, and promotes growth and development

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Title Chickpea ferritin CaFer1 participates in oxidative stress response, and promotes growth and development
 
Creator Parveen, Shaista
Gupta, Deepti Bhushan
Dass, Suchismita
Kumar, Amit
Pandey, Aarti
Chakraborty, Subhra
Chakraborty, Niranjan
 
Subject Plant molecular biology
Plant stress responses
 
Description Accepted date: 14 July 2016
Ferritins store and sequester iron, and regulate iron homeostasis. The cDNA for a stress-responsive phytoferritin, previously identified in the extracellular matrix (ECM) of chickpea (Cicer arietinum), was cloned and designated CaFer1. The CaFer1 transcript was strongly induced in chickpea exposed to dehydration, hypersalinity and ABA treatment. Additionally, it has role in the defense against Fusarium oxysporum infection. Functional complementation of the yeast frataxin-deficient mutant, Δyfh1, indicates that CaFer1 functions in oxidative stress. The presence of CaFer1 in the extracellular space besides chloroplast establishes its inimitable nature from that of other phytoferritins. Furthermore, CaFer1 expression in response to iron suggests its differential mechanism of accumulation at two different iron conditions. CaFer1-overexpressing transgenic plants conferred improved growth and development, accompanied by altered expression of iron-responsive genes. Together, these results suggest that the phytoferritin, CaFer1, might play a key role in maintenance of iron buffering and adaptation to environmental challenges.
This work was supported by grants from the Department of Biotechnology (DBT), Govt. of India and the National Institute of Plant Genome Research, New Delhi to N.C. We thank the DBT, Govt. of India for providing pre-doctoral fellowship to S.P. A.P. received postdoctoral fellowship from the National Institute of Plant Genome Research, New Delhi. We also thank Mr. Jasbeer Singh for illustration and graphical representation.
 
Date 2016-08-11T10:51:52Z
2016-08-11T10:51:52Z
2016
 
Type Article
 
Identifier Scientific Reports, 6: 31218
2045-2322
http://172.16.0.77:8080/jspui/handle/123456789/674
http://www.nature.com/articles/srep31218
10.1038/srep31218
 
Language en_US
 
Publisher Nature Publishing Group