NDLI: Overexpression of microRNA395c or 395e affects differently the seed germination of Arabidopsis thaliana under stress conditions

Content Provider	Springer Nature Link
Author	Kim, Joo Yeol Lee, Hwa Jung Jung, Hyun Ju Maruyama, Kazuyuki Suzuki, buhiro Kang, Hunseung
Copyright Year	2010
Abstract	The Arabidopsis genome encodes six members of microRNA395 (miR395) family previously determined to regulate the expression of ATP sulfurylase (APS) and the sulfate transporter SULTR2;1. However, the mRNA targets for the individual miR395 family members and the biological consequences produced by target gene regulation of each miR395 remain to be identified. In this study, a transgenic approach was employed to determine the mRNA targets for each miR395 family member as well as the role each member plays in plant growth under abiotic stress conditions. Overexpression of miR395c or miR395e retarded and accelerated, respectively, the seed germination of Arabidopsis under high salt or dehydration stress conditions. Despite a single nucleotide difference between miR395c and miR395e, the cleavage of mRNA targets, APS1, APS3, APS4 and SULTR2;1, was not same in miR395c- and miR395e-overexpressing plants. These results demonstrate that a given miRNA family containing a single nucleotide difference can guide the cleavage of various mRNA targets, thereby acting as a positive or negative regulator of seed germination under stress.
Starting Page	1447
Ending Page	1454
Page Count	8
File Format	PDF
ISSN	00320935
Journal	Planta
Volume Number	232
Issue Number	6
e-ISSN	14322048
Language	English
Publisher	Springer-Verlag
Publisher Date	2010-09-14
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Abiotic stress Arabidopsis MicroRNA miR395 Sulfate transporter Ecology Forestry Agriculture Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Genetics Plant Science

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