Identification of salt gland-associated genes and characterization of a dehydrin from the salt secretor mangrove Avicennia officinalis.

ABSTRACT:

Background

Salt stress is a major challenge for growth and development of plants. The mangrove tree Avicennia officinalis has evolved salt tolerance mechanisms such as salt secretion through specialized glands on its leaves. Although a number of structural studies on salt glands have been done, the molecular mechanism of salt secretion is not clearly understood. Also, studies to identify salt gland-specific genes in mangroves have been scarce.

Results

By subtractive hybridization (SH) of cDNA from salt gland-rich cell layers (tester) with mesophyll tissues as the driver, several Expressed Sequence Tags (ESTs) were identified. The major classes of ESTs identified include those known to be involved in regulating metabolic processes (37%), stress response (17%), transcription (

SUBMITTER: Jyothi-Prakash PA 

PROVIDER: S-EPMC4247641 | biostudies-literature | 2014 Nov

REPOSITORIES: biostudies-literature