Work

Seedling stage low temperature response in tolerant and susceptible rice genotypes suggests role of relative water content and members of OsSNAC gene family

Year: 2016

Type: article

Abstract: Low temperature (LT) severely affects rice growth and grain yield. Recently, we reported contrasting genotypes including ARR 09 and Takyer for seedling stage long duration low temperature response. Here we show that susceptible rice genotypes show an increase in lipid peroxide levels and decrease in relative water content (RWC) to a higher extent in comparison to tolerant genotypes in response to 3 h LT. Stress induced NAC family members (OsNAC1, OsNAC2, OsNAC3, and OsNAC5) showed a higher transcript accumulation in tolerant genotypes than in sensitive genotypes after LT treatment suggesting stress tolerance might be due to higher expression of stress-responsive transcription factors. Furthermore, ARR 09 can be used as an important genetic resource to better understand LT tolerance mechanism.

Source: Plant Signaling & Behavior

DOI: 10.1080/15592324.2016.1138192

Authors: Tapu Ghosh, Mayank Rai, Wricha Tyagi, Clarissa Challam

Institution: Central Agricultural University

Language: English

Topic: Plant Stress Responses and Tolerance

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: bronze

Funders: ICAR - National Agricultural Science Fund, Indian Council of Agricultural Research