Work

Chilling Induced Oxidative Stress in Germinating Wheat Grains as Affected by Water Stress and Calcium

Year: 2002

Type: article

Abstract: Wheat (Triticum aestivum L.) plants were subjected to mild water stress during grain filling at milk (early, medium, and late) and dough (early, soft, hard) stages. The grains harvested from stressed plants were subjected to low temperature stress of 10 °C for 24 h in presence or absence of 1 mM CaCl2, and embryos were examined for oxidative injury. The embryos of grains water stressed at milk and soft dough stages showed lowest contents of H2O2 and malondialdehyde and highest membrane stability index, ascorbic acid content, and activities of catalase, ascorbate peroxidase, and superoxide dismutase as compared to control embryos or water-stressed at other stages. Presence of Ca2+ in the medium reduced H2O2 and malondialdehyde content and increased ascorbic acid content, and catalase, ascorbate peroxidase and superoxide dismutase activities.

Source: Biologia Plantarum

DOI: 10.1023/a:1022308809328

Authors: H. Nayyar, S.K. Kaushal

Institutions: Panjab University, Chaudhary Sarwan Kumar Himachal Pradesh Krishi Vishvavidyalaya

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

OpenAlex ID: W237895320