Author: Gong, M.; Chen, Bo.; Li, Z.-G.; Guo, L.-H.
Description: A heat-shock pretreatment at 42 °C for 4 h followed by a 4-h recovery significantly enhanced survival rates of seedlings from two varieties of maize that differ in stress resistance. The procedure mitigated electrolyte leakage of primary roots and alleviated vitality loss of coleoptiles under severe heat, chilling, drought and salt stress, indicating that heat-shock pretreatment can induce cross adaptation. The heat-shock pretreatment, that induced cross adaptation, also produced an endogenous H2O2 peak in maize seedlings. Exogenous H2O2 treatments simultaneously enhanced multi-resistance to heat, chilling, drought and salt stress, implying that H2O2 may play a signaling role in triggering cross adaptation of maize seedlings to various stresses.
Subject headings: cross adaptation; heat shock; hydrogen peroxide; Zea mays
Publication year: 2001
Journal or book title: Journal of Plant Physiology
Volume: 158
Issue: 9
Pages: 1125-1130
Find the full text : http://www.sciencedirect.com/science/article/pii/S0176161704701388
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Type: Journal Article
Serial number: 865