Induction of Heat Shock Proteins and Acquisition of Thermotolerance in Germinating Pigeonpea Seeds |
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Authors: | V. Sri Devi N.V. Satyanarayana K.V. Madhava Rao |
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Affiliation: | (1) Department of Botany, Andhra University, Visakhapatnam-, 530 003 Andhra Pradesh, India |
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Abstract: | Heat shock proteins (HSPs) ranging in molecular masses from 14 to 110 kDa were induced in embryonic axes of germinating Cajanus cajan (L.) Millspaugh seeds after exposure to 40 °C for 1 or 2 h. At 45 °C, there was a marked decline in synthesis of HSPs. A close relationship was observed between HSPs induced and the growth of the germinating seeds. Pretreatment of germinating seeds at 40 °C for 1 h or 45 °C for 10 min followed by incubation at 28 °C for 3 h led to considerable thermotolerance (45 °C, 2 h) and the recovery of protein synthesis. This revised version was published online in July 2006 with corrections to the Cover Date. |
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Keywords: | Cajanus cajan high temperature stress |
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