2+ and CaM on Growth and Peroxidase Isoenzymes of Winter Wheat Seedling Under Water Stress

doi:10.3321/j.issn:1000-7091.2001.03.013

Abstract

Abstract: The effects of Ca²⁺/CaM on growth and POD isoenzymes of winter wheat (cv.winter No.8 fengkang) seedlings under water stress were studied.The results showed that Ca²⁺/CaM,as the second messengers,played important roles in transducting drought signal.They not only increased the activities of POD isoenzymes,but also enhanced the adaptability of wheat seedings to drought.The effects were positive proportion to the Ca²⁺ concentration.Among drought signal systems,POD isoenzyme genes were possibly more sensitive to drought signal transfered by Ca²⁺/CaM messengers.The drought signal could be transducted among the different organs of wheat plant.Compared to leaves,POD isoenzyme genes in roots had higher adaptability to water stress.

Key words: Wheat, Water stress, Drought signal, Ca²⁺/ CaM, POD isoensyme

GU Juntao, GUO Xiulin, LI Guangmin, CUI Siping, ZHANG Rongzhi. ²⁺ and CaM on Growth and Peroxidase Isoenzymes of Winter Wheat Seedling Under Water Stress[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2001, 16(3): 62-67. doi: 10.3321/j.issn:1000-7091.2001.03.013.

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http://www.hbnxb.net/EN/Y2001/V16/I3/62

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²⁺ and CaM on Growth and Peroxidase Isoenzymes of Winter Wheat Seedling Under Water Stress

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