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Study on the Physiology of Transgenic Rice Seedlings with Gene of Betaine Aldehyde Dehydrogenase Gene under Salt Stress
Author(s): 
Pages: 38-42
Year: Issue:  3
Journal: ACTA AGRICULTURAE BOREALI-SINICA

Keyword:  水稻甜菜碱醛脱氢酶基因盐胁迫耐盐生理;
Abstract: 在NaCl浓度0,3.0,5.0,7.0 g/L下,对转甜菜碱醛脱氢酶(BADH)基因水稻的两个品系51-22,52-7及其受体亲本中花8号进行幼苗耐盐性试验.结果表明:转BADH基因水稻比其受体亲本耐盐性强,在高NaCl浓度(5.0,7.0 g/L)胁迫下,甜菜碱醛脱氢酶基因可以提高盐胁迫下水稻幼苗过氧化氢酶(CAT)活性,提高根系活力和叶绿素含量,稳定细胞膜的透性,降低植株体内Na+的积累,从而减轻幼苗受盐害的程度.盐胁迫下水稻幼苗的CAT活性、SNa+/K+、叶Na+/K+、叶绿素含量是影响幼苗生长的主要生理指标.
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