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中国农学通报 ›› 2010, Vol. 26 ›› Issue (16): 217-222.

• 林学 园艺 园林 • 上一篇    下一篇

春季水分胁迫对佛甲草生长的影响

王雪娟 张雪平,张继国,刘 超   

  • 收稿日期:2010-03-30 修回日期:2010-05-24 出版日期:2010-08-20 发布日期:2010-08-20
  • 基金资助:
    安徽省教育厅自然科学基金项目

Effects of Water Stress on the Growth of Sesum Lineare in Spring

  • Received:2010-03-30 Revised:2010-05-24 Online:2010-08-20 Published:2010-08-20

摘要: 为调查佛甲草对水分适应能力,采用盆栽试验方法,研究了水分胁迫及复水对佛甲草植株的生长状况、组织的相对含水量(RWC)、叶绿素含量、相对质膜透性、脯氨酸含量、根系活力和丙二醛等生理生化指标的变化。研究结果表明,在水分胁迫下,佛甲草植株生长受到一定程度抑制;在严重水分胁迫下组织相对含水量明显下降;叶绿素含量呈先升后降的趋势;细胞膜透性则表现为持续升高;受水分胁迫的影响,脯氨酸含量及丙二醛含量随水分胁迫强度的增强而增加,随胁迫时间的延长而降低,受胁迫越重,含量越高。复水后,生长情况得到明显改善,各种生理生化指标逐渐恢复到正常状态。

关键词: 柑橘, 柑橘, 愈伤组织, 多酚, 多酚氧化酶, 褐化

Abstract: In order to investigate the reaction and adaptation of Sesum lineare under water stress , the pot experiment was carried on studying the water stress and rewatering on Sesum lineare growth conditions, the relative water content (RWC) of Sesum lineare tissue, chlorophyll content, Sesum lineare relative membrane permeability, proline content, root vigor and activity of MDA, such as changes in physiological and biochemical indexes.The results indicated that Sesum lineare growth was restrained to some extent and the relative water content continually decreased under serious water stress; chlorophyll content was first increased and then decreased with the increase of water stress, membrane permeability increased during water stress; by the effects of water stress, proline content and MDA increased with the intensity of water stress increasing and reduces with the stress time going on, even the more degree of water stress, the content became higher. After rewatering, the growth condition of Sesum lineare had been markedly improved and a variety of physiological and biochemical indexes of Sesum lineare gradually returned to normal.