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首页> 外文会议>International Wheat Genetics Symposium >Effect of salt on growth, mineral nutrition and profiles of polypeptides of two wheat species.
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Effect of salt on growth, mineral nutrition and profiles of polypeptides of two wheat species.

机译：盐对两颗小麦物种多肽生长，矿物营养和谱的影响。

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Two wheat species, Triticum durum (cv. Ben Bachir) and Triticum aestivum (cv. Tanit), were cultivated hydroponically and subjected to salt stress (50 or 100 mM NaCl) up to 18 days. Growth, mineral nutrition and polypeptidic composition were investigated. Soluble proteins extracted from leaves were analysed by two dimensional electrophoresis in order to detect NaCl induced changes in the polypeptide patterns. Athough salt treatment resulted in growth reduction for both species, T. durum was much moretolerant than T. aestivum. The average concentrations of Na~+ or Cl~- ions in the whole plant tissues were similar in the two species. However, ion translocation to shoots was more important in T. durum than in T. aestivum. This could explain the maintenance of leaf water status in 7. durum. Five hundred spots were detected. The greatest alterations in the polypeptide profiles following salt stress were found in the sensitive species. Among 56 spots (molecular mass, 15-31 kDa) specifically considered inthe acidic region of the gel, 5 spots disappeared in both salt treated species, 7 others disappeared only in salt treated T. aestivum plants. Twenty seven spots declined in salt treated T. aestivum plants while only 20 declined in salt treated T. durumplants. No increased in T. aestivum, 12 spots increased, five remained unchanged, and two polypeptides were induced.
机译：两颗小麦物种，小麦杜兰姆（CV.本Bachir）和Triticum Aestivum（CV.Tanit），培养水耕种并经受盐胁迫（50或100mM NaCl），最长可达18天。研究了生长，矿物营养和多肽组合物。通过二维电泳分析从叶中提取的可溶性蛋白质，以检测NaCl诱导多肽图案的变化。 Athough盐处理导致两种物种的生长降低，T.Durum比Aestivum含量含量。整个植物组织中Na〜+或Cl〜离子的平均浓度在两个物种中相似。然而，在T.Durum中射击的离子易位比在杜马里姆更重要。这可以解释7.杜鲁姆的叶水状况的维护。检测到五百个斑点。在敏感物种中发现盐胁迫后多肽谱的最大改变。在56个斑点（分子量，15-31kda）中特别认为凝胶的酸性区域，盐处理物种的5个斑点消失，其他7种仅在盐处理的T. aestivum植物中消失了7种。盐治疗的T. aestivum植物中有二十七个斑点，而在盐治疗T.杜粥用植物中只有20个下降。在T. aestivum中没有增加，增加了12个斑点，五个剩余5个不变，诱导两种多肽。

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