• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>SpringerPlus >Artemisia dominant species succession relating to the soil moisture decrease in abandoned land of the Loess Plateau (China): comparative study of drought-adaptive characteristics
【2h】

Artemisia dominant species succession relating to the soil moisture decrease in abandoned land of the Loess Plateau (China): comparative study of drought-adaptive characteristics

机译：黄土高原荒地土壤水分减少与蒿的优势种演替（干旱适应特征比较研究）

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Artemisia scoparia, Artemisia sacrorum and Artemisiagiraldii were three dominant Artemisia species which successive grew in the secondary succession on abandoned land of the Loess Plateau. The succession accompanied the soil moisture steady decrease with field age after their abandonment. To elucidate the relationship between the Artemisia species succession and their drought-adaptation, three dominant species and a contrastive species Artemisia annua (mesophyte), were selected to compare their drought-resistant characteristics, including morphological and anatomical traits of leaf and root. Then physiological responses were investigated in mature plants after drought treatment. The results indicated that three dominant species leaf presented drought-adaptive structures, such as bushy trichomes, transitional or isolateral leaf cells, thick cuticles and epidermal cells. However, A. annua had no leaf traits involved in drought-adaptation. In addition, A. sacrorum and A. giraldii contained large root systems, while A. scoparia and A. annua utilized succulent roots. The physiological responses to drought suggested that A. giraldii had strong regulation in water using strategy, growth, as well as superoxide dismutase and catalase activity. A. sacrorum and A. giraldii could maintain high ascorbate peroxidase activity and malondialdehyde content, while A. scoparia and A. giraldii presented higher peroxidase activity, ascorbate and soluble sugar content. A. annua exhibited high proline and carotenoid contents under drought. The drought-resistant of the four Artemisia species presented the order of A. giraldii > A. sacrorum > A. scoparia > A. annua, which was consistent with their succession on abandoned land.
机译：黄花蒿，sa蒿和青蒿是三个主要的蒿种，它们在黄土高原荒地的次生演替阶段连续生长。演替后，随着田间年龄的增加，土壤水分稳定下降。为了阐明蒿属物种演替与其适应干旱之间的关系，选择了三个优势种和一个对比属种（蒿属）来比较其抗旱特性，包括叶和根的形态和解剖学特征。然后研究干旱处理后成熟植物的生理反应。结果表明，三种优势种叶片均表现出干旱适应性结构，如浓密的毛状体，过渡或孤立叶细胞，厚表皮和表皮细胞。然而，A。annua没有与干旱适应有关的叶片性状。此外，sa菜和基拉迪氏菌具有较大的根系，而景天和金盏花则利用肉质根。对干旱的生理反应表明，吉拉德酵母在水的使用策略，生长以及超氧化物歧化酶和过氧化氢酶活性方面具有很强的调节作用。 sa曲菌和吉拉德曲霉可以维持高抗坏血酸过氧化物酶活性和丙二醛含量，而景天曲霉和 A。 Giraldii 的过氧化物酶活性，抗坏血酸和可溶性糖含量较高。 A。干旱条件下，花环中的脯氨酸和类胡萝卜素含量较高。四种蒿植物的抗旱性表现为 A顺序。 giraldii A。 cro A。景天 A。 annua ，这与他们在荒地上的继承一致。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号