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应用生态学报 ›› 2018, Vol. 29 ›› Issue (11): 3569-3576.doi: 10.13287/j.1001-9332.201811.002

• 研究报告 • 上一篇    下一篇

养分异质条件下结缕草克隆分株生长、碳水化合物及可溶性蛋白的生理整合

徐苏男, 刘艳虹, 李虹仪, 陈忠林, 李悦, 张利红*   

  1. 辽宁大学环境学院, 沈阳 110036
  • 收稿日期:2018-03-07 出版日期:2018-11-20 发布日期:2018-11-20
  • 通讯作者: *E-mail: Lihongzhang132@163.com
  • 作者简介:徐苏男, 男, 1983年生, 硕士研究生, 实验师. 主要从事植物生理生态学研究. E-mail: Xusunan1983@126.com
  • 基金资助:

    本文由国家自然科学基金项目(31470398, 31600311)资助

Physiological integration of growth, carbohydrates, and soluble protein of Zoysia japonica clonal ramets under nutrient heterogeneity

XU Su-nan, LIU Yan-hong, LI Hong-yi, CHEN Zhong-lin, LI Yue, ZHANG Li-hong   

  1. College of Environment, Liaoning University, Shenyang 110036
  • Received:2018-03-07 Online:2018-11-20 Published:2018-11-20
  • Contact: *E-mail: Lihongzhang132@163.com
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (31470398, 31600311).

摘要: 通过对连接和断开的结缕草分株进行不同的养分处理,研究了养分异质条件下结缕草克隆分株生长、碳水化合物及可溶性蛋白含量的变化.结果表明: 在养分异质条件下,处于中、高养分水平的母株可以显著提高与其相连子株的地上、地下及总生物量,高养分下分别提高32.5%、22.1%和24.8%,降低根冠比、可溶性糖及非结构性碳水化合物(NSC)含量,高养分下分别降低7.7%、15.2%和13.1%,但是对淀粉、纤维素、可溶性蛋白含量无显著影响.处于中、高养分水平的子株对与其相连的母株生长、碳水化合物及可溶性蛋白含量没有显著影响.养分异质条件下结缕草母株对子株生物量、根冠比、可溶性糖及NSC含量有明显的生理整合,其整合强度与养分梯度呈正比,而对淀粉、纤维素及可溶性蛋白含量没有显现显著的生理整合效应.子株对母株各项指标都没有显著的生理整合,结缕草母株和子株间是一种单向的生理整合.

Abstract: This study was carried out to analyze the changes of growth, the contents of carbohydrates and soluble protein of Zoysia japonica clonal ramets under nutrient heterogeneity, where the connected and disconnected ramets were treated with different nutrient levels. The results indicated that under the nutrient heterogeneity the parent ramets in middle or high nutrient levels improved the aboveground biomass, belowground biomass, and total biomass, with the enhancement of 32.5%, 22.1% and 24.8% at high nutrient level, respectively, reduced the root/shoot ratio, the contents of soluble sugar and non-structural carbohydrates (NSC), with the reduction of 7.7%, 15.2% and 13.1% in high nutrient level, respectively, but had no significant impacts on the contents of starch, cellulous, and soluble protein of the connected daughter ramets. The daughter ramets in middle and high nutrient levels had no significant impacts on the growth and the contents of carbohydrates and soluble protein of the connected parent ramets. There was a significant physiological integration effects from parent to the daughter ramets on the biomass, root/shoot, the contents of soluble sugar and NSC. The intensity of physiological integration was proportional to the nutrient gradient of ramets, but had no significant physiological integration effects on the contents of starch, cellulous and soluble protein. The daughter ramets had no physiological integration for any indicator of the parent ramets. There was a unidirectional physiological integration between parent and daughter ramets of Z. japonica.