低温胁迫对黑木相思叶状柄解剖结构与质膜透性的影响

四川农业大学学报 ›› 2011, Vol. 29 ›› Issue (02): 173-178.

低温胁迫对黑木相思叶状柄解剖结构与质膜透性的影响

阮少宁

福建农林大学

收稿日期:2011-05-04 修回日期:2011-05-30 出版日期:2011-06-30 发布日期:2011-06-30
通讯作者: 阮少宁

Effects of Low Temperature on Phyllode Anatomical Structure and Membrane Permeability of Acacia melanoxylon

roun shaoning

Fujian Agriculture and Forestry Univeresiry

Received:2011-05-04 Revised:2011-05-30 Online:2011-06-30 Published:2011-06-30
Contact: roun shaoning

摘要/Abstract

摘要： 采用石蜡制片法通过对低温胁迫下黑木相思叶状柄的显微结构特征进行研究，应用回归分析及相关分析法，探讨不同处理下叶状柄解剖结构与相对电导率的变化趋势及相互关系，为黑木相思的引种栽培及抗寒育种提供依据。结果表明：叶状柄在结构上表现出耐寒、耐旱、强光适应的特点；所有解剖结构指标均与相对电导率呈负相关，其中CTR是影响相对电导率主要因素。通过LT50、变异系数变化、方差分析及显微观察，综合判定黑木相思低温敏感区约为-3.5℃。

关键词: 关键词：黑木相思, 寒胁迫, 叶状柄解剖结构；相对电导率；

Abstract: Study on microstructure of of phyllode anatomical of Acacia melanoxylon under cold-stress with paraffin section method. Discuss the trend of and relationship between phyllode anatomical structure and relative electric conductivity through regression analysis and correlation analysis in order to provide guidance for plant introduction and breeding of cold-resistant Acacia melanoxylon.The results show that it has displayed the characteristics of cold-resistance and tolerance for drought and intense sunlight.Furthermore, negative correlation between indicators of phyllode anatomical structure and relative electric conductivity was found .The main factors influencing relative conductivity are CTR and palisade tissue thickness. Through LT50, variation of mutation coefficient, variance analysis and microscopic section observation, it is concluded that Acacia melanoxylon is temperature-sensitive when it is exposed to environment at a temperature of about -3.5℃.

Key words: Key words: Acacia melanoxylon, cold stress, phyllode anatomical structure；relative electric conductivity；

阮少宁. 低温胁迫对黑木相思叶状柄解剖结构与质膜透性的影响[J]. 四川农业大学学报, 2011, 29(02): 173-178.

roun shaoning. Effects of Low Temperature on Phyllode Anatomical Structure and Membrane Permeability of Acacia melanoxylon[J]. jsau, 2011, 29(02): 173-178.