[1]郑桂灵,李鹏.空气凤梨对温度逆境的交叉适应[J].北方园艺,2015,39(10):82-86.[doi:10.11937/bfyy.201510020]
　ZHENG Gui-ling,LI Peng.Cross-adaptation of Two Epiphytic Tillandsia Species to Temperature Stress[J].Northern Horticulture,2015,39(10):82-86.[doi:10.11937/bfyy.201510020]
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空气凤梨对温度逆境的交叉适应

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 第39卷 期数: 2015年10 页码: 82-86 栏目: 出版日期: 2015-05-30
Title:
Cross-adaptation of Two Epiphytic Tillandsia Species to Temperature Stress
文章编号:
1001-0009（2015）10-0082-05
作者:
郑桂灵; 李鹏
（青岛农业大学 资源与环境学院，山东 青岛 266109）
Author(s):
ZHENG Gui-ling; LI Peng
(College of Resource and Environment，Qingdao Agricultural University，Qingdao，Shandong 266109)
关键词:
空气植物; 交叉适应; 温度; 胁迫
Keywords:
air plant; cross adaptation; temperature; stress
分类号:
S 682.39
DOI:
10.11937/bfyy.201510020
文献标志码:
A
摘要:
以硬叶空凤（Tillandsia stricta ‘Hard leaf’）与贝可丽空凤（Tillandsia brachycaulos‘Multiflora’）为试材，研究了温度逆境处理对空气凤梨形态变化及可溶性糖含量、脯氨酸含量、超氧化物歧化酶（SOD）活性、过氧化物酶（POD）活性、丙二醛（MDA）含量、可溶性蛋白质含量等生理生化指标的影响。结果表明：2种空气凤梨对低温和高温均有一定的耐受性，但在-5℃低温和45℃高温条件下，2种空气凤梨失绿、萎蔫，说明这2个温度已达到或超过空气凤梨生长的临界温度。但是，不论在低温或高温环境下，2种空气凤梨体内可溶性糖含量、可溶性蛋白质含量、脯氨酸含量、SOD活性、POD活性、MDA含量等产生相似变化，暗示它们对2种相对立的胁迫环境（低温与高温）具有相似的抗性机制，即交叉适应。
Abstract:
Taking Tillandsia stricta ‘Hard leaf’and Tillandsia brachycaulos‘Multiflora’as the materials，effect of temperature stress on plant morphological and physiological characters including contents of soluble sugars，soluble proteins，proline，the activities of SOD，POD and MDA content were studied.The results showed that two Tillandsia species were tolerant to low or high temperature within 5-35℃.However，under the stress of -5℃ and 45℃，two Tillandsia species began to wither，which suggested that these two temperatures were almost to or beyond the critical temperature.Moreover，contents of soluble sugars，soluble proteins，prolines，the activities of SOD，POD and MDA content decreased or increased synchronically under the low and high temperature，which indicated that two species were cross adapted to temperature stress，i.e.cross-adaptation.

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相似文献/References:

[1]郑桂灵,王思维,李 鹏.空气凤梨对气体污染物的监测和修复[J].北方园艺,2011,35(04):0.[doi:10.11937/bfyy.201104076]
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备注/Memo

第一作者简介：郑桂灵（1980-），女，博士，副教授，研究方向为生物修复。E-mail：zglibcas@aliyun.com.

基金项目：青岛农业大学高层次人才科研基金资助项目（1113351）。

更新日期/Last Update: 2015-08-07