丛枝菌根真菌(AMF)对沙棘抗旱性的影响

林业科学 ›› 1999, Vol. 35 ›› Issue (3): 48-52.

丛枝菌根真菌(AMF)对沙棘抗旱性的影响

唐明¹,陈辉¹,商鸿生²

1. 西北林学院杨陵 712100
2. 西北农业大学杨陵 712100

收稿日期:1998-02-28 出版日期:1999-05-25 发布日期:1999-05-25
基金资助:
国家自然科学基金

EFFECTS OF ARBUSCULAR MYCORRHIZAL FUNGI(AMF) ON HIPPOPHAE RHAMNOIDES DROUGHT-RESISTANCE

Ming Tang¹,Hui Chen¹,Hongsheng Shang²

1. Northwestern College of Forestry Yangling 712100
2. Northwestern Agricultural University Yangling 712100

Received:1998-02-28 Online:1999-05-25 Published:1999-05-25
Supported by:
国家自然科学基金

摘要/Abstract

摘要：

采用组织化学技术研究了水分胁迫条件下丛枝菌根真菌中碱性磷酸酶活性对宿主沙棘抗旱性的影响。结果表明,菌根内总菌丝量>功能菌丝量>活性菌丝量,总菌丝和功能菌丝是活性菌丝的基础,对宿主生物量积累起重要作用的是活性菌丝;具有磷酸酶活性的菌丝对沙棘生长和抗旱作用最强,随着碱性磷酸酶活性的提高,宿主林木鲜重增加,萎蔫系数降低。活性菌丝通过直接参与宿主林木磷素营养物质的交换,改善林木养分和水分状况,提高林木抗旱性。

关键词: 丛枝菌根真菌(AMF), 碱性磷酸酶, 沙棘, 抗旱性

Abstract:

The effects of AMF alkaline phosphatase(ALP)activities on Hippophae rhamnoides drough-resistance under water stress condition were studied with the histochemical techniques.The result shows in the mycorrhizae the total hyphae and functional hyphae form the base for the active hyphae,and amounts follow the order of total hyphae > functional hyphae > active hyphae.Active hyphae play an important role in the biomass accumulation of the hosts; the hyphae with phosphatase activity have a positively strong effect on Hippophae rhamnoides growth and its drought-resistance,and with the rise of ALP,the fresh weight of the host trees increases and wilting coefficient lowers.The direct participation of ALP in the exchanges of P nutrient substance of host trees can improve the nutrient and water condition,and raise the drought-resistance of the trees as well.

Key words: Arbuscular mycorrhizal fungi(AMF), Alkaline phosphatase(ALP), Hippophae rhamnoides, Drought-resistance

唐明,陈辉,商鸿生. 丛枝菌根真菌(AMF)对沙棘抗旱性的影响[J]. 林业科学, 1999, 35(3): 48-52.

Ming Tang,Hui Chen,Hongsheng Shang. EFFECTS OF ARBUSCULAR MYCORRHIZAL FUNGI(AMF) ON HIPPOPHAE RHAMNOIDES DROUGHT-RESISTANCE[J]. Scientia Silvae Sinicae, 1999, 35(3): 48-52.

图/表 5

参考文献 0

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