Effects of AM Fungi on the Growth and Drought Resistance of Endangered Shrub Tetraena mongolica Maxim.and Zygophyllumx anthoxylum Maxim.

doi:10.7668/hbnxb.2014.03.031

Abstract

Abstract: With pot experiment in a greenhouse, the paper studied the effects of Arbuscular mycorrhizal Fungi on growth and drought tolerance of Tetraena Mongolica Maxim.and Zygophyllumx anthoxylum Maxim.under drought stress.The results showed that:AMF significantly increased survival rate of Tetraena mongolica Maxim.Under different AMF treatments, Tetraena mongolica had no significant effect on root fresh weight and leaf number, while Zygophyllumx anthoxylum had significant effect on leaf number.AMF improved growth of Tetraena mongolica and Zygophyllumx anthoxylum, plant height and fresh weight of Tetraena mongolica and Zygophyllumx anthoxylum was no significant difference between drought stress, colonization and well water, no-colonization.Under AM fungal colonization, the activity of SOD and CAT in Tetraena mongolica was improved, while the activity of POD was decreased.But the activity of SOD, POD and CAT in Zygophyllumx anthoxylum was improved.The results indicated that Tetraena mongolica adapted to drought stress by increasing the AMF infection rate and coordinating antioxidant enzyme system, while Zygophyllumx anthoxylum adapted to drought stress by reducing the number of leaves and increasing the activity of antioxidant enzyme system.Therefore, by separating and screening AMF, using AMF resources to protect endangered Tetraena mongolica is of great significance.

Key words: AMF, Drought stress, Tetraena mongolica, Zygophyllumx anthoxylum

CLC Number:

Q945

WANG Tong-zhi, BAO Yu-ying. Effects of AM Fungi on the Growth and Drought Resistance of Endangered Shrub Tetraena mongolica Maxim.and Zygophyllumx anthoxylum Maxim.[J]. journal1, 2014, 29(3): 170-175. doi: 10.7668/hbnxb.2014.03.031.

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http://www.hbnxb.net/EN/Y2014/V29/I3/170

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