Preprint Article Version 1 This version is not peer-reviewed

Enhancements of Arbuscular Mycorrhizal Fungi on Growth and Nitrogen Acquisition of Chrysanthemum morifolium under Salt Stress 

Version 1 : Received: 30 October 2017 / Approved: 30 October 2017 / Online: 30 October 2017 (15:32:49 CET)

How to cite: Wang, Y.; Wang, M.; Li, Y.; Wu, A.; Huang, J. Enhancements of Arbuscular Mycorrhizal Fungi on Growth and Nitrogen Acquisition of Chrysanthemum morifolium under Salt Stress . Preprints 2017, 2017100183 (doi: 10.20944/preprints201710.0183.v1). Wang, Y.; Wang, M.; Li, Y.; Wu, A.; Huang, J. Enhancements of Arbuscular Mycorrhizal Fungi on Growth and Nitrogen Acquisition of Chrysanthemum morifolium under Salt Stress . Preprints 2017, 2017100183 (doi: 10.20944/preprints201710.0183.v1).

Abstract

The study aimed to investigate the effects of colonization with two arbuscular mycorrhizal (AM) fungi, Funneliformis mosseae , Diversispora versiformis , alone and in combination on the growth and nutrient acquisition of NaCl-stressed Chrysanthemum morifolium (Hangbaiju) plants in the greenhouse experiment. Mycorrhizal and non-mycorrhizal Hangbaiju plants were grown under different salinity levels imposed by 0, 50 and 200 mM NaCl for five months, following 6 weeks of non-saline pre-treatment. The results showed that root length, shoot and root dry weight, total dry weight, shoot and root N concentration were higher in mycorrhizal than in non-mycorrhizal plants under moderate saline conditions especially with D. versiformis colonization. As salinity increased, the mycorrhizal colonization, the mycorrhizal dependence (MD) decreased. Enhancement of tissue N acquisition is probably the main mechanism underlying salt tolerance in AM plants. It is suggested that the symbiotic associations between D. versiformis fungus and C. morifolium plants may be taken as a biotechnological practice in culture.

Subject Areas

Arbuscular mycorrhiza; Chrysanthemum morifolium; N acquisition; Salt stress

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