|Table of Contents|

Effects of Arbuscular Mycorrhizal Fungi on Growth of Strawberry Under  p-hydroxybenzoic Acid Stress(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2017年14
Page:
44-50
Research Field:
Publishing date:

Info

Title:
Effects of Arbuscular Mycorrhizal Fungi on Growth of Strawberry Under  p-hydroxybenzoic Acid Stress
Author(s):
ZHU XiaoqinZHANG HanLIU ShilongPEI Dongli
(Department of Life Sciences,Shangqiu Normal University/Key Laboratory of Plant-Microbe Interactions,Shangqiu,Henan 476000)
Keywords:
strawberry(Fragaria ananassa Duch.)p-hydroxybenzoic acidarbuscular mycorrhizal fungiphotosynthesisroot systemantioxidant enzymes activity
PACS:
-
DOI:
10.11937/bfyy.20170284
Abstract:
Fragaria ananassa Duch.was used as material,the effects of arbuscular mycorrhizal (AM) fungi Rhizophagus irregularis and Funneliformis mosseae on photosynthesis,root system,and antioxidant enzymes of strawberry under p-hydroxybenzoic acid (PHBA) stress were investigated.The results showed that,under 0.5 mmol?L-1 PHBA concentration,Rhizophagus irregularis enhanced the net photosynthetic rate (Pn),stomatal conductance,intercellular CO2 concentration (Ci),and transpiration rate;Funneliformis mosseae increase Pn,Ci,and water-use efficiency.Under 0.5 mmol?L-1 PHBA concentration,Rhizophagus irregularis enhanced effective quantum yield of PSII (ФPSII),photochemical quenching coefficient(qP) and photosynthetic electron transport rate (ETR).Funneliformis mosseae increased ФPSII and ETR.Under 0.5 mmol?L-1 PHBA stress,Rhizophagus irregularis greatly improved the root system,including the root length,surface,volume,tips,forks.Under 0.5 mmol?L-1 PHBA stress,Rhizophagus irregularis and Funneliformis mosseae significantly increased the activities of superoxide dismutase,peroxidase,and catalase in strawberry root.AM fungi alleviated PHBA stress on strawberry by the higher Pn,ФPSII,ETR and greater root system,and the higher activities of antioxidant enzymes than non-mycorrhizal seedlings.Strawberry inoculated with Rhizophagus irregularis had the greater root system and higher activities of antioxidant enzymes than those of seedlings colonized with Funneliformis mosseae,it might be Rhizophagus irregularis had the higher colonization in strawberry.

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Last Update: 2017-07-25