|Table of Contents|

Effects of Two Endophytic Fungi on Drought Resistance of Lolium perenne and Poa pratensis

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2024年21
Page:
52-60
Research Field:
Publishing date:

Info

Title:
Effects of Two Endophytic Fungi on Drought Resistance of Lolium perenne and Poa pratensis
Author(s):
YANG Mingguo1; LIU Shuwen1; LU Junjia1; MA Yunqiang2; GU Xu3
(1.Landscape Architecture and Horticulture Sciences College，Southwest Forestry University,Kunming,Yunnan 650224;2.Key Laboratory of Forest Disaster Warning and Control in Yunnan Province,Southwest Forestry University，Kunming,Yunnan 650233;3.Yunnan Academy of Biodiversity，Kunming,Yunnan 650233)
Keywords:
endophytic fungi; identification; drought resistance; Lolium perenne; Poa pratensis
PACS:
S 543+.6
DOI:
10.11937/bfyy.20241052
Abstract:
Endophytic fungi JG2 and JJ12, Lolium perenne and Poa pratensis were used as the test materials.The endophytic fungi JG2 and JJ12 were identified by biological identification and morphological observation.The antioxidant capacity of strains JG2 and JJ12 was determined by total antioxidant capacity (T-AOC) and free radical scavenging capacity (DPPH).Through pot experiment in greenhouse，the physiological and biochemical indexes of Lolium perenne and Poa pratensis were determined under severe drought stress after irrigation with bacterial liquid.The effects of endophytic fungi JG2 and JJ12 on physiological and biochemical indexes of Lolium perenne and Poa pratensis under severe drought stress were studied，in order to provide reference for the development and utilization of drought-resistant microbial agents for Lolium perenne and Poa pratensis.The results showed that strain JG2 was identified as Talaromyces erythromellis, and strain JJ12 was identified as Hypoxylon pulicicum.Both JG2 and JJ12 had good antioxidant activity.Under the severe drought stress of 21 days，the treatments of two endophytic fungal fermentations could improve the drought tolerance of Lolium perenne and Poa pratensis，and significantly increase the contents of chlorophyll，soluble protein，proline (Pro) and the activity of superoxide dismutase (SOD) (P<0.05).Moreover，strain JG2 improved the drought tolerance of Lolium perenne and Poa pratensis better than strain JJ12.It showed that both strains JG2 and JJ12 had good potential for development and utilization as drought-resistant microbial agents，and the development and utilization potential of strain JG2 was better than that of strain JJ12.

References:

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Last Update: 2024-11-21