|Table of Contents|

Taming of High-temperature-tolerant Strains of Stropharia rugosoannulata and Screening of Superior Strains

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2026年7
Page:
55-61
Research Field:
Publishing date:

Info

Title:
Taming of High-temperature-tolerant Strains of Stropharia rugosoannulata and Screening of Superior Strains
Author(s):
YAN Zongshan; YANG Xianzong; LUAN Qianqian; LIN Yi; SUN Haochen; ZHANG Xiaoyang
(Gansu Academy of Agricultural Engineering and Technology，Lanzhou,Gansu 730030)
Keywords:
Stropharia rugosoannulata;  high-temperature tolerance; strain; taming
PACS:
S646
DOI:
10.11937/bfyy.20253359
Abstract:
Taking six Stropharia rugosoannulata strains (DQ1，DQ8，LS1，Golden Stropharia，CD1，CD2) as test materials，a progressive gradient high-temperature acclimation method (25 ℃ (control) → 28 ℃ → 31 ℃ → 34 ℃) was employed to study mycelial growth rate，mycelial vigor，mycelial dry mass，post-high-temperature stress recovery capacity，and high-temperature tolerance characteristics of each strain,in order to overcome temperature limitations on Stropharia rugosoannulata mycelial growth，screen superior strains suitable for high-temperature environments (28-34 ℃)，and provide reference for cultivating Stropharia rugosoannulata in high-temperature regions and establishing year-round production systems.The results showed that as acclimation temperature increased，mycelial growth of all six strains was inhibited，but the degree of inhibition varied significantly (P<0.05).During the severe high-temperature acclimation stage at 34 ℃，strains DQ1 and DQ8 performed the best，with mycelial growth rates reaching 0.43 cm·d-1 and 0.41 cm·d-1，respectively，significantly higher than other strains；mycelial vigor remained at level 4 (dense and brown-free)，with mycelial dry masses of 0.82 g·(100mL)-1 and 0.79 g·(100mL)-1；after 34 ℃ stress and transfer to 25 ℃ cultivation for 24 hours，both strains achieved 100% mycelial recovery.Strains LS1 and Golden stropharia exhibited severe mycelial browning and growth stagnation above 31 ℃，while strains CD1 and CD2 showed moderate high-temperature tolerance.In conclusion，strains DQ1 and DQ8 demonstrated outstanding high-temperature resistance and could be selected as optimal strains for Stropharia rugosoannulata mycelial cultivation in high-temperature environments.

References:

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Last Update: 2026-04-14