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The endophytic fungus Trichoderma harzianum affects the growth and physiological characteristics of Camphora migao seedlings under drought stress
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Qian WANG1, Jingzhong CHEN2, Xiaofeng LIAO3, *, Yuangui XIE4, Lan ZHANG5, Manhua ZHANG1, Tianhui PENG1
Acta Microbiologica Sinica | 2025, 65(12) : 5540 - 5558
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Acta Microbiologica Sinica | 2025, 65(12): 5540-5558
• Research Article •
The endophytic fungus Trichoderma harzianum affects the growth and physiological characteristics of Camphora migao seedlings under drought stress
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Qian WANG1, Jingzhong CHEN2, Xiaofeng LIAO3, *, Yuangui XIE4, Lan ZHANG5, Manhua ZHANG1, Tianhui PENG1
Affiliations
  • 1.College of Forestry, Guizhou University, Guiyang, Guizhou, China
  • 2.College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou, China
  • 3.Guizhou Botanical Garden, Guiyang, Guizhou, China
  • 4.Guizhou Institute of Mountain Resources, Guiyang, Guizhou, China
  • 5.Guizhou Academy of Forestry, Guiyang, Guizhou, China
Published: 2025-12-04 doi: 10.13343/j.cnki.wsxb.20250423
Outline
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Objective To investigate the mechanism by which the endophytic fungus Trichoderma harzianum Rifai help the seedlings of the rare medicinal plant Camphora migao (H. W. Li) Y. Yang, Bing Liu & Zhi Yang to defend against drought stress. Methods We simulated different drought stress gradients using the potted weighing method after inoculation of C. migao seedlings with T. harzianumvia rhizosphere injection and investigated the plant growth, physiological, and biochemical indexes. Results Under different drought conditions, inoculation with T. harzianum significantly increased the growth indexes such as biomass, plant height, and root growth of C. migao seedlings, compared with the uninoculated control group. Furthermore, T. harzianum significantly increased the activities of antioxidant enzymes and the content of osmotically regulation substances, reduced the malondialdehyde content, and elevated the content of photosynthetic pigments in the seedling leaves, which effectively mitigated the drought stress effects on the growth and development of C. migao seedlings. Conclusion T. harzianum improved the physiological responses of C. migao seedlings to drought stress by regulating osmotic balance and maintaining the stability of antioxidant system.

Trichoderma harzianum  /  Camphora migao  /  drought stress  /  growth and development  /  physiological metabolism
Qian WANG, Jingzhong CHEN, Xiaofeng LIAO, Yuangui XIE, Lan ZHANG, Manhua ZHANG, Tianhui PENG. The endophytic fungus Trichoderma harzianum affects the growth and physiological characteristics of Camphora migao seedlings under drought stress[J]. Acta Microbiologica Sinica, 2025 , 65 (12) : 5540 -5558 . DOI: 10.13343/j.cnki.wsxb.20250423
Funding
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  • the Guizhou Provincial Science and Technology Support Program(QKHZC[2023]YB049)
  • the Natural Science Research Project of the Education Department of Guizhou Province (Young Science and Technology Talent Development Program)(QJJ[2024]121)
  • the General Project of Guizhou Provincial Basic Research Program (QKHJC-ZK[2025]MS176), and the Science and Technology Project of Guizhou Provincial Forestry Bureau(QLKH[2025]03)
Appendix
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Year 2025 volume 65 Issue 12
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168
62
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Article Info
doi: 10.13343/j.cnki.wsxb.20250423
  • Receive Date：2025-06-02
  • Online Date：2025-12-08
  • Published：2025-12-04
Article Data
Affiliations
History
  • Received：2025-06-02
  • Accepted：2025-07-17
Funding
the Guizhou Provincial Science and Technology Support Program(QKHZC[2023]YB049)
the Natural Science Research Project of the Education Department of Guizhou Province (Young Science and Technology Talent Development Program)(QJJ[2024]121)
the General Project of Guizhou Provincial Basic Research Program (QKHJC-ZK[2025]MS176), and the Science and Technology Project of Guizhou Provincial Forestry Bureau(QLKH[2025]03)
Affiliations
    1.College of Forestry, Guizhou University, Guiyang, Guizhou, China
    2.College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou, China
    3.Guizhou Botanical Garden, Guiyang, Guizhou, China
    4.Guizhou Institute of Mountain Resources, Guiyang, Guizhou, China
    5.Guizhou Academy of Forestry, Guiyang, Guizhou, China

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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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