Abstract
Drought stress poses a serious threat to Pinus massoniana seedling growth in southern China. Trichoderma species, as beneficial microorganisms, have been widely used in agriculture to enhance plant growth and drought tolerance, but the interaction mechanisms remain unclear. To investigate the effect of drought-resistant Trichoderma longibrachiatum inoculation on P. massoniana growth under drought stress, the plant physiological indicators and rhizosphere microbiome diversity were measured to identify Trichoderma-activated mechanisms. Trichoderma longibrachiatum inoculation significantly promoted P. massoniana growth under drought treatment, and enhanced nitrogen, phosphorus, and potassium absorption compared with those of non-inoculated seedlings. Trichoderma longibrachiatum treatment alleviated the damage to cell membranes and needle tissue structure, and significantly increased antioxidant enzyme activities, osmotic substance contents, and photosynthesis in P. massoniana in response to drought stress. Soil nutrient contents, activities of sucrase, phosphatase, and urease as well as the relative abundances of the dominant genera Burkholderia, Rhodanobacter, and Trichoderma were elevated in the rhizosphere soil of P. massoniana inoculated with T. longibrachiatum under drought stress. A network analysis showed that certain crucial dominant taxa driven by T. longibrachiatum inoculation, including Penicillium, Trichoderma, Simplicillium, Saitozyma, Burkholderia, Bradyrhizobium, Sinomonas, and Mycobacterium, had more correlations with other microorganisms in the soil. Trichoderma longibrachiatum enhanced P. massoniana seedling growth under drought stress by regulating physiological responses and soil microbial community.
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Claims 7
Claim · model-written summary
Trichoderma inoculation significantly promoted seedling growth under drought.
- Taxon
- Pinus massoniana
Pinus massonianae1 - Treatment
- Trichoderma longibrachiatum inoculatione0
- Interactor
- Trichoderma longibrachiatumTrichoderma longibrachiatume0symbiont
- Outcome
- P. massoniana growthe0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Trichoderma longibrachiatum inoculation significantly promoted P. massoniana growth under drought treatment”
e1“Pinus massoniana seedling growth”
Claim · model-written summary
Trichoderma inoculation enhanced N, P and K absorption against uninoculated seedlings.
- Taxon
- Pinus massonianaPinus massonianae2
- Treatment
- Trichoderma longibrachiatum inoculatione1
- Interactor
- Trichoderma longibrachiatumTrichoderma longibrachiatume1symbiont
- Outcome
- nitrogen, phosphorus, and potassium absorptione0
- Direction
- enhancede0
- Comparator
- non-inoculated seedlingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“enhanced nitrogen, phosphorus, and potassium absorption compared with those of non-inoculated seedlings”
e1“Trichoderma longibrachiatum inoculation significantly promoted P. massoniana growth under drought treatment”
e2“Pinus massoniana seedling growth”
Claim · model-written summary
Trichoderma alleviated cell membrane and needle tissue damage under drought.
- Taxon
- Pinus massonianaPinus massonianae1
- Treatment
- Trichoderma longibrachiatum treatmente0
- Interactor
- Trichoderma longibrachiatumTrichoderma longibrachiatume0symbiont
- Outcome
- damage to cell membranes and needle tissue structuree0
- Direction
- alleviatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Trichoderma longibrachiatum treatment alleviated the damage to cell membranes and needle tissue structure”
e1“Pinus massoniana seedling growth”
Claim · model-written summary
Trichoderma significantly increased antioxidant enzyme activity, osmotic substances and photosynthesis under drought.
- Taxon
- Pinus massonianaPinus massonianae2
- Treatment
- Trichoderma longibrachiatum treatmente1
- Interactor
- Trichoderma longibrachiatumTrichoderma longibrachiatume1symbiont
- Outcome
- antioxidant enzyme activities, osmotic substance contents, and photosynthesise0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significantly increased antioxidant enzyme activities, osmotic substance contents, and photosynthesis in P. massoniana in response to drought stress”
e1“Trichoderma longibrachiatum treatment”
e2“Pinus massoniana seedling growth”
Claim · model-written summary
Rhizosphere soil nutrient contents and enzyme activities increased with Trichoderma inoculation.
- Taxon
- Pinus massonianaPinus massonianae1
- Treatment
- inoculated with T. longibrachiatume0
- Interactor
- T. longibrachiatumTrichoderma longibrachiatume0symbiont
- Outcome
- Soil nutrient contents, activities of sucrase, phosphatase, and ureasee0
- Direction
- elevatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil nutrient contents, activities of sucrase, phosphatase, and urease as well as the relative abundances of the dominant genera Burkholderia, Rhodanobacter, and Trichoderma were elevated in the rhizosphere soil of P. massoniana inoculated with T. longibrachiatum under drought stress”
e1“Pinus massoniana seedling growth”
Claim · model-written summary
Burkholderia, Rhodanobacter and Trichoderma abundances rose in inoculated rhizosphere soil.
- Taxon
- Pinus massonianaPinus massonianae1
- Treatment
- inoculated with T. longibrachiatume0
- Interactor
- T. longibrachiatumTrichoderma longibrachiatume0symbiont
- Outcome
- relative abundances of the dominant genera Burkholderia, Rhodanobacter, and Trichodermae0
- Direction
- elevatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“relative abundances of the dominant genera Burkholderia, Rhodanobacter, and Trichoderma were elevated in the rhizosphere soil of P. massoniana inoculated with T. longibrachiatum under drought stress”
e1“Pinus massoniana seedling growth”
Claim · model-written summary
Network analysis found more microbial correlations among taxa driven by inoculation.
- Taxon
- Pinus massonianaPinus massonianae1
- Treatment
- T. longibrachiatum inoculatione0
- Interactor
- T. longibrachiatumTrichoderma longibrachiatume0symbiont
- Outcome
- correlations with other microorganisms in the soile0
- Direction
- moree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“certain crucial dominant taxa driven by T. longibrachiatum inoculation, including Penicillium, Trichoderma, Simplicillium, Saitozyma, Burkholderia, Bradyrhizobium, Sinomonas, and Mycobacterium, had more correlations with other microorganisms in the soil”
e1“Pinus massoniana seedling growth”
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Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.