Abstract
Tuber indicum has been extensively investigated in the fields of ecology, mycorrhizal synthesis with various plant species, and cultivation. Its impacts on plant physiological and metabolic responses under different water regimes remain unclear. Here, T. indicum colonized Pinus armandii seedlings were used to assess plant physiological responses, rhizosphere metabolomic profiles, and microbial community dynamics under differential water regimes. The results showed that T. indicum colonization significantly increased the contents of chlorophyll a and total pigments, but decreased the malondialdehyde content in the leaves under moderate drought stress. Under moderate and severe drought stresses, the diversity of the mycorrhizosphere bacterial community in the T. indicum - colonized group was significantly lower than that in the control group. Meanwhile, the bacterial community structures were similar under various drought conditions. Metabolic analysis revealed that carbohydrates and their derivatives were the most upregulated, while amino acids and their derivatives were the most downregulated differential expressed metabolites in T. indicum - colonized seedlings, compared to the control group. The relative abundance of Nocardioides albus has a significant positive correlation with trans-2-hexenal, and trans-2-hexenal shows a significant negative correlation with the malondialdehyde content and a significant positive correlation with the content of photosynthetic pigments, implying that N. albus might play an important role in regulating plant drought tolerance. Overall, these results suggest that T. indicum colonization could modulate the host plant’s physiological, mycorrhizosphere bacterial community and metabolic responses to enhance plant drought tolerance. These findings support the application of T. indicum mycorrhizal seedlings in drought-prone areas for ecological restoration and truffle cultivation.
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Claims 11
Claim · model-written summary
T. indicum colonization increased leaf chlorophyll a and total pigments under moderate drought.
- Taxon
- Pinus armandii
Pinus armandiit0 - Organ / stage
- leavese0
- Treatment
- T. indicum colonizatione0
- Interactor
- T. indicum
Tuber indicume0symbiont - Outcome
- contents of chlorophyll a and total pigmentse0
- Direction
- increasede0
- Qualifier
- moderate drought stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“T. indicum colonization significantly increased the contents of chlorophyll a and total pigments, but decreased the malondialdehyde content in the leaves under moderate drought stress”
t0“Pinus armandii”
Claim · model-written summary
T. indicum colonization decreased leaf malondialdehyde under moderate drought.
- Taxon
- Pinus armandiiPinus armandiit0
- Treatment
- T. indicum colonizatione0
- Interactor
- T. indicumTuber indicume0symbiont
- Outcome
- malondialdehyde content in the leavese0
- Direction
- decreasede0
- Qualifier
- moderate drought stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“T. indicum colonization significantly increased the contents of chlorophyll a and total pigments, but decreased the malondialdehyde content in the leaves under moderate drought stress”
t0“Pinus armandii”
Claim · model-written summary
T. indicum colonization reduced mycorrhizosphere bacterial diversity under moderate and severe drought.
- Taxon
- Pinus armandiiPinus armandiit0
- Treatment
- T. indicum - colonized groupe0
- Interactor
- T. indicumTuber indicume0symbiont
- Outcome
- diversity of the mycorrhizosphere bacterial communitye0
- Direction
- lowere0
- Qualifier
- moderate and severe drought stressese0
- Comparator
- control groupe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under moderate and severe drought stresses, the diversity of the mycorrhizosphere bacterial community in the T. indicum - colonized group was significantly lower than that in the control group”
t0“Pinus armandii”
Claim · model-written summary
Bacterial community structures were similar across drought conditions.
- Taxon
- Pinus armandiiPinus armandiit0
- Outcome
- bacterial community structurese0
- Direction
- similare0
- Qualifier
- various drought conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the bacterial community structures were similar under various drought conditions”
t0“Pinus armandii”
Claim · model-written summary
Carbohydrates and derivatives were the most upregulated metabolites in colonized seedlings.
- Taxon
- Pinus armandiiPinus armandiit0
- Treatment
- T. indicum - colonized seedlingse0
- Interactor
- T. indicumTuber indicume0symbiont
- Outcome
- carbohydrates and their derivativese0
- Direction
- most upregulatede0
- Comparator
- control groupe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“carbohydrates and their derivatives were the most upregulated, while amino acids and their derivatives were the most downregulated differential expressed metabolites in T. indicum - colonized seedlings, compared to the control group”
t0“Pinus armandii”
Claim · model-written summary
Amino acids and derivatives were the most downregulated metabolites in colonized seedlings.
- Taxon
- Pinus armandiiPinus armandiit0
- Treatment
- T. indicum - colonized seedlingse0
- Interactor
- T. indicumTuber indicume0symbiont
- Outcome
- amino acids and their derivativese0
- Direction
- most downregulatede0
- Comparator
- control groupe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“carbohydrates and their derivatives were the most upregulated, while amino acids and their derivatives were the most downregulated differential expressed metabolites in T. indicum - colonized seedlings, compared to the control group”
t0“Pinus armandii”
Claim · model-written summary
Nocardioides albus abundance was positively correlated with trans-2-hexenal.
- Taxon
- Pinus armandiiPinus armandiit0
- Interactor
- Nocardioides albusNocardioides albuse0symbiont
- Compound
- trans-2-hexenale0
- Outcome
- relative abundance of Nocardioides albuse0
- Direction
- positive correlatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The relative abundance of Nocardioides albus has a significant positive correlation with trans-2-hexenal”
t0“Pinus armandii”
Claim · model-written summary
Trans-2-hexenal correlated negatively with leaf malondialdehyde.
- Taxon
- Pinus armandiiPinus armandiit0
- Compound
- trans-2-hexenale0
- Outcome
- malondialdehyde contente0
- Direction
- negative correlatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“trans-2-hexenal shows a significant negative correlation with the malondialdehyde content”
t0“Pinus armandii”
Claim · model-written summary
Trans-2-hexenal correlated positively with photosynthetic pigment content.
- Taxon
- Pinus armandiiPinus armandiit0
- Compound
- trans-2-hexenale0
- Outcome
- content of photosynthetic pigmentse0
- Direction
- positive correlatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“trans-2-hexenal shows a significant negative correlation with the malondialdehyde content and a significant positive correlation with the content of photosynthetic pigments”
t0“Pinus armandii”
Claim · model-written summary
The authors infer N. albus may regulate plant drought tolerance.
- Taxon
- Pinus armandiiPinus armandiit0
- Interactor
- N. albusNocardioides albuse0symbiont
- Outcome
- plant drought tolerancee0
- Qualifier
- might play an important rolee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N. albus might play an important role in regulating plant drought tolerance”
t0“Pinus armandii”
Claim · model-written summary
The authors suggest T. indicum mycorrhizal seedlings for restoration and truffle cultivation in drought-prone areas.
- Taxon
- Pinus armandiiPinus armandiit0
- Interactor
- T. indicumTuber indicume0symbiont
- Outcome
- application of T. indicum mycorrhizal seedlings in drought-prone areas for ecological restoration and truffle cultivatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of T. indicum mycorrhizal seedlings in drought-prone areas for ecological restoration and truffle cultivation”
t0“Pinus armandii”