Abstract
ABSTRACT Peanut ( Arachis hypogaea L.) is an important cash and oil seed crop, mostly distributed in arid and semi‐arid areas. In recent years, due to the influence of atmospheric circulation anomalies and other factors, drought has become frequent and increasingly serious in China. This has posed serious challenges to peanut production. The objective of this study was to investigate the potential of the endophytic fungus Piriformospora indica to form a symbiotic relationship with peanut plants and to evaluate the drought tolerance of P. indica ‐colonized peanut plants subjected to a simulated drought stress treatment using 20% polyethylene glycol 6000 (PEG6000). The endophytic fungus P. indica affected the physiological characteristics of the host plant by colonizing the plant roots, thereby conferring greater resistance to drought stress. This fungus strongly colonized the roots of peanuts and was found to enhance root activity after 24 h of P. indica colonization under PEG6000. Catalase (CAT) and peroxidase (POD) activities were increased at 24 h in peanut leaves colonized with P. indica . Expression of drought‐related genes, such as AhNCED1 , AhP5CS , and DREB2A was upregulated at 24 h of P. indica colonization. In addition, after PEG6000 treatment, proline, soluble protein, and abscisic acid (ABA) concentrations in plants were increased, while the accumulation of malondialdehyde (MDA), and hydrogen peroxide (H 2 O 2 ) was decreased in P. indica colonized peanut. In conclusion, P. indica mediated peanut plant protection against the detrimental effects of drought resulted from enhanced antioxidant enzyme activities, and the upregulated expression of drought‐related genes for lower membrane damage.
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Claims 8
Claim · model-written summary
P. indica colonization of peanut roots conferred greater resistance to drought stress.
- Taxon
- Peanut
Arachis hypogaeae0 - Treatment
- colonizing the plant rootse1
- Interactor
- P. indicaSerendipita indicae1symbiont
- Outcome
- resistance to drought stresse1
- Direction
- greatere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Peanut ( Arachis hypogaea L.)”
e1“The endophytic fungus P. indica affected the physiological characteristics of the host plant by colonizing the plant roots, thereby conferring greater resistance to drought stress”
Claim · model-written summary
The endophytic fungus P. indica strongly colonized the roots of peanut.
- Taxon
- PeanutArachis hypogaeae0
- Interactor
- endophytic fungus Piriformospora indicaSerendipita indicae3symbiont
- Outcome
- colonized the rootse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Peanut ( Arachis hypogaea L.)”
e2“This fungus strongly colonized the roots of peanuts”
e3“endophytic fungus Piriformospora indica”
Claim · model-written summary
P. indica colonization increased root activity in peanut after 24 h under PEG6000.
- Taxon
- PeanutArachis hypogaeae0
- Treatment
- P. indica colonizatione4
- Interactor
- P. indicaSerendipita indicae4symbiont
- Outcome
- root activitye4
- Direction
- enhancee4
- Qualifier
- under PEG6000e4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Peanut ( Arachis hypogaea L.)”
e4“enhance root activity after 24 h of P. indica colonization under PEG6000”
Claim · model-written summary
P. indica colonization increased catalase and peroxidase activities in peanut leaves at 24 h.
- Taxon
- PeanutArachis hypogaeae0
- Organ / stage
- leavese5
- Treatment
- colonized with P. indicae5
- Interactor
- P. indicaSerendipita indicae5symbiont
- Outcome
- Catalase (CAT) and peroxidase (POD) activitiese5
- Direction
- increasede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Peanut ( Arachis hypogaea L.)”
e5“Catalase (CAT) and peroxidase (POD) activities were increased at 24 h in peanut leaves colonized with P. indica”
Claim · model-written summary
P. indica colonization upregulated expression of the drought-related genes AhNCED1, AhP5CS and DREB2A in peanut at 24 h.
- Taxon
- PeanutArachis hypogaeae0
- Treatment
- P. indica colonizatione6
- Interactor
- P. indicaSerendipita indicae6symbiont
- Gene
- AhNCED1 , AhP5CS , and DREB2Ae6
- Outcome
- Expression of drought‐related genese6
- Direction
- upregulatede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Peanut ( Arachis hypogaea L.)”
e6“Expression of drought‐related genes, such as AhNCED1 , AhP5CS , and DREB2A was upregulated at 24 h of P. indica colonization”
Claim · model-written summary
After PEG6000 treatment, proline, soluble protein and abscisic acid concentrations in peanut plants increased.
- Taxon
- PeanutArachis hypogaeae0
- Treatment
- PEG6000 treatmente7
- Outcome
- proline, soluble protein, and abscisic acid (ABA) concentrationse7
- Direction
- increasede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Peanut ( Arachis hypogaea L.)”
e7“after PEG6000 treatment, proline, soluble protein, and abscisic acid (ABA) concentrations in plants were increased”
Claim · model-written summary
In P. indica colonized peanut, malondialdehyde and hydrogen peroxide accumulation decreased.
- Taxon
- peanutArachis hypogaeae7
- Treatment
- P. indica colonizede7
- Interactor
- P. indicaSerendipita indicae7symbiont
- Outcome
- accumulation of malondialdehyde (MDA), and hydrogen peroxide (H 2 O 2 )e7
- Direction
- decreasede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“while the accumulation of malondialdehyde (MDA), and hydrogen peroxide (H 2 O 2 ) was decreased in P. indica colonized peanut”
Claim · model-written summary
P. indica mediated peanut protection against the detrimental effects of drought, which resulted from enhanced antioxidant enzyme activities.
- Taxon
- peanutArachis hypogaeae7
- Interactor
- P. indicaSerendipita indicae7symbiont
- Outcome
- protection against the detrimental effects of droughte7
- Qualifier
- enhanced antioxidant enzyme activitiese7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“P. indica mediated peanut plant protection against the detrimental effects of drought resulted from enhanced antioxidant enzyme activities”
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