Abstract
Piriformospora indica is a root endophytic fungus,which is able to establish beneficial symbiotic relationships with plant,and it can promote the growth of plants,enhance crop yield.In order to study the impact of P.indicaon growth and development of rice,We analyzed the differences in plant height,biomass,tillering,heading,panicle properties,chlorophyll content,nitrate reductase(NR)activity,root activity and expression of growth-related genes between nonglutinous rice colonized and un-colonized by P.indica.The results showed that the plant height,biomass of shoot,the number of tillers,root activity and NR activity of rice colonized by P.indica were significantly higher than that in un-colonized ones.Rice colonized by P.indicaheaded 4-6days earlier than the un-colonized rice.The contents of chlorophyll increased by 19.77% and 17.89% respectively after P.indica treatment for 3and 4weeks.RT-PCR analysis showed that the expression of auxin-regulated genes OsIAA13 and YUCCA were up-regulated in leaves of rice colonized by P.indica,being 1.49 and 1.30 folds as high as that of control plants.The expression of NRR,which negatively regulates the growth of rice,was 58% as high as that of control plants.The results indicated that the growth promotion of rice conferred by P.indica was relevant to chlorophyll content,NR activity,root activity and expression of growth-related genes.P.indica may promote the growth of rice through improving photosynthetic rate,enhancing mineral nutrition absorption and utilization and inducing auxin secretion.
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Claims 8
Claim · model-written summary
Colonized rice had significantly greater height, shoot biomass, tiller number, root activity and nitrate reductase activity than uncolonized rice.
- Taxon
- rice
Oryza sativae0 - Treatment
- colonized by P.indicae0
- Interactor
- P.indicaSerendipita indicae0symbiont
- Outcome
- plant height,biomass of shoot,the number of tillers,root activity and NR activitye0
- Direction
- highere0
- Comparator
- un-colonized onese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the plant height,biomass of shoot,the number of tillers,root activity and NR activity of rice colonized by P.indica were significantly higher than that in un-colonized ones”
Claim · model-written summary
Chlorophyll content increased 19.77% after three weeks of P. indica treatment.
- Taxon
- riceOryza sativae1
- Treatment
- P.indica treatmente0
- Interactor
- P.indicaSerendipita indicae0symbiont
- Outcome
- contents of chlorophylle0
- Direction
- increasede0
- Value
- 19.77%e0
- Qualifier
- 3and 4weekse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The contents of chlorophyll increased by 19.77% and 17.89% respectively after P.indica treatment for 3and 4weeks”
e1“differences in plant height,biomass,tillering,heading,panicle properties,chlorophyll content,nitrate reductase(NR)activity,root activity and expression of growth-related genes between nonglutinous rice colonized and un-colonized by P.indica”
Claim · model-written summary
Chlorophyll content increased 17.89% after four weeks of P. indica treatment.
- Taxon
- riceOryza sativae1
- Treatment
- P.indica treatmente0
- Interactor
- P.indicaSerendipita indicae0symbiont
- Outcome
- contents of chlorophylle0
- Direction
- increasede0
- Value
- 17.89%e0
- Qualifier
- 4weekse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The contents of chlorophyll increased by 19.77% and 17.89% respectively after P.indica treatment for 3and 4weeks”
e1“differences in plant height,biomass,tillering,heading,panicle properties,chlorophyll content,nitrate reductase(NR)activity,root activity and expression of growth-related genes between nonglutinous rice colonized and un-colonized by P.indica”
Claim · model-written summary
OsIAA13 expression in leaves of colonized rice was 1.49 times control.
- Taxon
- riceOryza sativae0
- Organ / stage
- leavese0
- Treatment
- colonized by P.indicae0
- Interactor
- P.indicaSerendipita indicae0symbiont
- Gene
- OsIAA13e0
- Outcome
- expression of auxin-regulated genese0
- Direction
- up-regulatede0
- Value
- 1.49e0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“expression of auxin-regulated genes OsIAA13 and YUCCA were up-regulated in leaves of rice colonized by P.indica,being 1.49 and 1.30 folds as high as that of control plants”
Claim · model-written summary
YUCCA expression in leaves of colonized rice was 1.30 times control.
- Taxon
- riceOryza sativae0
- Organ / stage
- leavese0
- Treatment
- colonized by P.indicae0
- Interactor
- P.indicaSerendipita indicae0symbiont
- Gene
- YUCCAe0
- Outcome
- expression of auxin-regulated genese0
- Direction
- up-regulatede0
- Value
- 1.30e0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“expression of auxin-regulated genes OsIAA13 and YUCCA were up-regulated in leaves of rice colonized by P.indica,being 1.49 and 1.30 folds as high as that of control plants”
Claim · model-written summary
NRR expression in colonized rice was 58% of control expression.
- Taxon
- riceOryza sativae0
- Treatment
- colonized by P.indicae1
- Interactor
- P.indicaSerendipita indicae1symbiont
- Gene
- NRRe0
- Outcome
- expression of NRRe0
- Direction
- lowerinferrede0
- Value
- 58%e0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The expression of NRR,which negatively regulates the growth of rice,was 58% as high as that of control plants”
e1“between nonglutinous rice colonized and un-colonized by P.indica”
Claim · model-written summary
Authors relate growth promotion by P. indica to chlorophyll content, nitrate reductase and root activities, and growth-related gene expression.
- Taxon
- riceOryza sativae0
- Interactor
- P.indicaSerendipita indicae0symbiont
- Outcome
- growth promotione0
- Qualifier
- chlorophyll content,NR activity,root activity and expression of growth-related genese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“growth promotion of rice conferred by P.indica was relevant to chlorophyll content,NR activity,root activity and expression of growth-related genes”
Claim · model-written summary
Authors propose that P. indica may promote rice growth through photosynthesis, mineral nutrition and auxin secretion.
- Taxon
- riceOryza sativae0
- Interactor
- P.indicaSerendipita indicae0symbiont
- Outcome
- growth of ricee0
- Qualifier
- improving photosynthetic rate,enhancing mineral nutrition absorption and utilization and inducing auxin secretione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“P.indica may promote the growth of rice through improving photosynthetic rate,enhancing mineral nutrition absorption and utilization and inducing auxin secretion”
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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.