Abstract
Polygalacturonase (PG), one of the hydrolases responsible for cell wall pectin degradation, is involved in organ consenescence and biotic stress in plants. PG1 is composed of a catalytic subunit, PG2, and a non-catalytic PG1β subunit. OsBURP16 belongs to the PG1β-like subfamily of BURP-family genes and encodes one putative PG1β subunit precursor in rice (Oryza sativa L.). Transcription of OsBURP16 is induced by cold, salinity and drought stresses, as well as by abscisic acid (ABA) treatment. Analysis of plant survival rates, relative ion leakage rates, accumulation levels of H2 O2 and water loss rates of leaves showed that overexpression of OsBURP16 enhanced sensitivity to cold, salinity and drought stresses compared with controls. Young leaves of Ubi::OsBURP16 transgenic plants showed reduced cell adhesion and increased cuticular transpiration rate. Mechanical strength measurement of Ubi::OsBURP16 plants showed that reduced force was required to break leaves as compared with wild type. Transgenic rice showed enhanced PG activity and reduced pectin content. All these results suggested that overexpression of OsBURP16 caused pectin degradation and affected cell wall integrity as well as transpiration rate, which decreased tolerance to abiotic stresses.
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Claims 10
Claim · model-written summary
OsBURP16 transcription is induced by cold, salinity and drought.
- Taxon
- rice
Oryza sativat0 - Treatment
- cold, salinity and drought stressese0
- Gene
- OsBURP16e0
- Outcome
- Transcription of OsBURP16e0
- Direction
- inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Transcription of OsBURP16 is induced by cold, salinity and drought stresses”
t0“rice”
Claim · model-written summary
ABA treatment induces OsBURP16 transcription.
- Taxon
- riceOryza sativat0
- Treatment
- abscisic acid (ABA) treatmente0
- Gene
- OsBURP16e0
- Outcome
- Transcription of OsBURP16e0
- Direction
- inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Transcription of OsBURP16 is induced by cold, salinity and drought stresses, as well as by abscisic acid (ABA) treatment”
t0“rice”
Claim · model-written summary
OsBURP16 overexpression increased sensitivity to cold, salinity and drought.
- Taxon
- riceOryza sativat0
- Treatment
- overexpression of OsBURP16e0
- Gene
- OsBURP16e0
- Outcome
- sensitivity to cold, salinity and drought stressese0
- Direction
- enhancede0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“overexpression of OsBURP16 enhanced sensitivity to cold, salinity and drought stresses compared with controls”
t0“rice”
Claim · model-written summary
Young transgenic leaves had reduced cell adhesion.
- Taxon
- riceOryza sativat0
- Material
- Ubi::OsBURP16 transgenic plantse0
- Organ / stage
- Young leavese0
- Outcome
- cell adhesione0
- Direction
- reducede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Young leaves of Ubi::OsBURP16 transgenic plants showed reduced cell adhesion and increased cuticular transpiration rate”
t0“rice”
Claim · model-written summary
Young transgenic leaves had increased cuticular transpiration.
- Taxon
- riceOryza sativat0
- Material
- Ubi::OsBURP16 transgenic plantse0
- Organ / stage
- Young leavese0
- Outcome
- cuticular transpiration ratee0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Young leaves of Ubi::OsBURP16 transgenic plants showed reduced cell adhesion and increased cuticular transpiration rate”
t0“rice”
Claim · model-written summary
Transgenic leaves required less force to break than wild type.
- Taxon
- riceOryza sativat0
- Treatment
- OsBURP16t0
- Outcome
- force was required to break leavese0
- Direction
- reducede0
- Comparator
- wild typee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced force was required to break leaves as compared with wild type”
t0“OsBURP16, the β subunit of polygalacturonase 1, decreases pectin content and cell adhesion and increases abiotic stress sensitivity in rice”
Claim · model-written summary
Transgenic rice had enhanced PG activity.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Transgenic rice showed enhanced PG activity and reduced pectin content”
Claim · model-written summary
Transgenic rice had reduced pectin content.
- Taxon
- riceOryza sativae0
- Material
- Transgenic ricee0
- Outcome
- pectin contente0
- Direction
- reducede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Transgenic rice showed enhanced PG activity and reduced pectin content”
Claim · model-written summary
The authors infer that OsBURP16 overexpression caused pectin degradation.
- Taxon
- riceOryza sativat0
- Gene
- OsBURP16e0
- Outcome
- pectin degradatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“overexpression of OsBURP16 caused pectin degradation and affected cell wall integrity as well as transpiration rate, which decreased tolerance to abiotic stresses”
t0“rice”
Claim · model-written summary
The authors infer that OsBURP16 overexpression impaired cell wall integrity and transpiration, reducing abiotic stress tolerance.
- Taxon
- riceOryza sativat0
- Gene
- OsBURP16e0
- Outcome
- tolerance to abiotic stressese0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“overexpression of OsBURP16 caused pectin degradation and affected cell wall integrity as well as transpiration rate, which decreased tolerance to abiotic stresses”
t0“rice”
The same questions in other papers
cold · molecular: expression · Oryza sativa (rice)Positive and negative results
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- positive
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See all 47 papers →salinity · molecular: expression · Oryza sativa (rice)Positive and negative results
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- no effect
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See all 72 papers →drought · molecular: expression · Oryza sativa (rice)Positive and negative results
21 papers in the same direction as this paper · 58 in the opposite direction
- no effect
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See all 80 papers →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.