Abstract
The glycollate metabolism of wheat (Triticum vulgare Vill. cv. Sonalika) and rice (Oryza sativa L. ev. Jaya) leaves was studied during senescence by estimating the endogenous levels of glycollate and hydrogen peroxide (H2O2) and the activities of glycollate oxidase and catalase. In comparison with light incubation the incubation of excised leaves in the dark caused a decline in the glycollate content and in the activities of glycollate oxidase and catalase, and an increase in the H2O2 content, more marked in the leaves of rice than in the leaves of wheat. Glycollate oxidase activity gradually decreased with incubation time, and glycollate metabolism decreased during senescence. The glycollate oxidase in particular and glycollate metabolism of rice were more sensitive to incubation time than those of wheat. Kinetin increased the glycollate oxidase activity and glycollate metabolism during senescence, while ethrel (2-chloroethylpho-sphonic acid) and ABA (abscisic acid) reduced these activities in both plant species.
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Claims 8
Claim · model-written summary
Dark incubation lowered glycollate content and glycollate oxidase and catalase activities relative to light in wheat and rice leaves.
- Taxon
- wheat
Triticum aestivume1 - Treatment
- darke0
- Outcome
- glycollate content and in the activities of glycollate oxidase and catalasee0
- Direction
- declinee0
- Comparator
- light incubatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In comparison with light incubation the incubation of excised leaves in the dark caused a decline in the glycollate content and in the activities of glycollate oxidase and catalase”
e1“wheat (Triticum vulgare Vill. cv. Sonalika)”
Claim · model-written summary
Dark incubation increased H2O2 content, more strongly in rice than wheat.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“and an increase in the H2O2 content, more marked in the leaves of rice than in the leaves of wheat.”
e1“rice (Oryza sativa L. ev. Jaya)”
e2“In comparison with light incubation the incubation of excised leaves in the dark caused a decline in the glycollate content and in the activities of glycollate oxidase and catalase”
Claim · model-written summary
Glycollate oxidase activity decreased with incubation time.
- Taxon
- wheatTriticum aestivume1
- Treatment
- incubation timee0
- Outcome
- Glycollate oxidase activitye0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Glycollate oxidase activity gradually decreased with incubation time”
e1“wheat (Triticum vulgare Vill. cv. Sonalika)”
Claim · model-written summary
Glycollate metabolism decreased during senescence.
- Taxon
- wheatTriticum aestivume1
- Organ / stage
- senescencee0
- Outcome
- glycollate metabolisme0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“glycollate metabolism decreased during senescence.”
e1“wheat (Triticum vulgare Vill. cv. Sonalika)”
Claim · model-written summary
Rice glycollate oxidase and metabolism were more sensitive to incubation time than wheat.
- Taxon
- rice
Oryza sativae1 - Outcome
- glycollate oxidase in particular and glycollate metabolisme0
- Direction
- more sensitivee0
- Comparator
- wheate0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The glycollate oxidase in particular and glycollate metabolism of rice were more sensitive to incubation time than those of wheat.”
e1“rice (Oryza sativa L. ev. Jaya)”
Claim · model-written summary
Kinetin increased glycollate oxidase activity and glycollate metabolism during senescence.
- Taxon
- wheatTriticum aestivume1
- Treatment
- Kinetine0
- Outcome
- glycollate oxidase activity and glycollate metabolisme0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Kinetin increased the glycollate oxidase activity and glycollate metabolism during senescence”
e1“wheat (Triticum vulgare Vill. cv. Sonalika)”
Claim · model-written summary
Ethrel reduced these activities in both species.
- Taxon
- wheatTriticum aestivume1
- Treatment
- ethrele0
- Outcome
- these activitiese0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ethrel (2-chloroethylpho-sphonic acid) and ABA (abscisic acid) reduced these activities in both plant species.”
e1“wheat (Triticum vulgare Vill. cv. Sonalika)”
Claim · model-written summary
ABA reduced these activities in both species.
- Taxon
- riceOryza sativae1
- Treatment
- ABAe0
- Outcome
- these activitiese0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ethrel (2-chloroethylpho-sphonic acid) and ABA (abscisic acid) reduced these activities in both plant species.”
e1“rice (Oryza sativa L. ev. Jaya)”
The same questions in other papers
kinetin · physiology: enzyme activity · Triticum aestivum (wheat)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
light · physiology: antioxidant enzymes · Triticum aestivum (wheat)Positive and negative results
6 papers in the same direction as this paper · 6 in the opposite direction
- positive
- positive
- positive
9 papers more in this group
See all 13 papers →light · physiology: oxidative · Oryza sativa (rice)Results agree
6 papers in the same direction as this paper
- no effect
- negative
- negative
3 papers more in this group
See all 7 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.