Abstract
Boron-deficient sunflower hypocotyls have, on a fresh weight basis, more cytoplasmic and cell wall peroxidase, more cytoplasmic hydroxyproline but equal cell wall hydroxyproline, and slightly less cell wall boron, than controls. Incubation of either Bdeficient or control cell wall suspensions with Sclerotium rolfsii culture nitrate released 80% of the peroxidase activity, but only 14 to 30% of the hydroxyproline. This differential extraction suggests that the hydroxyproline-containing protein of cell walls is not identical with peroxidase. Boron deficiency increased the susceptibility of cell walls to degradation by fungal enzymes, as measured by release of peroxidase and hydroxyproline, but not by reduction in dry weight.
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Claims 10
Claim · model-written summary
Boron-deficient sunflower had more cytoplasmic peroxidase than controls.
- Taxon
- sunflower
Helianthus annuuse0 - Treatment
- Boron-deficiente0
- Outcome
- cytoplasmic and cell wall peroxidasee0
- Direction
- moree0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Boron-deficient sunflower hypocotyls have, on a fresh weight basis, more cytoplasmic and cell wall peroxidase, more cytoplasmic hydroxyproline but equal cell wall hydroxyproline, and slightly less cell wall boron, than controls”
Claim · model-written summary
Boron-deficient sunflower had more cell wall peroxidase than controls.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- Boron-deficiente0
- Outcome
- cell wall peroxidasee0
- Direction
- moree0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Boron-deficient sunflower hypocotyls have, on a fresh weight basis, more cytoplasmic and cell wall peroxidase, more cytoplasmic hydroxyproline but equal cell wall hydroxyproline, and slightly less cell wall boron, than controls”
Claim · model-written summary
Boron-deficient sunflower had more cytoplasmic hydroxyproline than controls.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- Boron-deficiente0
- Outcome
- cytoplasmic hydroxyprolinee0
- Direction
- moree0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Boron-deficient sunflower hypocotyls have, on a fresh weight basis, more cytoplasmic and cell wall peroxidase, more cytoplasmic hydroxyproline but equal cell wall hydroxyproline, and slightly less cell wall boron, than controls”
Claim · model-written summary
Cell wall hydroxyproline was equal in deficient sunflower and controls.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- Boron-deficiente0
- Outcome
- cell wall hydroxyprolinee0
- Direction
- equale0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Boron-deficient sunflower hypocotyls have, on a fresh weight basis, more cytoplasmic and cell wall peroxidase, more cytoplasmic hydroxyproline but equal cell wall hydroxyproline, and slightly less cell wall boron, than controls”
Claim · model-written summary
Boron-deficient sunflower had slightly less cell wall boron than controls.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- Boron-deficiente0
- Outcome
- cell wall borone0
- Direction
- slightly lesse0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Boron-deficient sunflower hypocotyls have, on a fresh weight basis, more cytoplasmic and cell wall peroxidase, more cytoplasmic hydroxyproline but equal cell wall hydroxyproline, and slightly less cell wall boron, than controls”
Claim · model-written summary
Sclerotium rolfsii culture nitrate released 80% of wall peroxidase activity.
- Taxon
- Helianthus annuus L.Helianthus annuust0
- Treatment
- Sclerotium rolfsii culture nitratee0
- Interactor
- Sclerotium rolfsii
Agroathelia rolfsiie0pathogen - Outcome
- peroxidase activitye0
- Direction
- releasede0
- Value
- 80%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Incubation of either Bdeficient or control cell wall suspensions with Sclerotium rolfsii culture nitrate released 80% of the peroxidase activity”
t0“Helianthus annuus L.”
Claim · model-written summary
The incubation released 14 to 30% of wall hydroxyproline.
- Taxon
- Helianthus annuus L.Helianthus annuust0
- Treatment
- Sclerotium rolfsii culture nitratee0
- Interactor
- Sclerotium rolfsiiAgroathelia rolfsiie0pathogen
- Outcome
- hydroxyprolinee0
- Direction
- releasede0
- Value
- 14 to 30%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Incubation of either Bdeficient or control cell wall suspensions with Sclerotium rolfsii culture nitrate released 80% of the peroxidase activity, but only 14 to 30% of the hydroxyproline”
t0“Helianthus annuus L.”
Claim · model-written summary
Differential extraction suggests cell-wall hydroxyproline protein differs from peroxidase.
- Taxon
- Helianthus annuus L.Helianthus annuust0
- Gene
- peroxidasee0
- Outcome
- hydroxyproline-containing protein of cell walls is not identical with peroxidasee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This differential extraction suggests that the hydroxyproline-containing protein of cell walls is not identical with peroxidase”
t0“Helianthus annuus L.”
Claim · model-written summary
Boron deficiency increased wall degradation susceptibility measured by peroxidase and hydroxyproline release.
- Taxon
- Helianthus annuus L.Helianthus annuust0
- Treatment
- Boron deficiencye0
- Interactor
- fungale0pathogen
- Outcome
- susceptibility of cell walls to degradation by fungal enzymese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Boron deficiency increased the susceptibility of cell walls to degradation by fungal enzymes, as measured by release of peroxidase and hydroxyproline”
t0“Helianthus annuus L.”
Claim · model-written summary
Boron deficiency did not reduce wall dry weight during fungal degradation.
- Taxon
- Helianthus annuus L.Helianthus annuust0
- Treatment
- Boron deficiencye0
- Interactor
- fungale0pathogen
- Outcome
- dry weighte0
- Direction
- not by reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Boron deficiency increased the susceptibility of cell walls to degradation by fungal enzymes, as measured by release of peroxidase and hydroxyproline, but not by reduction in dry weight”
t0“Helianthus annuus L.”
The same questions in other papers
boron atom · growth · Helianthus annuus (common sunflower)Results differ
5 papers in the same direction as this paper · 33 in the opposite direction
This paper is about lacking the nutrient, so it counts the other way round here.
- positive
- positive
- positive
35 papers more in this group
See all 39 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.