Abstract
Zn deficiency induced increases in epicuticular wax deposits, lamina thickness, degree of succulence, water saturation deficit, diffusive resistance, and proline accumulation and decreases in carbonic anhydrase activity, water potential, stomatal aperture, and transpiration in the leaves of cauliflower (Brassica oleracea L. var botrytis cv Pusa) plants. Restoration of Zn supply to the deficient plants increased stomatal aperture, transpiration, and carbonic anhydrase activity significantly within 2 h. However, leaf water potential in the Zn-deficient plants did not recover within 24 h after resupply of Zn. The guard cells in epidermal peels from the Zn-deficient leaves had less K+ than those from the controls. Stomatal aperture in the epidermal peels from Zn-deficient leaves was 64% less than in the controls when the epidermal strips were floated on 125 mM KCl. Supplementing the ambient medium 25 mM KCl with ZnCl2 enhanced stomatal aperture in both control and Zn-deficient peels, and the effect was significant in the latter. The observations indicate involvement of Zn in stomatal opening, possibly as a constituent of carbonic anhydrase needed for maintaining adequate [HCO3-] in the guard cells, and also as a factor affecting K+ uptake by the guard cells.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 18
Claim · model-written summary
Zn deficiency increased epicuticular wax deposits in cauliflower leaves.
- Taxon
- cauliflower
Brassica oleracea var. botrytise0 - Organ / stage
- leavese0
- Treatment
- Zn deficiencye0
- Outcome
- epicuticular wax depositse0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn deficiency induced increases in epicuticular wax deposits, lamina thickness, degree of succulence, water saturation deficit, diffusive resistance, and proline accumulation and decreases in carbonic anhydrase activity, water potential, stomatal aperture, and transpiration in the leaves of cauliflower (Brassica oleracea L. var botrytis cv Pusa) plants.”
Claim · model-written summary
Zn deficiency increased lamina thickness in cauliflower leaves.
- Taxon
- cauliflowerBrassica oleracea var. botrytise0
- Organ / stage
- leavese0
- Treatment
- Zn deficiencye0
- Outcome
- lamina thicknesse0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn deficiency induced increases in epicuticular wax deposits, lamina thickness, degree of succulence, water saturation deficit, diffusive resistance, and proline accumulation and decreases in carbonic anhydrase activity, water potential, stomatal aperture, and transpiration in the leaves of cauliflower (Brassica oleracea L. var botrytis cv Pusa) plants.”
Claim · model-written summary
Zn deficiency increased degree of succulence in cauliflower leaves.
- Taxon
- cauliflowerBrassica oleracea var. botrytise0
- Organ / stage
- leavese0
- Treatment
- Zn deficiencye0
- Outcome
- degree of succulencee0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn deficiency induced increases in epicuticular wax deposits, lamina thickness, degree of succulence, water saturation deficit, diffusive resistance, and proline accumulation and decreases in carbonic anhydrase activity, water potential, stomatal aperture, and transpiration in the leaves of cauliflower (Brassica oleracea L. var botrytis cv Pusa) plants.”
Claim · model-written summary
Zn deficiency increased water saturation deficit in cauliflower leaves.
- Taxon
- cauliflowerBrassica oleracea var. botrytise0
- Organ / stage
- leavese0
- Treatment
- Zn deficiencye0
- Outcome
- water saturation deficite0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn deficiency induced increases in epicuticular wax deposits, lamina thickness, degree of succulence, water saturation deficit, diffusive resistance, and proline accumulation and decreases in carbonic anhydrase activity, water potential, stomatal aperture, and transpiration in the leaves of cauliflower (Brassica oleracea L. var botrytis cv Pusa) plants.”
Claim · model-written summary
Zn deficiency increased diffusive resistance in cauliflower leaves.
- Taxon
- cauliflowerBrassica oleracea var. botrytise0
- Organ / stage
- leavese0
- Treatment
- Zn deficiencye0
- Outcome
- diffusive resistancee0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn deficiency induced increases in epicuticular wax deposits, lamina thickness, degree of succulence, water saturation deficit, diffusive resistance, and proline accumulation and decreases in carbonic anhydrase activity, water potential, stomatal aperture, and transpiration in the leaves of cauliflower (Brassica oleracea L. var botrytis cv Pusa) plants.”
Claim · model-written summary
Zn deficiency increased proline accumulation in cauliflower leaves.
- Taxon
- cauliflowerBrassica oleracea var. botrytise0
- Organ / stage
- leavese0
- Treatment
- Zn deficiencye0
- Outcome
- proline accumulatione0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn deficiency induced increases in epicuticular wax deposits, lamina thickness, degree of succulence, water saturation deficit, diffusive resistance, and proline accumulation and decreases in carbonic anhydrase activity, water potential, stomatal aperture, and transpiration in the leaves of cauliflower (Brassica oleracea L. var botrytis cv Pusa) plants.”
Claim · model-written summary
Zn deficiency decreased carbonic anhydrase activity in cauliflower leaves.
- Taxon
- cauliflowerBrassica oleracea var. botrytise0
- Organ / stage
- leavese0
- Treatment
- Zn deficiencye0
- Outcome
- carbonic anhydrase activitye0
- Direction
- decreasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn deficiency induced increases in epicuticular wax deposits, lamina thickness, degree of succulence, water saturation deficit, diffusive resistance, and proline accumulation and decreases in carbonic anhydrase activity, water potential, stomatal aperture, and transpiration in the leaves of cauliflower (Brassica oleracea L. var botrytis cv Pusa) plants.”
Claim · model-written summary
Zn deficiency decreased water potential in cauliflower leaves.
- Taxon
- cauliflowerBrassica oleracea var. botrytise0
- Organ / stage
- leavese0
- Treatment
- Zn deficiencye0
- Outcome
- water potentiale0
- Direction
- decreasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn deficiency induced increases in epicuticular wax deposits, lamina thickness, degree of succulence, water saturation deficit, diffusive resistance, and proline accumulation and decreases in carbonic anhydrase activity, water potential, stomatal aperture, and transpiration in the leaves of cauliflower (Brassica oleracea L. var botrytis cv Pusa) plants.”
Claim · model-written summary
Zn deficiency decreased stomatal aperture in cauliflower leaves.
- Taxon
- cauliflowerBrassica oleracea var. botrytise0
- Organ / stage
- leavese0
- Treatment
- Zn deficiencye0
- Outcome
- stomatal aperturee0
- Direction
- decreasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn deficiency induced increases in epicuticular wax deposits, lamina thickness, degree of succulence, water saturation deficit, diffusive resistance, and proline accumulation and decreases in carbonic anhydrase activity, water potential, stomatal aperture, and transpiration in the leaves of cauliflower (Brassica oleracea L. var botrytis cv Pusa) plants.”
Claim · model-written summary
Zn deficiency decreased transpiration in cauliflower leaves.
- Taxon
- cauliflowerBrassica oleracea var. botrytise0
- Organ / stage
- leavese0
- Treatment
- Zn deficiencye0
- Outcome
- transpiratione0
- Direction
- decreasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn deficiency induced increases in epicuticular wax deposits, lamina thickness, degree of succulence, water saturation deficit, diffusive resistance, and proline accumulation and decreases in carbonic anhydrase activity, water potential, stomatal aperture, and transpiration in the leaves of cauliflower (Brassica oleracea L. var botrytis cv Pusa) plants.”
Claim · model-written summary
Restoring Zn significantly increased stomatal aperture within 2 h.
- Taxon
- CauliflowerBrassica oleracea var. botrytist0
- Treatment
- Restoration of Zn supplye0
- Outcome
- stomatal aperturee0
- Direction
- increasede0
- Qualifier
- within 2 he0
- Comparator
- deficient plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Restoration of Zn supply to the deficient plants increased stomatal aperture, transpiration, and carbonic anhydrase activity significantly within 2 h.”
t0“Cauliflower”
Claim · model-written summary
Restoring Zn significantly increased transpiration within 2 h.
- Taxon
- CauliflowerBrassica oleracea var. botrytist0
- Treatment
- Restoration of Zn supplye0
- Outcome
- transpiratione0
- Direction
- increasede0
- Qualifier
- within 2 he0
- Comparator
- deficient plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Restoration of Zn supply to the deficient plants increased stomatal aperture, transpiration, and carbonic anhydrase activity significantly within 2 h.”
t0“Cauliflower”
Claim · model-written summary
Restoring Zn significantly increased carbonic anhydrase activity within 2 h.
- Taxon
- CauliflowerBrassica oleracea var. botrytist0
- Treatment
- Restoration of Zn supplye0
- Outcome
- carbonic anhydrase activitye0
- Direction
- increasede0
- Qualifier
- within 2 he0
- Comparator
- deficient plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Restoration of Zn supply to the deficient plants increased stomatal aperture, transpiration, and carbonic anhydrase activity significantly within 2 h.”
t0“Cauliflower”
Claim · model-written summary
Leaf water potential did not recover within 24 h of Zn resupply.
- Taxon
- CauliflowerBrassica oleracea var. botrytist0
- Treatment
- resupply of Zne0
- Outcome
- leaf water potentiale0
- Direction
- did not recovere0
- Qualifier
- within 24 he0
- Comparator
- Zn-deficient plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, leaf water potential in the Zn-deficient plants did not recover within 24 h after resupply of Zn.”
t0“Cauliflower”
Claim · model-written summary
Zn-deficient leaf guard cells contained less K+ than controls.
- Taxon
- CauliflowerBrassica oleracea var. botrytist0
- Organ / stage
- guard cellse0
- Treatment
- Zn-deficient leavese0
- Outcome
- K+e0
- Direction
- lesse0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The guard cells in epidermal peels from the Zn-deficient leaves had less K+ than those from the controls.”
t0“Cauliflower”
Claim · model-written summary
Stomatal aperture was 64% less in Zn-deficient peels than controls in 125 mM KCl.
- Taxon
- CauliflowerBrassica oleracea var. botrytist0
- Treatment
- Zn-deficient leavese0
- Outcome
- Stomatal aperturee0
- Direction
- lesse0
- Value
- 64%e0
- Qualifier
- 125 mM KCle0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Stomatal aperture in the epidermal peels from Zn-deficient leaves was 64% less than in the controls when the epidermal strips were floated on 125 mM KCl.”
t0“Cauliflower”
Claim · model-written summary
ZnCl2 enhanced stomatal aperture in both control and Zn-deficient peels, significantly in deficient peels.
- Taxon
- CauliflowerBrassica oleracea var. botrytist0
- Treatment
- ZnCl2e0
- Outcome
- stomatal aperturee0
- Direction
- enhancede0
- Qualifier
- both control and Zn-deficient peelse0
- Comparator
- 25 mM KCle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Supplementing the ambient medium 25 mM KCl with ZnCl2 enhanced stomatal aperture in both control and Zn-deficient peels, and the effect was significant in the latter.”
t0“Cauliflower”
Claim · model-written summary
The authors infer that Zn contributes to stomatal opening through carbonic anhydrase and guard-cell K+ uptake.
- Taxon
- CauliflowerBrassica oleracea var. botrytist0
- Gene
- carbonic anhydrasee0
- Outcome
- stomatal openinge0
- Qualifier
- K+ uptake by the guard cellse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The observations indicate involvement of Zn in stomatal opening, possibly as a constituent of carbonic anhydrase needed for maintaining adequate [HCO3-] in the guard cells, and also as a factor affecting K+ uptake by the guard cells.”
t0“Cauliflower”
The same questions in other papers
zinc atom · disease · Brassica oleracea (wild cabbage)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
This paper is about lacking the nutrient, so it counts the other way round here.
- no effect
- positive
zinc atom · physiology: water · Brassica oleracea (wild cabbage)Results agree
1 paper in the same direction as this paper
- positive
zinc atom · physiology: enzyme activity · Brassica oleracea (wild cabbage)Results agree
1 paper in the same direction as this paper
- positive
zinc atom · molecular: metabolites · Brassica oleracea (wild cabbage)Results agree
5 papers in the same direction as this paper
This paper is about lacking the nutrient, so it counts the other way round here.
- positive
- positive
- positive
2 papers more in this group
See all 6 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.