Abstract
Although boron deficiency (BD) is a drastic disorder to the agriculture crops, its effects on watermelon still unknown. Therefore, the present study investigates the effect of BD (0 and 0.5 mg L−1) on different morphological, physiological and biochemical traits, and mineral uptake during early seedlings stage of watermelon. B-deficiency induced leaf chlorosis in watermelon initiated from the leaf margins and tips. Despite that, BD increased shoot length, and root and shoot dry weight of BD-watermelon seedlings. BD decreased leaf chlorophyll and carotenoid contents, and photosynthetic parameters without affecting quantum yield of PSII. BD significantly inhibited total soluble protein accumulation, while leaf proline content was unaffected. A significant increase in antioxidant enzyme activities in response to higher hydrogen peroxide (H2O2) generation could possibly reduced lipid peroxidation and promoted BD-watermelon plant growth. BD influenced mineral uptake variously: the induction of phosphorus (P) and zinc (Zn), and the preservation of potassium (K), calcium (Ca) and molybdenum (Mo) levels in the leaves could maintain watermelon growth; while, the inhibition of magnesium (Mg) uptake seemed to be responsible for suppressed leaf chlorophyll and photosynthesis. These results would further help in understanding the physiological pathways and mechanisms associated with BD especially in watermelon, and provide database for fertilizer recommendations in B-deficient areas.
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Claims 13
Claim · model-written summary
Boron deficiency induced marginal and tip leaf chlorosis.
- Taxon
- watermelon
Citrullus lanatuse0 - Organ / stage
- leafe0
- Treatment
- B-deficiencye0
- Outcome
- leaf chlorosise0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“B-deficiency induced leaf chlorosis in watermelon initiated from the leaf margins and tips”
Claim · model-written summary
Boron deficiency increased shoot length and root and shoot dry weight.
- Taxon
- watermelonCitrullus lanatuse0
- Treatment
- BDe0
- Outcome
- shoot length, and root and shoot dry weighte0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“BD increased shoot length, and root and shoot dry weight of BD-watermelon seedlings”
Claim · model-written summary
Boron deficiency decreased leaf chlorophyll and carotenoid contents and photosynthetic parameters.
- Taxon
- watermelonCitrullus lanatuse1
- Treatment
- BDe0
- Outcome
- leaf chlorophyll and carotenoid contents, and photosynthetic parameterse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“BD decreased leaf chlorophyll and carotenoid contents, and photosynthetic parameters”
e1“watermelon”
Claim · model-written summary
Boron deficiency did not affect PSII quantum yield.
- Taxon
- watermelonCitrullus lanatust0
- Treatment
- BDe1
- Outcome
- quantum yield of PSIIe0
- Direction
- without affectinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“without affecting quantum yield of PSII”
e1“BD decreased leaf chlorophyll and carotenoid contents, and photosynthetic parameters”
t0“watermelon”
Claim · model-written summary
Boron deficiency significantly inhibited total soluble protein accumulation.
- Taxon
- watermelonCitrullus lanatust0
- Treatment
- BDe0
- Outcome
- total soluble protein accumulatione0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“BD significantly inhibited total soluble protein accumulation”
t0“watermelon”
Claim · model-written summary
Leaf proline content was unaffected by boron deficiency.
- Taxon
- watermelonCitrullus lanatust0
- Treatment
- BDe1
- Outcome
- leaf proline contente0
- Direction
- unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“leaf proline content was unaffected”
e1“BD significantly inhibited total soluble protein accumulation”
t0“watermelon”
Claim · model-written summary
Boron deficiency significantly increased antioxidant enzyme activities.
- Taxon
- watermelonCitrullus lanatust0
- Treatment
- BDe1
- Compound
- hydrogen peroxide (H2O2)e0
- Outcome
- antioxidant enzyme activitiese0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A significant increase in antioxidant enzyme activities in response to higher hydrogen peroxide (H2O2) generation”
t0“watermelon”
e1“BD significantly inhibited total soluble protein accumulation”
Claim · model-written summary
Boron deficiency was associated with higher hydrogen peroxide generation.
- Taxon
- watermelonCitrullus lanatust0
- Treatment
- BDe1
- Outcome
- hydrogen peroxide (H2O2) generatione0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher hydrogen peroxide (H2O2) generation”
e1“BD significantly inhibited total soluble protein accumulation”
t0“watermelon”
Claim · model-written summary
Antioxidant responses could possibly reduce lipid peroxidation and promote growth under boron deficiency.
- Taxon
- watermelonCitrullus lanatuse0
- Treatment
- BDe0
- Outcome
- lipid peroxidation and promoted BD-watermelon plant growthe0
- Qualifier
- antioxidant enzyme activitiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A significant increase in antioxidant enzyme activities in response to higher hydrogen peroxide (H2O2) generation could possibly reduced lipid peroxidation and promoted BD-watermelon plant growth”
Claim · model-written summary
Boron deficiency induced leaf phosphorus and zinc uptake.
- Taxon
- watermelonCitrullus lanatust0
- Organ / stage
- leavese0
- Treatment
- BDe1
- Outcome
- phosphorus (P) and zinc (Zn)e0
- Direction
- inductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the induction of phosphorus (P) and zinc (Zn), and the preservation of potassium (K), calcium (Ca) and molybdenum (Mo) levels in the leaves”
e1“BD influenced mineral uptake variously”
t0“watermelon”
Claim · model-written summary
Leaf potassium, calcium and molybdenum levels were preserved under boron deficiency.
- Taxon
- watermelonCitrullus lanatust0
- Organ / stage
- leavese0
- Treatment
- BDe1
- Outcome
- potassium (K), calcium (Ca) and molybdenum (Mo) levelse0
- Direction
- preservatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the preservation of potassium (K), calcium (Ca) and molybdenum (Mo) levels in the leaves”
e1“BD influenced mineral uptake variously”
t0“watermelon”
Claim · model-written summary
Boron deficiency inhibited magnesium uptake.
- Taxon
- watermelonCitrullus lanatust0
- Treatment
- BDe1
- Outcome
- magnesium (Mg) uptakee0
- Direction
- inhibitione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the inhibition of magnesium (Mg) uptake seemed to be responsible for suppressed leaf chlorophyll and photosynthesis”
e1“BD influenced mineral uptake variously”
t0“watermelon”
Claim · model-written summary
Reduced magnesium uptake seemed responsible for suppressed leaf chlorophyll and photosynthesis.
- Taxon
- watermelonCitrullus lanatust0
- Outcome
- suppressed leaf chlorophyll and photosynthesise0
- Qualifier
- inhibition of magnesium (Mg) uptakee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the inhibition of magnesium (Mg) uptake seemed to be responsible for suppressed leaf chlorophyll and photosynthesis”
t0“watermelon”
The same questions in other papers
boron atom · physiology: osmolytes · Citrullus lanatus (watermelon)Positive and negative results
1 in the opposite direction
- positive
boron atom · physiology: photosynthesis · Citrullus lanatus (watermelon)Positive and negative results
1 in the opposite direction
This paper is about lacking the nutrient, so it counts the other way round here.
- negative
boron atom · growth · Citrullus lanatus (watermelon)Positive and negative results
2 papers in the same direction as this paper · 3 in the opposite direction
This paper is about lacking the nutrient, so it counts the other way round here.
- no effect
- positive
- positive
2 papers more in this group
See all 6 papers →boron atom · nutrient: content · Citrullus lanatus (watermelon)Results agree
1 paper in the same direction as this paper
- positive
boron atom · molecular: expression · Citrullus lanatus (watermelon)Results agree
2 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
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.