Abstract
ABSTRACT Aluminium toxicity is an important factor limiting plant growth mi acid soils. Symptoms of B deficiency and Al toxicity are very similar and generally associated with impaired membrane Function and root growth . Thus the objective of this study was to determine whether supplemental B prevents Al inhibition of root growth and development. Squash ( Cucurbita pepo L. cv. Sunbar) was grown in hydroponic nutrient media with 44 mmol m −3 free Al and B concentrations extending from 5 to 100 mmol m −3 . Our results establish that B protects against Al inhibition of root growth. Protection was apparent at all levels of organization examined: primary root and lateral root lengths; primary root cell elongation, cell production rate, tissue organization and cell structure; primary root morphology and maturation. Protection against Al inhibition was also apparent for shoot growth. These studies were undertaken in solution culture to limit the variables examined; however, the underlying motivation for this study is the problem of worldwide Al toxicity in soils. Therefore, the effect of adding additional B to a high‐Al soil was also investigated and is the subject of the companion paper (Le Noble. Blevins & Miles 1996, Plant, Cell and Environment 19, 1143–1148).
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Claims 5
Claim · model-written summary
Supplemental boron protects squash root growth against aluminium inhibition.
Not reportedComparator
Verbatim
e0“Our results establish that B protects against Al inhibition of root growth.”
e1“Squash”
Claim · model-written summary
Boron protects primary and lateral root lengths under aluminium exposure.
- Taxon
- Squashe1
- Treatment
- supplemental boront0
- Outcome
- primary root and lateral root lengthse0
- Direction
- Protectione0
Not reportedComparator
Verbatim
e0“Protection was apparent at all levels of organization examined: primary root and lateral root lengths”
e1“Squash”
t0“supplemental boron”
Claim · model-written summary
Boron protects primary root cell elongation, production, tissue organization and cell structure.
- Taxon
- Squashe1
- Treatment
- supplemental boront0
- Outcome
- primary root cell elongation, cell production rate, tissue organization and cell structuree0
Not reportedComparatorDirection
Verbatim
e0“primary root cell elongation, cell production rate, tissue organization and cell structure”
e1“Squash”
t0“supplemental boron”
Claim · model-written summary
Boron protects primary root morphology and maturation under aluminium exposure.
Not reportedComparatorDirection
Verbatim
e0“primary root morphology and maturation.”
e1“Squash”
t0“supplemental boron”
Claim · model-written summary
Boron also protects shoot growth against aluminium inhibition.
Not reportedComparator
Verbatim
e0“Protection against Al inhibition was also apparent for shoot growth.”
e1“Squash”
t0“supplemental boron”
The same questions in other papers
boron atom · growth · Cucurbita (pumpkins)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 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.