Abstract
ABSTRACT The possibility that changes in the plasticity of expanding cell walls are involved in regulating early leaf growth responses to nutrient deficiencies in monocot plants was investigated. Intact maize seedlings ( Zea mays L.) which were hydroponically grown with their roots in low‐nutrient solution (1 mol m −3 CaCl 2 ) showed early inhibition of first‐leaf growth, as compared with seedlings on complete nutrient solution. This early inhibition of leaf growth was not associated with reduced cell production. However, segmental elongation along the cell expansion zone at the base of the leaf and the lengths of mature epidermal cells were reduced by the low‐nutrient treatment. Solute (osmotic) potentials in the expanding leaf tissues were unchanged. In contrast, low‐nutrient treatments significantly altered leaf plasticity, i.e. the irreversible extension caused by applying a small force in the direction of leaf growth. For example, in vivo plasticity decreased, along with leaf growth, after transfer of seedlings from complete nutrient solution to low‐nutrient solution for 15 h. Conversely, in vivo plasticity increased, along with leaf growth, after transfer of plants previously grown on low‐nutrient solution to complete nutrient solution for 15 h. The nutrient treatments also induced similar changes in the in vitro plasticity of the expanding leaf cell walls. There were no consistent changes in elasticity. Thus, reductions in the plasticity of expanding leaf cell walls appear to be involved in controlling the early inhibition of maize leaf growth by root imposition of nutrient stress.
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 13
Claim · model-written summary
Low nutrient solution inhibited first leaf growth relative to complete solution.
- Treatment
- low‐nutrient solution (1 mol m −3 CaCl 2 )e0
- Outcome
- first‐leaf growthe0
- Direction
- inhibitione0
- Comparator
- complete nutrient solutione0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Intact maize seedlings ( Zea mays L.) which were hydroponically grown with their roots in low‐nutrient solution (1 mol m −3 CaCl 2 ) showed early inhibition of first‐leaf growth, as compared with seedlings on complete nutrient solution.”
Claim · model-written summary
Early leaf growth inhibition was not associated with reduced cell production.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This early inhibition of leaf growth was not associated with reduced cell production.”
t0“Intact maize seedlings ( Zea mays L.)”
e1“Intact maize seedlings ( Zea mays L.)”
Claim · model-written summary
Low nutrients reduced segmental elongation in the leaf expansion zone.
- Treatment
- low‐nutrient treatmente0
- Outcome
- segmental elongation along the cell expansion zonee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“segmental elongation along the cell expansion zone at the base of the leaf and the lengths of mature epidermal cells were reduced by the low‐nutrient treatment.”
t0“Intact maize seedlings ( Zea mays L.)”
Claim · model-written summary
Low nutrients reduced mature epidermal cell length.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“segmental elongation along the cell expansion zone at the base of the leaf and the lengths of mature epidermal cells were reduced by the low‐nutrient treatment.”
t0“Intact maize seedlings ( Zea mays L.)”
Claim · model-written summary
Solute potentials in expanding leaves were unchanged.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Solute (osmotic) potentials in the expanding leaf tissues were unchanged.”
t0“Intact maize seedlings ( Zea mays L.)”
Claim · model-written summary
Low nutrients significantly altered leaf plasticity.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“low‐nutrient treatments significantly altered leaf plasticity”
t0“Intact maize seedlings ( Zea mays L.)”
Claim · model-written summary
Transfer to low nutrients for 15 h decreased in vivo plasticity.
- Treatment
- low‐nutrient solution for 15 he0
- Outcome
- in vivo plasticitye0
- Direction
- decreasede0
- Comparator
- complete nutrient solutione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in vivo plasticity decreased, along with leaf growth, after transfer of seedlings from complete nutrient solution to low‐nutrient solution for 15 h.”
t0“Intact maize seedlings ( Zea mays L.)”
Claim · model-written summary
Transfer to low nutrients for 15 h decreased leaf growth.
- Treatment
- low‐nutrient solution for 15 he0
- Outcome
- leaf growthe0
- Direction
- decreasede0
- Comparator
- complete nutrient solutione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in vivo plasticity decreased, along with leaf growth, after transfer of seedlings from complete nutrient solution to low‐nutrient solution for 15 h.”
t0“Intact maize seedlings ( Zea mays L.)”
Claim · model-written summary
Transfer to complete nutrients for 15 h increased in vivo plasticity.
- Treatment
- complete nutrient solution for 15 he0
- Outcome
- in vivo plasticitye0
- Direction
- increasede0
- Comparator
- low‐nutrient solutione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in vivo plasticity increased, along with leaf growth, after transfer of plants previously grown on low‐nutrient solution to complete nutrient solution for 15 h.”
t0“Intact maize seedlings ( Zea mays L.)”
Claim · model-written summary
Transfer to complete nutrients for 15 h increased leaf growth.
- Treatment
- complete nutrient solution for 15 he0
- Outcome
- leaf growthe0
- Direction
- increasede0
- Comparator
- low‐nutrient solutione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in vivo plasticity increased, along with leaf growth, after transfer of plants previously grown on low‐nutrient solution to complete nutrient solution for 15 h.”
t0“Intact maize seedlings ( Zea mays L.)”
Claim · model-written summary
Nutrient treatments induced similar changes in in vitro wall plasticity.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The nutrient treatments also induced similar changes in the in vitro plasticity of the expanding leaf cell walls.”
t0“Intact maize seedlings ( Zea mays L.)”
Claim · model-written summary
Leaf wall elasticity showed no consistent changes.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were no consistent changes in elasticity.”
t0“Intact maize seedlings ( Zea mays L.)”
Claim · model-written summary
The authors infer that decreased cell wall plasticity contributes to early leaf growth inhibition under nutrient stress.
- Outcome
- early inhibition of maize leaf growthe0
- Qualifier
- reductions in the plasticity of expanding leaf cell wallse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reductions in the plasticity of expanding leaf cell walls appear to be involved in controlling the early inhibition of maize leaf growth by root imposition of nutrient stress.”
The same questions in other papers
calcium dichloride · growth · Zea mays (maize)Positive and negative results
2 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
1 paper more in this group
See all 5 papers →fertilization · growth · Zea mays (maize)Positive and negative results
1,195 papers in the same direction as this paper · 149 in the opposite direction · 20 reporting no difference from an alternative
- no effect
- no effect
- negative
1,361 papers more in this group
See all 1,365 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.