Abstract
Abstract The leaf cell wall (CW) chemical composition of three maize ( Zea mays L.) hybrids (salt‐resistant SR 03 and SR 12, salt‐sensitive Pioneer 3906) was investigated in the first phase of salt stress (100 m m NaCl) compared with the control (1 m m NaCl) treatment to investigate whether changes in CW composition were responsible for shoot growth reduction. Salt treatment caused a strong inhibition in shoot growth with a concomitant increase in the ratio between CW dry mass (DM) and shoot fresh mass (FM) and a decrease in CW cellulose concentrations in all hybrids. NaCl caused a large increase in the concentrations of total and non‐methylated uronic acid (UA) in salt‐sensitive Pioneer 3906 and salt‐resistant SR 12. The onset of the accumulation of non‐methylated UA was delayed in SR 12, which indicates that this may be one reason for the better growth performance of this hybrid under salt stress compared with Pioneer 3906. It is concluded that a low accumulation of non‐methylated UA in leaf CW may, among other mechanisms, contribute to salt resistance in the first phase of salt stress.
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Claims 7
Claim · model-written summary
Salt inhibited shoot growth in all hybrids.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salt treatment caused a strong inhibition in shoot growth with a concomitant increase in the ratio between CW dry mass (DM) and shoot fresh mass (FM) and a decrease in CW cellulose concentrations in all hybrids”
t0“Maize”
Claim · model-written summary
Salt increased the ratio of cell wall dry mass to shoot fresh mass in all hybrids.
- Treatment
- Salt treatmente0
- Outcome
- ratio between CW dry mass (DM) and shoot fresh mass (FM)e0
- Direction
- increasee0
- Qualifier
- all hybridse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salt treatment caused a strong inhibition in shoot growth with a concomitant increase in the ratio between CW dry mass (DM) and shoot fresh mass (FM) and a decrease in CW cellulose concentrations in all hybrids”
t0“Maize”
Claim · model-written summary
Salt decreased cell wall cellulose concentrations in all hybrids.
- Treatment
- Salt treatmente0
- Outcome
- CW cellulose concentrationse0
- Direction
- decreasee0
- Qualifier
- all hybridse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salt treatment caused a strong inhibition in shoot growth with a concomitant increase in the ratio between CW dry mass (DM) and shoot fresh mass (FM) and a decrease in CW cellulose concentrations in all hybrids”
t0“Maize”
Claim · model-written summary
NaCl increased total uronic acid concentrations in Pioneer 3906 and SR 12.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl caused a large increase in the concentrations of total and non‐methylated uronic acid (UA) in salt‐sensitive Pioneer 3906 and salt‐resistant SR 12”
t0“Maize”
Claim · model-written summary
NaCl increased non-methylated uronic acid concentrations in Pioneer 3906 and SR 12.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl caused a large increase in the concentrations of total and non‐methylated uronic acid (UA) in salt‐sensitive Pioneer 3906 and salt‐resistant SR 12”
t0“Maize”
Claim · model-written summary
Non-methylated uronic acid accumulation began later in SR 12.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The onset of the accumulation of non‐methylated UA was delayed in SR 12”
t0“Maize”
Claim · model-written summary
Low accumulation of non-methylated uronic acid may contribute to early salt resistance.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a low accumulation of non‐methylated UA in leaf CW may, among other mechanisms, contribute to salt resistance in the first phase of salt stress”
t0“Maize”
The same questions in other papers
salinity · growth · Zea mays (maize)Positive and negative results
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