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Salt Tolerance of Glycinebetaine-Deficient and -Containing Maize Lines

Open access
Saneoka, H., Nagasaka, C., Hahn, D. T., Yang, W. J., Premachandra, G. S., Joly, R. J., Rhodes, D.·1995·Plant Physiology

Abstract

Pairs of homozygous near-isogenic glycinebetaine-containing (Bet1/Bet1) and -deficient (bet1/bet1) F8 lines of Zea mays L. (maize) were tested for differences in salt (150 mM NaCl or 127.25 mM NaCl plus 22.5 mM CaCl2) tolerance. The Bet1/Bet1 lines exhibited less shoot growth inhibition (as measured by dry matter accumulation, leaf area expansion rate and/or, plant height extension rate) under salinized conditions in comparison to their nearisogenic bet1/bet1 sister lines. These growth differences were associated with maintenance of a significantly higher leaf relative water content, a higher rate of carbon assimilation, and a greater turgor in Bet1/Bet1 lines than in bet1/bet1 lines under salinized conditions. These results strongly suggest that a single gene conferring glycinebetaine accumulation (and/or a tightly linked locus) plays a key role in osmotic adjustment in maize.

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Metadata

Authors
Saneoka, H., Nagasaka, C., Hahn, D. T., Yang, W. J., Premachandra, G. S., Joly, R. J., & Rhodes, D.
Venue
Plant Physiology
Published
1995-02-01
Volume
107
Issue
2
Pages
631-638
ISSN
  • 0032-0889 (ISSN-L)
  • 1532-2548
OpenAlex
W1534554177
Cited by
184
References
0
FWCI
7.57
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Salt Tolerance of Glycinebetaine-Deficient and -Containing Maize Lines. https://app.cochat.ai/papers/10.1104/pp.107.2.631
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Saneoka, H., Nagasaka, C., Hahn, D. T., Yang, W. J., Premachandra, G. S., Joly, R. J., & Rhodes, D. (1995). Salt Tolerance of Glycinebetaine-Deficient and -Containing Maize Lines. Plant Physiology. https://doi.org/10.1104/pp.107.2.631

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