Development of two isogenic sweet corn hybrids differing for glycinebetaine content.

@article{Rhodes1989DevelopmentOT,
  title={Development of two isogenic sweet corn hybrids differing for glycinebetaine content.},
  author={David Rhodes and Patrick J Rich and Dennis G. Brunk and Grace C. Ju and Judith C. Rhodes and Michael H. Pauly and Leon A. Hansen},
  journal={Plant physiology},
  year={1989},
  volume={91 3},
  pages={
          1112-21
        },
  url={https://api.semanticscholar.org/CorpusID:25628355}
}
These two isogenic hybrids are shown to differ by a factor of 300- to 400-fold in glycinebetaine titer of young expanding leaves of salinized plants, but exhibit no striking differences in the levels of free amino acids or the level of N-methylnicotinic acid (nicotinIC acid betaine; trigonelline).
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19 References

Preliminary Genetic Studies of the Phenotype of Betaine Deficiency in Zea mays L.

Evidence is presented from both greenhouse and field evaluations of F(2) populations of these hybrids that a single nuclear recessive gene is most likely responsible for the phenotype of betaine-deficiency in inbred 1506 and segregation patterns with respect to betaine:amino acid ratio suggest a 1:2:1 segregation ratio for homozygous recessive:heterozygous:homozygous dominant individuals within the 1146 x 1506-F(2).

Genetic Evidence for an Osmoregulatory Function of Glycinebetaine Accumulation in Barley

Betaine level in barley was altered genetically by creating two F4 isopopulations with different mean betaine levels, and the osmoregulatory behaviour of these populations and of their parents was examined under saline conditions to imply that betaine accumulation is a mandatory component of os moregulation in barley.

Differences between Two Grain Sorghum Genotypes in Adaptation to Drought Stress. III* Physiological Responses

A sorghum hybrid giving a higher yield under rain-fed systems of production was studied to examine the physiological basis of this effect and indicated that osmoregulation enabled photosynthesis to continue and that a significant amount of the resultant assimilate may have been diverted to root growth.

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Salt Stress and Comparative Physiology in the Gramineae. III. Effect of Salinity Upon Ion Relations and Glycinebetaine and Proline Levels in Spartina × townsendii

The shoot glycineBetaine content rose in response to external salinity and the accumulation of glycinebetaine was highly correlated with the increase in sap osmotic pressure, and proline levels were much lower than those of glycinabetaine and became quantitatively significant only in shoots exposed to high inhibitory salinities.

Quaternary ammonium compounds in plants in relation to salt resistance

Accumulation of Glycinebetaine in Chloroplasts Provides Osmotic Adjustment During Salt Stress

    P. Simon
    Environmental Science, Biology
  • 1986
The results demonstrate that glycinebetaine accumulates in chloroplasts to provide osmotic adjustment during salt stress and provide support for the hypothesis that glycinbetaine is a compatible cy toplasmic solute which may be preferentially located in the cytoplasm of cells.

Variations in free protein amino acid compositions of grass leaves

Radiotracer evidence implicating phosphoryl and phosphatidyl bases as intermediates in betaine synthesis by water-stressed barley leaves.

The results are qualitatively consistent with a precursor-to-product relationship between phosphatidylcholine and betaine and that a marked decrease in the half-life of this metabolically active phosphatidsyllcholine fraction accompanies wilting.

Plant Productivity and Environment

An analysis of major U.S. crops shows that there is a large genetic potential for yield that is unrealized because of the need for better adaptation of the plants to the environments in which they…