1985
DOI: 10.1007/bf00044753
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Stress metabolites and their role in coastal plants

Abstract: The stress metabolites proline, glycine betaine and sorbitol were accumulated in the leaves of some angiosperms from sand dunes and shingle. Chloride, where it was measured, was not accumulated to high concentrations in leaves suggesting that these soils are not saline. Sand dunes and shingle soils have low water-holding capacity, so it is possible that solute accumulation was a response to drought which could be of adaptive significance. In sand dunes low water availability could be associated with increased … Show more

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Cited by 38 publications
(14 citation statements)
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“…The pathway involves phosphorylation of mannitol to mannitol 1-phosphate, which is oxidized to fructose 6-phosphate by the mtlD product (Fig. 5) (13,14). Studies of sugar alcohols in general have shown that these compounds accumulate in many higher plant species in response to water or salt stress (see ref.…”
Section: Discussionmentioning
confidence: 99%
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“…The pathway involves phosphorylation of mannitol to mannitol 1-phosphate, which is oxidized to fructose 6-phosphate by the mtlD product (Fig. 5) (13,14). Studies of sugar alcohols in general have shown that these compounds accumulate in many higher plant species in response to water or salt stress (see ref.…”
Section: Discussionmentioning
confidence: 99%
“…8 for review). Furthermore, in vitro experiments with enzyme extracts of higher plants have indicated that sugar alcohols may alleviate the effects of temperature on protein lability (14,15). However, such physiological experiments, by their design, rely on pathways that are endogenous to the plants studied.…”
Section: Discussionmentioning
confidence: 99%
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“…Thus, plants suffering drought stress are often subject to high tempera tures as well (see Section IID) and there is evidence that proline and related stress metab olites can improve the heat stability of certain enzymes. For example, in the sand dune plant, Ammophila arenaria, the proline present increases the heat stability of glutamine synthetase and glutamateioxalacetate aminotransferase, the two key enzymes of ammo nium assimilation in plants (Smimoff and Stewart, 1985).…”
Section: F Adaptation To Droughtmentioning
confidence: 99%