Effect of water stress on the epicuticular wax composition and ultrastructure of cotton (Gossypium hirsutum L.) leaf, bract, and boll

Bondada, Bhaskar R.; Oosterhuis, Derrick M.; Murphy, J. Brad; Kim, Kyung Soo

doi:10.1016/0098-8472(96)00128-1

Cited by 139 publications

(98 citation statements)

References 24 publications

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“…The concentration of the wax was in accordance with the report of Bondada et al (15) i.e. from 70 μg.cm -2 to 154 μg.cm -2 from normal condition to stress conditions in cotton.…”

Section: Discussionsupporting

confidence: 73%

Molecular and Biochemical Characterization of Cotton Epicuticular Wax in Defense Against Cotton Leaf Curl Disease

et al. 2015

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“…The concentration of the wax was in accordance with the report of Bondada et al (15) i.e. from 70 μg.cm -2 to 154 μg.cm -2 from normal condition to stress conditions in cotton.…”

Section: Discussionsupporting

confidence: 73%

Molecular and Biochemical Characterization of Cotton Epicuticular Wax in Defense Against Cotton Leaf Curl Disease

et al. 2015

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“…Many investigations evidenced that the thickness of leaf wax deposits have little influence on cuticular transpiration (Riederer and Schreiber 2001), although increases of epicuticular waxes on leaves of plants under hydric stress have been observed (Bondada et al 1996). Data of Figure 2 show that the increase in the wax contents from 40 to 90 µg.cm −2 did not reduce significantly the water permeability (P > 0.05).…”

Section: Resultsmentioning

confidence: 75%

Epicuticular waxes from caatinga and cerrado species and their efficiency against water loss

Oliveira

Meirelles

Salatino

2003

An. Acad. Bras. Ciênc.

102

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The effects of the contents and chemical composition of the foliar epicuticular waxes of species from the caatinga (Aspidosperma pyrifolium, Capparis yco, Maytenus rigida and Ziziphus joazeiro) and cerrado (Aristolochia esperanzae, Didymopanax vinosum, Strychnos pseudoquina and Tocoyena formosa) were evaluated as to the resistance to water loss by means of an experimental device constructed for this purpose. In general, the waxes of the caatinga species investigated were more efficient against water loss than cerrado species. Increase of the thickness of the waxy deposits from 40 to 90µ g.cm −2 had no significant effect on the resistance to water loss. The chemistry of the wax constituents was shown to be an important factor to determine the degree of resistance to evaporation. n-Alkanes and alcoholic triterpenes were the most efficient barriers, while hentriacontan-16-one (a ketone) and ursolic acid (an acid triterpene) revealed low efficiency. The higher efficiency of the waxes of the leaves from caatinga species (mainly those of C. yco and Z. joazeiro) is probably accounted for the predominance of n-alkanes in their composition. The lower efficiency of the waxes of A. pyrifolium (caatinga), T. formosa and A. esperanzae (both species from the cerrado) is probably a consequence of the predominance of triterpenoids in the waxes of the two former species and hentriacontan-16-one in the latter.

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“…Given these factors, it might be expected that water stress would have less of an effect on fruit cuticles than on leaf cuticles. This hypothesis has yet to be tested in fleshy fruit, although water stress was reported to result in an increase in total cuticular wax levels of cotton (Gossypium hirsutum) leaves and bracts, but not bolls (Bondada et al, 1996), illustrating the potential for differences in cuticle responses to water stress. We propose that the leaf cuticle biosynthesis pathway is more sensitive to changes in ABA levels than the analogous pathway in fruits.…”

Section: Aba Deficiency Has Distinctly Different Effects On Tomato Frmentioning

confidence: 99%

Cuticle Biosynthesis in Tomato Leaves Is Developmentally Regulated by Abscisic Acid

et al. 2017

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The expansion of aerial organs in plants is coupled with the synthesis and deposition of a hydrophobic cuticle, composed of cutin and waxes, which is critically important in limiting water loss. While the abiotic stress-related hormone abscisic acid (ABA) is known to up-regulate wax accumulation in response to drought, the hormonal regulation of cuticle biosynthesis during organ ontogeny is poorly understood. To address the hypothesis that ABA also mediates cuticle formation during organ development, we assessed the effect of ABA deficiency on cuticle formation in three ABA biosynthesis-impaired tomato mutants. The mutant leaf cuticles were thinner, had structural abnormalities, and had a substantial reduction in levels of cutin. ABA deficiency also consistently resulted in differences in the composition of leaf cutin and cuticular waxes. Exogenous application of ABA partially rescued these phenotypes, confirming that they were a consequence of reduced ABA levels. The ABA mutants also showed reduced expression of genes involved in cutin or wax formation. This difference was again countered by exogenous ABA, further indicating regulation of cuticle biosynthesis by ABA. The fruit cuticles were affected differently by the ABA-associated mutations, but in general were thicker. However, no structural abnormalities were observed, and the cutin and wax compositions were less affected than in leaf cuticles, suggesting that ABA action influences cuticle formation in an organdependent manner. These results suggest dual roles for ABA in regulating leaf cuticle formation: one that is fundamentally associated with leaf expansion, independent of abiotic stress, and another that is drought induced.

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Effect of water stress on the epicuticular wax composition and ultrastructure of cotton (Gossypium hirsutum L.) leaf, bract, and boll

Cited by 139 publications

References 24 publications

Molecular and Biochemical Characterization of Cotton Epicuticular Wax in Defense Against Cotton Leaf Curl Disease

Molecular and Biochemical Characterization of Cotton Epicuticular Wax in Defense Against Cotton Leaf Curl Disease

Epicuticular waxes from caatinga and cerrado species and their efficiency against water loss

Cuticle Biosynthesis in Tomato Leaves Is Developmentally Regulated by Abscisic Acid

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