Biophysical and biochemical characteristics of cutin, a plant barrier biopolymer.
نویسنده
چکیده
Cutin is a support biopolyester involved in waterproofing the leaves and fruits of higher plants, regulating the flow of nutrients among various plant cells and organs, and minimizing the deleterious impact of pathogens. Despite the complexity and intractable nature of this biopolymer, significant progress in chemical composition, molecular architecture and, more recently, biosynthesis have been made in the past 10 years. This review is focused in the description of these advances and their physiological impacts to improve our knowledge on plant cutin, an unusual topic in most plant physiology and biochemistry books and reviews.
منابع مشابه
Cutin synthesis: A slippery paradigm.
Despite its biological importance, the mechanism of construction of cutin, the polymer matrix of plant cuticles, has not yet been elucidated. Recently, progress on lipid barrier formation of polymers such as cutin and suberin has been recently reviewed by Pollard et al. In their review the authors state that the ubiquitous cutin is the least understood of the plant extracellular polymers and th...
متن کاملNMR studies of molecular structure in fruit cuticle polyesters.
The cuticle of higher plants functions primarily as a protective barrier for the leaves and fruits, controlling microbial attack as well as the diffusion of water and chemicals from the outside environment. Its major chemical constituents are waxes (for waterproofing) and cutin (a structural support polymer). However, the insolubility of cutin has hampered investigations of its covalent structu...
متن کاملMolecular characterization of the plant biopolyester cutin by AFM and spectroscopic techniques.
Atomic force microscopy, FT-IR spectroscopy, and solid-state nuclear magnetic resonance have been used to improve our current knowledge on the molecular characteristics of the biopolyester cutin, the main component of the plant cuticle. After comparison of samples of cutin isolated from young and mature tomato fruit cuticles has been possible to establish different degrees of cross-linking in t...
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co-hydroxyfatty acids1}. Most plant pathogenic fungi invade their hosts by breaching the intact plant surface, and the cuticle including the polymeric cutin comprises the first barrier to be penetrated. For several host-pathogen interactions it has been demonstrated that cutin-hydrolyzing enzymes excreted by the invading pathogen are a crucial requirement for the penetration of plant cuticles2>...
متن کاملA functional cutin matrix is required for plant protection against water loss.
The plant cuticle, a cutin matrix embedded with and covered by wax, seals the aerial organ's surface to protect the plant against uncontrolled water loss. The cutin matrix is essential for the cuticle to function as a barrier to water loss. Recently, we identified from wild barley a drought supersensitive mutant, eibi1, which is caused by a defective cutin matrix as the result of the loss of fu...
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ورودعنوان ژورنال:
- Biochimica et biophysica acta
دوره 1620 1-3 شماره
صفحات -
تاریخ انتشار 2003