Biogenesis of the compound seed protein storage vacuole
Refereed conference paper presented and published in conference proceedings

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AbstractSeeds accumulate and store proteins in protein storage vacuoles (PSVs) during their development and maturation. These stored proteins are then rapidly degraded to provide nutrients for the development of the seedlings during seed germination. PSVs in most seeds, including tobacco (Nicotiana tabacum L.), contain three morphologically distinct subcompartments: matrix, crystalloid and globoid. The first two are storage compartments, while the third represents a lytic compartment. The mechanisms by which these PSV subcompartments are formed and packed within a single membrane-bound PSV are unknown. Several marker proteins have been used to specifically define PSVs and their subcompartments. alpha- and delta-tonoplast intrinsic proteins (TIPs) are used as markers for the PSV tonoplast, while the dark intrinsic protein (DIP) and vacuolar pyrophosphatase (V-PPase) are used as markers for the crystalloid and globoid subcompartments, respectively. Recent studies have also demonstrated that the formation of the PSV and its subcompartments are regulated during seed development. PSV biogenesis during seed development is currently being studied using established markers as probes, and the tobacco seed as a model system. The long-term goal of this research is to elucidate the mechanism underlying PSV assembly during seed development and provide novel information on PSV biogenesis and function.
All Author(s) ListTse YC, Wang J, Miao Y, Jiang L
Name of Conference8th International Workshop on Seeds
Start Date of Conference01/05/2005
Place of ConferenceBrisbane
Country/Region of ConferenceAustralia
Detailed descriptionEdited by S Navie, S. Adkins and S. Ashmore.
Pages112 - 119
LanguagesEnglish-United Kingdom
Web of Science Subject CategoriesAgricultural Engineering; Agriculture; Biology; Life Sciences & Biomedicine - Other Topics

Last updated on 2020-15-07 at 01:23