Chilling-induced changes in the apoplastic solution of tomato pericarp

• Tipo: Artigo em Revista Científica Internacional
• Data: 2010

Autores

Domingos Almeida (Autor) FCUP; D.J. Huber (Autor) Outra

Revista

Título: JOURNAL OF HORTICULTURAL SCIENCE & BIOTECHNOLOGY

Vol. 85

Páginas: 312-316

ISSN: 0022-1589

Editora: HEADLEY BROTHERS LTD

Indexação

ISI Web of Science

Classificação Científica

FOS: Ciências agrárias > Outras ciências agrárias

CORDIS: Ciências Naturais > Ciências agrárias

Outras Informações

Abstract (EN): Low-temperature storage of chilling-sensitive commodities affects membrane function and is likely to induce changes in the apoplastic environment. Mature-green tomato (Solanum lycopersicum L.) fruit were stored at 5 degrees C for 14 d, then transferred to 15 degrees C for an additional 6 d. Low-temperature storage induced acidification and a slight increase in the osmolality of pressure-extracted tomato apoplastic fluid. The apoplastic levels of cations such as K+, Ca2+, and Mg2+ remained constant during low-temperature storage, but decreased upon transfer of fruit to 15 degrees C following low-temperature storage. These changes in apoplastic cations paralleled the changes observed in electrolyte leakage. Apoplastic pH and mineral concentrations were altered in chill-injured fruit, but the small changes observed in osmolality provide evidence against severe membrane dysfunction in chill-injured fruit

Idioma: Inglês

Tipo (Avaliação Docente): Científica