Cellular alterations during accelerated aging of French bean seeds.

Begnami C.N.; Cortelazzo A.L.

Cellular alterations during accelerated aging of French bean seeds.

1996

Begnami C.N. | Cortelazzo A.L.

Seeds of Phaseolus vulgaris L. were artificially aged by exposing them to 42 deg C and 100 % relative humidity during one to sixteen days. The percentage of germination decreased from 100 % at 0-4 days of accelerated aging (AA) to 22 % at six days and finally to 0 % after 16 days of AA, while the average germination period increased as the AA period was prolonged. The in situ analyses and dosages of storage material revealed a disorganization and partial loss of the protein content during this period. A large number of very small starch grains suggests that degradation occured of this storage material during AA, in spite of the dosages obtained by the Anthrone method which were not significantly different. The nuclei became pyknotic in 81 % of the cells analyzed after 16 days of AA. The nucleoli disappeared during this period, also confirming the viability loss of cotyledon cells during aging.

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AGROVOC Keywords

aging air temperature almacenamiento de semillas amidon cells cellule contenido proteico cotiledones cotyledons envejecimiento germinability humedad relativa noyau cellulaire nucleo nucleolus nucleus phaseolus vulgaris poder germinativo protein content relative humidity seed seed storage seed treatment semence semillas starch stockage des semences temperatura del aire traitement des semences tratamiento de semillas viabilidad viability vieillissement

Bibliographic information

Published in

Seed Science and Technology (Switzerland). v. 24(2).

ISSN 0251-0952

Other Subjects

Nucleolos; Nucleole; Cotyledon; Teneur en proteines; Celulas; Humidite relative; Faculte germinative; Viabilite; Almidon; Temperature de l' air

Language

English

Note

1 graph, 3 photos, 27 ref. Summary (En). AVAILABILITY: University Microfilms International, 300 North Zeeb Road, Box 91, Ann Arbor, MI 48106, USA.

Type

Monograph; Summary; Non Conventional; Non-Conventional

Corporate Author

Universidade Estadual de Campinas, Campinas (Brazil). Departamento de Biologia Celular

In AGRIS since: 2012-11-15

Format: AGRIS AP

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Cellular alterations during accelerated aging of French bean seeds.

1996

AGROVOC Keywords

Bibliographic information