Development of pollen grains in Forastero peach cultivar (Prunus persica Batsch)

Microsporogenesis, microgametogenesis and the morphology of mature pollen grains of the Forastero peach cultivar are described. This process started in winter, when the mean temperature was 5.6°C. Some aborted microspore mother cells were observed in the archesporium of anthers. Tapetal cells were b...

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Detalles Bibliográficos
Autores principales: Radice, S., Galati, B.
Formato: JOUR
Materias:
'Forastero'
Microsporogenesis
Peach
Pollen grain
Prunus persica
Prunus
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03946169_v20_n4_p275_Radice
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_03946169_v20_n4_p275_Radice
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spelling todo:paper_03946169_v20_n4_p275_Radice2023-10-03T15:34:02Z Development of pollen grains in Forastero peach cultivar (Prunus persica Batsch) Radice, S. Galati, B. 'Forastero' Microsporogenesis Peach Pollen grain Prunus persica Prunus Prunus persica Microsporogenesis, microgametogenesis and the morphology of mature pollen grains of the Forastero peach cultivar are described. This process started in winter, when the mean temperature was 5.6°C. Some aborted microspore mother cells were observed in the archesporium of anthers. Tapetal cells were bi-nucleate and numerous micro vacuoles and oil droplets were present in their cytoplasm. Mature pollen grains were observed some days before anthesis, approximately one month later than the differentiation of microspores. Vegetative cell showed a dense cytoplasm with abundant lipids, proteins and some amyloplasts containing one or two starch grains. Mitochondria were present in a high proportion with two different structures, some of them with well developed cristae and other ones with little or without discernible cristae. The amount of pollen grains observed within mature anthers, was not uniform. Anthers with numerous pollen grains and other ones with few or without pollen grains were observed. A great amount of abnormal pollen grains were present in the 'Forastero' anthers, like pollen grains without pore regions and with different types of exine and columellae disposition. Fil:Radice, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Galati, B. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03946169_v20_n4_p275_Radice
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic 'Forastero'
Microsporogenesis
Peach
Pollen grain
Prunus persica
Prunus
Prunus persica
spellingShingle 'Forastero'
Microsporogenesis
Peach
Pollen grain
Prunus persica
Prunus
Prunus persica
Radice, S.
Galati, B.
Development of pollen grains in Forastero peach cultivar (Prunus persica Batsch)
topic_facet 'Forastero'
Microsporogenesis
Peach
Pollen grain
Prunus persica
Prunus
Prunus persica
description Microsporogenesis, microgametogenesis and the morphology of mature pollen grains of the Forastero peach cultivar are described. This process started in winter, when the mean temperature was 5.6°C. Some aborted microspore mother cells were observed in the archesporium of anthers. Tapetal cells were bi-nucleate and numerous micro vacuoles and oil droplets were present in their cytoplasm. Mature pollen grains were observed some days before anthesis, approximately one month later than the differentiation of microspores. Vegetative cell showed a dense cytoplasm with abundant lipids, proteins and some amyloplasts containing one or two starch grains. Mitochondria were present in a high proportion with two different structures, some of them with well developed cristae and other ones with little or without discernible cristae. The amount of pollen grains observed within mature anthers, was not uniform. Anthers with numerous pollen grains and other ones with few or without pollen grains were observed. A great amount of abnormal pollen grains were present in the 'Forastero' anthers, like pollen grains without pore regions and with different types of exine and columellae disposition.
format JOUR
author Radice, S.
Galati, B.
author_facet Radice, S.
Galati, B.
author_sort Radice, S.
title Development of pollen grains in Forastero peach cultivar (Prunus persica Batsch)
title_short Development of pollen grains in Forastero peach cultivar (Prunus persica Batsch)
title_full Development of pollen grains in Forastero peach cultivar (Prunus persica Batsch)
title_fullStr Development of pollen grains in Forastero peach cultivar (Prunus persica Batsch)
title_full_unstemmed Development of pollen grains in Forastero peach cultivar (Prunus persica Batsch)
title_sort development of pollen grains in forastero peach cultivar (prunus persica batsch)
url http://hdl.handle.net/20.500.12110/paper_03946169_v20_n4_p275_Radice
work_keys_str_mv AT radices developmentofpollengrainsinforasteropeachcultivarprunuspersicabatsch
AT galatib developmentofpollengrainsinforasteropeachcultivarprunuspersicabatsch
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