Ultrastructural studies on the sporogenous tissue and anther wall of Leucojum aestivum (Amaryllidaceae) in different developmental stages
Document title: Ultrastructural studies on the sporogenous tissue and anther wall of Leucojum aestivum (Amaryllidaceae) in different developmental stages
Journal: Anais da Academia Brasileira de Ciencias
Database: PERIÓDICA
System number: 000366633
ISSN: 0001-3765
Authors: 1
2
Institutions: 1Trakya University, Faculty of Education, Edirne. Turquía
2Trakya University, Faculty of Sciences, Edirne. Turquía
Year:
Season: Dic
Volumen: 84
Number: 4
Pages: 951-960
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Analítico, descriptivo
English abstract In this study, ultrastructures of anther wall and sporogenous tissue of Leucojum aestivum were investigated during different developmental stages. Cytomictic channels were seen between pollen mother cells during prophase I. Polar distribution was described in the organelle content of pollen mother cells and microspores in early phases of microsporogenesis and also in pollen mitosis. Active secretion was observed in tapetal cells. Previous reports about developmental stages of male gametophyte were compared with the results of this study
Portuguese abstract Neste estudo, ultraestruturas da parede da antera e tecido esporogênico de Leucojum aestivumforam foram investigados durante diferentes estágios do desenvolvimento. Canais citomíticos foram vistos entre células – mãe de pólen durante a prófase I. Distribuição polar foi descrita no conteúdo da organela de células – mãe de pólen e em micrósporos nas fases iniciais da microesporogênese e também na mitose do pólen. Secreção ativa foi observada nas células tapetais. Registros prévios referentes aos estágios do desenvolvimento do gametófito masculino foram comparados com os resultados deste estudo
Disciplines: Biología
Keyword: Anatomía e histología,
Angiospermas,
Anatomía vegetal,
Anteras,
Tejido esporogénico,
Ultraestructura celular,
Leucojum aestivum,
Amaryllidaceae
Keyword: Biology,
Anatomy and histology,
Angiosperms,
Plant anatomy,
Anthers,
Sporogenous tissue,
Cell ultrastructure,
Leucojum aestivum,
Amaryllidaceae
Full text: Texto completo (Ver HTML)