Leaf blade anatomy and ultrastructure of six Simira species (Rubiaceae) from the Atlantic Rain Forest, Brazil



Document title: Leaf blade anatomy and ultrastructure of six Simira species (Rubiaceae) from the Atlantic Rain Forest, Brazil
Journal: Biocell
Database: PERIÓDICA
System number: 000324476
ISSN: 0327-9545
Authors: 1
2
2
1
1
Institutions: 1Universidade Estadual do Norte Fluminense, Centro de Biociencias e Biotecnologia, Campos dos Goytacazes, Rio de Janeiro. Brasil
2Instituto de Pesquisas Jardim Botanico do Rio de Janeiro, Diretoria de Pesquisas, Rio de Janeiro. Brasil
Year:
Season: Dic
Volumen: 33
Number: 3
Pages: 155-165
Country: Argentina
Language: Inglés
Document type: Artículo
Approach: Experimental, aplicado
English abstract Simira is a predominantly woody Neotropical genus comprising 41 taxa, 16 of which occur in Brazil and eight of them in the southeastern region of Brazil. Leaf blades of Simira eliezeriana Peixoto, S. glaziovii (K. Schum.) Steyerm., S. grazielae Peixoto, S. pikia (K. Schum.) Steyerm., S. rubra (Mart.) Steyerm., S. sampaioana (Standl.) Steyerm. were collected in the southeastern region of Brazil and fixed according to usual methods for light and electron microscopy. The leaf blades show typical characteristics of the Rubiaceae family as dorsiventral mesophyll and paracytic stomata. The presence of two bundle sheaths that extend to the upper epidermal layer, prismatic crystal and crystal-sand, alkaloids in the mesophyll and the organization micromorphological of the outer periclinal wall are considered characteristics representative for the genus. This study also demonstrates some leaf blade characteristics that can be used to Simira species identification (leaf surface, domatia types, epicuticular wax types and patterns of epidermis anticlinal cell walls)
Disciplines: Biología
Keyword: Anatomía e histología,
Angiospermas,
Anatomía foliar,
Ultraestructura,
Simira,
Rubiaceae
Keyword: Biology,
Anatomy and histology,
Angiosperms,
Leaf anatomy,
Ultrastructure,
Simira,
Rubiaceae
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