Bulliform cells in Loudetiopsis chrysothrix (Nees) Conert and Tristachya leiostachya Nees (Poaceae): structure in relation to function
Document title: Bulliform cells in Loudetiopsis chrysothrix (Nees) Conert and Tristachya leiostachya Nees (Poaceae): structure in relation to function
Journal: Brazilian archives of biology and technology
Database: PERIÓDICA
System number: 000331210
ISSN: 1516-8913
Authors: 1
2
1
Institutions: 1Universidade Estadual Paulista "Julio de Mesquita Filho", Instituto de Biociencias, Botucatu, Sao Paulo. Brasil
2Universidade Federal Rural do Rio de Janeiro, Instituto de Biologia, Seropedica, Rio de Janeiro. Brasil
Year:
Season: Ene-Feb
Volumen: 51
Number: 1
Pages: 113-119
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, aplicado
English abstract This work reports anatomic and ultrastructural characteristics of bulliform cells in Loudetiopsis chrysothrix (Nees) Conert and Tristachya leiostachya Nees. Both the species presented leaf rolling under water stress. The main characteristics observed in these cells were: periclinal wall thinner than the adjacent epidermal wall; abundance of pectic substances in cuticular layer; sinuous anticlinal walls with ramified plasmodesmata; vacuome formed by a developed vacuole or innumerous small vacuoles; abundance of phenolic substances and oil drops. These characteristics suggested the involvement of bulliform cells in the mechanism of foliar involution in the studied species
Portuguese abstract Este trabalho relata as características anatômicas e ultra-estruturais das células buliformes em Loudetiopsis chrysothrix (Nees) Conert e Tristachya leiostachya Nees. Ambas as espécies apresentam enrolamento foliar em condições de estresse hídrico. As principais características observadas nessas células foram: paredes periclinais mais delgadas que as epidérmicas adjacentes; abundância de substâncias pécticas na camada cuticular; paredes anticlinais sinuosas com plasmodesmas ramificados; vacuoma formado por um vacúolo desenvolvido ou inúmeros vacúolos pequenos; abundância de substâncias fenólicas e gotas de óleo dispersas. As características observadas sugerem o envolvimento das células buliformes no mecanismo de involução foliar nas espécies estudadas
Disciplines: Biología
Keyword: Angiospermas,
Fisiología vegetal,
Células buliformes,
Ultraestructura,
Estrés hídrico,
Enrollamiento foliar,
Loudetiopsis chrysothrix,
Tristachya leiostachya
Keyword: Biology,
Angiosperms,
Plant physiology,
Bulliform cells,
Ultrastructure,
Water stress,
Leaf rolling,
Loudetiopsis chrysothrix,
Tristachya leiostachya
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