Leaf domatia in montane forest and Caatinga in the semiarid of Pernambuco State: Morphology and ecological implications



Document title: Leaf domatia in montane forest and Caatinga in the semiarid of Pernambuco State: Morphology and ecological implications
Journal: Acta scientiarum. Biological sciences
Database: PERIÓDICA
System number: 000391154
ISSN: 1679-9283
Authors: 1
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Institutions: 1Universidade Federal Rural de Pernambuco, Unidade Academica de Serra Talhada, Serra Talhada, Pernambuco. Brasil
Year:
Season: Jul-Sep
Volumen: 36
Number: 3
Pages: 327-332
Country: Brasil
Language: Inglés
Document type: Nota breve o noticia
Approach: Analítico, descriptivo
English abstract Leaf domatia are cavity-shaped structures of different types or tufts of hairs located at the junction between ribs on the abaxial surface of the leaf blades of various families of angiosperms, serving as protection against phytophagous organisms by harboring beneficial mites, suggesting a mutualistic relationship. There is shortage of inventories of species with such structures; thus the present study examined native woody plant in two habitats of the backwoods of Pernambuco to identify the types of leaf domatia. 86 species were observed, 43 in Caatinga area, out of which five had domatia, and 43 in the montane forest, 11 species with domatia. Four types of domatia were observed: hairtufts, pocket, pit and revolute margin. There was predominance of plant species with leaf domatia in the area Carro Quebrado in Triunfo, Pernambuco State. These results corroborate the information available in the literature in which domatia are prevalent in more humid environments, and that these structures as micro-habitats influence the maintenance of diverse organisms
Portuguese abstract Domácias foliares são estruturas em forma de cavidades de diferentes tipos ou tufos de tricomas localizados na junção entre as nervuras, na face abaxial das lâminas foliares de diversas famílias de angiospermas, servindo de defesa contra organismos fitófagos por abrigarem ácaros benéficos, sugerindo uma relação mutualística. Há escassez de inventários de espécies apresentando essas estruturas; diante disso, o presente estudo analisou plantas lenhosas nativas em dois ambientes do sertão de Pernambuco, visando identificar os tipos de domácias foliares. Foram observadas 86 espécies, 43 em área de Caatinga em as quais cinco apresentaram domácias e 43 no brejo de altitude, 11 espécies com domácias. Foram encontrados quatro tipos de domácias: tufo de pelos, bolso, cova e orla. Na área do Carro Quebrado, Triunfo, Estado do Pernambuco, as plantas com domácias foliares foram predominantes. Estes resultados corroboram as informações disponíveis na literatura de que domácias são predominantes em ambientes mais úmidos, e que essas estruturas como micro-habitats, influenciam a manutenção de diversos organismos
Disciplines: Biología
Keyword: Anatomía e histología,
Ecología,
Fisiología vegetal,
Caatinga,
Bosque montano,
Pernambuco
Keyword: Biology,
Anatomy and histology,
Ecology,
Plant physiology,
Caatinga,
Montane forest,
Pernambuco
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