Seedling structure of Euphorbia L. and Chamaesyce Gray species



Document title: Seedling structure of Euphorbia L. and Chamaesyce Gray species
Journal: Acta scientiarum. Biological sciences
Database: PERIÓDICA
System number: 000374914
ISSN: 1679-9283
Authors: 1
1
1
1
Institutions: 1Universidade Estadual de Maringa, Departamento de Biologia, Maringa, Parana. Brasil
Year:
Season: Ene-Mar
Volumen: 36
Number: 1
Pages: 95-99
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, aplicado
English abstract Chamaesyce prostrata (Aiton) Small, Euphorbia heterophylla L. and Euphorbia graminea Jacq. are weedy species that occur with relative frequency in the region of Maringá, Paraná State, Brazil. Data about the morphology and anatomy of seedlings of these species were obtained, with emphasis on significant structural differences of seedlings between species of Euphorbia and Chamaesyce. Seedlings are phanerocotylar and epigeal. Root is axial and triarch. Cotyledons are leaf-like and dorsiventral. Eophylls and prophylls are simple and dorsiventral. Morphological variations occur in the cotyledon shape of Euphorbia seedlings. It is remarkable the Kranz structure of leaves that occurs only in Chamaesyce
Portuguese abstract Chamaesyce prostrata (Aiton) Small, Euphorbia heterophylla L. e E. graminea Jacq. (Euphorbiaceae) são espécies invasoras frequentes na região de Maringá, Paraná. Foram obtidos dados sobre a morfologia e anatomia das plântulas dessas espécies, com ênfase se há caracteres estruturais significativos das plântulas entre as espécies de Euphorbia e Chamaesyce. As plântulas são fanerocotiledonares e epígeas. A raiz é axial e triarca. Os cotilédones são foliáceos e dorsiventrais. Os eofilos e profilos são folhas simples e dorsiventrais. As variações mofológicas ocorrem no formato dos cotilédones das plântulas de Euphorbia. Sob o aspecto anatômico é especialmente notável a estrutura Kranz das folhas que ocorrem somente em Chamaesyce
Disciplines: Biología
Keyword: Angiospermas,
Anatomía vegetal,
Malezas,
Plántulas,
Morfología,
Estudios comparativos,
Chamaesyce prostrata,
Euphorbia heterophylla,
Euphorbia graminea,
Euphorbiaceae
Keyword: Biology,
Angiosperms,
Plant anatomy,
Weeds,
Seedlings,
Morphology,
Comparative studies,
Chamaesyce prostrata,
Euphorbia heterophylla,
Euphorbia graminea,
Euphorbiaceae
Full text: Texto completo (Ver PDF)