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Morphoanatomy of the stem in Cyperaceae Acta Botanica
Rodrigues,Ana Claudia; Estelita,Maria Emília Maranhão.
Cyperaceae are usually perennial, with underground stems mainly rhizomatous, however, other stem types may also occur, such as corms and tubers. The underground stems of five Cyperaceae species were examined. Cyperus rotundus and Fuirena umbellata have plagiotropic rhizomes, while C. esculentus, C. odoratus, Hypolytrum schraderianum and Bulbostylis paradoxa have orthotropic rhizomes. Corms occur in C. rotundus and C. esculentus, and stolons in C. esculentus. The primary body originates from the activity of the apical meristem and later, from the primary thickening meristem (PTM). Secondary growth results from secondary thickening meristem (STM) activity, and occurs in rhizomes of H. schraderianum, B. paradoxa, C. odotarus and F. umbellata. The procambium...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bulb; Corm; Primary thickening meristem; Rhizome; Secondary thickening meristem; Stolon.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062009000300030
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Vegetative propagation in Piperaceae species BABT
Souza,Luiz Antonio de; Moscheta,Ismar Sebastião; Mourão,Káthia Socorro Mathias; Albiero,Adriana Lenita Meyer; Iwazaki,Maísa de Carvalho; Oliveira,Jonathas Henrique Georg de; Rosa,Sônia Maciel da.
Piperaceae species of forest remnants of Maringá, Paraná, Brazil present vegetative propagation through root or stem (stolon). This reproduction type was verified in Piper amalago L., P. arboreum Aublet, P. xylosteoides (Kunth) Steud., Peperomia parnassifolia Miq. and Ottonia martiana Miq. Root and stem branches of these species were analyzed anatomically. Results indicated that the vegetative propagation in Piperaceae should be studied in other forests. New and additional studies should be made if the structural variations were induced environmentally or fixed genetically.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Piperaceae; Vegetative reproduction; Stolon; Stem; Root.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000600006
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