Germination and seedling morphology of four South American Smilax (Smilacaceae)

Autor(es)

Martins, Aline Redondo ^[1] ; Soares, Anielca Nascimento ^[2] ; Bombo, Aline Bertolosi ^[2] ; Fidelis, Alessandra ^[3] ; da Luz Coelho Novembre, Ana Dionisia ^[4] ; da Gloria, Beatriz Appezzato ^[2]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Inst Biol, BR-13083970 Campinas, SP - Brazil

^[2] Univ Sao Paulo, Dept Biol Sci, Escola Super Agr Luiz de Queiroz, BR-13418900 Piracicaba, SP - Brazil

^[3] Univ Sao Paulo, Dept Ecol, BR-05508900 Sao Paulo - Brazil

^[4] Univ Sao Paulo, Dept Crop Sci, Escola Super Agr Luiz de Queiroz, BR-13418900 Piracicaba, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Revista de Biología Tropical; v. 60, n. 1, p. 495-504, MAR 2012.
• Citações Web of Science: 2

Resumo

Species of Smilax,, also known as greenbrier, are widely distributed in Brazil and their commercial trades are carried out by the extractivism of native species. We the aim to provide information about the germination and development of seedlings in four Smilax species, different experiments were developed under controlled conditions. We evaluated two germination treatments: temperature (30 degrees C and 20-30 degrees C) and light (presence/absence), and for few cases the tetrazolium treatment was applied. A different treatment response was observed among the studied species. Light had a significant influence in S. brasiliensis, with the highest germination rates at 20-30 C in dark conditions. S. campestris showed significant differences among temperature treatments, but not to light; while S. cissoides showed high germination rates (66-78%), independently of treatment. However, S. polyantha had low germination rates (19-24%). After one year, the expanded leaves showed different characteristics among the studied species. Leaves of S. brasiliensis were ovate, coriaceous, three main veins and prickle-like structures only on the midrib on abaxial face. S. campestris leaves were oblong, coriaceous and prickle-like structures were located at the leaf midrib and margin. S. cissoides had ovate-elliptic, membranaceous leaves, with three main veins with prickle-like structures on the abaxial face. S. polyantha leaves showed ovate-elliptic. coriaceous leaves, with three main veins, translucent secondary veins and no prickle-like structures. A seedling identification key was elaborated based on morphological characteristics. Rev. Biol. Trop. 60 (1): 495-504. Epub 2012 March 01. (AU)

• Processo FAPESP: 05/54984-5 - Morfoanatomia dos órgãos vegetativos e perfil químico de espécies do gênero Smilax L. (Smilacaceae)
• Beneficiário: Aline Redondo Martins
• Linha de fomento: Bolsas no Brasil - Doutorado
• Processo FAPESP: 05/58964-9 - Morfoanatomia dos órgãos vegetativos e perfil químico de espécies do gênero Smilax L. (Smilacaceae)
• Beneficiário: Beatriz Appezzato da Glória
• Linha de fomento: Auxílio à Pesquisa - Programa BIOTA - Regular