|
|
|
|
|
| Silva,Alexandre Coletto da; Kinupp,Valdely Ferreira; Absy,Maria Lucia; Kerr,Warwick Estevam. |
| The Solanaceae family has a wide distribution, mainly in the tropical and subtropical areas of South America. Solanum L. is one of the most important genera of the family with approximately 1,200 species. The objective of this work was to study the floral biology, pollen morphology as well as to investigate the bee visitors of S. stramoniifolium. Preliminary data indicate the presence of one species of stinging bee and four species of stingless bees as visitors to S. stramoniifolium. The pollen of S. stramoniifolium is tricolporate and psilate or without ornamentation. In a word, S. stramoniifolium constitutes a potential source of pollen for different species of bees with and without sting, providing an interesting field for germination studies,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solanum stramoniifolium; Bees; Pollen; Pollination; Acetolysis. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062004000300022 |
| |
|
|
| Nunes,Renata de Castro; Bustamante,Fernanda de Oliveira; Techio,Vânia Helena; Mittelmann,Andréa. |
| Study and characterization of pollen grains are essential for different areas, especially taxonomy, genetic improvement, phylogeny, and paleobotany. As yet, there are no reports on pollen morphology of genotypes of naturalized Lolium multiflorum Lam., introduced cultivars or breeding populations, diploid or polyploid. Ten genotypes of annual ryegrass (L. multiflorum) were evaluated for the viability of pollen grains using propionic carmine and Alexander's stains, while morphology was assessed by the acetolysis technique. Measures of polar axis (P), equatorial diameter (E), exine thickness, and analysis of pollen grains were obtained by scanning electron microscopy (SEM). All genotypes showed high rate of pollen viability (> 89%) for both stains. There... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Scanning electron microscopy; Ryegrass; Acetolysis. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000200006 |
| |
|
|
|
