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| Scorza,Livia C.T.; Dornelas,Marcelo Carnier. |
| The flowers of the species belonging to the genus Passiflorashow a range of features that are thought to have arisen as adaptations to different pollinators. Some Passiflora species belonging to the subgenus Decaloba sect. Xerogona, show touch-sensitive motile androgynophores. We tested the role of auxin polar transport in the modulation of the androgynophore movement by applying auxin (IAA) or an inhibitor of auxin polar transport (NPA) in the flowers. We recorded the movement of the androgynophore during mechano-stimulation and analyzed the duration, speed, and the angle formed by the androgynophore before and after the movement, and found that both IAA and NPA increase the amplitude of the movement in P. sanguinolenta. We hypothesize that auxin might... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Passiflora; Androgynophore; IAA; NPA; Thigmotropism. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572015000300301 |
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| Caris, P.; Smets, E.; De Coster, K.; Ronse De Craene, L.. |
| The floral ontogeny of the Spurge olive (Cneorum tricoccon L.) is studied by means of scanning electron microscopic observations. Special attention is paid to the sequence of initiation of the floral parts, the occurrence of septal cavities, and the development of the nectariferous tissue. The nectary disc arises as a receptacular outgrowth below the ovary and independently from stamen development. By the extensive growth of this voluminous androgynophore, stamen filaments become enclosed by nectary tissue and as a result, they are seated in pits between the lobes of the disc. Between ovary and style, three lobes are present, which are covered with stomata – their function is unknown. The significance of the unusual trimery of the flower is discussed.... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Androgynophore; Cneoraceae; Cneorum tricoccon L.; Floral ontogeny; Nectary; Rutaceae; Spurge olive. |
| Ano: 2006 |
URL: http://www.repository.naturalis.nl/record/407345 |
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