Importance des nectaires extra—floraux dans les interactions plantes-fourmis
| Autor: | Monique Belin-Depoux |
|---|---|
| Rok vydání: | 1993 |
| Předmět: | |
| Zdroj: | Acta Botanica Gallica. 140:183-205 |
| ISSN: | 2166-3408 1253-8078 |
| DOI: | 10.1080/12538078.1993.10515582 |
| Popis: | Summary Morphological, histological and functional features about extra- floral nectaries are studied. In ant—plant interactions, in protection against herbivores, they involve a more or less great efficacity. Six examples are considered to explain principal comportments. Sacoglottis gabonensis (Pl.I, fig. 1–4) shows extrafloral nectaries only in juvenile leaf. In Anthocleista nobilis (Pl. l, fig. 5–6; Pl. II, fig. 7–12), juvenile leaf extrafloral nectaries (Pl. I, fig. 5–6), adult leaf ones (Pl. II, fig. 7–12) are present. In Alchornea cordifolia (Pl. II, fig. 13–16), foliar extrafloral nectaries are functional during the whole leaf life as in Inga nectaries (Pl. IV, fig. 19–24). The Laguncularia racemosa nectaries (Pl. III, fig. 17–18) have an inner and interlocked structure. In the foliar nectary, the histological specialization goes through a threezoned superposed structure (Alchornea) and an increase of external zone cells. Then, by central invagination (Inga), we are coming to an interlocked and inn... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|