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- La sérotinie ou sérotinisme est le comportement de certaines espèces de plantes qui conservent leurs graines dans un cône ou une coque en bois éventuellement pendant plusieurs années, longtemps après la maturation des graines; et les relâchent après une exposition au feu. Selon Lamont (1991), le terme « sérotineux » signifie qu'une partie ou la totalité de la culture de semences est conservée sur la plante mère longtemps après la maturité des graines, alors que « non-sérotineux » signifie que les graines sont dispersées à maturité. En outre, il a suggéré que le terme « désiscence retardée » (et non déhiscence) soit utilisé pour décrire les espèces sérotineuses dans lesquelles les graines sont dispersées en l'absence d'indices environnementaux spécifiques. Lamont a également proposé des termes pour décrire l'ouverture des structures de maintien des graines en réponse à des facteurs environnementaux spécifique: nécriscence, hygriescence, soliscence, pyriscence, pyrohygriscence. « Pyriscence » décrit la libération des graines à la suite du chauffage de la structure de maintien des graines par le feu. (fr)
- Serotiny in botany simply means 'following' or 'later'. In the case of serotinous flowers, it means flowers which grow following the growth of leaves, or even more simply, flowering later in the season than is customary with allied species. Having serotinous leaves is also possible, these follow the flowering. Serotiny is contrasted with coetany. Coetaneous flowers or leaves appear together with each other. In the case of serotinous fruit, the term is used in the more general sense of plants that release their seed over a long period of time, irrespective of whether release is spontaneous; in this sense the term is synonymous with bradyspory. In the case of certain Australian, South African or Californian plants which grow in areas subjected to regular wildfires, serotinous fruit can also mean an ecological adaptation exhibited by some seed plants, in which seed release occurs in response to an environmental trigger, rather than spontaneously at seed maturation. The most common and best studied trigger is fire, and the term serotiny is used to refer to this specific case. Possible triggers include:
* Death of the parent plant or branch (necriscence)
* Wetting (hygriscence)
* Warming by the sun (soliscence)
* Drying atmospheric conditions (xyriscence)
* Fire (pyriscence) — this is the most common and best studied case, and the term serotiny is often used where pyriscence is intended.
* Fire followed by wetting (pyrohydriscence) Some plants may respond to more than one of these triggers. For example, Pinus halepensis exhibits primarily fire-mediated serotiny, but responds weakly to drying atmospheric conditions. Similarly, Sierras sequoias and some Banksia species are strongly serotinous with respect to fire, but also release some seed in response to plant or branch death. Serotiny can occur in various degrees. Plants that retain all of their seed indefinitely in the absence of a trigger event are strongly serotinous. Plants that eventually release some of their seed spontaneously in the absence of a trigger are weakly serotinous. Finally, some plants release all of their seed spontaneously after a period of seed storage, but the occurrence of a trigger event curtails the seed storage period, causing all seed to be released immediately; such plants are essentially non-serotinous, but may be termed facultatively serotinous. (en)
- La serotinia è un particolare adattamento ecologico sviluppato da alcuni generi di piante spermatofite che permette il rilascio dei semi solo in seguito al verificarsi di particolari condizioni ambientali piuttosto che al raggiungimento della maturazione da parte del seme stesso. Il tipo di serotinia più comune e studiato è quello mediato dal fuoco e il termine stesso è spesso utilizzato per indicare questo caso specifico. Il termine è utilizzato in generale per indicare il rilascio dei semi, da parte delle piante, per un lungo periodo di tempo (a prescindere dal fatto che questo rilascio sia spontaneo o no); in tal caso il termine sinonimo è . (it)
- Serotinie is een ecologische aanpassing van sommige zaadplanten, waarbij de zaden vrijkomen in reactie op een stimulus uit de omgeving, in plaats van de spontane verspreiding bij . De meest bekende en bestudeerde stimulus is het vuur van natuurbranden, en met de term wordt dan ook vaak verwezen naar dit verband. De term wordt ook meer algemeen gebruikt voor planten die hun zaad verspreiden over een langere periode, al dan niet spontaan. In dat geval is de term een synoniem van . (nl)
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| rdfs:comment
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- La serotinia è un particolare adattamento ecologico sviluppato da alcuni generi di piante spermatofite che permette il rilascio dei semi solo in seguito al verificarsi di particolari condizioni ambientali piuttosto che al raggiungimento della maturazione da parte del seme stesso. Il tipo di serotinia più comune e studiato è quello mediato dal fuoco e il termine stesso è spesso utilizzato per indicare questo caso specifico. Il termine è utilizzato in generale per indicare il rilascio dei semi, da parte delle piante, per un lungo periodo di tempo (a prescindere dal fatto che questo rilascio sia spontaneo o no); in tal caso il termine sinonimo è . (it)
- Serotinie is een ecologische aanpassing van sommige zaadplanten, waarbij de zaden vrijkomen in reactie op een stimulus uit de omgeving, in plaats van de spontane verspreiding bij . De meest bekende en bestudeerde stimulus is het vuur van natuurbranden, en met de term wordt dan ook vaak verwezen naar dit verband. De term wordt ook meer algemeen gebruikt voor planten die hun zaad verspreiden over een langere periode, al dan niet spontaan. In dat geval is de term een synoniem van . (nl)
- La sérotinie ou sérotinisme est le comportement de certaines espèces de plantes qui conservent leurs graines dans un cône ou une coque en bois éventuellement pendant plusieurs années, longtemps après la maturation des graines; et les relâchent après une exposition au feu. (fr)
- Serotiny in botany simply means 'following' or 'later'. In the case of serotinous flowers, it means flowers which grow following the growth of leaves, or even more simply, flowering later in the season than is customary with allied species. Having serotinous leaves is also possible, these follow the flowering. Serotiny is contrasted with coetany. Coetaneous flowers or leaves appear together with each other. Possible triggers include: (en)
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