Abstract：
:Reduction of pollen flow can affect plant abundance and population viability and cause selection on plant mating system and floral traits. Little is known on the effect of this phenomenon in species naturally restricted to small and isolated habitats, that may have developed strategies to cope with long-term isolation and small population size. We investigated the pollination ecology of the endemic distylous winter-flowering P. allionii to verify the possible limitation of female fitness due to reduced pollinator visits. We recorded a higher production of pollen grains in long-styled morph, and a higher seed set in short-styled morph. The high intra-morph variability of sexual organ position may explain the hybridization phenomena allowing and easier intra-morph pollination. The fruit set is constant, although its winter-flowering period might decrease pollen transfer. Nevertheless, the lower competition for pollinators with neighbouring plants and the long-lasting anthesis may offset its reproductive success. Even if our results show no evidence of imminent threats, changes in plant-pollinator interactions might increase inbreeding, resulting in an increased extinction risk.
journal_name
J Plant Resjournal_title
Journal of plant researchauthors
Minuto L,Guerrina M,Roccotiello E,Roccatagliata N,Mariotti MG,Casazza Gdoi
10.1007/s10265-013-0588-9subject
Has Abstractpub_date
2014-01-01 00:00:00pages
141-50issue
1eissn
0918-9440issn
1618-0860journal_volume
127pub_type
杂志文章abstract：:Intra- and transcellular water movements in plants are regulated by the water permeability of the plasma membrane (PM) and vacuolar membrane (VM) in plant cells. In the present study, we investigated the osmotic water permeability of both PM (P ( f1)) and VM (P ( f2)), as well as the bulk osmotic water permeability of...
journal_title：Journal of plant research
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doi：10.1007/s10265-016-0903-3
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journal_title：Journal of plant research
pub_type： 杂志文章
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journal_title：Journal of plant research
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doi：10.1007/s10265-009-0251-7
更新日期：2009-11-01 00:00:00
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doi：10.1007/s10265-012-0501-y
更新日期：2013-01-01 00:00:00
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journal_title：Journal of plant research
pub_type： 杂志文章
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更新日期：2016-07-01 00:00:00
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doi：10.1007/s10265-012-0515-5
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pub_type： 杂志文章
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pub_type： 杂志文章
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pub_type： 杂志文章
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