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'Plantago' 




Male sterility, protogyny, and pollen-pistil interference in Plantago maritima (Plantaginaceae), a wind-pollinated, self-incompatible perennial / Patrik Dinnétz in American Journal of Botany, 84 (11) (1997)
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Titre : Male sterility, protogyny, and pollen-pistil interference in Plantago maritima (Plantaginaceae), a wind-pollinated, self-incompatible perennial Type de document : Imprimé Auteurs : Patrik Dinnétz Année de publication : 1997 Article en page(s) : 1588-1594 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Biologie de la reproduction Mots-clés : Plantago Plantago maritima L. Résumé : Evolution and maintenance of male sterility in seed plants can be explained by the maternal inheritance of mitochondria, which encode the trait, and by adaptive functions that enhance female fecundity in male-sterile compared to hermaphrodite individuals. Protogyny and male sterility can independently decrease the negative effect of pollen–pistil interference in self-incompatible species. In Plantago maritima, which possesses both traits, protogyny increases seed set in hermaphrodite individuals. This is shown both by a significantly positive association between seed set and retarded dehiscence of the anthers and by a more than 50% reduction in seed set following self-pollination. Male sterility does not seem to increase seed set further, as female and hermaphrodite plants do not differ significantly in mean seed set per capsule. Bagging experiments demonstrate strong self-incompatibility in the study populations. Hence, in P. maritima male sterility seems neither to prevent selfing nor to reduce the effect of pollen–pistil interference. Females had significantly larger stigmas than hermaphrodites, but seed set varied negatively with stigma length among females, indicating that the evolution of unisexuality in P. maritima is not due to prefertilization sex allocation. I therefore conclude that the genetical system of nucleocytoplasmic determination of gender is the main cause for maintenance of male sterility in P. maritima. Lien pérenne : DOI : 10.2307/2446621 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=137653
in American Journal of Botany > 84 (11) (1997) . - 1588-1594Dinnétz, Patrik 1997 Male sterility, protogyny, and pollen-pistil interference in Plantago maritima (Plantaginaceae), a wind-pollinated, self-incompatible perennial. American Journal of Botany, 84(11): 1588-1594.Documents numériques
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article (1997)URLReproductive allocation and resource compensation in male-sterile and hermaphroditic plants of Plantago lanceolata (Plantaginaceae) / Pieter Poot in American Journal of Botany, 84 (9) (1997)
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Titre : Reproductive allocation and resource compensation in male-sterile and hermaphroditic plants of Plantago lanceolata (Plantaginaceae) Type de document : Imprimé Auteurs : Pieter Poot Année de publication : 1997 Article en page(s) : 1256-1265 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Génétique et écologie (dynamique, démographique, sélection) Mots-clés : Plantago Plantago lanceolata L. Résumé : Gynodioecy is a breeding system in which hermaphrodites coexist with male steriles. Theoretical models predict that without any compensation in female fitness male steriles will disappear from a population due to their reproductive disadvantage. In the present study I investigated whether male-sterile (MS), partially male-sterile (IN), and hermaphroditic (H) plants of Plantago lanceolata differed in reproductive growth and allocation. Offspring of three interpopulation crosses segregating all three sex morphs were grown under nitrogen-limited conditions in a growth chamber. Independent of the genetic background MS plants attained a higher vegetative and reproductive dry mass and a higher reproductive output than H plants, whereas IN plants had intermediate values. When corrected for the mass of the pollen, the dry mass differences between the sex morphs were much reduced but still present. However, when whole-plant allocation was expressed on the basis of nitrogen, the differences between the sex morphs disappeared. Thus the sex morphs took up similar amounts of nitrogen but distributed them differently. The MS and IN plants used the nitrogen saved by not producing pollen for additional vegetative as well as reproductive growth. The data presented in this study suggest that resource compensation is one of the main mechanisms responsible for the maintenance of MS and IN plants in gynodioecious P. lanceolata. Lien pérenne : DOI : 10.2307/2446050 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=137648
in American Journal of Botany > 84 (9) (1997) . - 1256-1265Poot, Pieter 1997 Reproductive allocation and resource compensation in male-sterile and hermaphroditic plants of Plantago lanceolata (Plantaginaceae). American Journal of Botany, 84(9): 1256-1265.Documents numériques
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Article (1997)URLEtude biosystématique de quelques espèces du genre Plantago (Tourn.) L. : IV. La section Oreades Decne. / Delphine Cartier (1973)
Titre : Etude biosystématique de quelques espèces du genre Plantago (Tourn.) L. : IV. La section Oreades Decne. Type de document : Tiré à part de revue Auteurs : Delphine Cartier Année de publication : 1973 Importance : 129-149 Langues : Français (fre) Catégories : [CBNPMP-Thématique] Systématique, taxonomie Mots-clés : Plantago Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=134245 Cartier, Delphine 1973 Etude biosystématique de quelques espèces du genre Plantago (Tourn.) L. : IV. La section Oreades Decne. Revue générale de botanique, 80(947à949) : 129-149.Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 22152 C. Tiré à part Centre de documentation Tirés à part Consultable Eloge du Plantain / Bernard Bertrand (2000)
Titre : Eloge du Plantain Type de document : Imprimé Auteurs : Bernard Bertrand (1955-) Editeur : Sengouanet : Éditions de Terran Année de publication : 2000 Collection : Le compagnon végétal, ISSN 1272-4025 num. 10 Importance : 119 p. Langues : Français (fre) Catégories : [CBNPMP-Thématique] Ethnobotanique
[CBNPMP-Thématique] Monographie d'espèces
[CBNPMP-Thématique] Plantes en cuisine
[CBNPMP-Thématique] Plantes en médecine et pharmacie
[CBNPMP-Thématique] Plantes médicinalesMots-clés : Plantago Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=78232 Bertrand, Bernard (1955-) , 2000. Eloge du Plantain. Éditions de Terran, Sengouanet. 119 pp.Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 13322 1100 Livre Centre de documentation Bibliothèque Consultable