Neither protogynous nor obligatory out‐crossed: pollination biology and breeding system of the European Red List<i>Fritillaria meleagris</i>L. (Liliaceae)

Zych, Marcin; Stpiczyńska, Małgorzata

doi:10.1111/j.1438-8677.2011.00510.x

Cited by 29 publications

(56 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Our studies on the pollination biology of F. meleagris showed that the flowers are homogamous and that stigma receptivity and anthers dehiscence occur simultaneously (Zych and Stpiczyńska 2012). Therefore, protogyny in this species, as previously reported by Knuth (1899), was not confirmed.…”

Section: Nectar Secretion and Resorptioncontrasting

confidence: 46%

“…Since 1946, the species has been legally protected in Poland and is currently included in the ''critically endangered'' category of the Polish red list. It is also red-listed or bears the status of ''rare plant'' in other European countries within its natural range, and is regarded as ''vulnerable'' for the whole of Central Europe (Zych and Stpiczyńska 2012, and references therein).…”

Section: Study Sitementioning

confidence: 99%

“…Because the flowers were said to be protogynous (Knuth 1899; Rix 1968), we also checked for differences in nectar availability to pollinators between presumed sexual stages of the flower. Our study plant is self-compatible, but seeds in natural conditions are mostly outcrossed (Zych and Stpiczyńska 2012); therefore, interactions with animal pollinators, including nectar production and presentation, are a crucial step in the plant's reproduction. Flower visitors include bumblebees, honeybees, solitary bees and flies (Knuth 1899;Hedström 1983;Zych and Stpiczyńska 2012).…”

Section: Introductionmentioning

confidence: 99%

“…Our study plant is self-compatible, but seeds in natural conditions are mostly outcrossed (Zych and Stpiczyńska 2012); therefore, interactions with animal pollinators, including nectar production and presentation, are a crucial step in the plant's reproduction. Flower visitors include bumblebees, honeybees, solitary bees and flies (Knuth 1899;Hedström 1983;Zych and Stpiczyńska 2012). Although the largest pollen loads are transferred by solitary bees, the main pollinators are bumblebees (mostly Bombus terrestris and B. lapidarius) due to their seasonal and floral constancy, and tolerance of bad weather conditions (Zych and Stpiczyńska 2012).…”

Section: Introductionmentioning

confidence: 99%

“…Flower visitors include bumblebees, honeybees, solitary bees and flies (Knuth 1899;Hedström 1983;Zych and Stpiczyńska 2012). Although the largest pollen loads are transferred by solitary bees, the main pollinators are bumblebees (mostly Bombus terrestris and B. lapidarius) due to their seasonal and floral constancy, and tolerance of bad weather conditions (Zych and Stpiczyńska 2012). As shown by these authors, the flowers of this early-spring flowering species have very a low visitation rate despite being large and showy; we were, therefore, also interested in whether the plant reabsorbs secreted nectar that is not utilized by insect visitors.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Secretion and composition of nectar and the structure of perigonal nectaries in Fritillaria meleagris L. (Liliaceae)

2012

Self Cite

View full text Add to dashboard Cite

The structure of perigonal nectaries, nectar production and carbohydrate composition were compared at various stages in the lifespan of the flower of Fritillaria meleagris L. The six nectaries each occupied a groove that is located 2-4 mm above the tepal base. The average nectary measured 11.0 mm long and 1.0-1.2 mm wide. The structure of nectaries situated on both inner and outer tepal whorls was identical, and at anthesis they were equally accessible to potential pollinators. However, secretion from nectaries associated with inner tepals tended to exceed that produced by nectaries located on the outer tepals. On average, regardless of flower stage, one flower secreted 10.87 ± 12.98 mg of nectar (mean and SD; N = 182). The nectar concentration ranged between 3 and 75%, with average concentration of sugars exceeding 50%. Both nectar production and concentration were dependent on the stage of anthesis, with the highest scores being recorded during full anthesis (21.75 ± 16.08 mg; 70.5%, mass and concentration, respectively) and the lowest at the end of anthesis (1.32 ± 2.69 mg; 16.9%, mass and concentration, respectively). A decline in both mass of nectar secreted and nectar concentration during the final stage of anthesis indicates nectar resorption. Nectar was composed of sucrose, glucose and fructose in approx. equal quantities, and its composition did not change significantly during subsequent stages of flowering. The nectaries comprised a single-layered secretory epidermis and several layers of subepidermal parenchyma. The nectariferous cells did not accumulate starch during any of the investigated stages. The nectary was supplied with one large and several smaller vascular bundles comprising xylem and phloem. Transport of assimilates and nectar secretion by protoplasts of secretory cells (and probably also nectar resorption) were facilitated by cell wall ingrowths present on the tangential walls of epidermal cells and subepidermal parenchyma. Epidermal cells lacked stomata. Nectar passed across the cell wall and through the cuticle which was clearly perforated with pores.

show abstract

Section: Nectar Secretion and Resorptioncontrasting

confidence: 46%

Section: Study Sitementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Secretion and composition of nectar and the structure of perigonal nectaries in Fritillaria meleagris L. (Liliaceae)

2012

Self Cite

View full text Add to dashboard Cite

show abstract

Myophily in the critically endangered umbelliferous plant Ostericum palustre Besser (Apiaceae)

2013

View full text Add to dashboard Cite

Globally, many plant species face humaninduced habitat loss and an associated reduction in population size and vitality. Their survival is often possible only when appropriate conservation measures are taken that address the biology and ecology of these species, including their reproduction, often the most vulnerable stage in the life history of the organism. Unfortunately, little is known about these aspects of the biology of many listed plant species. For 3 years, we studied the pollination biology of the critically endangered plant species Ostericum palustre Besser (Apiaceae), one that is listed in the Bern Convention and Annex II of the EU Flora-Fauna Directive. Flowers of this taxon were visited by over 81 species of anthophilous insects derived from 5 taxonomic orders, indicating the presence of a generalised pollination system. However, detailed analyses of the frequency of insect visits, pollen loads and insect behaviour on inflorescences suggest that the plant is chiefly pollinated by large Dipterans, predominantly large Syrphid flies and Muscoid flies, that together are often responsible for over 90 % of total pollinations. Occasionally, wasps (Vespidae) may also be involved in the pollination of this species. With respect to the pollination system of O. palustre, our results indicate that this is a classic example of myophily, and generally, this species can be regarded as a functional specialist, but like many other members of Apiaceae, it is a typical ''bethedger''. This strategy may probably increase the plant's reproductive success in a range of habitat conditions, suggesting that the pollination system is unlikely to be the cause of rarity in this species.

show abstract

Effects of habitat disturbance on the pollination system of Ammopiptanthus mongolicus (Maxim) Cheng f. at the landscape-level in an arid region of Northwest China

et al. 2016

View full text Add to dashboard Cite

Ammopiptanthus mongolicus is an ecologically important species in the arid region of Northwest China. Habitat disturbance can significantly affect plant mating success and ultimately species viability. Pollen limitation of plant reproduction occurs in many plant species, particularly those under habitat disturbance. However, previous investigations have demonstrated differences in pollen limitation between conserved and disturbed sites. We compared the phenology, pollen limitation, pollinators and breeding system of both sites to determine whether habitat disturbance has generated changes in these plant components. We found that the species differed in four aspects. First, blooming duration and flowering peak were longer in the disturbed site than in the conserved site. Second, A. mongolicus can be pollen-limited and pollen limitation was more intense in the conserved site than in the disturbed site. Third, Anthophora uljanini was found to be a frequent pollinator in the conserved site, while Apis mellifera was the most effective and frequent flower visitor. More pollinator visits were recorded in the disturbed site, which could explain the differences in reproductive success. Finally, seed set was higher in the disturbed site than in the conserved site. We found that outcrossing was dominant in both sites and that agamospermy and self-pollination played complementary roles to ensure reproduction. Differences in flower production influenced by artificial selection and pollinator type explain the different seed set in both sites, whereas habitat disturbance cause changes differences in the pollination process and limits pollen flow. The balance between artificial management and mating success is crucial to analysis of the pollination process and manipulation of A. mongolicus population size.

show abstract

Neither protogynous nor obligatory out‐crossed: pollination biology and breeding system of the European Red ListFritillaria meleagrisL. (Liliaceae)

Cited by 29 publications

References 28 publications

Secretion and composition of nectar and the structure of perigonal nectaries in Fritillaria meleagris L. (Liliaceae)

Secretion and composition of nectar and the structure of perigonal nectaries in Fritillaria meleagris L. (Liliaceae)

Myophily in the critically endangered umbelliferous plant Ostericum palustre Besser (Apiaceae)

Effects of habitat disturbance on the pollination system of Ammopiptanthus mongolicus (Maxim) Cheng f. at the landscape-level in an arid region of Northwest China

Contact Info

Product

Resources

About