Visitantes florais do maracujá-amarelo (Passiflora edulis f. flavicarpa Deg. Passifloraceae) em áreas de cultivo com diferentes proximidades a fragmentos florestais na região Norte Fluminense, RJ

Benevides, Cristine Rodrigues; Gaglianone, Maria Cristina; Hoffmann, Magali

doi:10.1590/s0085-56262009000300016

Cited by 32 publications

(22 citation statements)

References 12 publications

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“…These fragments provide varied sources of food to bees and nesting sites (Liow et al 2001, Chacoff & Aizen 2006, Klein et al 2007, Kremen et al 2007). According to Benevides et al (2009) and Garibaldi et al (2011), the small distance from the crops in relation to the natural areas positively influences the richness of floral visitors and fruit formation.…”

Section: Resultsmentioning

confidence: 99%

Importance of bees in pollination of Solanum lycopersicum L. (Solanaceae) in open-field of the Southeast of Minas Gerais State, Brazil

Vinícius-Silva

Parma

Tostes

et al. 2017

Hoehnea

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-(Importance of bees in pollination of Solanum lycopersicum L. (Solanaceae) in open-field of the Southeast of Minas Gerais State, Brazil). Pollinators are extremely important in agricultural crops because their deficit can affect food production in the world. Consequently, a lot of studies have been emphasizing the importance of the knowledge about the biology of these agents. The tomato stands out among the economically most important crops. Therefore, the objectives of this work were: to identify the pollinators of Solanum lycopersicum in a conventional area of cultivation in the southeast of Minas Gerais State and detect which of these are more representative; to assess the importance of the pollinators' action for the quality of the fruits produced; and discuss practices for conservation to these agents. Fifteen floral visitors were found, with Exomalopsis analis being the most representative. Apis mellifera and Trigona spinipes, although not vibrating bees, also acted as pollinators of Solanum lycopersicum. Keywords: buzz pollination, conventional cultivation, environmental services RESUMO -(Importância das abelhas na polinização de Solanum lycopersicum L. (Solanaceae) em cultivo aberto no Sudeste do Estado de Minas Gerais, Brasil). Polinizadores são extremamente importantes em cultivos agrícolas, pois o seu déficit pode afetar a produção de alimentos no mundo. Sendo assim, estudos têm enfatizado a importância do conhecimento sobre a biologia desses agentes. Dentre as espécies olerícolas mais importantes economicamente, destaca-se o tomate. Assim, este estudo objetivou identificar os potenciais polinizadores de Solanum lycopersicum em uma área de cultivo convencional no sudeste do Estado de Minas Gerais; identificar quais destes são mais representativos, verificar a importância da sua ação na qualidade dos frutos produzidos e discutir práticas para a conservação desses agentes. Foram encontrados 15 visitantes florais, sendo Exomalopsis analis o mais representativo. Apis mellifera e Trigona spinipes, mesmo não sendo abelhas vibradoras, também atuaram como polinizadores de Solanum lycopersicum.

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Section: Resultsmentioning

confidence: 99%

Importance of bees in pollination of Solanum lycopersicum L. (Solanaceae) in open-field of the Southeast of Minas Gerais State, Brazil

Vinícius-Silva

Parma

Tostes

et al. 2017

Hoehnea

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“…For coffee cultivation, in Costa Rica, mango crops, in South Africa and cultures of passion fruit, in Brazil, the distance of crops to the remaining forests was a determining factor in the rate of visitation of flowers, where crops closer to fragments received more visits [64,89,90]. So, it can be argued that the diversity and abundance of bees and consequently the efficiency of this group in pollination is affected by the isolation of crops.…”

Section: The Effects Of Landscape Fragmentation and Isolation On Pollmentioning

confidence: 99%

Aspects of Landscape and Pollinators—What is Important to Bee Conservation?

Patrício-Roberto

Campos

2014

Diversity

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Pollinators, especially bees, are essential to terrestrial ecosystems. They ensure the maintenance of certain ecological processes, like superior plants' reproduction. In the past decades, agricultural intensification has caused extensive environmental changes, with major impacts on biodiversity, especially on the pollinators, which reflects the loss of fruits and seeds sets. Here, we review studies that elucidate the causes of decline of pollinators, consequences of landscape changes to agriculture and possibilities to bees' conservation. Many studies have related the loss of pollinators to changes in the landscape, such as the conversion of native forests into cultivated areas, which causes loss of important elements for bees (e.g., sources of pollen, nectar and oil, as well as varied nesting sites). Studies involving landscape ecology allow us to assess the effects of different farming practices over the richness and abundance of pollinators. Among the landscape elements performing positive influence on bees, the presence of remaining forests nearby cultivated areas proved to be a very important factor. Nevertheless, studies that evaluate all ground cover with a more integrated approach are still required to assess the effects of landscape context on the diversity and on the abundance of bees related to productivity of crops. Researches like these could provide specific data that strengthen the need for the conservation of different plants and animals, and could offer subsidies to propose necessary information for the execution of public and private policies, aimed at the conservation of the biodiversity. OPEN ACCESS humans depends directly or indirectly on pollination by animals [8], and around 35% of the crop species are pollinated by this group [9]. By investigating only the European continent, the percentage of cultivated plant species dependent on pollination by animals is 84% [10], whereas in cultures located in tropical regions, this value can reach up to 70% of the crops [11].Economically, the performance of pollinators (including groups of insects, birds and mammals) in the reproduction of cultivated plants is estimated at over a trillion dollars [12]. In 2005, the production of food entirely dependent on insects for pollination was estimated at €625 billion, about 39% of world production. The value of pollination services provided by bees, in this case, was estimated at €153 billion [13]. In Brazil, there is still lack information about the action of pollinators in many crops, making it difficult to estimate a value for this service [14].Since the 90s, many species of pollinators disappeared from natural and agricultural areas [10,[15][16][17][18][19]. Buchmann and Nabham (1996) pointed to this scenario in an article titled "The Pollination Crisis" [20]: the authors observed a reduction of 70% to 90% of the pollination, which provoked a decrease in the fruits and seeds sets of many native and cultivated species. This reduction occurred after huge and abrupt changes in the landscape, associated with ...

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“…In this genus, the species presenting sexual reproduction may involve both selfcompatible (P. foetida) and self-incompatible systems (P. sublanceolata); in this case, pollen produced in a particular flower cannot effectively fertilize other flowers produced on the same plant (Junqueira et al 2005). Studies on the floral biology and pollination of various Passiflora species have reported the predominance of melittophily and the assistance of birds, but there are some species that are pollinated by bats (chiropterophily) (Benevides et al 2009). …”

Section: Introductionmentioning

confidence: 99%

Confirmation and characterization of interspecific hybrids of Passiflora L. (Passifloraceae) for ornamental use

et al. 2011

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Three new varieties of Passiflora hybrids were developed from crosses between P. sublanceolata J. M. MacDougal (ex P. palmeri var. sublanceolata Killip) versus P. foetida var. foetida L. Twenty putative hybrids were analyzed. Hybridizations were confirmed by RAPD and SSR markers. The RAPD primer UBC11 (5 0 -CCGGCCTTAC-3 0 ) generated informative bands. The SSR primer A08FP1 amplified species-specific fragments and heterozygote status was observed with the two parent bands 240 and 280 bp. The molecular markers generated by primers were analyzed in terms of the presence or absence of specific informative bands. The morphological characterization of the hybrids enabled their differentiation into three groups, identified as: (1) Passiflora 'Alva', composed of five hybrid plants with white flowers, large corona, light purple filaments at base, white and purple/white banding to apex; (2) P. 'Aninha', composed of six hybrid plants with pale pink flowers, corona filaments reddish/purple at base, white, purple/ white banding to apex; (3) P. 'Priscilla', composed of nine hybrid plants with white flowers, small corona, filaments dark purple at base, white and purple to apex. The genomic homology of parent plants was verified by cytogenetic analysis. Both parents were 2n = 22. Meiosis was regular in genitors and hybrids. Aneuploidy was observed at hybrid groups P. 'Alva' and P. 'Priscilla' (2n = 20). Other authors had already observed the same number of chromosomes for some P. foetida genotypes. Obtaining valuable interspecific hybrids opens up new perspectives to offer opportunities in agribusiness for producers and to arouse the interest of consumers into using passion flowers in the Brazilian ornamental plant market.

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Visitantes florais do maracujá-amarelo (Passiflora edulis f. flavicarpa Deg. Passifloraceae) em áreas de cultivo com diferentes proximidades a fragmentos florestais na região Norte Fluminense, RJ

Cited by 32 publications

References 12 publications

Importance of bees in pollination of Solanum lycopersicum L. (Solanaceae) in open-field of the Southeast of Minas Gerais State, Brazil

Importance of bees in pollination of Solanum lycopersicum L. (Solanaceae) in open-field of the Southeast of Minas Gerais State, Brazil

Aspects of Landscape and Pollinators—What is Important to Bee Conservation?

Confirmation and characterization of interspecific hybrids of Passiflora L. (Passifloraceae) for ornamental use

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