Atemoya fruit development and cytological aspects of GA3-induced growth and parthenocarpy

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dc.creatorRayane Carneiro dos Santos
dc.creatorSilvia Nietsche
dc.creatorMarlon Cristian Toledo Pereira
dc.creatorLeonardo Monteiro Ribeiro
dc.creatorMaria Olívia Mercadante Simões
dc.creatorBruna Hanielle Carneiro dos Santos
dc.date.accessioned2022-10-10T14:48:53Z
dc.date.accessioned2025-09-09T00:00:28Z
dc.date.available2022-10-10T14:48:53Z
dc.date.issued2019-05-08
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.description.sponsorshipOutra Agência
dc.identifier.doihttps://doi.org/10.1007/s00709-019-01382-2
dc.identifier.issn1615-6102
dc.identifier.urihttps://hdl.handle.net/1843/46133
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofProtoplasma
dc.rightsAcesso Restrito
dc.subjectFruta-de-conde
dc.subjectAnonácea
dc.subjectÁcido giberélico
dc.subjectCélulas vegetais
dc.subjectPolinização
dc.subjectCrescimento (Plantas)
dc.titleAtemoya fruit development and cytological aspects of GA3-induced growth and parthenocarpy
dc.typeArtigo de periódico
local.citation.epage1360
local.citation.spage1345
local.citation.volume257
local.description.resumoThe exogenous application of GA3 to atemoya tree flowers induces parthenocarpy, and in association with artificial pollination, it increases the fruit size. Morphological, anatomical, ultrastructural, and chemical aspects were evaluated during development of (1) fruit produced by artificial pollination (AP), (2) fruit from AP followed by the application of 250 ppm GA3, and (3) parthenocarpic fruit induced by the application of 1000 ppm GA3. Fruit growth showed a sigmoidal pattern, with development occurring in three phases: (I) cell division, (II) cell differentiation, and (III) maturation. Phase I presented cells with large nuclear volumes and a large population of organelles, phase II presented cells with a reduction in cytoplasm and an increase in vacuole volume, and phase III presented cells with an increase in plastids with reserve compounds. The application of GA3, in association with pollination, precedes cytological events and delays when applied exclusively. GA3 promotes the growth of pollinated fruits by stimulating cell division and expansion, which occur in association with reduced seed production, and the GA3 induces parthenocarpy by maintaining division and stimulating cell expansion. The absence of seeds accounts for the smaller size of the parthenocarpic fruits, and the lower accumulation of calcium accounts for less firm fruit.
local.publisher.countryBrasil
local.publisher.departmentICA - INSTITUTO DE CIÊNCIAS AGRÁRIAS
local.publisher.initialsUFMG
local.url.externahttps://link.springer.com/article/10.1007/s00709-019-01382-2

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