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Cell division interference in newly fertilized ovules induces stenospermocarpy in cross-pollinated citrus fruit

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Cell division interference in newly fertilized ovules induces stenospermocarpy in cross-pollinated citrus fruit

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dc.contributor.author Mesejo Conejos, Carlos es_ES
dc.contributor.author Muñoz Fambuena, Natalia es_ES
dc.contributor.author Reig Valor, Carmina es_ES
dc.contributor.author Martínez Fuentes, Amparo es_ES
dc.contributor.author Agustí Fonfría, Manuel es_ES
dc.date.accessioned 2016-04-14T11:44:05Z
dc.date.available 2016-04-14T11:44:05Z
dc.date.issued 2014-08
dc.identifier.issn 0168-9452
dc.identifier.uri http://hdl.handle.net/10251/62557
dc.description.abstract Seedlessness is a highly desirable characteristic in fresh fruits. However, post-fertilization seed abortion of cross-pollinated citrus fruit is uncommon. The factors regulating stenospermocarpy in citrus are unknown. In this research, we induced stenospermocarpy interfering in newly fertilized ovule cell division. The research also elucidates the most sensitive stage for ovule/seed abortion in citrus. Experiments were conducted with 'Afourer' mandarin that cross-pollinates with several cultivars and species. Cross-pollinated fruitlets were treated with maleic hydrazide (MH), a systemic growth regulator that specifically interferes in cell division. MH reduced ovule growth rate, the number of cell layers in nucella and inhibited embryo sac expansion; moreover, the treatment increased callose accumulation in nucella and surrounding the embryo sac. Fruits developed an early-aborted seed type with an immature, soft and edible seed coat. Seed number (-80%) and seed weight (-46%) were reduced in mature fruits. MH also hampered cell division in ovary walls, mesocarp and endocarp, thus reducing daily fruitlet growth and increasing fruit abscission. Stenospermocarpy could only be induced for a short period of time in the progamic phase of fertilization, specifically, when ovules are ready to be fertilized (7 days after anthesis) to early stages of embryo sac deyelopment (14 days after anthesis). (C) 2014 Elsevier Ireland Ltd. All rights reserved. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Plant Science es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Cross-pollination es_ES
dc.subject Maleic hydrazide es_ES
dc.subject Seedless fruit es_ES
dc.subject Seed abortion es_ES
dc.subject Stenospermocarpy es_ES
dc.subject.classification PRODUCCION VEGETAL es_ES
dc.title Cell division interference in newly fertilized ovules induces stenospermocarpy in cross-pollinated citrus fruit es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.plantsci.2014.05.019
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Producción Vegetal - Departament de Producció Vegetal es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Agroforestal Mediterráneo - Institut Agroforestal Mediterrani es_ES
dc.description.bibliographicCitation Mesejo Conejos, C.; Muñoz Fambuena, N.; Reig Valor, C.; Martinez Fuentes, A.; Agustí Fonfría, M. (2014). Cell division interference in newly fertilized ovules induces stenospermocarpy in cross-pollinated citrus fruit. Plant Science. 225:86-94. doi:10.1016/j.plantsci.2014.05.019 es_ES
dc.description.accrualMethod Senia es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.plantsci.2014.05.019 es_ES
dc.description.upvformatpinicio 86 es_ES
dc.description.upvformatpfin 94 es_ES
dc.type.version info:eu repo/semantics/publishedVersion es_ES
dc.description.volume 225 es_ES
dc.relation.senia 282080 es_ES


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