Autor(es):
Campos, Bruna Helena de ; Dalbeto, Andra Carolina [UNESP] ; Francisco, Bruno dos Santos [UNESP] ; Romanelli, Joao Paulo ; Munis, Rafaele Almeida [UNESP] ; Engel, Vera Lex [UNESP] ; Durigan, Giselda [UNESP]
Data: 2020
Identificador Persistente: http://hdl.handle.net/11449/196717
Origem: Oasisbr
Assunto(s): Balanophoraceae; Croton floribundus; holoparasitism; host specificity; lianas; Balanophoraceae; Balanophoraceae; Croton floribundus; Croton floribundus; holoparasitism; holoparasitism; host specificity; host specificity; lianas; lianas
Descrição
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Though they comprise 1 % of plant species on the planet, plant parasites are poorly known. They have been considered a threat to cultivated plants and to the conservation of host species in natural areas. Due to the complex interactions they have with their hosts, understanding their biology is fundamental to the development of conservation strategies for both parasite species and their hosts. We sampled two populations of the root parasite Scybalium fungiforme (Balanophoraceae) in seasonal tropical forest fragments to identify its host species and their functional attributes. Among the hosts, Croton floribundus seems to be preferred (68 % of parasitized plants), while four liana species were complementary hosts (32 %). Host species preference differed sharply among fragments and seems to be related to the successional stage of these forests. The hosts C. floribundus and the four liana species are perennial, fast growing and have large vessels, all of which are attributes that enable high water and nutrient acquisition efficiency. Despite a lack of clear host specificity at the species level, functional convergence among parasitized species suggests that host specificity is mediated by functional traits.
Univ Estadual Campinas, Programa Posgrad Ecol, BR-13083865 Campinas, SP, Brazil
Univ Estadual Paulista, Fac Ciencias Agron, Lab Ecol & Restauracao Florestal, BR-18610034 Botucatu, SP, Brazil
Univ Estadual Paulista, Programa Posgrad Biociencias, BR-17033360 Bauru, SP, Brazil
Univ Fed Sao Carlos, Programa Posgrad Ciencias Ambientais, BR-13565905 Sao Carlos, SP, Brazil
Univ Estadual Paulista, Fac Ciencias Agron, Programa Posgrad Ciencia Florestal, BR-18610034 Botucatu, SP, Brazil
Inst Florestal, Lab Ecol & Hidrol Florestal, Floresta Estadual Assis, BR-19807300 Assis, SP, Brazil
Univ Estadual Paulista, Fac Ciencias Agron, Lab Ecol & Restauracao Florestal, BR-18610034 Botucatu, SP, Brazil
Univ Estadual Paulista, Programa Posgrad Biociencias, BR-17033360 Bauru, SP, Brazil
Univ Estadual Paulista, Fac Ciencias Agron, Programa Posgrad Ciencia Florestal, BR-18610034 Botucatu, SP, Brazil
CNPq: 140954/2019-8
CNPq: 303179/2016-3
CNPq: 311431/2015-1
