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SEED GERMINATION AND PLANT DEVELOPMENT IN Escobedia grandiflora (OROBANCHACEAE): EVIDENCE OF OBLIGATE HEMIPARASITISM? Acta biol.Colomb.
CARDONA-MEDINA,Edison; MURIEL RUIZ,Sandra B.
Root parasitic plants can be facultative or obligate. Facultative parasites are able to complete their life cycle and their seeds can germinate without a host. Escobedia grandiflora is a poorly studied species in spite of its ancestral importance as dye of foods and medicinal use. The present study evaluates the states of seed, seedlings and mature plants, under presence and absence of possible hosts, for inferring the type of parasitism exhibited by E. grandiflora. Seeds were evaluated using two conditions each of light (12 and 0 hours) and temperature (20 °C and 25 °C); percentage germination, and germination speed were determined. The seeds did not require a host to germinate, as is typical of facultative parasitic plants. Percentage of germination...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Escobedia; Obligate hemiparasite; Parasitic plant; Root parasitism; Seed germination.
Ano: 2015 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2015000300011
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FIRST HOST RECORD FOR THE ROOT PARASITE Corynaea crassa (BALANOPHORACEAE) Acta biol.Colomb.
TUPAC OTERO,J; MORA,MARCELA; COSTA,JUAN F.
Corynaea crassa is a root hemiparasitc plant infrequent in nature. There is little information regarding their natural history, in particular their host range. In this study we dig 32 tubers and followed their parasitized roots to determine the species host. We found Bocconia frutescens (Papaveraceae), Verbesina sp. (Asteraceae), Cayaponia sp. (Cucurbitaceae) y Palicourea sp.(Rubiaceae) as natural hosts of C. crassa. This is the first host record available for C. crassa and provides some bases for its conservation in natural habitats.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Balanophoraceae; Corynaea crassa; Costa Rica; Host plant; Root parasitism.
Ano: 2009 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2009000300015
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