Reproductive activity alterations on the Biomphalaria glabrata exposed to Euphorbia splendens var. hislopii latex.
The reproductive activity of Biomphalaria glabrata exposed to Euphorbia splendens var. hislopii latex was evaluated. Parameters related to fecundity and fertility were observed. The snails were exposed to the LD50 (1 mg/l) of crude latex. At the first week post exposure (p.e.), the egg laying was reduced. After the fourth week p.e., an increase of the number of eggs/snail occurred. The results showed a marked reduction in the hatching of the snails, revealing an interference of latex exposure with the reproductive process of B. glabrata of E. splendens var. hislopii. The LD50 of the latex may be used as an alternative method to control the size of the populations of B. glabrata in field.
Mello-Silva
Clélia Christina
CC
Laboratório de Esquistossomose Experimental, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, RJ, 21045-900, Brasil. clelia@ioc.fiocruz.br
Vilar
Mônica Magno
MM
Bezerra
José Clecildo Barreto
JC
Vasconcellos
Maurício Carvalho de
MC
Pinheiro
Jairo
J
Rodrigues
Maria de Lurdes de A
Mde L
D000818:Animals; D001700:Biomphalaria / Q000187:drug effects* / Q000502:physiology; D028481:Euphorbia / Q000737:chemistry*; D005260:Female; D007840:Latex / Q000302:isolation & purification / Q000494:pharmacology*; D007928:Lethal Dose 50; D008297:Male; D010936:Plant Extracts / Q000494:pharmacology; D012098:Reproduction / Q000187:drug effects / Q000502:physiology
D007840:Latex; D010936:Plant Extracts