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Reproductive activity alterations on the Biomphalaria glabrata exposed to Euphorbia splendens var. hislopii latex

2007; Instituto Oswaldo Cruz, Ministério da Saúde; Volume: 102; Issue: 6 Linguagem: Inglês

10.1590/s0074-02762007005000101

1678-8060

Clélia Christina Mello-Silva, Mônica Magno Vilar, José Clecildo Barreto Bezerra, Maurício Carvalho de Vasconcellos, Pinheiro Jairo, Maria de Lurdes de Azevedo Rodrigues,

Parasite Biology and Host Interactions

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.