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

• Published in: Memórias do Instituto Oswaldo Cruz Vol. 102; no. 6; pp. 671 - 674
• Main Authors: Mello-Silva, Clélia Christina, Vilar, Mônica Magno, Bezerra, José Clecildo Barreto, de Vasconcellos, Maurício Carvalho, Pinheiro, Jairo, de A Rodrigues, Maria de Lurdes
• Format: Journal Article
• Language: English
• Published: Brazil Fundação Oswaldo Cruz, Fiocruz 01-09-2007; Fundação Oswaldo Cruz (FIOCRUZ)
• Subjects: Animals; Biomphalaria - drug effects; Biomphalaria - physiology; Biomphalaria glabrata; Biomphalaria glabrata - plant moluscicide - reproductive activity alteration - snail population control; Euphorbia - chemistry; Euphorbia splendens; Female; Freshwater; Latex - isolation & purification; Latex - pharmacology; Lethal Dose 50; Male; Plant Extracts - pharmacology; plant moluscicide; Reproduction - drug effects; Reproduction - physiology; reproductive activity alteration; snail population control
• ISSN: 1678-8060; 0074-0276; 1678-8060
• DOI: 10.1590/S0074-02762007000600002

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.