Yaowaluk Chitramvong
Mahidol University
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Featured researches published by Yaowaluk Chitramvong.
Molluscan Research | 1998
Maleeya Kruatrachue; E. Suchart Upatham; Pinich Wangsomnuk; Prapee Sretarugsa; Yaowaluk Chitramvong
Abstract The adult snails, Indoplanorbis exustus were exposed to the synthetic molluscicide, niclosamide, and the crude – aqueous extract of Brassaia actinophylla at the LC50 concentrations (0.009 mg/ 1 and 23.73 mg/1, respectively) for 24 hours. The results showed relatively similar ultrastructural changes in the digestive system of snails exposed to niclosamide and B. actinophylla. The general cytological alterations that occurred in the epithelia of esophagus, intestine and digestive gland were the formation of blebs, increased fusion of vacuoles, infolding and thickening of basal lamina, formation of myelin-like figures, degranulation and dilation of rough endoplasmic reticulum, swelling of mitochondria and cristae, and an increase in mucus production. Most of these reactions were more severe in snails treated with B. actinophylla than those exposed to niclosamide.
Molluscan Research | 1998
E. S. Upatham; P. Wangsomnuk; Maleeya Kruatrachue; Yaowaluk Chitramvong; V. Reutrakul
Abstract A total of 50 different plant species of 22 families was investigated for molluscicidal activity against Indoplanorbis exustus. Twenty-one species (42%) demonstrated molluscicidal activity. The crude water extract of Brassaia actinophylla showed the best result with 24 hr. LC50 and LC90 values of 23.73 and 32.11 mg / l, respectively. The control group of snails exposed to niclosamide showed 24 hr. LC50 and LC90 values of 0.009 and 0.01 mg / l, respectively. The 24 hr. LC50 and LC90 values of the crude water extract of B. actinophylla on two species of fish, namely, Puntius gonionotus and Poecilia reticulata were 47 and 55 mg/1, and 85 and 111 mg/1, respectively. Concerning the crustacea, Moina macrocopa and Macrobrachium rosenbergii, the 24 hr. LC50 and LC90 values of the crude water extract of B. actinophylla were 258 and 861 mg/1, and 141 and 181 mg/1, respectively.
Aquatic Toxicology | 2007
Sutin Kingtong; Yaowaluk Chitramvong; Tavan Janvilisri
Journal of Shellfish Research | 2001
S. Sawatpeera; E. S. Upatham; Maleeya Kruatrachue; Yaowaluk Chitramvong; Pichai Sonchaeng; T. Pumthong; J. Nugranad; P. A. Cook
Archive | 2008
Fred E. Wells; Western Australian; Yaowaluk Chitramvong
Bulletin of Environmental Contamination and Toxicology | 2002
Maleeya Kruatrachue; W. Jarupan; Yaowaluk Chitramvong; Prayad Pokethitiyook; E. S. Upatham; K. Parkpoomkamol
Journal of Molluscan Studies | 2006
Kitithorn Sanpanich; Fred E. Wells; Yaowaluk Chitramvong
Records of the western Australian Museum | 2004
Kitithorn Sanpanich; Fred E. Wells; Yaowaluk Chitramvong
Journal of Shellfish Research | 1998
E. S. Upatham; S. Sawatpeera; Maleeya Kruatrachue; Yaowaluk Chitramvong; T. Singhagraiwan; T. Pumthong; P. Jarayabhand; P. A. Cook; G. E. Davis; P. L. Haaker; D. L. Leighton
Archive | 2008
Kitithorn Sanpanich; Fred E. Wells; Yaowaluk Chitramvong