Comparison of the Toxicity Effects of Tris(1,3-dichloro-2-propyl)phosphate (TDCIPP) with Tributyl Phosphate (TNBP) Reveals the Mechanism of the Apoptosis Pathway in Asian Freshwater Clams (Corbicula fluminea)

2020 ◽  
Vol 54 (11) ◽  
pp. 6850-6858
Author(s):  
Saihong Yan ◽  
Qi Wang ◽  
Lihua Yang ◽  
Jinmiao Zha
Keyword(s):  
Tributyl Phosphate ◽  
Corbicula Fluminea ◽  
Apoptosis Pathway ◽  
Freshwater Clams ◽  
Toxicity Effects

scholarly journals The distribution and length size of corbicula fluminea (ETAK) in Sungai Pergau at Gunung Reng

2018 ◽  
Vol 7 (2.29) ◽  
pp. 279 ◽  
Author(s):  
Aweng Eh Rak ◽  
Nur Fasihah Binti Ab Khalid ◽  
Sharifah Aisyah Syed Omar
Keyword(s):  
Water Quality ◽  
Corbicula Fluminea ◽  
The State ◽  
Length Measurement ◽  
Habitat Characteristics ◽  
Freshwater Clam ◽  
Freshwater Clams

Corbicula fluminea (Bivalvia: Corbiculidae), locally known as “etak” which is the favorite freshwater clams in the Kelantan state. This study was conducted to study on Etak distribution in Sungai Pergau at Gunung Reng which is known as a recreational spot. As it is the favorite freshwater clam in the state, the data could be helpful in monitoring its presence and if in decline, remedial and replenishment could be introduced. The numbers, weight and the length measurement of C. fluminea were identified as C. fluminea parameters. In addition, water quality used (conductivity, pH, turbidity, salinity, temperature, DO and nitrate) and types of substrate were also studied to identify the habitat characteristics that affect the distribution of this species. As there was no documentation of distribution and density of C. fluminea in Sg. Kelantan, it would be difficult to compare the density and distribution of “etak” in the others river in Kelantan. In total 166 individuals of C. fluminea (77g) found at middle streams with 11-12.5mm in length. As the finding shows that, the distribution of C. fluminea at Gunung Reng was not affected by water quality. In this study shows that the most substrate ranged from 0.25mm and 0.71mm which represent sand (sand-coarse and sand-fine). It is believed that the smaller substrates help to trap more suspended materials as food for C. fluminea and the harvesting activities reduce the time for the clams to grow mature with a larger size in length.  

Toxicity effects of silver nanoparticles on the freshwater bivalve Corbicula fluminea

2018 ◽  
Vol 6 (4) ◽  
pp. 4236-4244 ◽  
Author(s):  
Weiwei Liu ◽  
Zhuotong Zeng ◽  
Anwei Chen ◽  
Guangming Zeng ◽  
Rong Xiao ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Corbicula Fluminea ◽  
Freshwater Bivalve ◽  
Toxicity Effects

Accumulation of human waterborne parasites by zebra mussels ( Dreissena polymorpha ) and Asian freshwater clams ( Corbicula fluminea )

2003 ◽  
Vol 89 (2) ◽  
pp. 107-112 ◽  
Author(s):  
Graczyk T. ◽  
Conn D. ◽  
Marcogliese D. ◽  
Graczyk H. ◽  
Y. de Lafontaine
Keyword(s):  
Dreissena Polymorpha ◽  
Corbicula Fluminea ◽  
Zebra Mussels ◽  
Freshwater Clams

scholarly journals Recovery of Waterborne Cryptosporidium parvum Oocysts by Freshwater Benthic Clams (Corbicula fluminea)

1998 ◽  
Vol 64 (2) ◽  
pp. 427-430 ◽  
Author(s):  
Thaddeus K. Graczyk ◽  
Ronald Fayer ◽  
Michael R. Cranfield ◽  
David Bruce Conn
Keyword(s):  
Cryptosporidium Parvum ◽  
Corbicula Fluminea ◽  
Gi Tract ◽  
Fecal Matter ◽  
Immunofluorescent Antibody ◽  
Freshwater Clams ◽  
Test Kit ◽  
Contamination Event ◽  
Cryptosporidium Parvum Oocysts

ABSTRACT Asian freshwater clams, Corbicula fluminea, exposed for 24 h to 38 liters of water contaminated with infectiousCryptosporidium parvum oocysts (1.00 × 106 oocysts/liter; approximately 1.9 × 105 oocysts/clam) were examined (hemolymph, gills, gastrointestinal [GI] tract, and feces) on days 1, 2, 3, 7, and 14 postexposure (PE). No oocysts were detected in the water 24 h after the contamination event. The percentage of oocyst-containing clams varied from 20 to 100%, depending on the type of tissue examined and the technique used—acid-fast stain (AFS) or immunofluorescent antibody (IFA). The oocysts were found in clam tissues and feces on days 1 through 14 PE; the oocysts extracted from the tissues on day 7 PE were infectious for neonatal BALB/c mice. Overall, the highest number of positive samples was obtained when gills and GI tracts were processed with IFA (prevalence, 97.5%). A comparison of the relative oocyst numbers indicated that overall, 58.3% of the oocysts were found in clam tissues and 41.7% were found in feces when IFA was used; when AFS was used, the values were 51.9 and 48.1%, respectively. Clam-released oocysts were always surrounded by feces; no free oocysts or oocysts disassociated from fecal matter were observed. The results indicate that these benthic freshwater clams are capable of recovery and sedimentation of waterborne C. parvum oocysts. To optimize the detection of C. parvum oocysts in C. fluminea tissue, it is recommended that gill and GI tract samples be screened with IFA (such as that in the commercially available MERIFLUOR test kit).

Apoptosis pathway of triterpenoids from Tiarella polyphylla on HL-60 cells

Planta Medica ◽  
2008 ◽  
Vol 74 (09) ◽  
Author(s):  
OK Kwon ◽  
KS Ahn ◽  
G Shen ◽  
SR Oh ◽  
HK Lee
Keyword(s):  
Apoptosis Pathway ◽  
Tiarella Polyphylla
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