Reproductive disrupting effect of organotin compound in the ark shell,scapharca broughtonii(Bivalvia: Arcidae)

Lee, Jung Sick; Cho, Hyeon Seo; Jin, Young Guk; Park, Jung Jun; Shin, Yun Kyung

doi:10.1080/19768354.2009.9647214

Cited by 13 publications

(8 citation statements)

References 15 publications

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“…In general, exocrine glands are classified into unicellular and multicellular glands according to the number of composition cells, and can be divided further into holocrine glands and merocrine glands depending on their patterns of secretion [19]. Based on these standards, all secretory cells reported in S. reidi [14], M. mercenaria (Eble, 2001) and Scapharca broughtonii [4] were unicellular glands.…”

Section: Discussionmentioning

confidence: 99%

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Micromorphology and Ultrastructure of the Foot of the Equilateral Venus Gomphina veneriformis (Bivalvia: Veneridae)

Park¹,

Lee²,

Lee³

et al. 2012

CellBio

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The shape and microscopic structure of the foot of the equilateral Venus, Gomphina veneriformis are described by light and electron microscopy along with the substrate conditions of their habitat. The habitat sediment of G. veneriformis is composed of sand (2-0.063 mm in diameter), mainly. The foot is wedge-shaped with multiple vertical furrows on the surface. Although the foot is composed of an epithelial layer, a connective tissue layer and a muscular layer, the boundary between the connective tissue and muscular layer is not clear. The epithelial layer was composed mostly of ciliated columnar epithelia and secretory cells. Epithelial cells forming the apical region of the fold were long columnar, while cells of the interfold were mostly short columnar. The cilia and microvilli were commonly observed on the free surface of epithelial cells, while tight junctions of apico-lateral aspect and membrane interdigitations were found between the epithelial cells. Secretory cells were found to contain acidic mucopolysaccharide, and were classified into two types in accordance with the shapes and ultrastructures of secretory granules. The muscle fibers were composed of thin and thick microfilaments, the proportions of which were 81.3% and 18.7%, respectively. It was determined that such morphology and structural characteristics of the foot of G. veneriformis would present advantageous conditions for borrowing into substrate and mobility.

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Section: Discussionmentioning

confidence: 99%

“…It is also laterally flattened, highly muscular and extends nearly the entire ventral surface of the visceral mass [2]. The epithelial cells of bivalve foot expediently respond to various environmental stimuli along with the epithelial cells of mantle and gills [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Micromorphology and Ultrastructure of the Foot of the Equilateral Venus Gomphina veneriformis (Bivalvia: Veneridae)

Park¹,

Lee²,

Lee³

et al. 2012

CellBio

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“…In the case of Pomacea canaliculata, C. gigas and Mytilus sp., an oligogenic sex determination method was used, which is a mechanism that results in highly diversified sex ratio and sex determination by small number of genes ( Guo et al, 1998 ; Yusa, 2007 ). Changes in sex ratio due to exposure to pollutants, such as EDCs (endocrine disrupting chemicals) during the inactive season, have also been reported in Mya arenaria ( Gagné et al, 2003 ), Gomphina veneriformis ( Lee & Park, 2007 ; Ju et al, 2009 ) and Scapharca broughtonii ( Lee et al, 2009 ).…”

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confidence: 96%

Sex Ratio and Sex Reversal in Two-year-old Class of Oyster, Crassostrea gigas (Bivalvia: Ostreidae)

Park¹,

Kim²,

Kang³

et al. 2012

Development &Amp; Reproduciton

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The sex ratio (F:M) in the same population of oyster, Crassostrea gigas at the commencement of the study (2007) was 1:1.0, but changed to 1:2.8 by the end of the study (2008). The sex reversal rate in two-year-old oysters was 40.2%. Specifically, female to male sex reversal rate was 66.1%, which is higher than the male to female sex reversal rate of 21.1%. The sex reversal pattern of C. gigas appears to go from male⇒female⇒male, and as such is determined to be rhythmical hermaphroditism.

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“…Factors such as temperature, food availability and day length are involved in environmental sex determination of bivalves (Yusa, 2007). Changes in sex ratio due to exposure to pollutants, such as EDCs and heavy metals during the inactive season, have also been reported in Mya arenaria (Gagné et al, 2005), G. veneriformis (Lee & Park, 2007; Ju et al, 2009) and Scapharca broughtonii (Lee et al, 2009). …”

Section: Discussionmentioning

confidence: 90%

Indirect Evidence on Sex Reversal of Sinonovacula constricta (Bivalvia: Euheterodonta) and Gomphina veneriformis (Bivalvia: Veneridae)

Shin

Park

Choi

et al. 2014

Development &Amp; Reproduciton

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This study attempts to propose the possibility of the sex reversal in Sinonovacula constricta and Gomphina veneriformis by confirming the changes in the sex ratio with the shell length in the same population level. For analysis of sex ratio, 100 individuals of S. constricta (SL 26.5-95.0 mm) and 2385 individuals of G. veneriformis (SL 15.1-60.1 mm) were used. Sex was analyzed histologically. Both species displayed the tendency of increase in the female proportion with increase in shell length. In this study, changes in the sex ratio in accordance with the growth of S. constricta and G. veneriformis are determined to be indirect evidence that signifies their sex reversal.

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Reproductive disrupting effect of organotin compound in the ark shell,scapharca broughtonii(Bivalvia: Arcidae)

Cited by 13 publications

References 15 publications

Micromorphology and Ultrastructure of the Foot of the Equilateral Venus <i>Gomphina veneriformis</i> (Bivalvia: Veneridae)

Micromorphology and Ultrastructure of the Foot of the Equilateral Venus <i>Gomphina veneriformis</i> (Bivalvia: Veneridae)

Sex Ratio and Sex Reversal in Two-year-old Class of Oyster, Crassostrea gigas (Bivalvia: Ostreidae)

Indirect Evidence on Sex Reversal of Sinonovacula constricta (Bivalvia: Euheterodonta) and Gomphina veneriformis (Bivalvia: Veneridae)

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Reproductive disrupting effect of organotin compound in the ark shell,scapharca broughtonii(Bivalvia: Arcidae)

Cited by 13 publications

References 15 publications

Micromorphology and Ultrastructure of the Foot of the Equilateral Venus &lt;i&gt;Gomphina veneriformis&lt;/i&gt; (Bivalvia: Veneridae)

Micromorphology and Ultrastructure of the Foot of the Equilateral Venus &lt;i&gt;Gomphina veneriformis&lt;/i&gt; (Bivalvia: Veneridae)

Sex Ratio and Sex Reversal in Two-year-old Class of Oyster, Crassostrea gigas (Bivalvia: Ostreidae)

Indirect Evidence on Sex Reversal of Sinonovacula constricta (Bivalvia: Euheterodonta) and Gomphina veneriformis (Bivalvia: Veneridae)

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Micromorphology and Ultrastructure of the Foot of the Equilateral Venus <i>Gomphina veneriformis</i> (Bivalvia: Veneridae)

Micromorphology and Ultrastructure of the Foot of the Equilateral Venus <i>Gomphina veneriformis</i> (Bivalvia: Veneridae)