Histopathological Observation of White Spot Syndrome Virus and Infectious Hypodermal and Hematopoietic Necrosis Virus in Shrimp Farms, Litopenaeus vannamei, in Bushehr Province, Iran

Pazir, Mohammad Khalil; Afsharnasa, M.; Niamaymand, N.; Khadem, H.; Akbarpour, elham; Zendebudi, A.A.

doi:10.3923/ajas.2012.209.219

Cited by 15 publications

(14 citation statements)

References 15 publications

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“…Grewal and Jia (2007) suggested that chromatin clumping reduce transcription. Our results agreed with Pazir et al (2011) who observed nuclear inclusions in the nuclei of shrimp infected with two viral diseases. They figured out that these inclusion bodies were the first sign in cellular degeneration and resulted in pyknosis.…”

Section: Discussionsupporting

confidence: 93%

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Midgut cells alteration in gamma-irradiated beetles (Blaps polycresta, Coleoptera: Tenebrionidae)

Kheirallah

El-Samad

2020

Braz. J. Biol.

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Abstract This study was conducted to examine the effect of gamma radiation on biological specimens. Thus, our concept is to clarify that exposure to accumulated dose of 0.2 Gy gamma rays (0.66 rad/Sec. dose rate) from Cs137 source induces cellular perturbations in the midgut epithelium of the F1 progeny of Blaps polycresta, therefore affecting nutrition and growth. Beetles were reared in laboratory conditions and the newly emerged adults were irradiated with the aforementioned dose. Histological and ultrastructure anomalies of midgut cells (digestive and regenerative cells) were observed by 72 h after radiation exposure to ensure that the cells will not return to control state. Retardation in the development of the F1 progeny was also noticed and beetles died through two weeks. In the light of these observations, biological tissue act as an indicator to the continuous exposure to environmental radiation.

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Section: Discussionsupporting

confidence: 93%

“…Engedal et al (1977) stated that their formation arose by the unification of membranes in the nucleoplasm. Furthermore, the course of cell death was assigned by the indentation of the nuclear envelope (Trump et al, 1997;Pazir et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

Midgut cells alteration in gamma-irradiated beetles (Blaps polycresta, Coleoptera: Tenebrionidae)

Kheirallah

El-Samad

2020

Braz. J. Biol.

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“…Our results are in agreement with those of Kheirallah and El-Samad (2019), who reported oogenesis anomalies in two Tenebrionid beetles, Blaps polycresta and Trachyderma hispida , inhabiting the industrial zone. The first sign of cell death is the nuclear deformities (Pazir et al, 2011), which are frequently seen in the trophocytes and follicular cells in this study. The toxic effect of heavy metals activates lysosomal hydrolase that is created in vacuolated areas in the cytoplasm (Kheirallah and El-Samad, 2019).…”

Section: Discussionmentioning

confidence: 63%

DNA damage and oogenesis anomalies in Pimelia latreillei (Coleoptera: Tenebrionidae) induced by heavy metals soil pollution

et al. 2019

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The present study used Pimelia latreillei as a biomonitoring insect for heavy metals soil pollution in a populated industrial area at Zawya Abd El-Qader, Alexandria, Egypt. Comet assay and histological analysis were applied to evaluate the potential risk of heavy metals. X-ray analysis of the soil samples collected from the polluted site revealed significantly increased metal percentages compared with the reference site. Moreover, a significant increase in metal percentages was detected by the X-ray analysis in insect ovaries collected from the polluted site. The Tail DNA length was significantly greater in the insects collected from the polluted site—47.6% compared with 11.4% at the reference site. Pronounced disruptions in oogenesis were observed through histological and ultrastructure investigations in insects collected from the polluted site. The study summarized the potential utility of insect biomonitors in predicting the effect of heavy metals soil pollution on occupational health.

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“…Incidence of WSSV in cultured P. vannamei is reported from Iran (Pazir et al, 2011), Taiwan (Cheng et al, 2013), Equador (Rodriguez et al, 2003) and Indonesia (Ferasyi et al, 2015). WSSV infection has caused mass mortalities of farmed P. vannamei, bringing huge loss to shrimp farmers around the world like Ecuador (Calderon et al, 1999), Brazil (Cavalli et al, 2008) and Iran (Afsharnasab et al, 2009).…”

Section: Resultsmentioning

confidence: 99%

Detection of viruses in the exotic shrimp Penaeus vannamei Boone, 1931 cultured in India

Rajeish

Murthy²,

Madhushree³

et al. 2017

Indian J. Fish.

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Pacific white shrimp Penaeus vannamei Boone, 1931, is a recently introduced species in India. P. vannamei samples, collected from various shrimp farms of Karnataka, India were subjected to polymerase chain reaction (PCR) based detection of whitespot syndrome virus (WSSV), hepatopancreatic parvovirus (HPV), monodon baculovirus (MBV), infectious hypodermal and hematopoietic necrosis virus (IHHNV), taura syndrome virus (TSV) and infectious myonecrosis virus (IMNV). Out of the 81 shrimp samples analysed, 41 samples (50.6%) were found positive for WSSV and four (4.9%) were positive for IHHNV. Among 41 WSSV positive samples, 20 (48.7%) samples were found positive for WSSV by 1 st step PCR, while the remaining 21 (51.2%) samples were positive by nested PCR. WSSV positive samples were further confirmed by dot blot hybridisation assay. However, clinical signs/disease symptoms were not observed in any of the shrimp samples tested positive for the viruses.

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Histopathological Observation of White Spot Syndrome Virus and Infectious Hypodermal and Hematopoietic Necrosis Virus in Shrimp Farms, Litopenaeus vannamei, in Bushehr Province, Iran

Cited by 15 publications

References 15 publications

Midgut cells alteration in gamma-irradiated beetles (Blaps polycresta, Coleoptera: Tenebrionidae)

Midgut cells alteration in gamma-irradiated beetles (Blaps polycresta, Coleoptera: Tenebrionidae)

DNA damage and oogenesis anomalies in Pimelia latreillei (Coleoptera: Tenebrionidae) induced by heavy metals soil pollution

Detection of viruses in the exotic shrimp Penaeus vannamei Boone, 1931 cultured in India

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