Megadenus atrae n. sp., an endoparasitic eulimid gastropod (Mollusca) from the black sea cucumber Holothuria atra Jaeger (Aspidochirotida: Holothuriidae) in the Indo-West Pacific

2017 ◽  
Vol 94 (6) ◽  
pp. 699-709
Author(s):  
Tsuyoshi Takano ◽  
Anders Warén ◽  
Yasunori Kano
Keyword(s):  
Black Sea ◽  
Sea Cucumber ◽  
The Black Sea ◽  
West Pacific ◽  
Holothuria Atra

scholarly journals Black sea cucumber (Holothuria atra Jaeger, 1833) rescues Pseudomonas aeruginosa-infected Caenorhabditis elegans via reduction of pathogen virulence factors and enhancement of host immunity

2019 ◽  
Author(s):  
Wan-Ting Lee ◽  
Boon-Khai Tan ◽  
Su-Anne Eng ◽  
Gan Chee Yuen ◽  
Kit Lam Chan ◽  
...  
Keyword(s):  
Caenorhabditis Elegans ◽  
Virulence Factors ◽  
Black Sea ◽  
Sea Cucumber ◽  
Indole Alkaloid ◽  
Host Immunity ◽  
The Black Sea ◽  
C Elegans ◽  
Pathogen Virulence ◽  
Holothuria Atra

AbstractA strategy to circumvent the problem of multidrug resistant pathogen is consumption of functional food rich in anti-infectives targeting bacterial virulence or host immunity. The black sea cucumber (Holothuria atra) is a tropical marine sea cucumer species traditionally consumed as remedy for many ailments. There is a paucity of knowledge the anti-infectives capacity of H. atra and the underlying mechanisms involved. The objectives of this study were to utilize the Caenorhabditis elegans-P. aeruginosa infection model to assess the anti-infective properties of H. atra. We first showed the capacity of a H. atra extract and fraction in promoting survival of C. elegans during a customarily lethal P. aeruginosa infection. The same chemical entities also attenuate the production of several P. aeruginosa virulence factors and biofilm. Treatment of infected transgenic lys-7::GFP worms with H. atra fraction restored the repressed expression of lys-7, a defense enzyme, indicating improved host immunity. QTOF-LCMS analysis revealed the presence of aspidospermatidine, an indole alkaloid and inosine. Collectively, our finding shows that H. atra confers survival advantage in C. elegans against P. aeruginosa infection through inhibition of pathogen virulence and eventually, the restitution of host lys-7 expression.

A triterpene glycoside from the black sea cucumber Holothuria atra

2019 ◽  
Author(s):  
YE Puspitasari ◽  
E Tuenter ◽  
K Foubert ◽  
L Pieters ◽  
T De Bruyne ◽  
...  
Keyword(s):  
Black Sea ◽  
Triterpene Glycoside ◽  
Sea Cucumber ◽  
The Black Sea ◽  
Holothuria Atra

scholarly journals THE OCCURENCE & DISTRIBUTION OF TWO BLACK SEA CUCUMBER SPECIES IN POMBO ISLAND, CENTRAL MALUKU (INDONESIA)

2016 ◽  
Vol 40 (2) ◽  
pp. 49-63
Author(s):  
Ana Setyastuti
Keyword(s):  
Black Sea ◽  
Sea Cucumber ◽  
Local Community ◽  
The Black Sea ◽  
Sea Cucumbers ◽  
Field Surveys ◽  
Distribution Maps ◽  
Holothuria Atra

The so called “black sea cucumber” are found in Indonesia as several species including Holothuria atra, H. leucospilota, H. coluber, H. excellens and H. turriscelsa. The local community of Wainure village near Pombo Island in central Maluku had reported that most sea cucumbers inhabiting the island are the black sea cucumbers or locally known as “teripang hitam.” They are occasionally consumed but not exploited excessively by the locals. The goals of this study are to identify the species of black sea cucumbers inhabiting Pombo Island and map their distribution to understand the microhabitats of black sea cucumber. Two field surveys conducted in March and April 2014 collected more than 550 individuals of black sea cucumbers that belong to two species Holothuria (Halodeima) atra Jaeger, 1833, and Holothuria (Mertensiothuria) leucospilota Brandt, 1835. Furthermore, distribution maps of these two species show that they are found only along the SE to SW coast of the island. Such distribution may relate to the availability of marine vegetation, as well as boulders and stones that provide shelters to the organism. The distribution maps also show that H. atra has a wider distribution than H. leucospilota in Pombo Island. This may be due to the semi-cryptic habit of H. Leucospilota’s (i.e. hiding its posterior body under rocks or crevices), making its distribution restricted to areas that provide ample shelters.

scholarly journals Black sea cucumber (Holothuria atra Jaeger, 1833) rescues Pseudomonas aeruginosa-infected Caenorhabditis elegans via reduction of pathogen virulence factors and enhancement of host immunity

2019 ◽  
Vol 10 (9) ◽  
pp. 5759-5767
Author(s):  
Wan-Ting Lee ◽  
Boon-Khai Tan ◽  
Su-Anne Eng ◽  
Gan Chee Yuen ◽  
Kit Lam Chan ◽  
...  
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Virulence Factors ◽  
Black Sea ◽  
Sea Cucumber ◽  
Multidrug Resistant ◽  
Host Immunity ◽  
Bacterial Virulence ◽  
Pathogen Virulence ◽  
Multidrug Resistant Pathogens ◽  
Holothuria Atra

A strategy to circumvent the problem of multidrug resistant pathogens is the discovery of anti-infectives targeting bacterial virulence or host immunity.

scholarly journals HUBUNGAN PANJANG BERAT DAN FAKTOR KONDISI TERIPANG HITAM (Holothuria atra) DI KAWASAN TAMAN NASIONAL LAUT KARIMUNJAWA Length-Weight Relationship and Condition Factor of Black Sea Cucumber (Holothuria atra) in Karimunjawa National Marine Park Area

2020 ◽  
Vol 8 (4) ◽  
pp. 327-336
Author(s):  
Citraningrum Mawa Panuluh ◽  
Bambang Sulardiono ◽  
Nurul Latifah
Keyword(s):  
Black Sea ◽  
Sea Cucumber ◽  
Condition Factor ◽  
Economic Value ◽  
Relative Weight ◽  
Marine Biota ◽  
Sea Cucumbers ◽  
Relationship Length ◽  
Weight Condition ◽  
Holothuria Atra

Teripang Hitam (H. atra) merupakan jenis biota laut yang memiliki nilai ekologis dan ekonomis di perairan Taman Nasional Laut Karimunjawa. Tujuan penelitian ini adalah menganalisis hubungan panjang berat, faktor kondisi dan analisis perbedaan antara Holothuria atra(teripang hitam) yang hidup di zona perairan budidaya dan wisata dengan yang hidup di zona rehabilitasi. Pengambilan sampel teripang dilakukan pada siang hari di 3 stasiun zona budidaya dan wisata yaitu Menjangan Kecil, Menjangan Besar dan perairan sekitar Wisma Apung serta 1 stasiun zona rehabilitasi yaitu di Perairan Alang-alang. Pengamatan sampel teripang dilakukan secara sensus. Total sampel yang diperoleh di Alang-alang sebanyak 30 individu dengan kisaran panjang 13-43 cm, berat 49-514 g, Sampel di Menjangan kecil sebanyak 17 individu dengan kisaran panjang 9-26 cm, berat 20-260 g, sampel Menjangan Besar sebanyak 5 individu kisaran panjang 16-23 cm berat 66-193 g dan sampel di perairan sekitar Wisma Apung sebanyak 17 sampel kisaran panjang 14-28 cm berat 23-260 g. Pertumbuhan teripang di masing-masing perairan menunjukkan pola pertumbuhan allometrik negatif yang artinya penambahan panjang lebih cepat daripada penambahan bobot. Nilai faktor kondisi Fulton teripang hitam di Alang-alang 1,34, Menjangan Kecil 1,91, Menjangan Besar 1,89, serta perairan sekitar Wisma Apung 1,37, menunjukkan teripang hitam di perairan yang banyak pengunjung lebih gemuk daripada teripang hitam di Alang-alang yang sepi pengunjung, serta faktor kondisi berat relatif alang-alang 104,27, Menjangan Kecil 104,25, Menjangan Besar 105,59 dan Wisma Apung 108,22 masing-masing perairan semua diatas 100 menunjukkan perairan tersebut menyediakan surplus makanan yang cukup.  Black Sea Cucumber (H. atra) is a type of marine biota that has ecological and economic value in the waters of the Karimunjawa Marine National Park. The purpose of this study was to analyze the relationship length-weight, condition factor and analysis of differences between Holothuria atra (black sea cucumbers) that live in cultivation and tourism zones and those that live in rehabilitation zones. Sea cucumber sampling is conducted at noon in 3 stations of the cultivation and tourism zones, namely Menjangan Kecil, Menjangan Besar and the waters around Wisma Apung and 1 rehabilitation zone station in Alang-alang. Observation of sea cucumber samples is done by census. Total samples obtained in Alang-alang were 30 individuals with a range of length 13-43 cm, weight 49-514 g, sampel in Menjangan Kecil were 17 individuals with a range of length 9-26 cm, weight 20-260 g, sampel in Menjangan Besar were 5 individuals with a range of length 16-23 cm, weight 66-193 g, and last sampel in waters around Wisma Apung were 17 individuals with a range of length 14-28 cm weight 23-260 g. The growth of sea cucumbers in each waters shows a negative allometric growth pattern which means that the addition of the length is faster than the addition of the weight. Fulton’s condition factor values of black sea cucumber in Alang-alang 1.34, Menjangan Kecil 1.91, Menjangan Besar 1.89, and waters around Wisma Apung 1.37, shows that black sea cucumbers in the waters that many visitors are fatter than black sea cucumbers in the Alang-alang which deserted visitors, and the relative weight condition factors of Alang-alang 104.27, Menjangan Kecil 104.25, Menjangan Besar 105.59 and Wisma Apung 108.22 each of the waters above 100 indicates that these waters provide sufficient food surplus.

In vitro oocyte maturation by radial nerve extract and early development of the black sea cucumber (Holothuria leucospilota)

Aquaculture ◽  
2018 ◽  
Vol 495 ◽  
pp. 247-254 ◽  
Author(s):  
Hoang Dinh Chieu ◽  
Saowaros Suwansa-ard ◽  
Tomer Abramov ◽  
Abigail Elizur ◽  
Scott F. Cummins
Keyword(s):  
Early Development ◽  
Black Sea ◽  
Oocyte Maturation ◽  
Radial Nerve ◽  
Sea Cucumber ◽  
The Black Sea ◽  
In Vitro Oocyte Maturation

First rDNA sequence data for Haplosplanchnus pachysomus (Digenea: Haplosplanchnidae) ex Mugil cephalus from the Black Sea, and molecular evidence for cryptic species within Haplosplanchnus pachysomus (Digenea: Haplosplanchnidae) in Palaearctic and Indo-West Pacific regions

2021 ◽  
Vol 95 ◽  
Author(s):  
D.M. Atopkin ◽  
N.V. Pronkina ◽  
Yu.V. Belousova ◽  
M.P. Plaksina ◽  
E.A. Vodiasova
Keyword(s):  
Cryptic Species ◽  
Black Sea ◽  
Sequence Data ◽  
Mugil Cephalus ◽  
The Black Sea ◽  
Molecular Evidence ◽  
West Pacific ◽  
Rdna Sequence Data ◽  
Molecular Base ◽  
28S Ribosomal Dna

Abstract Adult trematodes, morphologically similar to Haplosplanchnus pachysomus (Eysenhardt, 1829), were extracted from the intestine of Mugil cephalus Linnaeus, 1758, collected in the Black Sea basin. Morphological, morphometric and 28S ribosomal DNA (rDNA) partial sequence data were obtained for these trematodes following comparative analysis with previous data on this species. Worms from this study were morphologically identical to all previously reported H. pachysomus specimens from different locations. The results of the morphometric analysis indicated general similarity between H. pachysomus from the Black Sea and trematodes from Vietnam and Australia. Trematodes from the Black Sea and specimens from Spain were identical based on 28S rDNA partial sequences; however, these sequences differed from that of H. pachysomus from Vietnam and Australia by eight fixed substitutions. Overall, our results indicate that H. pachysomus from Spain and the Black Sea and from Vietnam and Australia can presently be considered as two cryptic species, one in Palaearctic and one in Indo-West Pacific regions. Our results provide a molecular base for including Haplosplanchnus purii in the genus Provitellotrema or to consider H. purii, P. crenimugilis and H. pachysomus within the same genus.

scholarly journals Anticancer potency of black sea cucumber (Holothuria atra) from Mentawai Islands, Indonesia

2017 ◽  
Vol 29 (1) ◽  
Author(s):  
Mieke Hemiawati Satari ◽  
Utmi Arma ◽  
Syafruddin Ilyas ◽  
Dian Handayani
Keyword(s):  
Anticancer Activity ◽  
Black Sea ◽  
Sea Cucumber ◽  
Dominant Species ◽  
Cytotoxic Effects ◽  
Cytotoxic Test ◽  
Mentawai Islands ◽  
Key Factor ◽  
Experimental Laboratory ◽  
Holothuria Atra

Introduction: The source of bioactive compounds believed to have strong anticancer potency is derived from sea cucumber. Black sea cucumber (Holothuria atra) is a dominant species in Mentawai Islands, West Sumatera, Indonesia. Key factor compound that acts as anticancer in sea cucumber extract is tritepenoid also known as Frondoside A. The purpose of this study was to determine the effectiveness of the active compound taken from black sea cucumber as anticancer. Methods: Methods used was experimental laboratory. Anticancer activity of black sea cucumber was determined by using the MTT assay cytotoxic test to measure the IC50. Cytotoxic test was conducted with Supris clone-1 (SP-C1) derived from cloned lymphadenopathy of patients with oral squamous cell carcinoma on lingual part. Results: It was found that the compounds contained in black sea cucumber has strong anticancer activity (IC50 = 5.25 μL/mL) against SP-C1. Conclusion: Black sea cucumber extract has strong cytotoxic effects against cancer cells SP-C1, therefore black sea cucumber extract potentially developed as a new source of cancer medicine.

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