scholarly journals Identificación molecular y relaciones evolutivas de Pomacea nobilis, base para la autenticación específica del churo negro de la Amazonia peruana

2020 ◽  
Vol 27 (2) ◽  
pp. 139-148
Author(s):  
Rina Ramírez ◽  
Maria Solis ◽  
André Ampuero ◽  
Jaime Morín ◽  
Victor Jimenez-Vasquez ◽  
...  
Keyword(s):  
Pomacea Maculata

En la Amazonia Peruana los caracoles dulceacuícolas de la familia Ampullariidae son conocidos como churos y originalmente han sido descritas para Perú alrededor de 20 especies. Aunque son muy usadas para alimentación, medicina tradicional y objeto de muchos estudios para su cultivo e industrialización, solamente es mencionada en la literatura la especie Pomacea maculata. Se llevó a cabo la identificación molecular sobre la base del marcador mitocondrial COI, de individuos de churos negros (Pomacea) comercializados en los mercados de Iquitos, así como los usados en platos a la carta en la ciudad de Lima, contrastados con otros individuos de procedencia de su hábitat natural. Se encontró que estos especímenes expendidos corresponden a la especie Pomacea nobilis (Reeve, 1856). El análisis filogenético molecular mostró que P. nobilis es especie hermana de P. guyanensis, en el grupo de P. glauca, distantemente relacionada de P. maculata. Las distancias no corregidas encontradas entre ellas, para el marcador mitocondrial COI, fueron de 11.33% a 13.17%, mientras que con P. maculata fueron de 13.67% a 15.33%. Estos resultados demostraron la eficacia del código de barras de ADN para la identificación y autenticación de la especie, lo que le da un valor agregado para su eventual comercio de exportación.

Pomacea maculata.

2021 ◽  
Author(s):  
Rob Cowie ◽  
Romi L. Burks ◽  
Amy E. Miller ◽  
Alexandria L. Hill
Keyword(s):  
Invasive Species ◽  
South America ◽  
Species Identification ◽  
Geographical Area ◽  
Freshwater Snail ◽  
Pomacea Canaliculata ◽  
Apple Snail ◽  
Pomacea Maculata ◽  
Golden Apple Snail ◽  
History Of

Abstract P. maculata is a freshwater snail native to a wide geographical area in South America from the Rio de la Plata in Argentina and Uruguay to the Amazon in Brazil. It is commonly confused with any number of similar large apple snails, including the well-known invasive golden apple snail Pomacea canaliculata (listed among '100 of the world's worst invasive species'). Both species have been introduced to South-East and East Asia, although for many years they were not distinguished and the Asian introductions were widely identified as "golden apple snails" and the name P. canaliculata was applied to them. Due to the confusion in species identification, the history of introduction of P. maculata remains somewhat uncertain as does its invasiveness and pest potential. Much of the literature is confounded, for example, the snails illustrated by Cowie (2002) as P. canaliculata are in fact P. maculata. The majority of invasive populations in Asia appear to be P. canaliculata, often not mixed with P. maculata (Hayes et al., 2008; Tran et al., 2008) and the pest potential of P. canaliculata in such cases is clear. However, much less has been written about the invasiveness and pest potential of 'P. maculata'.

A Pilot Study Testing a Natural and a Synthetic Molluscicide for Controlling Invasive Apple Snails (Pomacea maculata)

2015 ◽  
Vol 96 (3) ◽  
pp. 289-294 ◽  
Author(s):  
Heather M. Olivier ◽  
Jill A. Jenkins ◽  
Mark Berhow ◽  
Jacoby Carter
Keyword(s):  
Pilot Study ◽  
Pomacea Maculata

scholarly journals Development and Evaluation of Poly Herbal Molluscicidal Extracts for Control of Apple Snail (Pomacea maculata)

Agriculture ◽  
2017 ◽  
Vol 7 (3) ◽  
pp. 22 ◽  
Author(s):  
Guruswamy Prabhakaran ◽  
Subhash Bhore ◽  
Manikam Ravichandran
Keyword(s):  
Apple Snail ◽  
Pomacea Maculata

scholarly journals Larval trematodes in freshwater gastropods from Mato Grosso, Brazil: diversity and host-parasites relationships

2013 ◽  
Vol 13 (4) ◽  
pp. 34-38 ◽  
Author(s):  
Aline Carvalho de Mattos ◽  
Maria Fernanda Furtado Boaventura ◽  
Monica Ammon Fernandez ◽  
Silvana Carvalho Thiengo
Keyword(s):  
Schistosoma Mansoni ◽  
Intermediate Host ◽  
Intermediate Hosts ◽  
Mato Grosso ◽  
Freshwater Gastropods ◽  
Larval Stages ◽  
Pomacea Maculata ◽  
Surrounding Areas ◽  
First Time

A survey for freshwater gastropods carrying trematodes parasites was conducted in Manso Dam and the surrounding areas frequented by tourist, focusing particularly on the Pantanal region. Infected snails were recovered from twelve of the eighteen investigated municipalities and forty-one cercaria-snail pairings were recorded. Among these pairings were several first records of snails serving as intermediate hosts for trematodes in Brazil including Biomphalaria amazônica Paraense, 1966, Biomphalaria occidentalis Paraense, 1981, Marisa planogyra Pilsbry, 1933, Pomacea maculata Perry, 1830, Pomacea scalaris (d'Orbigny, 1835) and Gundlachia radiata (Guilding, 1828). Echinostomatidae and Strigeidae were the most common trematode families (ca. 47%) and the greatest diversity of larvae were obtained from Drepanotrema lucidum (Pfeiffer, 1839). Paramphistomatidae, Schistosomatidae or Spirorchiidae and Notocotylidae or Pronocephalidae were recovered in D. lucidum for the first time extending the number of families which use this gastropod as intermediate host. Although no specimens were found harboring larval stages of Schistosoma mansoni Sambon, 1907 other trematode larvae were discovered, including the Schistosomatidae Brevifurcate apharingeate cercaria that can cause dermatitis in humans. Continued studies on the taxonomy and biology of trematodes are essential to better understand the biodiversity of these parasites as well as the epidemiological aspects for control of associated zoonosis.

Genetic exchange between two freshwater apple snails, Pomacea canaliculata and Pomacea maculata invading East and Southeast Asia

2013 ◽  
Vol 15 (9) ◽  
pp. 2039-2048 ◽  
Author(s):  
Keiichiro Matsukura ◽  
Mitsuru Okuda ◽  
Néstor Jorge Cazzaniga ◽  
Takashi Wada
Keyword(s):  
Southeast Asia ◽  
Genetic Exchange ◽  
Pomacea Canaliculata ◽  
Pomacea Maculata ◽  
East And Southeast Asia

scholarly journals Non-digestible proteins and protease inhibitors: implications for defense of the colored eggs of the freshwater apple snailPomacea canaliculata

2019 ◽  
Vol 97 (6) ◽  
pp. 558-566 ◽  
Author(s):  
Santiago Ituarte ◽  
Tabata Romina Brola ◽  
Marcos Sebastián Dreon ◽  
Jin Sun ◽  
Jian-Wen Qiu ◽  
...  
Keyword(s):  
Quaternary Structure ◽  
Economic Losses ◽  
Pomacea Canaliculata ◽  
Apple Snail ◽  
Medical Issues ◽  
Biological Potential ◽  
Pomacea Maculata ◽  
Biochemical Validation ◽  
Rat Growth ◽  
Ancient Gene Duplication

Apple snails (Pomacea Perry, 1810) are successful invaders that cause ecological perturbations, economic losses, and medical issues. A peculiar trait of this snail is a high biological potential, related to the absence of predators of their eggs. Eggs show protease inhibitor (PI) activity, originally ascribed to PcOvo perivitellin in the apple snail Pomacea canaliculata (Lamarck, 1822) but absent in PmPV1, the orthologoue of PcOvo, in eggs of the apple snail Pomacea maculata Perry, 1810. As egg fluid diminishes rat growth rate, an antidigestive effect, similar to plant defenses against herbivory, was hypothesized. However, PI activity has not been characterized in apple snail eggs. Here we identify and partially characterize P. canaliculata egg PI and improve our knowledge of the quaternary structure and evolution of PcOvo. Through N-terminal, transcriptomic or proteomic sequencing, and biochemical validation, we identified a Kunitz-type and a Kazal-type inhibitor that, though at low concentration in the egg, exhibit strong PI activity against trypsin, chymotrypsin, elastase, and subtilisin. Additionally, we report three new subunits for the non-digestible storage protein PcOvo. They are likely products of ancient gene duplication, as their sequences exhibit moderate similarity (30%). To our knowledge, this is the first report of Kazal-type inhibition among invertebrate eggs. Inhibiting varied proteases, PI seems an efficient adaptive trait that limits predator’s capacity to digest egg nutrients.

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