Results 21 to 30 of about 681 (150)

Mechanics of cocoon secretion in a segmented worm (Annelida: Hirudinidae) [PDF]

Micron, 2016
Clitellate annelids (e.g., segmented earthworms, leeches) secrete proteinaceous cocoons into which eggs are deposited. The process of cocoon production is characterized by the coordinated release of micro-granules from secretory cells positioned asymmetrically within the clitellum.
Anthony M, Rossi, William M, Saidel, Christopher J, Gravante, Charlene W, Sayers, Daniel H, Shain   +4 more
openaire   +2 more sources

Testisacs microanatomy and spermatogenesis of Helobdella simplex (Hirudinida: Glossiphoniidae)

Zoologia (Curitiba), 2021
ABSTRACT The aim of this study was to describe the testisac microanatomy and spermatogenesis of Helobdella simplex (Moore, 1911). The leeches were collected in the Sauce Chico River (Tornquist) during April 2012. The collection of material was carried out manually by checking rocks, logs, leaves and artificial substrates in the river bed.
Bettina S. Gullo, Estela C. Lopretto
openaire   +3 more sources

The Origin and Evolution of Antistasin-like Proteins in Leeches (Hirudinida, Clitellata) [PDF]

Genome Biology and Evolution, 2020
AbstractBloodfeeding is employed by many parasitic animals and requires specific innovations for efficient feeding. Some of these innovations are molecular features that are related to the inhibition of hemostasis. For example, bloodfeeding insects, bats, and leeches release proteins with anticoagulatory activity through their salivary secretions.
Rafael Eiji Iwama, Michael Tessler, Mark E Siddall, Sebastian Kvist   +3 more
openaire   +2 more sources

Systematics of the freshwater leech genus Hirudinaria Whitman, 1886 (Arhynchobdellida, Hirudinidae) from northeastern Thailand

ZooKeys, 2014
In total, 435 specimens of the Southeast Asian freshwater leech species within the Hirudinidae family were collected from 17 locations of various types of aquatic habitats in northeastern Thailand.
Jaruwan Tubtimon, Ekgachai Jeratthitikul, Chirasak Sutcharit, Bangon Kongim, Somsak Panha   +4 more
doaj   +1 more source

Oogenesis of Helobdella ampullariae (Hirudinida, Glossiphoniidae)

Neotropical Biology and Conservation, 2018
The knowledge of the gametogenesis in Hirudinida is an important tool that allows the understanding of the reproductive cycle. Ovogenesis of Helobdella ampullariae was described based on 30 leeches collected from mantle cavity and lung of Pomacea canaliculata .
Gullo, Bettina Sandra, Lopretto, Estela Celia   +1 more
openaire   +3 more sources

The first record of Helobdella nuda (Hirudinida, Glossiphoniidae) in lake Baikal [PDF]

Vestnik Zoologii, 2012
The First Record of Helobdella nuda (Hirudinida, Glossiphoniidae) in Lake Baikal. Kaygorodova I. A., Utevsky S. Yu. - By far, the leech species Helobdella nuda (Moore, 1924) was known from China and the Amur River basin. It is found to occur in shallow waters of Lake Baikal.
Kaygorodova, I.A., Utevsky, S.Yu.
openaire   +2 more sources

Annelida, Hirudinida, Stibarobdella moorei (Oka, 1910): new distribution and host records [PDF]

Check List, 2011
The present report is the northernmost capture of the piscicolid leech Stibarobdella moorei in the western South Atlantic Ocean. This is also the first time S. moorei is found associated to a batoid fish in the Brazilian coast, the eyespot skate Atlantoraja cyclophora.
Wunderlich, Alison Carlos, Gadig, Otto Bismarck Fazzano, Vaske Junior, Teodoro, Pinheiro, Marcelo Antonio Amaro   +3 more
openaire   +3 more sources

Developmentally regulated multisensory integration for prey localization in the medicinal leech [PDF]

, 2011
Medicinal leeches, like many aquatic animals, use water disturbances to localize their prey, so they need to be able to determine if a wave disturbance is created by prey or by another source.
Cienfuegos, Javier, Harley, Cynthia M., Wagenaar, Daniel A.   +2 more
core   +2 more sources

Yiqihuoxue Formula Activates Autophagy and Offers Renoprotection in a Rat Model of Adenine‐Induced Kidney Disease

Evidence-Based Complementary and Alternative Medicine, Volume 2019, Issue 1, 2019., 2019
Chronic kidney disease (CKD) is a worldwide health problem for which effective therapeutic methods are still lacking. Traditional Chinese medicine (TCM) has been indicated as an effective alternative treatment for kidney disease. In this study, a clinically effective therapy, yiqihuoxue (YQHX) formula, was administrated to adenine‐induced kidney ...
Chen Hui Xia, Xue Ting Han, Xueqin Zhang, Ze Bing Zhu, Jing Guo, Hai Lan Cui, Han Xue Jiang, Wei Jun Huang, Guo Zi Chen, Yu Ning Liu, Wei Jing Liu, Jairo Kennup Bastos   +11 more
wiley   +1 more source

Study on Freshwater Macroinvertebrates of Some Tanzanian Rivers as a Basis for Developing Biomonitoring Index for Assessing Pollution in Tropical African Regions

Journal of Ecosystems, Volume 2014, Issue 1, 2014., 2014
Macroinvertebrates and physicochemical parameters were assessed at 15 sites along five rivers in Kilimanjaro region, Tanzania, with the aim of understanding their ecological status and setting a base to the development of a biological index for tropical regions.
Julius D. Elias, Jasper N. Ijumba, Yunus D. Mgaya, Florence A. Mamboya, Rui Cortes   +4 more
wiley   +1 more source