Multi‐ and trans‐generational effects of chlorpyrifos exposures to Daphnia magna

2021 ◽  
Author(s):  
Stephanie A. Maggio ◽  
Jeffrey J. Jenkins
Keyword(s):  
Daphnia Magna ◽  
Generational Effects

Trans generational effects of the neurotoxin BMAA on the aquatic grazer Daphnia magna

2015 ◽  
Vol 168 ◽  
pp. 98-107 ◽  
Author(s):  
Elisabeth J. Faassen ◽  
María García-Altares ◽  
Mariana Mendes e Mello ◽  
Miquel Lürling
Keyword(s):  
Daphnia Magna ◽  
Generational Effects

Two-generational effects and recovery of arsenic and arsenate on Daphnia magna in the presence of nano-TiO2

2019 ◽  
Vol 172 ◽  
pp. 136-143 ◽  
Author(s):  
Wenhong Fan ◽  
Dingyuan Liang ◽  
Xiangrui Wang ◽  
JinQian Ren ◽  
Shengtao Xiao ◽  
...  
Keyword(s):  
Daphnia Magna ◽  
Nano Tio2 ◽  
Generational Effects

Multi-generational effects of four selected environmental oestrogens on Daphnia magna

Chemosphere ◽  
2006 ◽  
Vol 64 (1) ◽  
pp. 49-55 ◽  
Author(s):  
Sarah J. Brennan ◽  
Concepta A. Brougham ◽  
James J. Roche ◽  
Andrew M. Fogarty
Keyword(s):  
Daphnia Magna ◽  
Generational Effects

Relationship between trans-generational effects of tetracycline on Daphnia magna at the physiological and whole organism level

2014 ◽  
Vol 191 ◽  
pp. 111-118 ◽  
Author(s):  
Hyun Young Kim ◽  
Seungho Yu ◽  
Tae-yong Jeong ◽  
Sang Don Kim
Keyword(s):  
Daphnia Magna ◽  
Generational Effects

scholarly journals Grandmother's pesticide exposure revealed bi-generational effects in Daphnia magna

2021 ◽  
pp. 105861
Author(s):  
Rikke Poulsen ◽  
Henrik H. De Fine Licht ◽  
Martin Hansen ◽  
Nina Cedergreen
Keyword(s):  
Daphnia Magna ◽  
Pesticide Exposure ◽  
Generational Effects

Membrane-bound vesicles associated with the microvilli in the midgut of the freshwater microcrustacean, Daphnia magna

1983 ◽  
Vol 41 ◽  
pp. 480-481
Author(s):  
Patricia L. Jansma
Keyword(s):  
Daphnia Magna ◽  
Intestinal Epithelial Cells ◽  
Uranyl Acetate ◽  
Intestinal Epithelial ◽  
Chlamydomonas Reinhardii ◽  
Thin Sections ◽  
Saturated Water ◽  
Cacodylate Buffer ◽  
Membrane Bound ◽  
Ethanol Series

The presence of the membrane bound vesicles or blebs on the intestinal epithelial cells has been demonstrated in a variety of vertebrates such as chicks, piglets, hamsters, and humans. The only invertebrates shown to have these microvillar blebs are two species of f1ies. While investigating the digestive processes of the freshwater microcrustacean, Daphnia magna, the presence of these microvillar blebs was noticed.Daphnia magna fed in a suspension of axenically grown green alga, Chlamydomonas reinhardii for one hour were narcotized with CO2 saturated water. The intestinal tracts were excised in 2% glutaraldehyde in 0.2 M cacodyl ate buffer and then placed in fresh 2% glutaraldehyde for one hour. After rinsing in 0.1 M cacodylate buffer, the sample was postfixed in 2% OsO4, dehydrated with a graded ethanol series, infiltrated and embedded with Epon-Araldite. Thin sections were stained with uranyl acetate and Reynolds lead citrate before viewing with the Philips EM 200.

Computer Reconstruction of the Cellular Architecture of the Daphnia Magna Optic Ganglion

1975 ◽  
Vol 33 ◽  
pp. 284-285
Author(s):  
E. R. Macagno ◽  
C. Levinthal
Keyword(s):  
Daphnia Magna ◽  
Genetic Background ◽  
Compound Eye ◽  
Synaptic Connectivity ◽  
Serial Sections ◽  
Cross Sectional ◽  
Small Crustacean ◽  
Optic Ganglion ◽  
Structural Invariance ◽  
High Degree

The optic ganglion of Daphnia Magna, a small crustacean that reproduces parthenogenetically contains about three hundred neurons: 110 neurons in the Lamina or anterior region and about 190 neurons in the Medulla or posterior region. The ganglion lies in the midplane of the organism and shows a high degree of left-right symmetry in its structures. The Lamina neurons form the first projection of the visual output from 176 retinula cells in the compound eye. In order to answer questions about structural invariance under constant genetic background, we have begun to reconstruct in detail the morphology and synaptic connectivity of various neurons in this ganglion from electron micrographs of serial sections (1). The ganglion is sectioned in a dorso-ventra1 direction so as to minimize the cross-sectional area photographed in each section. This area is about 60 μm x 120 μm, and hence most of the ganglion fit in a single 70 mm micrograph at the lowest magnification (685x) available on our Zeiss EM9-S.

Mise en évidence des effets sublétaux sur des populations de daphnies (Daphnia magna)

1981 ◽  
Vol 12 (1) ◽  
pp. 63-79
Author(s):  
R. Cabridenc ◽  
Bui Thi ◽  
H. Lepailleur
Keyword(s):  
Daphnia Magna

Biological Effects of the Combined Chronic Action of 90Sr and Pb2+ on Daphnia Magna Straus

2002 ◽  
Vol 38 (4) ◽  
pp. 11
Author(s):  
M. G. Mardarevich ◽  
D. I. Gudkov ◽  
L. S. Kipnis ◽  
V. V. Belyaev
Keyword(s):  
Daphnia Magna ◽  
Biological Effects
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