Toxic effects of oxine-copper on development and behavior in the embryo-larval stages of zebrafish

2019 ◽  
Vol 210 ◽  
pp. 242-250 ◽  
Author(s):  
Honglei Wang ◽  
Liqun Zhou ◽  
Xinjun Liao ◽  
Zhen Meng ◽  
Juhua Xiao ◽  
...  
2013 ◽  
Vol 35 (2) ◽  
pp. 438-447 ◽  
Author(s):  
Pablo Balseiro ◽  
Rebeca Moreira ◽  
Rubén Chamorro ◽  
Antonio Figueras ◽  
Beatriz Novoa

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e12121
Author(s):  
William B. Riley ◽  
Simone Policena Rosa ◽  
Luiz Felipe Lima da Silveira

Background Fireflies (Coleoptera: Lampyridae) are commonly recognized by adult traits, such as a soft exoskeleton, lanterns and associated glow and flash patterns, but their larval stage is far less appreciated. However, fireflies spend most of their lives as larvae, and adults of most species rely solely on resources previously obtained. Therefore, studying the immature stages is imperative towards a comprehensive understanding of fireflies. This paper reviews and indicates key gaps in the biology of firefly larvae based on available literature. Methodology We reviewed the literature on firefly larvae to identify key issues and important taxonomic, geographic, and subject biases and gaps. Results We found 376 papers that included information on firefly larvae. Only 139 species in 47 genera across eight of eleven lampyrid subfamilies have been studied during larval stages. These numbers reveal a staggering gap, since 94% of species and over half of the genera of fireflies were never studied in a crucial stage of their life cycle. Most studies on firefly larvae focus on two subfamilies (Luciolinae and Lampyrinae) in four zoogeographic regions (Sino-Japanese, Oriental, Nearctic, and Palearctic), whereas the other subfamilies and regions remain largely unstudied. These studies mainly dealt with morphology and behavior, other subjects remaining greatly understudied by comparison, including habitats, life cycle, physiology and interactions. Conclusions Together, these literature biases and gaps highlight how little is known about firefly larvae, and warmly invite basic and applied research, in the field and in the lab, to overcome these limitations and improve our understanding of firefly biology to better preserve them.


2018 ◽  
Vol 156 ◽  
pp. 263-270 ◽  
Author(s):  
Angelica Plata-Rueda ◽  
Juliana Mendonça Campos ◽  
Gabriela da Silva Rolim ◽  
Luis Carlos Martínez ◽  
Marcelo Henrique Dos Santos ◽  
...  

2018 ◽  
Vol 66 (4) ◽  
pp. 1390
Author(s):  
Liliana Diodato ◽  
Andrea Fuster

Palpita flegia (Cramer 1777) (Lepidoptera, Crambidae), is a pest insect that feeds on the foliage of Cascabela thevetia (L.) Lippold. The integrated management of the species a full knowledge about its biology and behavior. The objective of this study was to determine the number of larval stages and duration of biological phases in P. flegia under laboratory conditions, to determine the caloric requirements expressed in degrees days and to describe the ethological aspects of the species. Palpita flegia has six larval development stages. The larval phase lasted 25 days, the pupal phase 16 days, and adult survival was five days. This species requires 403.52 degree days for the development of the biological cycle. Population increases during fall with average temperatures of 15 °C and relative humidity of 60 to 75 %. Presence of the pupal parasitoid Brachymeria flegiae Burks, 1960 (Hymenoptera, Chalcididae) was verified. Sanitary pruning and conservation of natural enemies are indicated as measures for pest control.


2017 ◽  
Vol 101 ◽  
pp. 84-93 ◽  
Author(s):  
K. Dale ◽  
J.D. Rasinger ◽  
K.L. Thorstensen ◽  
S. Penglase ◽  
S. Ellingsen

2020 ◽  
Vol 27 (06) ◽  
pp. 1217-1223
Author(s):  
Sameena Gul Memon ◽  
Pashmina Shaikh ◽  
Muhammad Yaqoob Shahani ◽  
Umbreen Bano ◽  
Shazia Rani ◽  
...  

Cisplatin (Cis) has been proved to be successful in treating cancers but it has several toxicities. Central nervous system toxicity is considered as one of its most common toxic effects. Vitamin E and Green tea are antioxidant with proven results on prevention of life threatening diseases. Objectives: To assess the preventive role of two antioxidants vitamin E and green tea against cisplatin induced neurobehavioral abnormalities in albino mice. Study Design: Experimental Study. Setting: Department of Anatomy, Liaquat University of Medical and Health Sciences (LUMHS) Jamshoro, in collaboration with Sindh Agriculture University TandoJam. Material & Methods: A total of 60 mice were grouped in to Group A, (control), Group B (Cisplatin), Group C (Cisplatin plus vitamin E) and Group D (cisplatin plus green tea). The weight, gross features and behavior of the animals was monitored before and in between drug administration.  Behavioral studies were performed in quiet atmosphere, and included Pain stimulation test, heat Stimulation test, cold Stimulation test, Hearing, Object Recognition test. Results: A significant decrease in weight and body hair of the Cis treated animals was noticed as compared to control animals.  Paw edema, mental orientation, object recognition, noise stimulation, heat and cold stimulation, time to move away from the stimulus were also significantly different to control.  All features were improved with the addition of vitamin E and green tea. Conclusion: Toxic effects of cisplatin, on morphology and behavior of adult albino mice partially abrogated with antioxidant supplementation.


EDIS ◽  
2021 ◽  
Vol 2021 (2) ◽  
pp. 4
Author(s):  
Gregory Parrow ◽  
Adam Dale

Pheropsophus aequinoctialis (L.) is a ground beetle in the tribe, Brachinini, native to parts of South and Central America. Ground beetles of this tribe are commonly referred to as bombardier beetles due to their ability to produce a powerful and hot defensive chemical spray directed at would-be predators. This spray is capable of harming humans, resulting in discomfort, physical burns (due to the spray temperature), and possibly contact dermatitis. The adults of this species are nocturnal and believed to be generalist predators and scavengers. However, larval stages appear to depend on an exclusive diet of mole cricket eggs. As such, Pheropsophus aequinoctialis may have potential use as a biological control agent against certain invasive mole cricket pests in North America. This article describes this insects biology, development, and behavior. Also published on the Featured Creatures website at http://entnemdept.ufl.edu/Creatures/BeneFICIAL/beetles/Pheropsophus_aequinoctialis.html


2015 ◽  
Vol 32 ◽  
Author(s):  
SCOTT M. TAYLOR ◽  
ELLIS R. LOEW ◽  
MICHAEL S. GRACE

AbstractUnlike the mammalian retina, the teleost fish retina undergoes persistent neurogenesis from intrinsic stem cells. In marine teleosts, most cone photoreceptor genesis occurs early in the embryonic and larval stages, and rods are added primarily during and after metamorphosis. This study demonstrates a developmental paradigm in elopomorph fishes in which retinas are rod-dominated in larvae, but undergo periods of later cone genesis. Retinal characteristics were compared at different developmental stages among three ecologically distinct elopomorph fishes—ladyfish (Elops saurus), bonefish (Albula vulpes), and speckled worm eel (Myrophis punctatus). The objectives were to improve our understanding of (1) the developmental strategy in the elopomorph retina, (2) the functional architecture of the retina as it relates to ecology, and (3) how the light environment influences photoreceptor genesis. Photoreceptor morphologies, distributions, and spectral absorption were studied at larval, juvenile, and adult stages. Premetamorphic retinas in all three species are rod-dominated, but the retinas of these species undergo dramatic change over the course of development, resulting in juvenile and adult retinal characteristics that correlate closely with ecology. Adult E. saurus has high rod densities, grouped photoreceptors, a reflective tapetum, and longer-wavelength photopigments, supporting vision in turbid, low-light conditions. Adult A. vulpes has high cone densities, low rod densities, and shorter-wavelength photopigments, supporting diurnal vision in shallow, clear water. M. punctatus loses cones during metamorphosis, develops new cones after settlement, and maintains high rod but low cone densities, supporting primarily nocturnal vision. M. punctatus secondary cone genesis occurs rapidly throughout the retina, suggesting a novel mechanism of vertebrate photoreceptor genesis. Finally, in postsettlement M. punctatus, the continuous presence or absence of visible light modulates rod distribution but does not affect secondary cone genesis, suggesting some degree of developmental plasticity influenced by the light environment.


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