Results 91 to 100 of about 85,166 (274)

Cytogenotoxic and Molecular Assessment of Pyrethrins on Non‐Target Allium cepa Roots

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT The pyrethrins, which form a part of naturally occurring insecticidal chemicals derived from chrysanthemum flowers, not only provide rapid knockdown of a broad spectrum of insect pests but are also widely used in integrated pest management due to a generally favorable safety profile, largely attributed to low mammalian toxicity.
Yudum Yeltekin Uğur   +2 more
wiley   +1 more source

Meeting in the middle before parting: metaphase-to-anaphase [Mitosis movie series; 2]

open access: yes, 2014
Presents mitotic PtK1 cell microinjected with X-rhodamine-labeled tubulin and Alexa 488-labeled CENP-F antibodies to fluorescently label kinetochore fibers (red) and kinetochores/spindle poles (green), respectively.
Cimini, Daniela   +2 more
core  

Trace Levels of Triclosan May Affect Root Growth and Morphology in Cultivated Plants

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Triclosan (TCS) is a micropollutant frequently detected in biosolids applied to agricultural soils. In soil solution—where it is potentially bioavailable to roots—it occurs at residual concentrations (ng L−1). Nevertheless, the ecotoxicological implications of TCS exposure in agricultural crops at these concentrations are still not fully ...
Lizandra de Souza Ratuchinski   +10 more
wiley   +1 more source

Oocyte Enucleation Phase in Mouse Cloning [PDF]

open access: yesInternational Journal of Fertility and Sterility, 2007
Abdolhossein Shahverdi   +2 more
doaj   +1 more source

Segregation of the univalent X chromosome in the wide-footed treehopper Enchenopa latipes (Say 1824)

open access: yesCaryologia, 2022
In metaphase I, autosomal bivalents align on the metaphase plate, while naturally-occurring univalent sex chromosomes can display a number of different behaviours depending on cellular conditions.
Leocadia Paliulis   +7 more
doaj  

Effect of oocyte selection, estradiol and antioxidant treatment on in vitro maturation of oocytes collected from prepubertal Boer goats

open access: yesItalian Journal of Animal Science, 2010
Development of improved procedures for in vitro maturation of oocytes collected from prepubertal goats has applications for in vitro embryo production and accompanying strategies for genetic improvement.
George W. Smith   +5 more
doaj   +1 more source

Effect of Propylparaben on In Vitro Maturation of Porcine Oocytes and Embryo Development

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Parabens are synthetic chemicals that, due to their antibacterial and fungicidal effects, are widely used as preservatives in food, cosmetics, and personal care products, such as shampoos, hair conditioners, body creams, soaps, deodorants, makeup, wet wipes, lotions, female hygiene products, and vaginal lubricants. Several years ago, they were
Elivier Núñez‐Macías   +10 more
wiley   +1 more source

PIASgamma is required for faithful chromosome segregation in human cells.

open access: yesPLoS ONE, 2006
BackgroundThe precision of the metaphase-anaphase transition ensures stable genetic inheritance. The spindle checkpoint blocks anaphase onset until the last chromosome biorients at metaphase plate, then the bonds between sister chromatids are removed and
Laura A Díaz-Martínez   +6 more
doaj   +1 more source

Comparative Satellitomics in Arowanas (Telostei, Osteoglossiformes) Sheds Light on the Evolution of Ancient Satellite DNAs

open access: yesIntegrative Zoology, EarlyView.
This work focused on arowana fishes (Teleostei, Osteoglossiformes) as a model; their widespread intercontinental distribution and basal phylogenetic position within Teleostei make them a compelling model for evolutionary research, especially in the realm of satDNA molecular evolution. Through the integration of genomic and chromosomal data, we analyzed
Fernando Henrique Santos de Souza   +9 more
wiley   +1 more source

Proteome analysis of human metaphase chromosomes [PDF]

open access: yes
Susumu Uchiyama, Shouhei Kobayashi, Hideaki Takata, Takeshi Ishihara, Naoto Hori, Tsunehito Higashi, Kayoko Hayashihara, Takefumi Sone, Daisuke Higo, Takashi Nirasawa, Toshifumi Takao, Sachihiro Matsunaga, Kiichi Fukui.
Hori, Naoto   +12 more
core   +1 more source

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