Results 71 to 80 of about 73,569 (303)

Controlled biotechnological production of polyhydroxyalkanoates [PDF]

open access: yes, 2012
Předložená diplomová práce se zabývá produkcí polyhydroxyalkanoátů (PHA) bakterií Cupriavidus necator H16. Cílem práce byla příprava, selekce a charakterizace mutantních kmenů schopných vyšší produkce PHA.
Šnajdar, Ondřej
core  

A WHO 2021‐based comprehensive scheme outlining sperm parameters’ associations with IVF outcomes in PGT‐A cycles

open access: yesAndrology, EarlyView.
Abstract Objective To examine the association between semen parameters, assessed according to World Health Organization (WHO)‐2021 criteria, and paternal body mass index (BMI) and age, with embryological and clinical outcomes in ICSI cycles involving preimplantation genetic testing for aneuploidy (PGT‐A).
Rossella Mazzilli   +16 more
wiley   +1 more source

Antimutagenic effect of ellagic acid and its effect on the immune response in mice

open access: yesCzech Journal of Food Sciences, 2002
Using the Ames bacterial mutagenicity test and an in vivo micronucleus test, we investigated the antigenotoxic effect of ellagic acid on the genotoxicity of three mutagens: amino-methylimidazo-quinoline (IQ), aflatoxin B1 (AFB1), and N-nitroso-N ...
P. Šmerák   +7 more
doaj   +1 more source

Spectrum and Density of Gamma and X-ray Induced Mutations in a Non-Model Rice Cultivar

open access: yesPlants, 2022
Physical mutagens are a powerful tool used for genetic research and breeding for over eight decades. Yet, when compared to chemical mutagens, data sets on the effect of different mutagens and dosages on the spectrum and density of induced mutations ...
Joanna Jankowicz-Cieslak   +7 more
doaj   +1 more source

Pig-a mutation: kinetics in rat erythrocytes following exposure to five prototypical mutagens.

open access: yesToxicological Sciences, 2010
An in vivo mutation assay has been developed based on flow cytometric enumeration of glycosylphosphatidylinositol (GPI) anchor-deficient rat erythrocytes.
S. Phonethepswath   +11 more
semanticscholar   +1 more source

Seed viability, germination and seedling growth of canola ( Brassica napus L.) as influenced by chemical mutagens

open access: yes, 2011
Mutation induction is considered as an effective way to enrich plant genetic variation, particularly for traits with a very low level of genetic variation. The objectives of this study were to evaluate the effect of different dosages of chemical mutagens
P. Nathan   +4 more
semanticscholar   +2 more sources

Redressing the Silent Interim: Precautionary Action & Short Term Tests in Toxicological Risk Assessment [PDF]

open access: yes, 2001
The author recommends that a stronger emphasis be placed on creating and implementing short-term tests that use iterative, conservative-based, tiered procedures in conjunction with a precautionary attitude during the interim phase of toxicological risk ...
Riley, Timothy
core   +1 more source

Transcription‐coupled repair: tangled up in convoluted repair

open access: yesThe FEBS Journal, EarlyView.
In this review, we discuss recent findings derived from diverse genomic, biochemical and structural, imaging, and functional studies (B–E) that culminated in deep mechanistic insight (A) into the vital cellular process of transcription‐coupled nucleotide excision repair (TC‐NER).
Diana A. Llerena Schiffmacher   +3 more
wiley   +1 more source

Induction of genetic variability in oat [PDF]

open access: yesCrop Breeding and Applied Biotechnology, 2007
Genetic variability in plants can be maximized through techniques of induction to make selection of genotypeswith improved adaptation to cultivation conditions possible.
Jefferson Luis Meirelles Coimbra   +3 more
doaj  

Antimutagenic effect of curcumin and its effect on the immune response in mice

open access: yesCzech Journal of Food Sciences, 2006
A wide array of antioxidative and anti-inflammatory substances derived from edible plants have been reported to possess chemopreventive and chemoprotective activities.
Petr Šmerák   +7 more
doaj   +1 more source

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