نتایج جستجو برای: tetraploids
تعداد نتایج: 420 فیلتر نتایج به سال:
The tetraploid plants of Catharanthus roseus (L.) G. Don was obtained by colchicine induction from seeds explants, and the ploidy of the plants was identified by flow cytometry. The optimal treatment is 0.2% colchicine solution treated for 24 hours, and the induction rate reaches up to 30%. Comparing with morphological characteristics and growth habits between tetraploids and the control, we fo...
Candida albicans is the most common fungal pathogen of humans. The recent discovery of sexuality in this organism has led to the demonstration of a mating type locus which is usually heterozygous, although some isolates are homozygous. Tetraploids can be formed between homozygotes of the opposite mating type. However, the role of the mating process and tetraploid formation in virulence has not ...
Abstract Grass nitrogen (N) concentrations of dairy grasslands are higher on peat soil than mineral soils. This can lead to increased N losses air and water from farming systems Our hypothesis was that the use low-N perennial ryegrass ( Lolium perenne L.) genotypes could be a means lower grass concentrations, when grown objective determine whether populations with different shoot tissue recorde...
ABSTRACT This study aimed to evaluate the efficiency of parameters fresh leaf mass and stomatal density in estimation ploidy pre-selection putative banana autotetraploids. Young plants diploid cultivar Ouro (AA), previously subjected vitro polyploidization with antimitotic amiprofos-methyl - APM (0, 10, 20, 30, 40, 60 µM L-1) colchicine (2.5 mM were evaluated for survival, height, number leaves...
Induced polyploidy usually results in larger vegetative and reproductive plant organs. In order to study the effect of chromosome doubling on Thymus vulgaris , three levels colchicine concentration including 0.1, 0.3 0.5% (w/v) were applied for 6, 12 24 hours apical meristem 2- 4-leaf seedlings. Ploidy level was evaluated by flow cytometry microscopic counting. Chemical composition essential oi...
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