Polyploidy in <i>Habrobracon</i> Induced by Colchicine Treatment

Induction and identification of polyploidy in basil (Ocimum basilicum L.) medicinal plant by colchicine treatment

Basil (Ocimum basilicum) is one of the important medicinal plant species. In order to produce an autotetraploid population of basil (Ocimum basilicum) by colchicine, different concentrations (0.00, 0.05, 0.10, 0.20, 0.50 and 0.75%) and four treatment methods were examined (seed, the growing point of seedlings at the emergence of cotyledone leaves stage and emergence of true two type leaves stag...

Induction of polyploidy in two diploid wild cotton ( G . armourianum and G . aridum ) species by colchicine treatment

In cotton, wild species generally have in built in resistance of desirable genes for biotic and abiotic stresses and possessing useful fibre qualities such as high length and strength. Among the antimitotic agent, colchicine is widely used to induce doubling of the chromosomes in plant species. Attempt has been made to increase the ploidy level in two wild cotton species viz. (G. armourianum, L...

Retinal atrophy induced by intravitreous colchicine.

Colchicine is known to inhibit axoplasmic transport in ganglion cells. Previous studies have shown considerable, but largely reversible, retinal changes after low dosages of intravitreal colchicine in experimental animals. In the present study, the effects of 1.0 to 100 micrograms of intravitreal colchicine in monkeys were studied by ophthalmoscopy, light microscopy, and electron microscopy. Op...

Abnormal Development in Rana Pipiens Induced by Colchicine Treatment at Late Gastrulation

Effect of Colchicine on in Vitro Polyploidy Induction in African Marigold (tagetes Erecta)

Colchicine was used as chemical mutagen for In vitro induction of polyploids. Nodal segments of In vitro grown marigold plantlets were cultured on MS medium supplemented with four different concentrations of colchcine (0.0%, 0.001%, 0.01% and 0.05%) for 12h, separately. After treatment, nodal segment were shifted to colchicine free MS medium for normal growth. Highest mortality rate (72.74%) an...