Induced Polyploidy in Legumes

Biswas, Ashis; Bhattacharyya, N. K.

doi:10.1508/cytologia.37.605

Cited by 8 publications

(2 citation statements)

References 22 publications

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“…Removal of heavy metals especially Cu ÷* by cementation has been studied by a number of researchers who used different less noble metals such as Zn, Fe and A1 and different methods to enhance the rate of cementation such as the rotating disc [1,2], the rotating cylinder [3], agitated vessels [4], gas sparging [5], fixed and fluidized beds [6]. In most of the cases the cementation reactions from dilute solutions have been found to follow first-order diffusion controlled kinetics [7].…”

Section: Introductionmentioning

confidence: 99%

Recovery of copper from industrial waste solution by cementation on reciprocating horizontal perforated zinc disc

2004

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Section: Introductionmentioning

confidence: 99%

Recovery of copper from industrial waste solution by cementation on reciprocating horizontal perforated zinc disc

2004

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“…One week old seedlings were used for the study. The cotton swab method adopted was that of Biswas and Bhattacharya (1971) [12]. A cotton swab dipped in 0.03% Sodium azide solution and EMS solution for 5 hours was applied to the apical vegetative bud and Sodium azide solution and EMS were added to the cotton swab frequently by a dropper.…”

Section: Plant Materialsmentioning

confidence: 99%

In Vitro Effect Of Sodium Azide And Ethyl Methanesulphonate On Secondary Metabolite Production In Andrographis paniculata (Burm.F.) Nees

2017

IJAPSA

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Comparative effects of 0.03% of EMS(Ethyl methanesulphonate) and 0.03% SA (Sodium azide) for 5 hours on secondary metabolite production in Andrographis paniculata were conducted in this study. Calli derived from leaf explants inoculated on Murashige and Skoog's (MS) medium supplemented with 2 mg/l NAA, 1 mg/l Kinetin and 50 mg/l Phenylalanine. Treatment of 0.03% SA for 5 hours resulted in 7 fold increase in andrographolide production when compared to the control and the same concentration of EMS for 5 hours treatment. The study also showed that 0.03% SA for 5 hours treated samples showed enhanced production in the fresh weight, dry weight of calli, callus induction frequency and andrographolide production compared to the control.

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Polyploidy and habitat differentiation in Dactylis glomerata L. from Galicia (Spain)

Lumaret¹,

Guillerm²,

Delay³

et al. 1987

Oecologia

164

139

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The microdistribution of diploid and tetraploid plants of Dactylis glomerata L. was examined and related to their immediate environment in several sites in central Galicia, where morphologically indistinguishable individuals of both ploidies grow in sympatry. The two related cytotypes differed in habitat preference. Diploids were mainly confined to the low-density forest-floor habitat in woodlands of mostly ancient origin, whereas tetraploids were widespread in varied habitats but clearly predominant in open areas, particularly in disturbed anthropic sites. The in situ comparison of plant performance showed that where plants of each ploidy were more common they produced more tillers, panicles and seeds. This habitat preference closely reflected differences in life-history characteristics. The tetraploids had an early and short flowering time almost always completed before the aestival drought, whereas the diploids began to flower several weeks later and flowered throughout the drought. Comparisons along artificial gradients of soil water availability and light transmittance indicated that the cytotypes had distinct physiological requirements which probably originated in metabolic and more general genetic differentiation and could be directly attributable to ploidy. Habitat differentiation increases the species' colonizing ability. It also amplifies divergence in reproductive strategy between diploids and tetraploids, which reduces ineffective crossing between cytotypes and thereby permits them to coexist in sympatry. The effect of hybridization at the polyploid level on the differentiation between cytotypes was assessed from the recent introduction of a foreign tetraploid entity into the study area. Hybridization between the two distinct tetraploids was found to increase habitat differentiation between the diploids and the tetraploids, but the major part of this differentiation is probably attributable to ploidy itself.

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Induced Polyploidy in Legumes

Cited by 8 publications

References 22 publications

Recovery of copper from industrial waste solution by cementation on reciprocating horizontal perforated zinc disc

Recovery of copper from industrial waste solution by cementation on reciprocating horizontal perforated zinc disc

In Vitro Effect Of Sodium Azide And Ethyl Methanesulphonate On Secondary Metabolite Production In Andrographis paniculata (Burm.F.) Nees

Polyploidy and habitat differentiation in Dactylis glomerata L. from Galicia (Spain)

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