Modulated UV-B radiation invoking cytomorphological and biochemical aspects of a medicinal plant, Bhringraj (Eclipta alba (L.) Hassk.)
J Environ Biol
;
2020 May; 41(3): 623-630
Artigo
| IMSEAR
| ID: sea-214520
ABSTRACT
Aim:
The current experimental work has been designed to study the effect of UV-B exposure on the seedling growth and meiotic consequences of Eclipta alba (L.) Hassk.Methodology:
The seedlings were exposed to UV-B radiation for different time durations, i.e., 40, 80, 120 min along with control sets. UV-B irradiated seedlings along with respective controls were sown in the field and young floral buds were fixed in Carnoy’s fixative for 24 hrs and preserved in 90% ethanol for meiotic study.Results:
Exposure of UV-B exposure resulted in various chromosomal aberrations like stickiness, laggards, bridges, unorientation, precocious, multivalents etc. Chromosomal stickiness was profound abnormality encountered at shorter duration (40 min) to UV-B exposure. The results revealed that UV-B exposure for shorter duration is quite beneficial to plant as it induces significant cytomorphological and biochemical variations.Interpretation:
Shorter exposure to UV-B radiation induced certain beneficial traits in Eclipta alba. Since, Eclipta alba is a medicinally significant plant, hence, it is essential to improve their quantitative and qualitative traits through induced mutagenesis using UV-B radiation to impel the novel characteristics of plant
Texto completo:
DisponíveL
Índice:
IMSEAR (Sudeste Asiático)
Tipo de estudo:
Pesquisa qualitativa
Revista:
J Environ Biol
Ano de publicação:
2020
Tipo de documento:
Artigo
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