Effects of presowing gamma irradiation on the photosynthetic pigments, sugar content and carbon gain of Cullen corylifolium (L.) Medik.

To determine the effects of gamma radiation on the photosynthetic pigments, sugar content and total carbon gain, seeds of Cullen corylifolium (L.) Medik. were irradiated with variable doses (0, 2.5, 5, 10, 15, and 20 kGy) at the rate of 1.65 kGy h-1 from 60Co gamma source. Cullen corylifolium repres...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Jan,Sumira, Parween,Talat, Hameed,Rehana, O. Siddiqi,Tariq, Mahmooduzzafar
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2013
Materias:	Carbon gain carotenoid chlorophyll a chlorophyll b gamma rays sugar
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392013000400003
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0718-58392013000400003
record_format	dspace
spelling	oai:scielo:S0718-583920130004000032018-10-02Effects of presowing gamma irradiation on the photosynthetic pigments, sugar content and carbon gain of Cullen corylifolium (L.) Medik.Jan,SumiraParween,TalatHameed,RehanaO. Siddiqi,TariqMahmooduzzafar, Carbon gain carotenoid chlorophyll a chlorophyll b gamma rays sugar To determine the effects of gamma radiation on the photosynthetic pigments, sugar content and total carbon gain, seeds of Cullen corylifolium (L.) Medik. were irradiated with variable doses (0, 2.5, 5, 10, 15, and 20 kGy) at the rate of 1.65 kGy h-1 from 60Co gamma source. Cullen corylifolium represents an important Chinese medicine with adequate levels of secondary metabolites, thus we hypothesized that gamma irradiation could modulate primary metabolites which could supplement secondary metabolite levels. The seeds were then transferred to field for biochemical analysis at different developmental stages; pre-flowering, flowering and post-flowering. Gamma dosage at 10 kGy resulted in a significant increase in concentration of chlorophyll a (61.17%), chlorophyll b (93.18%) and total chlorophyll (71.66%), suggesting that low doses of radiation could activate photosynthetic pigment system while at 15 and 20 kGy dose resulted in depletion of such parameters. Sugar and total C analysis of plants irradiated at 10 kGy demonstrated significantly maximum (216.01%) sugar content in leaves at all developmental stages and significantly minimum (46.13%) and (57.81%) in plants raised from seeds irradiated at 15 and 20 kGy respectively. Effective stimulatory dose for C. corylifolium ’11062’ is 10 kGy. In contrast, the carotenoid content of the plants exposed to 15 and 20 kGy was maximum than control. Significance of such stimulation correlated with increasing C mass of the plant concerned is discussed in the light of newer aspects in research.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.73 n.4 20132013-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392013000400003en10.4067/S0718-58392013000400003
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Carbon gain carotenoid chlorophyll a chlorophyll b gamma rays sugar
spellingShingle	Carbon gain carotenoid chlorophyll a chlorophyll b gamma rays sugar Jan,Sumira Parween,Talat Hameed,Rehana O. Siddiqi,Tariq Mahmooduzzafar, Effects of presowing gamma irradiation on the photosynthetic pigments, sugar content and carbon gain of Cullen corylifolium (L.) Medik.
description	To determine the effects of gamma radiation on the photosynthetic pigments, sugar content and total carbon gain, seeds of Cullen corylifolium (L.) Medik. were irradiated with variable doses (0, 2.5, 5, 10, 15, and 20 kGy) at the rate of 1.65 kGy h-1 from 60Co gamma source. Cullen corylifolium represents an important Chinese medicine with adequate levels of secondary metabolites, thus we hypothesized that gamma irradiation could modulate primary metabolites which could supplement secondary metabolite levels. The seeds were then transferred to field for biochemical analysis at different developmental stages; pre-flowering, flowering and post-flowering. Gamma dosage at 10 kGy resulted in a significant increase in concentration of chlorophyll a (61.17%), chlorophyll b (93.18%) and total chlorophyll (71.66%), suggesting that low doses of radiation could activate photosynthetic pigment system while at 15 and 20 kGy dose resulted in depletion of such parameters. Sugar and total C analysis of plants irradiated at 10 kGy demonstrated significantly maximum (216.01%) sugar content in leaves at all developmental stages and significantly minimum (46.13%) and (57.81%) in plants raised from seeds irradiated at 15 and 20 kGy respectively. Effective stimulatory dose for C. corylifolium ’11062’ is 10 kGy. In contrast, the carotenoid content of the plants exposed to 15 and 20 kGy was maximum than control. Significance of such stimulation correlated with increasing C mass of the plant concerned is discussed in the light of newer aspects in research.
author	Jan,Sumira Parween,Talat Hameed,Rehana O. Siddiqi,Tariq Mahmooduzzafar,
author_facet	Jan,Sumira Parween,Talat Hameed,Rehana O. Siddiqi,Tariq Mahmooduzzafar,
author_sort	Jan,Sumira
title	Effects of presowing gamma irradiation on the photosynthetic pigments, sugar content and carbon gain of Cullen corylifolium (L.) Medik.
title_short	Effects of presowing gamma irradiation on the photosynthetic pigments, sugar content and carbon gain of Cullen corylifolium (L.) Medik.
title_full	Effects of presowing gamma irradiation on the photosynthetic pigments, sugar content and carbon gain of Cullen corylifolium (L.) Medik.
title_fullStr	Effects of presowing gamma irradiation on the photosynthetic pigments, sugar content and carbon gain of Cullen corylifolium (L.) Medik.
title_full_unstemmed	Effects of presowing gamma irradiation on the photosynthetic pigments, sugar content and carbon gain of Cullen corylifolium (L.) Medik.
title_sort	effects of presowing gamma irradiation on the photosynthetic pigments, sugar content and carbon gain of cullen corylifolium (l.) medik.
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2013
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392013000400003
work_keys_str_mv	AT jansumira effectsofpresowinggammairradiationonthephotosyntheticpigmentssugarcontentandcarbongainofcullencorylifoliumlmedik AT parweentalat effectsofpresowinggammairradiationonthephotosyntheticpigmentssugarcontentandcarbongainofcullencorylifoliumlmedik AT hameedrehana effectsofpresowinggammairradiationonthephotosyntheticpigmentssugarcontentandcarbongainofcullencorylifoliumlmedik AT osiddiqitariq effectsofpresowinggammairradiationonthephotosyntheticpigmentssugarcontentandcarbongainofcullencorylifoliumlmedik AT mahmooduzzafar effectsofpresowinggammairradiationonthephotosyntheticpigmentssugarcontentandcarbongainofcullencorylifoliumlmedik
_version_	1714205327660941312

Effects of presowing gamma irradiation on the photosynthetic pigments, sugar content and carbon gain of Cullen corylifolium (L.) Medik.

Ejemplares similares