Carbonic anhydrase, biologically active zinc and carbon fixation in coconut palm

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dc.contributor.authorDwivedi, R.S.
dc.contributor.authorChacko Mathew
dc.contributor.authorMichael, K.J.
dc.contributor.authorAmma, B.S.K.
dc.contributor.authorRay, P.K.
dc.contributor.authorSunny Ninan
dc.date.accessioned2014-05-29T09:56:24Z
dc.date.available2014-05-29T09:56:24Z
dc.date.issued2007-02-08
dc.description.abstractActivity of carbonic anhydrase in the first fully opened leaf (FFL) of erect canopied palms (EC) was higher than that of spherical canopied palms (SC) but the reverse was true in case of middle leaves (ML). The carbon fixation rate of FFL and ML of SC palms did not differ significantly but in EC palms CO2 assimilation of former leaf was higher than latter one. However the C02 assimilation rate in FFL of EC palms did not differ markedly with FFL and ML of SC palms. But C02 fixation in ML of SC palms was significantly higher than that of EC palms. This is correlated with EDTA-zinc (biologically active zinc) but not with total zinc, since in all types of palms the total zinc ranged from 24-28ppm. Also the nut yield in SC palms was found to exceed by 1.2-2.5 times over that in EC palms. Irrespective of canopy structure, the root (wilt) dieseased palms also showed the same trend as that of EC palms. The correlation coefficient values of biologically active zinc, total zinc and carbonic anhydrase was found to be 0.94, 0.66 and 0.78, respectively, with CO2 assimilation rate; and 0.90, 0.56 and 0.76, respectively, with nut yield. This reveals that it is not the total zinc but it is carbonic anhydrase activity and the biologically active zinc which play an important role in regulating CO2 fixation and nut yield of coconut.en_US
dc.identifier.citationIn: Proceedings, PLACROSYM I, RRII, Kottayam, 20-23 Mar.1978. Edited by E. V. Nelliat and others 1979 p-370en_US
dc.identifier.urihttp://hdl.handle.net/123456789/2000
dc.language.isoenen_US
dc.subjectcarbonic anhydrase
dc.subjectzinc fixation
dc.subjectcarbon fixation
dc.subjectcoconut
dc.titleCarbonic anhydrase, biologically active zinc and carbon fixation in coconut palmen_US
dc.typeArticleen_US

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