A kinetic approach on the estimation of iron uptake by Apium nodiflorum plants

Vlyssides, AG; Bouranis, DL

dc.contributor.author	Vlyssides, AG	en
dc.contributor.author	Bouranis, DL	en
dc.date.accessioned	2014-03-01T01:13:31Z
dc.date.available	2014-03-01T01:13:31Z
dc.date.issued	1998	en
dc.identifier.issn	0010-3624	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/12532
dc.subject	Iron	en
dc.subject	Kinetics	en
dc.subject.classification	Agronomy	en
dc.subject.classification	Plant Sciences	en
dc.subject.classification	Chemistry, Analytical	en
dc.subject.classification	Soil Science	en
dc.subject.other	Apium nodiflorum	en
dc.title	A kinetic approach on the estimation of iron uptake by Apium nodiflorum plants	en
heal.type	journalArticle	en
heal.identifier.primary	10.1080/00103629809369967	en
heal.identifier.secondary	http://dx.doi.org/10.1080/00103629809369967	en
heal.language	English	en
heal.publicationDate	1998	en
heal.abstract	A kinetic approach was developed to indicate the inherent capacity of aquatic plants to absorb heavy metals. The concept was based on the hypothesis that heavy metal uptake by plants follows a first-order mathematical model depending on the heavy metal concentration in the biomass of this plant. This method enabled the evaluation of two parameters: (i) the specific metal uptake rate (k) and (ii) the maximum specific content (E-pl,E- infinity) of this metal in the aquatic plant. The specific uptake rate coefficient of the metal depended upon the concentration of the metal in the liquid phase, as can be seen from a Michaelis-Menten-type equation. This equation has two constants: (i) a maximum specific metal uptake rate (k(max)) and (ii) a K-S coefficient. The maximum specific uptake rate coefficient was useful in the evaluation of the ability of different aquatic plants to absorb specific heavy metal, as well as in the evaluation of the selectivity of absorption between two or more metals by the plant. The maximum specific heavy metal content can be used for quantitative evaluation of an aquatic plant's ability to select this heavy metal. The ability of an aquatic plant to clean its aquatic environment from the metal can be evaluated in terms of the K-S-coefficient. An example of this kinetic approach is given by using Apium nodiflorum. Experimental data from an aquatic system of Apium nodiflorum were collected and applied to the proposed kinetic approach for the estimation of parameters E-pl,E- infinity k(max) and K-S of the proposed kinetic model, whereas the adequacy of the model was examined by simulating a real process and comparing the predicted and measured values using chi(2)-test.	en
heal.publisher	MARCEL DEKKER INC	en
heal.journalName	Communications in Soil Science and Plant Analysis	en
dc.identifier.doi	10.1080/00103629809369967	en
dc.identifier.isi	ISI:000073313000005	en
dc.identifier.volume	29	en
dc.identifier.issue	5-6	en
dc.identifier.spage	561	en
dc.identifier.epage	573	en