UPTAKE, TRANSPORT AND TOLERANCE TO MN AND CU IN SOME SPECIES FROM FLORA OF NW OF IRAN

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HAJIBOLAND R.

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Journal: IRANIAN JOURNAL OF BIOLOGY Year:2007 | Volume:20 | Issue:2 Page(s): 174-190

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Title

UPTAKE, TRANSPORT AND TOLERANCE TO MN AND CU IN SOME SPECIES FROM FLORA OF NW OF IRAN

Author(s)

HAJIBOLAND R. | Issue Writer Certificate

Keywords

MN AND CU ACCUMULATIONQ3

HEAVY METAL TOLERANCEQ3

Abstract

Eight species from Mn and Cu rich sites in Azerbaijan, NW of Iran, were used for physiologic studies in hydroponic culture medium under environmentally controlled conditions. These species were either important elements of flora of Mn and Cu rich soils or have considerably low frequency on these soils compared to ecologically similar sites. Tolerance to toxic concentrations of Mn and Cu, accumulation in shoot and root as well as uptake kinetics were studied. Alyssum strigosum and Salvia sclarea demonstrated a high tolerance to toxic concentrations of Mn, growth of these species even stimulated significantly in response to Mn concentrations as high as 100 mM. In addition of growth stimulation, a high accumulation of Mn was observed in these species implicated involvement of detoxification mechanisms. In contrast, Acillea millefolium and Chicorium intybus were detected as susceptible and includer species which was in accordance with low frequency of these species in the natural habitat. A high susceptibility to Cu was observed in Papaver somniferum and Chicorium intybus which as associated with a high Cu accumulation in shoot and root. Accordingly, these two species were detected as includer and susceptible species, which was also in accordance with previous ecologic results. Salvia sclarea and two species of Astragalus tolerated high Cu concentrations, in Astragalus species it was attributed mainly to low transport into shoot and sequestration of Cu in roots. Copper uptake parameters in two contrasting species Chicorium intybus and Astragalus aharicus demonstrated that Km was similar between two tested species, but Vmax was higher in Chicorium intybus than Astragalus aharicus. In kinetic study, enhancement of Cu transport into shoot during time course and in response to increasing Cu concentrations in Chicorium intybus was also demonstrated.

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APA: Copy

HAJIBOLAND, R.. (2007). UPTAKE, TRANSPORT AND TOLERANCE TO MN AND CU IN SOME SPECIES FROM FLORA OF NW OF IRAN. IRANIAN JOURNAL OF BIOLOGY, 20(2), 174-190. SID. https://sid.ir/paper/21527/en

Vancouver: Copy

HAJIBOLAND R.. UPTAKE, TRANSPORT AND TOLERANCE TO MN AND CU IN SOME SPECIES FROM FLORA OF NW OF IRAN. IRANIAN JOURNAL OF BIOLOGY[Internet]. 2007;20(2):174-190. Available from: https://sid.ir/paper/21527/en

IEEE: Copy

R. HAJIBOLAND, “UPTAKE, TRANSPORT AND TOLERANCE TO MN AND CU IN SOME SPECIES FROM FLORA OF NW OF IRAN,” IRANIAN JOURNAL OF BIOLOGY, vol. 20, no. 2, pp. 174–190, 2007, [Online]. Available: https://sid.ir/paper/21527/en

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