- RK Mehra, DR Winge. Cu(I) binding to the Schizosaccharomyces pombe -glutamyltransferase peptides vary-
ing in chain lengths. Arch Biochem Biophys 265:381–389, 1988. - RK Mehra, VR Kodati, R Abdullah. Chain length–dependent Pb(II)-coordination in phytochelatins. Biochem
Biophys Res Commun 215:730–736, 1995. - RK Mehra, K Tran, GW Scott, P Mulchandani, SS Saini. Ag(I)-binding to phytochelatins. J Inorg Biochem
61:125–142, 1996. - GJ Wagner. Accumulation of cadmium in crop plants and its consequences to human health. Adv Agron
51:173–212, 1993. - S Kannan. An in vitro determination of the transport of^59 Fe and^54 Mn to different leaves of young corn
seedlings. Z Pflanzenphysiol 83:375–378, 1977. - F Raguzzi, E Lesuisse, RR Crichton. Iron storage in Saccharomyces cerevisae. FEBS Lett 231:253–258, 1988.
- A Brune, W Urbach, KJ Dietz. Compartmentation and transport of zinc in barley primary leaves as basic mech-
anism involved in zinc tolerance. Plant Cell Environ 17:153–162, 1994. - A Brookes, JC Collins, DA Thurman. The mechanism of zinc tolerance in grasses. J Plant Nutr 3:695–705,
- W Mathys. The role of malate, oxalate, and mustard oil glucosides in the evolution of zinc-resistance in herbage
plants. Physiol Plant 40:130–136, 1977. - RFM Van Steveninck, ME Van Steveninck, AJ Wells, DR Fernando. Zinc tolerance and the binding of zinc as
zinc phytate in Lemna minor. X-ray microanalytical evidence. J Plant Physiol 137:140–146, 1990. - JT Wu, SJ Chang, TL Chou. Intracellular proline accumulation in some algae exposed to copper and cadmium.
Bot Bull Acad Sin 36:89–93, 1995. - R Bassi, SS Sharma. Changes in proline content accompanying the uptake of zinc and copper in Lemna minor.
Ann Bot 72:151–154, 1993. - R Bassi, SS Sharma. Proline accumulation in wheat seedlings exposed to zinc and copper. Phytochemistry
33:1339–1342, 1993. - G Costa, JL Morel. Water relations, gas exchange and amino acid content in Cd-treated lettuce. Plant Physiol
Biochem 32:561–570, 1994. - Y Jolivet, J Hamelin, F Larher. Osmoregulation in halophytic higher plants: the protective effect of glycine be-
taine and other related solutes against the oxalate destabilization of membranes in beet root-cells. Z Pflanzen-
physiol 109:171–180, 1982. - ME Farago, WA Mullen. Plants which accumulate metals. IV. A possible copper-proline complex from the
roots of Armeria maritima. Inorg Chim Acta 32:L93–L94, 1979. - H Schat, SS Sharma, R Vooijs. Heavy metal–induced accumulation of free proline in a metal tolerant and a
nontolerant ecotype of Silene vulgaris. Physiol Plant 101:477–482, 1997. - ME Farago. Metal tolerant plants. Coord Chem Rev 36:155–182, 1981.
- S Misra, L Gedamu. Heavy metal tolerant Brassica napusL. and Nicotiana tabacumL. plants. Theor Appl
Genet 78:161–168, 1989. - L Ren, D Shi, J Dai, B Ru. Expression of the mouse metallothionein-I gene conferring cadmium resistance in
a transgenic cyanobacterium. FEMS Microbiol Lett 158:127–132, 1998. - M Barinaga. Making plants aluminum tolerant. Science 276:1497, 1997.
- JM De la Fuente, V Ramirez-Rodriguez, JL Cabrera-Ponce, J Herra-Estrella. Aluminum tolerance in transgenic
plants by alteration of citrate synthesis. Science 276:1566–1568, 1997. - MD Moore, S Kaplan. Identification of intrinsic high-level resistance to rare-earth-oxides and oxyanions in
members of the class Proteobacteria. Characterization of tellurite, selenite, and rhodium sequioxide in
Rhodobacter sphaeroides. J Bacteriol 74:1505–1514, 1992. - AO Summers. Organization, expression, and evolution of genes for mercury resistance. Annu Rev Microbiol
40:607–634, 1986. - B Fox, CT Walsh. Mercuric-reductase. Purification and characterization of a transposon-encoded flavoprotein
containing an oxidation-reduction-active disulfide. J Biol Chem 257:2498–2503, 1982. - CL Rugh, HD Wilde, NM Stack, DM Thompson, AO Summers, RB Meagher. Mercuric ion reduction and re-
sistance in transgenic Arabidopsis thalianaplants expressing a modified bacterial merAgene. Proc Natl Acad
Sci U S A 93:3182–3187, 1996. - L Herrera-Estrella. Transgenic plants for tropical regions: some considerations about their development and
their transfer to the small farmer. Proc Natl Acad Sci U S A 96:5978–5981, 1999.
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