[1] Ascencio, C.L., Cedeno-Maldonado, A., 1979. Effects of cadmium on carbonic anhydrase and activities dependent on electron transport of isolated chloroplasts. J. Agric. Univ. Puerto. Rico., 63:195-201.

[2] Barcelò, J., Poschenrieder, C., 1990. Plant water relations as affected by heavy metal stress: a review. J. Plant Nutri., 13:1-37.

[3] Barcelò, J., Poschenrieder, C., 2002. Fast root growth responses, root exudates, and internal detoxication as clues to the mechanisms of aluminium toxicity and resistance: a review. Environ. Exp. Bot., 48:75-92.

[4] Baszynski, T., Wajda, L., Krol, M., Wolinska, D., Krupa, Z., Tuken-Dorf, A., 1980. Photosynthetic activities of cadmium-treated tomato plants. Physiol. Plant, 48:365-370.

[5] Bazzaz, F.A., Carlson, R.W., Rolfe, G.L., 1975. Inhibition of corn and sunflower photosynthesis by lead. Physiol. Plant, 34:326-329.

[6] Chakravarty, B., Srivastava, S., 1992. Toxicity of some heavy metals in vivo and in vitro in Helianthus annuus. Mut. Res., 283:287-294.

[7] Grant, C.A., Buckley, W.T., Bailey, L.D., Selles, F., 1998. Cadmium accumulation in crops. Canadian J. Plant Sci., 78:1-17.

[8] Greger, M., Lindberg, S., 1987. Effects of Cd²⁺ and EDTA on young sugar beets (Beta vulgaris). II. Net uptake and distribution of Mg²⁺, Ca²⁺ and Fe²⁺/Fe³⁺. Physiologia Plantarum, 69:81-86.

[9] Haag-Kerwer, A., Schafer, H.J., Heiss, S., Walter, C., Rausch, T., 1999. Cadmium exposure in Brassica juncea causes a decline in transpiration rate and leaf expansion without effect on photosynthesis. J. Exp. Bot., 50(341):1827-1835.

[10] Kinraide, T.B., 1993. Aluminium enhancement of plant growth in acid rooting cations: a case of reciprocal alleviation of toxicity by two toxic cations. Physiologia Plantarum, 88:619-625.

[11] Lagerwerff, J.V., 1972. Lead, Mercury and Cadmium as Environmental Contaminants. In: Mortvedt, J.J., Giordano, P.M., Lindsay, W.L. (Eds.), Micronutrient in Agriculture. Soil Sci. Society of America, Madison, WI, p.666.

[12] Li, E.H., Miles, C.D., 1975. Effects of cadmium on photoreactions of chloroplasts. Plant Sci. Lett., 5:33-70.

[13] Malik, D., Sheoran, I.S., Singh, R., 1992. Carbon metabolism in leaves of cadmium treated wheat seedlings. Plant Physiol. Biochem., 30(2):223-229.

[14] Moya, J.L., Ros, R., Picazo, I., 1993. Influence of cadmium and nickel on growth, net photosynthesis and carbohydrate distribution in rice plants. Photosynthesis Res., 36:75-80.

[15] Ouariti, O., Gouia, H., Ghorbal, M.H., 1997a. Responses of bean and tomato plants to cadmium: growth, mineral nutrition and nitrate reduction. Plant Physiol. Biochem., 35:347-354.

[16] Ouariti, O., Boussama, N., Zarrouk, M., Cherif, A., Ghorbal, M.H., 1997b. Cadmium- and copper-induced changes in tomato membrane lipids. Phytochem., 45:1343-1350.

[17] Padmaja, K., Prasad, D.D.K., Prasad, A.R.K., 1990. Inhibition of chlorophyll synthesis in Phaseolus vulgaris Seedlings by cadmium acetate. Photosynthetica, 24:399-405.

[18] Prasad, M.N.V., Strzalka, K., 1999. Impact of Heavy Metals on Photosynthesis. In: Prasad, M.N.V., Hagemeyer, J. (Eds.), Heavy Metal Stress in Plants. Springer, Berlin, p.117-138.

[19] Satyakala, G., 1997. Studies on the effect of heavy metal pollution on Pistia stratiotes (water lettuce). Indian J. Environ. Health, 39:1-7.

[20] Sawhney, V., Sheoran, I.S., Singh, R., 1990. Nitrogen fixation, photosynthesis and enzymes of ammonia assimilation and ureide biogenesis in nodules of mungbean (Vigna radiata) grown in presence of cadmium. Indian J. Exp. Biol., 28:883-886.

[21] Sheoran, I.S., Agarwal, N., Singh, R., 1990a. Effect of cadmium and nickel on in vivo carbon dioxide exchange rate of pigeonpea (Cajanus cajan L.). Plant Soil, 129:243-249.

[22] Sheoran, I.S., Singal, H.R., Singh, R., 1990b. Effect of cadmium and nickel on photosynthesis and the enzymes of the photosynthetic carbon reduction cycle in pigeonpea (Cajanus cajan L.). Photosynth. Res., 23:345-351.

[23] Skorzynska, E., Baszynski, T., 1995. Photochemical activities of primary leaves in cadmium stressed Phaseolus coccineus depends on their growth stages. Acta Soc. Bot. Pol., 64:273-279.

[24] Vazquez, M.D., Poschenrieder, C., Barcelò, J., 1989. Pulvinus structure and leaf abscission in cadmium-treated bean plants (Phaseolus vulgaris). Canadian J. Bot., 67:2756-2764.

[25] Watanabe, Y., Zhang, Z.W., Qu, J.B., Xu, G.F., Song, L.H., Wang, J.J., Shimbo, S., Nakatsuka, H., Higashikawa, K., Ikeda, M., 1998. Urban–rural comparison on cadmium exposure among general populations in Shandong Province, China. Sci. Total Environ., 217:1-8.

[26] Weigel, H.J., 1985a. The effect of Cd²⁺ on photosynthetic reactions of mesophyll protoplasts. Physiol. Plant, 63:192-200.

[27] Weigel, H.J., 1985b. Inhibition of photosynthetic reactions of isolated intact chloroplast by cadmium. J. Plant Physiol., 119:179-189.

[28] Weigel, H.J., Jäger, H.J., 1980. Subcellular distribution and chemical forms of cadmium in bean plants. Plant Physiol., 65:480-482.

[29] Williams, C.H., David, D.J., 1973. The effect of superphosphate on the cadmium content of soils and plants. Aust. J. Soil Res., 11:43-56.

[30] Woolhouse, H.W., 1983. Toxicity and tolerance of plants to heavy metals. Encycl. Plant Physiol., 12:246-300.

[31] Wu, F.B., Wu, L.H., Xu, F.H., 1998. Chlorophyll meter to predict nitrogen sidedress requirement for short-season cotton. Field Crops Res., 56:309-314.

[32] Wu, F.B., Zhang, G.P., Dominy, P., 2003. Four barley genotypes respond differently to cadmium: lipid peroxidation and activities of antioxidant capacity. Environ. Exp. Bot., 50:67-78.