tailieunhanh - The effect of 4-chloroindole-3-acetic acid on some growth parameters in mung bean under cadmium stress

Seedlings of mung bean (Vigna radiata L. Wilczek) cv. T-44 grown on a sand culture were exposed to cadmium (Cd) (100 μM) on day 10 of growth. These seedlings were subsequently sprayed with deionized water (control) or 4- chloroindole-3-acetic acid (4-Cl-IAA) (10-6 M) on day 15 and were sampled 30 days after sowing to assess growth and metabolite content. | Turk J Biol 34 (2010) 9-13 © TÜBİTAK doi: The effect of 4-chloroindole-3-acetic acid on some growth parameters in mung bean under cadmium stress Mohammad MAZID1, Barket ALI2, Shamsul HAYAT1,*, Aqil AHMAD3 1 Plant Physiology & Biochemistry Division, Department of Botany, Aligarh Muslim University, Aligarh 202 002 - INDIA 2Department of Botany, Government College for Women, . Road, Srinagar, Kashmir- INDIA 3Department of Applied Sciences, Higher College of Technology, Al-Khuwair - SULTANATE OF OMAN Received: Abstract: Seedlings of mung bean (Vigna radiata L. Wilczek) cv. T-44 grown on a sand culture were exposed to cadmium (Cd) (100 μM) on day 10 of growth. These seedlings were subsequently sprayed with deionized water (control) or 4chloroindole-3-acetic acid (4-Cl-IAA) (10-6 M) on day 15 and were sampled 30 days after sowing to assess growth and metabolite content. Growth (length, and fresh and dry mass of roots and shoots) and the level of metabolites (chlorophyll, nitrogen, phosphorus, total sugar, and soluble protein) in the leaves significantly decrease in response to Cd stress; however, the 4-Cl-IAA (10-6 M) treatment, both in the absence and presence of Cd, significantly increased the parameters studied. The response generated in the plants grown under stress-free conditions was more prominent, as compared in those exposed to Cd. Key words: Chloroindole, cadmium, chlorophyll, growth, nitrogen, phosphorus, soluble protein, Vigna radiata Kadmiyum stresi altında Mung (Çin Yaban Fasulyesi) Fasulyesi’nin bazı büyüme parametreleri üzerine 4-kloroindol-3-asetik asidin etkileri Özet: Kum kültüründe yetişen T-44 kültürel varyete ait Mung Fasulyesi fideleri, 10 günlük büyüme evresinde kadmiyuma (100 μM) maruz bırakıldı. Sonra bu fideler, değişik metabolitlerin içeriklerini ve büyümeyi değerlendirmek için, ekim -6 işleminden sonra 30 veya 15 gün süren evrelerde 4-kloroindol-3-asetik asit (4-Cl-IAA) (10 M) veya deiyonize .