MAMMALIAN SEX HORMONES INFLUENCE GERMINATION VELOCITY AND ENZYME ACTIVITIES IN GERMINATING MAIZE SEEDS

ERDAL S., DUMLUPINAR R., CAKMAK T., GENISEL M.

FRESENIUS ENVIRONMENTAL BULLETIN, cilt.19, sa.8, ss.1458-1465, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 19 Sayı: 8
  • Basım Tarihi: 2010
  • Dergi Adı: FRESENIUS ENVIRONMENTAL BULLETIN
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1458-1465
  • Anahtar Kelimeler: amylase, antioxidant enzymes, growth, maize, mammalian sex hormones, WDXRF SPECTROSCOPIC TECHNIQUE, STEROIDAL ESTROGENS, AMYLASE ACTIVITY, PLANT-GROWTH, BETA-ESTRADIOL, IN-VITRO, STRESS, PROGESTERONE, TOLERANCE, CHICKPEA
  • Atatürk Üniversitesi Adresli: Evet

Özet

Effects of mammalian sex hormones (progesterone and beta-estradiol) on growth parameters (percentage of germination, root and shoot length) and activity of selected enzymes (alpha-amylase, superoxide dismutase, peroxidase, catalase and polyphenoloxidase) in germinating maize were studied. Maize seeds were germinated on Petri dishes in the solutions of steroids (concentrations: 10(-4), 10(-6), 10(-9), 10(-12), 10(-15) M). Steroids in all tested concentrations significantly increased root and coleoptyle lengths as well as percentage of germination of maize in comparison to control. The highest germination ratio, root and coleoptyle lengths were recorded at 10(-9) M and 10(-12) M of both progesterone and beta-estradiol. Likewise, progesterone and beta-estradiol in all tested concentrations stimulated the activities of superoxide dismutase (SOD), peroxidase (POX), catalase (CAT), polyphenol oxidase (PPO) and alpha-amylase. The highest activities of these enzymes were determined in endosperm of seeds under the influence of progesterone and beta-estradiol at concentrations with the highest root and coleoptyle lengths as well as percentage of germination.