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Öğe Bacterial Leaf and Peduncle Soft Rot Caused by Pectobacterium Carotovorum on Tulips in Konya, Turkey(PRIEL PUBL, 2006) Boyraz, Nuh; Bastas, K. K.; Maden, S.; Yaşar, A.The etiology of a new soft rot disease of tulips, causing leaf spots, leaf blight, neck and bulb rot in Konya, Turkey, was investigated. This disease occurred in tulip fields grown for seed bulbs of various varieties in 2002. Bacteria were isolated from the lesions on leaf, bud neck and bulbs and the causal bacterium was identified as Pectobacterium carotovorum on the basis of biochemical and physiological tests. Cells were Gram-negative, rod-shaped, fermentative, potato-rot positive. Colonies were capable of growth at 37 degrees C. On nutrient agar the colonies were creamy-white. The isolates were non-fluorescent on King's B medium, positive for acetoin production, gelatin liquefaction, acid-production-from-lactose, and catalase; and negative for gas from glucose, reducing substances from sucrose, and phosphatase activity. Additionally, tests for egg yolk (lecithin), sensitivity to erythromycin, and pigmentation on yeast dextrose carbonate agar were negative; growth on 5% sodium chloride was positive. All the bacterial isolates obtained from the leaf, bud neck and bulbs produced the original symptoms following inoculation to the susceptible tulip variety 'Gander'. The rate of damage caused by this bacterium was evaluated on several tulip varieties under field and storage conditions. Gander was the most susceptible variety in the field whereas 'Salmon Parrot' exhibited the highest rate of bulb rot in storage. Disease severity was lower in 2003 than 2002.Öğe Defense reactions of bean genotypes to bacterial pathogens in controlled conditions(IOP PUBLISHING LTD, 2018) Uysal, B.; Bastas, K. K.This study was focused on the role of antioxidant enzymes and total protein in imparting resistance against common bacterial blight caused by Xanthomonas axonopodis pv. phaseoli (Xap) and halo blight caused by Pseudomonas syringae pv. phaseolicola (Psp) in bean. Activities of Ascorbate peroxidase (APX), Catalase (CAT) and total protein were studied in resistant and susceptible bean genotypes. Five-day-old seedlings were inoculated with a bacterial suspension (10(8) CFU ml(-1)) and harvested at different time intervals (0, 12, 24 and 36 up to 72 h) under controlled growing conditions and assayed for antioxidant enzymes and total protein. Temporal increase of CAT, APX enzymes activities showed maximum activity at 12 h after both pathogens inoculation (hpi) in resistant cultivar, whereas in susceptible it increased at 72 h after both pathogens inoculation for CAT and 12, 24 h for APX enzymes. Maximum total protein activities were observed at 12 h and 24 h respectively after Xap, Psp inoculation (hpi) in resistant and maximum activities were observed at 24 h and 72 h respectively after Xap, Psp inoculation (hpi) in susceptible. Increase of antioxidant enzyme and total protein activities might be an important component in the defense strategy of resistance and susceptible bean genotypes against the bacterial infection. These findings suggest that disease protection is proportional to the amount of enhanced CAT, APX enzyme and total protein activity.Öğe First Report of Bacterial Canker of Kiwifruit Caused by Pseudomonas syringae pv. actinidiae in Turkey(AMER PHYTOPATHOLOGICAL SOC, 2012) Bastas, K. K.; Karakaya, A.[Abstract not Available]Öğe First Report of Bacterial Stalk and Head Rot Disease Caused by Pectobacterium atrosepticum on Sunflower in Turkey(AMER PHYTOPATHOLOGICAL SOC, 2009) Bastas, K. K.; Hekimhan, H.; Maden, S.; Tor, M.[Abstract not Available]Öğe First Report of Erwinia amylovora on Firethorn (Pyracantha coccinea) and Mountainash (Sorbus sp.) in Turkey.(AMER PHYTOPATHOLOGICAL SOC, 2012) Bastas, K. K.[Abstract not Available]Öğe First Report of Fire Blight Caused by Erwinia amylovora on Crabapple (Malus floribunda) in Turkey.(AMER PHYTOPATHOLOGICAL SOC, 2013) Bastas, K. K.; Ozturk, A. Y.[Abstract not Available]Öğe First Report of Fire Blight Caused by Erwinia amylovora on Meadowsweet (Spirea prunifolia) in Turkey.(AMER PHYTOPATHOLOGICAL SOC, 2014) Bastas, K. K.; Sahin, F.[Abstract not Available]Öğe First Report of Fire Blight Caused by Erwinia amylovora on Rosehip (Rosa canina) in Turkey(AMER PHYTOPATHOLOGICAL SOC, 2013) Bastas, K. K.; Sahin, F.; Atasagun, R.[Abstract not Available]Öğe First Report of Fire Blight Disease Caused by Erwinia amylovora on Rockspray (Cotoneaster horizontalis) in Turkey(AMER PHYTOPATHOLOGICAL SOC, 2012) Bastas, K. K.; Sahin, F.[Abstract not Available]Öğe First Report of Fire Blight Disease on Blackberry in Turkey.(AMER PHYTOPATHOLOGICAL SOC, 2012) Bastas, K. K.; Sahin, F.[Abstract not Available]
