TY  - BOOK
AU  - Tarek Gomaa Abdel-Gaied Abdou, 
AU  - Maurice Sabry Mikhail
AU  - Maryan Makram Youssef
AU  - Hamdy Ibrahim Seif El-Nasr
AU  - Hassan Abd-EL-Khair Hassan
TI  - New bacterial blight of strawberry in Egypt : : the causal organism and its control 
U1  - 632.05 
PY  - 2025///
KW  - Plant diseases
KW  - أمراض النبات
KW  - Pantoea ananatis
KW  - Leaf blight
KW  - Strawberry
KW  - Egypt
KW  - DNA sequencing
KW  - Control
KW  - bio-control agents
KW  - Essential oils
KW  - Plant extracts
KW  - Field application and fruits  quality
KW  - بانتويا اناناتس
KW  - مرض لفحة الأوراق
N1  - Thesis (Ph.D)-Cairo University, 2025; Bibliography: pages 146-181; Issues also as CD
N2  - This study aimed to isolate and identify the microbes associated with the 
strawberry leaf blight disease symptoms. Samples of infected strawberry leaves  
were collected from three governorates: Ismailia, Beheira and Kalubia. The 
isolation process was carried out from naturally infected samples according to 
standard bacteriological methods. Twelve bacterial isolates were obtained as 
follows: four isolates from each governorate. The isolate IPa2 from Ismailia and 
the isolate BPa6 from Beheira were the most aggressive isolates causing the 
disease symptoms on healthy strawberry leaves. Therefore, according to the 
cultural, physiological, biochemical characteristics the isolates IPa2 and BPa6 
were selected to identify using 16S rRNA sequencing the two selected isolates 
were identified as Pantoea ananatis with similatriy level of 97.05% with 
accession number (MH_127816.1) for  IPa2,  as well as was the isolate BPa6 
with similatriy of 97.05% with accession number (NR_026045.1). The 16S 
rDNA sequencing were depositied in the Gen bank nucleotide data bases under 
accession number (MH_127816.1) &(NR_026045.1), respectively. In vitro 
experiments, three bacterial culture filtrates of B. subtilis and Ps. fluorescens  ; 
three essential oils; seven plant extracts and some safe chemicals were 
suppressive to the growth of P. ananatis. The highest inhibition zones of 1.637, 
2.158, 1.169,1.694cm were resulted form Ps. fluorescens, thyme, garlic extract 
and salicalic acid, respectively. In field experiments, all the applied treatments, 
either as root dipping or foliar spraying, significantly reduced the strawberry 
leaf blight severity. The bacterial culture filtrates of B. subtilis was the most 
effective treatment that decreased the disease severity to 19.0 and 14.0%. In 
general, foliar spray application of the tested treatments were more effectval 
than root dipping application. The application of all the tested treatments, 
enhanced the estimated plant growth and yield parameters as well as the 
activities of peroxidase, polyphenole oxidase and β-1,3 glucanase enzymes and 
fruits quality parameters compared to the infected control.; هدفت هذه الدراسة إلى عزل وتعريف مسبب مرض لفحة أوراق الفراولة. جمعت العينات المصابة من ثلاث محافظات الإسماعيلية والبحيرة والقليوبية و إجراء عملية العزل وفقاً للطرق البكتريولوجية القياسية. حصلنا على اثنتي عشرة عزلة بكتيرية: أربعه من الإسماعيلية، أربعه من البحيرة، أربعه من القليوبية. كانت العزلتين Pa2 و Pa6  الاقوي من حيث شدة حدوث الأعراض على أوراق الفراولة السليمة. لذلك  تم اختيارهما  للتعريف باستخدام 16 SrRNA  على أنهم  P. ananatis   بنسبة تشابه 97.05٪ برقم دولي (MH_127816.1) للعزلة Pa2  و العزلة Pa6 بنسبة تشابه 97.05٪ برقم دولي  (NR_026045.1). بالمعمل، كان راشح مزارع بكتيريا  B.   subtilis   و Ps.  fluorescens  اعلي تثبيطا ضد بكتيرياananatis  .P لكن المستخلصات النباتية كانت الاقل. بالحقل أدت المعاملات لتقليل الاصابه بالمرض وحسنت النمو الخضري والمحصولي وجودة الثمار و زيادة النشاط الإنزيمي بالنباتات
ER  -