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Survey of infection by Citrus tristeza virus on citrus variety in Tartous governorate Syria

حصر الإصابة بفيروس تدهور الحمضيات على أصناف حمضيات مزروعة في محافظة طرطوس سورية

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 Publication date 2013
  fields Plant Protecion
and research's language is العربية
 Created by Shamra Editor




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A survey of infection by Citrus tristeza virus (CTV) was conducted during a visit to 14 citrus orchards in different regions in Tartous governorate in the Syrian Coast during the spring of 2012. We collected a total of /691/ samples of different varieties. Most of the samples were collected from plants with symptoms similar to symptoms caused by viral diseases (dwarfing, yellowing, mosaic, quick- decline, vein clearing, boat or spoon-shaped leaves), while other samples did not carry such symptoms due to the possible presence of latent infections. The samples were tested by using Tissue Blot immunoassay (TBIA). The Results showed that the rate of infection by CTV was 34.15% in the tested samples and the distribution of CTV in citrus orchards was by various ratios. The highest percentage of infection was detected in AL- Hamidiah (62.50%), whereas the lowest infection percentage detected was in Talin nursery (10%). Common orange Balady was the most infected by Citrus tristeza virus (41.43%). No virus infection was recorded in Mandalina samples.


Artificial intelligence review:
Research summary
يهدف البحث إلى دراسة انتشار فيروس تدهور الحمضيات (التريستيزا) في محافظة طرطوس بسوريا، حيث تم جمع 691 عينة من 14 بستانًا مختلفًا خلال ربيع 2012. تم استخدام اختبار البصمة النسيجية المناعية (TBIA) لفحص العينات، ووجد أن نسبة الإصابة بالفيروس بلغت 34.15%. سجلت أعلى نسبة إصابة في موقع الحميدية (62.50%)، بينما كانت أقل نسبة في مشتل تالين الزراعي (10%). كانت أعلى نسبة إصابة في صنف البرتقال البلدي (43.41%)، ولم تسجل أي إصابة في صنف المندلينا. توصي الدراسة بإعادة المسح الحقلي في أعوام لاحقة واستخدام أمصال خاصة بفيروسات أخرى على الحمضيات.
Critical review
دراسة نقدية: تعتبر هذه الدراسة مهمة جدًا لفهم انتشار فيروس تدهور الحمضيات في سوريا، إلا أن هناك بعض النقاط التي يمكن تحسينها. أولاً، كان من الأفضل توسيع نطاق الدراسة ليشمل مناطق أخرى في سوريا لضمان شمولية النتائج. ثانيًا، لم يتم التطرق بشكل كافٍ إلى تأثير الفيروس على الإنتاجية والجودة الفعلية للثمار، مما يحد من تطبيق النتائج في تحسين الزراعة. أخيرًا، كان من الممكن استخدام تقنيات تحليلية أكثر تطورًا لتحديد أنواع الفيروسات بدقة أكبر.
Questions related to the research
  1. ما هي نسبة الإصابة بفيروس تدهور الحمضيات في محافظة طرطوس؟

    بلغت نسبة الإصابة بفيروس تدهور الحمضيات في محافظة طرطوس 34.15%.

  2. أي موقع سجل أعلى نسبة إصابة بالفيروس؟

    سجل موقع الحميدية أعلى نسبة إصابة بالفيروس بنسبة 62.50%.

  3. ما هو الصنف الأكثر إصابة بفيروس تدهور الحمضيات؟

    كان صنف البرتقال البلدي الأكثر إصابة بفيروس تدهور الحمضيات بنسبة 43.41%.

  4. هل سجلت أي إصابات في صنف المندلينا؟

    لم تسجل أي إصابات في صنف المندلينا.


References used
ABD- GHAFAR, M. F; PRASAD, K. N; WENG, K. K; ISMAIL, A. Flavonoid, hesperidine, total phenolic contents and antioxidant activities from Citrus species. African Journal of Biotechnology, vol. 9, N°. 3, 2010, 326- 330
ABOU KUBAA, R. Characterization and genomic variability of Citrus tristeza virus (CTV) isolates recovered in Apulia and Syria. PhD. Thesis, University of BARI Italy, 2010, 83PP
ABOU KUBAA, R; DJELOUAH, K; ADDANTE, R; JAMAL, M; D'ONGHIA, A. M. Occurrence, distribution, characterization of citrus tristeza virus and its vectors in Syria. Journal of plant pathology, vol. 91, N°. 2, 2009, 303- 309
ABOU KUBAA, R; DJELOUAH, K; D'ONGHIA, A. M; JAMAL, M. First Report from Syria of Citrus tristeza virus in Citrus spp. The American Phytopathological Society, N°. 10, 2008, 1468
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