Natural Hosts of Tomato Yellow Leaf Curl Virus-TYLCV, “Weeds”

Öz

Tomato yellow leaf curl virus (TYLCV) is one of the most crucial worldwide viruses causing severe disease in tomato production. TYLCV is a member of the genus Begomovirus in the family Geminiviridae. A weed is a plant considered undesirable in a particular situation, "a plant in the wrong place", or a plant growing where it is not wanted. In addition to tomato species, many weed species may also host TYLCV. Weeds have an important place in the ecology of cultivated plants and adversely affect yield and quality in agricultural production, as weeds often become the main hosts for plant viruses and insect vector species when the crops are harvested. In studies conducted around the world, it has been stated that many weed species are infected with TYLCV and most of them do not show any symptoms. Many weed species either introduced or native have been known to serve as hosts of TYLCV and play a very crucial role in the spread and epidemiology of TYLCV in tomato fields worldwide. In this review, besides the direct damage of weeds to crop plants, the negative effects of weeds in terms of hosting virus diseases were examined.

Anahtar Kelimeler

• Tomato yellow leaf curl virus
• weed
• natural herbaceous hosts
• reservoir
• alternate host

Domates Sarı Yaprak Kıvırcıklık Virüsünün (Tomato Yellow Leaf Curl Virus-TYLCV) Doğal Konukçuları: Yabancı Otlar

Öz

Domates üretiminde ekonomik olarak önemli kayıplara yol açan hastalık etmenlerinden biri olan domates sarı yaprak kıvırcıklık virüsü (tomato yellow leaf curl virus-TYLCV), Geminiviridae familyasına bağlı Begomovirus cinsinin bir üyesidir. Yabancı ot, belirli bir durumda istenmeyen bir bitki, "yanlış yerde yetişen bir bitki" veya istenmediği yerde büyüyen bitki olarak tanımlanabilir. TYLCV’ ye domates türlerinin yanı sıra çok sayıda yabancı ot türü de konukçuluk yapmaktadır. Kültür bitkilerinin ekolojisinde yabancı otlar önemli bir yere sahiptir ve ürünler hasat edildiğinde, yabancı otlar genellikle bitki virüsleri ve böcek vektör türleri için ana konukçu haline geldiği için tarımsal üretimde verimi ve kaliteyi olumsuz etkilemektedir. Dünya genelinde yapılan araştırmalarda pek çok yabancı ot türünün TYLCV ile enfekte olduğu ve bunların çoğunluğunun hiçbir simptom göstermediği belirtilmiştir. Bilinen veya bilinmeyen birçok yabancı ot türünün TYLCV'nin konukçusu olarak hizmet ettiği ve dünya çapında domates tarlalarında TYLCV'nin yayılması ve epidemiyolojisinde çok önemli bir rol oynadığı bilinmektedir. Bu derlemede, yabancı otların kültür bitkilerine olan doğrudan zararının yanında, virüs hastalıklarına konukçuluk etmesi açısında oluşturduğu olumsuz etkileri incelenmiştir.

Anahtar Kelimeler

• Domates sarı yaprak kıvırcıklığı virüsü
• Yabancı ot
• Doğal konukçu
• alternatif konukçu
• rezervuar

Kaynakça

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