In potato, symptoms of primary infection, infection in the growing season, occurs in the youngest leaves. Leaf margins become necrotic, turning brown and purplish and curl inwards towards the center of the leaf. Secondary infection, which starts from infected potato culls, produces more severe symptoms.

2021年4月13日 · Potato apical leaf curl disease (PALCD) caused by a unique bipartite virus [tomato leaf curl New Delhi virus (ToLCNDV)] has emerged as a global threat. With the inception of ToLCNDV in 1995, it was causing curling/leaf mosaics in tomato, brinjal, chili, okra, papaya, cucurbits, etc., but under the changing climate, overlapping planting and ...

2022年7月16日 · There are a few reasons why your potato plants will have curled leaves – they are: A potato plant infected with one of the many viruses will cause its leaves to curl. Aphids are usually responsible for carrying the virus to the plant but viruses can be transferred via seed also.

Potato leafroll virus can be introduced to a potato field by infected seed tubers or by aphids that have fed on infected potato plants. The most efficient vector of the virus is the green peach aphid.

The sweet potato leaf curl virus is one of more than 20 viruses known to infect the sweet potato. [2] . It is part of a group of sweet potato-infecting Begomoviruses generally known as "sweepoviruses". [3] . Viruses are common among sweet potatoes because their propagation is commonly dependent on stored roots or stems.

Phytopathology Research今日在线发表了中国科学院华南植物园邓书林团队题为“A highly efficient Agrobacterium-mediated infectious system for Sweet potato leaf curl virus and a deltasatellite-based VIGS vector”的文章。...

Potato leafroll virus (PLRV) causes an important disease of potatoes affectine the quantitv and quality of production and may cause a crop to be ineligible for certification. Foliar symptoms of PLRV can be divided into primary and secondary infections.

2024年1月29日 · Potato leaf roll virus (PLRV) is a notorious pathogen that greatly affects potato crops worldwide. This viral infection belongs to the Luteoviridae family and is caused by Polerovirus. Understanding its life cycle, symptoms, preferred conditions, causes of infestation, and control strategies are crucial for growers to minimize losses and secure ...

Potato leafroll virus (PLRV) typically produces a tissue-specific infection restricted to veins and transmitted by insect vectors. This limited virus tropism was attributed to the lack of a virus movement protein [55] and/or to an inability to suppress, avoid or escape from the effect of PTGS outside the veins [32].

2024年5月2日 · Sweet potato leaf curl virus (SPLCV) is a whitefly-transmitted begomovirus infecting sweetpotato and other morning glory (Convolvulaceae) species worldwide. The virus is widespread at the USDA, ARS, U.S. Vegetable Laboratory (USVL), and testing of germplasm maintained in the breeding program indicates nearly 100% infection in storage roots of ...