Ocorrência de ácaro erioflídio em pessegueiros no no estado de São Paulo

Costa, Á. S.; Rigitano, Orlando; Carvalho, Ana Maria; Netto, J. Amaral Gurgel

doi:10.1590/s0006-87051962000100061

Cited by 2 publications

(2 citation statements)

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“…The disease spread towards Benin (previously known as Dahomey), Chad, Cameroon, Congo, and Ivory Coast (Cauquil, 1977 ; Cauquil & Follin, 1983 ; Cauquil & Vaissayre, 1971 ). Later, CBD was introduced in Brazil and Argentina (Corrêa et al, 2005 ; Costa & Carvalho, 1962 ) and Asian countries including India (Mukherjee et al, 2012 ), Thailand (Sharman et al, 2015 ), and Timor‐Leste (Ray et al, 2016 ; Figure 1a ). More recently, CLRDV was reported in China (Feng et al, 2017 ), South Korea (Igori et al, 2022 ), and Uzbekistan (Kumari et al, 2020 ; Figure 1a ).…”

Section: Geographical Distributionmentioning

confidence: 99%

“…Based on the CLRDV ORF0 sequences available in GenBank from 2005 to 2022, BEAST analysis estimated the age (root) of the CLRDV population in the year 1945 during the period 1938–1962 when CLRDV symptoms were first observed and documented in the Central African Republic (Cauquil, 1977 ; Cauquil & Follin, 1983 ; Costa & Carvalho, 1962 ). However, the 95% highest posterior density credible interval spans from 1914 to 1971 (Bryant et al, 2007 ; Figure 4b ).…”

Section: Diversity and Evolution Of Clrdvmentioning

confidence: 99%

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Cotton leafroll dwarf disease: An enigmatic viral disease in cotton

Edula

Bag

Milner

et al. 2023

Molecular Plant Pathology

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Taxonomy: Cotton leafroll dwarf virus (CLRDV) is a member of the genus Polerovirus, family Solemoviridae. Geographical Distribution: CLRDV is present in most cotton‐producing regions worldwide, prominently in North and South America. Physical Properties: The virion is a nonenveloped icosahedron with T = 3 icosahedral lattice symmetry that has a diameter of 26–34 nm and comprises 180 molecules of the capsid protein. The CsCl buoyant density of the virion is 1.39–1.42 g/cm3 and S20w is 115–127S. Genome: CLRDV shares genomic features with other poleroviruses; its genome consists of monopartite, single‐stranded, positive‐sense RNA, is approximately 5.7–5.8 kb in length, and is composed of seven open reading frames (ORFs) with an intergenic region between ORF2 and ORF3a. Transmission: CLRDV is transmitted efficiently by the cotton aphid (Aphis gossypii Glover) in a circulative and nonpropagative manner. Host: CLRDV has a limited host range. Cotton is the primary host, and it has also been detected in different weeds in and around commercial cotton fields in Georgia, USA. Symptoms: Cotton plants infected early in the growth stage exhibit reddening or bronzing of foliage, maroon stems and petioles, and drooping. Plants infected in later growth stages exhibit intense green foliage with leaf rugosity, moderate to severe stunting, shortened internodes, and increased boll shedding/abortion, resulting in poor boll retention. These symptoms are variable and are probably influenced by the time of infection, plant growth stage, varieties, soil health, and geographical location. CLRDV is also often detected in symptomless plants. Control: Vector management with the application of chemical insecticides is ineffective. Some host plant varieties grown in South America are resistant, but all varieties grown in the United States are susceptible. Integrated disease management strategies, including weed management and removal of volunteer stalks, could reduce the abundance of virus inoculum in the field.

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