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001-es BibID:	BIBFORM117975
Első szerző:	Elshafia, Ali Hamid Mohammed agrármérnök
Cím:	Occurrence, Spread, and Management Possibilities of Citrus Bacterial Canker (Xanthomonas citri subsp. citri) in Sudan / Elshafia Ali Hamid Mohammed, Abdelhakam Esmaeil Mohamed Ahmed, Azza Siddig Hussien Abbo, Magdoline Mustafa Ahmed Osman, Siddig Mohamed Elhassan
Dátum:	2024
Megjegyzések:	Bacterial citrus canker disease (BCCD), caused by Xanthomonas citri subsp. citri (Xcc) is considered one of the most damaging factors to the citrus industry worldwide. Recently, based on the host range and pathogen interactions, five different pathovars of the BCCD have been extensively investigated, in which pathotype A (the Asiatic form of X. citri subsp. citri) being the most devastative and widespread among almost all citrus varieties and their relative. The disease causative agent (Xcc) induces varying symptoms depending on the citrus species, plant part, age, geographical area, and climate conditions. The symptoms ranging from small and raised yellowish to necrotic lesions containing corky tissues surrounded by watery and clear yellow rings on leaves, stems, and fruits. In a high level of BCCD, severe symptoms may occur such as die-back, defoliation, severe fruit dropping, and blemished, which remarkably reduce fruit production and quality. Based on all published articles about BCCD in Sudan from the first detection in 2003 to date, the current study aimed to highlight the starting point of BCCD in a specific region in eastern Sudan, the path of spread to cover almost all citrus-producing areas in Sudan, Symptomatology, Xcc identity, ecology, and assessing the efficacy of various chemical compounds and plant extracts against Xcc through both in vivo and in vitro examinations to establish an effective strategy to manage this disease
Tárgyszavak:	Agrártudományok Állattenyésztési tudományok előadáskivonat könyvrészlet
Megjelenés:	The 3rd International Electronic Conference on Plant Sciences: Program and Abstract Book / Jayanta Kumar Patra, Mauro Commisso, Antonella Vitti et al. - p. 78
További szerzők:	Ahmed, Abdelhakam Esmaeil Mohamed (1984-) (Food Engineer) Abbo, Azza Siddig Hussien Magdoline Mustafa Ahmed Osman Siddig Mohamed Elhassan
Internet cím:	Szerző által megadott URL Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM114832
Első szerző:	Elshafia, Ali Hamid Mohammed agrármérnök
Cím:	Citrus Canker in Sudan: Etiology and Epidemiology / Elshafia Ali Hamid, Siddig Mohamed Elhassan, Azza Siddig Hussien Abbo
Dátum:	2021
ISSN:	2471-6774
Megjegyzések:	Citrus bacterial canker disease (CBCD) caused by Xanthomonas citri subsp. citri (Xcc), is one of the most destructive diseases to the citrus plantations worldwide, newly invaded, and threatened citriculture in Sudan. Occurrence and spread of CBCD in Sudan have been surveyed in two states, representing the main citrus producing states in Sudan. Field surveys were conducted during January 2015 in commercial citrus orchards and nurseries at the two locations. Symptomatology, host range study, physiological and biochemical characterization of the isolated pathogen were also carried out to obtain important clues on pathogen identification. In addition, the pathogenicity test was performed on detached leaves of several selected citrus varieties such as grapefruit, orange and lime to establish the identity of the presumptive Xanthomonas citri subsp. citri (Xcc). The disease on lime orchards in northern and southern Sawagi (Kassala State) recorded a disease incidence of 66.6% and 18%, respectively. In nurseries, the disease incidence attained 51.7% and 53.6% in northern Sawagi and southern Sawagi, respectively, while in Khartoum State the disease was unexpectedly detected at a considerably high incidence of 45%, but at only one nursery, no disease detected in Khartoum State` s orchards during these surveys. Lime trees displayed typical symptoms of CBCD, but nearby canker-susceptible citrus species, such as grapefruit (C. paradisi) and sweet orange (C. sinensis) were unaffected. Typical symptoms of CBCD were noticed on leaves, twigs, fruits and branches. The pathogenicity tests of the recovered canker isolates induced typical lesions on local lime only, but produced atypical lesions on other citrus varieties. All the biochemical and physiological characteristics obtained from the re-isolations were also indicative of the presence of Xcc. As important perspectives, it appeared that these citrus canker isolates were distinctive and specific on lime. They were very similar to the pathotype and they attained an epidemic level in Kassala State.
Tárgyszavak:	Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	Agricultural Research & Technology. - 25 : 4 (2021), p. 1-7. -
További szerzők:	Elhassan, Siddig Mohamed Abbo, Azza Siddig Hussien
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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