2005
DOI: 10.1111/j.1365-3059.2005.01284.x
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Participation of Xanthomonas axonopodis pv. citri hrp cluster in citrus canker and nonhost plant responses

Abstract: The participation of the Xanthomonas axonopodis pv. citri hypersensitive response and pathogenicity ( hrp ) cluster in interactions with host and nonhost plants was characterized in pathogenicity and avirulence models. The hrp cluster encodes the type III secretion system indispensable for trafficking of proteins to the plant cell. Mutations in operons hrpB and hrpD and the hrpF gene failed to produce canker in citrus plants or hypersensitive response in cotton plants. The interaction of the phytopathogen with… Show more

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Cited by 51 publications
(57 citation statements)
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References 36 publications
(54 reference statements)
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“…Bacterial mixtures were spotted onto Hybond-C membranes, placed on SB agar, and incubated for 48 h at 28°C. The membranes were then washed with 0.9% NaCl, and the bacteria were transferred to selective medium as described previously (24). Xac mutant strain was selected by the vector-encoded antibiotic resistance (kanamycin) and confirmed by PCR hybridization analysis (data not shown).…”
Section: Methodsmentioning
confidence: 99%
“…Bacterial mixtures were spotted onto Hybond-C membranes, placed on SB agar, and incubated for 48 h at 28°C. The membranes were then washed with 0.9% NaCl, and the bacteria were transferred to selective medium as described previously (24). Xac mutant strain was selected by the vector-encoded antibiotic resistance (kanamycin) and confirmed by PCR hybridization analysis (data not shown).…”
Section: Methodsmentioning
confidence: 99%
“…Na quarta fase, a seleção natural dos patógenos para evitar a ETI e priorizar sua sobrevivência no hospedeiro, desencadeia a aquisição de efetores adicionais que conseguem suprimir a ETI. Uma nova seleção natural por parte da planta contra esses adicionais efetores provenientes do patógeno permite o re-desenvolvimento da ETI (Jones e Dangl, 2006 (Dunger et al, 2005). Tem sido relatado que X. axonopodis pv.…”
Section: 2-sistema Imune Da Plantaunclassified
“…Tem sido relatado que X. axonopodis pv. citri induz HR em diferentes plantas não hospedeiras, como o algodão, tabaco e feijão (Swarup et al, 1992;Duan et al, 1999), e tem sido proposto que o gene de patogenicidade bacteriano, pthA, o qual foi o primeiro gene identificado como o responsável dos sintomas do cancro cítrico (Swarup et al, 1991;item 1.4.1.4.1), pode ser também responsável por esta resposta induzida na planta (Dunger et al, 2005 (Huguet et al, 1998;Rossier et al, 2000;Kim et al, 2003).…”
Section: 2-sistema Imune Da Plantaunclassified
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