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Page 1: fileManshardt I received your powerpoint on papaya grafting. I am working with growers such as
Page 2: fileManshardt I received your powerpoint on papaya grafting. I am working with growers such as
Page 3: fileManshardt I received your powerpoint on papaya grafting. I am working with growers such as
Page 4: fileManshardt I received your powerpoint on papaya grafting. I am working with growers such as
Page 5: fileManshardt I received your powerpoint on papaya grafting. I am working with growers such as
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De: Richard M Manshardt [mailto:[email protected]] Enviada em: sábado, 2 de maio de 2009 00:44Para: KiyoshiAssunto: Re: Thanks!

Dear Osvaldo,

Your trip to Hawaii made a big impression. Our papaya people here are now trying the seedling grafting technique that you introduced, and I have requests from extension agents to work with them to train growers to learn the new propagation method. I appreciate very much your willingness to share your experience from Brazil and China with us.With aloha,

Richard Manshardt

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From: Sugano, JariSent: Wed 6/3/2009 2:50 PMTo: [email protected]: Papaya grafting in Hawaii

Dr YamanishiMy name is Jari Sugano and I am an extension agent on Oahu, Hawaii. Through Dr. Richard Manshardt I received your powerpoint on papaya grafting. I am working with growers such as Clyde Fukuyama and Ken Kamiya and we are very excited about the possibility of grafting papayas. We have tried to graft papayas several ways, but I am most interested in your side grafting

approach (with the leaves attached). Is there a special tool or method that you use to make the cut for the side graft? We have been making the cuts too big. I noticed that the side graft does not require the leaves to be cut off or covered. Thank you for sharing this information with us. If we can transfer this technology to our growers, it would be a significant advancement for the industry.

Aloha, jari

Jari S.K. SuganoKaneohe Extension Office45-260 Waikalua Road, Suite 101Kaneohe, HI 96744Phone: (808) 247-0421 extension 107 Fax: (808) 247-1912 Email: [email protected]

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RISCO QUARENTENÁRIO

Erwinia papayae sp.

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Podridão em mamoeiro de etiologia bacteriana-Primeiro relato de podridão em mamoeiro causada por bactérias (Bacillus papaya) foi feito em

1931 na Ilha de Java, Indonésia;

-Em 1978 uma doença bacteriana com sintomatologia semelhante foi assinalada na Venezuela;

-Na década de 1980 a doença foi assinalada em diferentes ilhas do Caribe;

-Em 2003 são observadas severas epidemias da doença na Malásia.

Podridão da coroa em mamoeiro. www.pestnet.org/SummariesofMessages/Crops/Fruitsnuts/Papaya/Bacterialcrownrot,papaya,Tonga.aspx

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O patógenoA análise de isolados de bactérias causadoras de podridão em plantas de mamoeiro

coletados nos anos 1980 e 1990 nas Ilhas do Caribe, revelou Erwinia papayae sp. nov.

como o agente causal.CFBP no. Host plant Geographical origin Year of isolation

2109 Carica papaya Guadeloupe, France2110 Carica papaya Guadeloupe, France2111 Carica papaya Guadeloupe, France2462 Carica papaya Guadeloupe, France 19852464 Carica papaya Guadeloupe, France 19852465 Carica papaya Martinique, France 19855164 Carica papaya cv. Solo Grenada 19945168 Carica papaya cv. Local Saint Lucia 19945174 Carica papaya cv. Local Saint Vincent 19945184 Carica papaya cv. Local Sainte Croix 19955185 Carica papaya cv. Local Guadeloupe, France 19935189T Carica papaya cv. Local Martinique, France 19955288 Carica papaya cv. Local Guadeloupe, France 19885292 Carica papaya cv. Local Guadeloupe, France 19885300 Carica papaya Grenada 19915301 Carica papaya cv. Taı̈nung Dominica 19916528 Carica papaya Grenada 19916529 Carica papaya Grenada 19916530 Carica papaya Grenada 1991

Sintomas de podridão dacoroa em plantas demamoeiro causada por E.papayae. (Foto: N.H. Maktaret al New Disease Reports(2008) 17, 4.

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Table 1. Distinguishable characteristics of E. mallotivora and E. papaya.

Characteristic E. mallotivora (BT-Mardi) E. mallotivora [7] E. papaya [5] Blue  p gment  on  K ing’s  B  ag ar − − + Citrate utilization + + − a

Reducing substances from sucrose + + − D-Mannitol + + − L-Arabinose − − +

a More than 70% of the strains negative.

Figure 3. Phylogenetic tree based on neighbor-joining phylogram.

E.mallotivora (BT-MARDI)

E.mallotivora (AJ233414)

E.papayae (AY131237)

E.psidii (Z96085)

E.persicinus (U80205)

E.pyrifoliae (AJ009930)

E.amylovora (U80195)

E.cypripedii (U80201)

E.tracheiphila (Y13250)

Controvérsias quanto à identidade do patógeno causador da podridão do mamoeiro na Malásia

Int. J. Mol. Sci. 2011, 12, 39-45; doi:10.3390/ijms12010039

International Journal of Molecular Sciences

ISSN 1422-0067 www.mdpi.com/journal/ijms

Article

Erwinia mallotivora sp., a New Pathogen of Papaya (Carica papaya) in Peninsular Malaysia Noriha Mat Amin * , Hamidun Bunawan, Rohaiza Ahmad Redzuan and Indu Bala S. Jaganath

OPEN ACCESS

Papaya dieback symptoms caused by E. mallotivora (A) Leaf spots formed along the main vein of infected leaf (left) compared to a healthy

leaf (negative control: right); (B) Greasy and water-soaked lesions leading to the destruction of

papaya tree (Arrow)

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Sintomas da doença

Áreas encharcadas na base dos pecíolos e da coroa de plantas de mamoeiro infectadas por Erwinia papaya (Fonte:

DOA, Malaysia)

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Sintomas da doença

Lesões encharcadas e necrose na coroa de mamoeiros infectados por Erwinia papayae (Fotos: Laurence Argoud CIRAD).

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Sintomas da doença

Sintomas do tipo “cabeça de lápis” onde se observa o completo apodrecimento da coroa. (Foto: N.H. Maktar et al New DiseaseReports (2008) 17, 4).

Estágio avançado da doença onde pode-se ver o tombamento da coroa (Fonte: DOA, Malaysia).

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Sintomas da doença

Frutos imaturos de mamoeiro infectados por Erwinia papayae onde se observa áreas da polpa com aspecto encharcado (Fotos: Maktar et al New Disease Reports (2008) 17, 4) e DOA, Malaysia)

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Pecíolos e limbo foliar de mamoeiro infectados por Erwinia papayae apresentando encharcamento e posterior necrose dos tecidos (Fotos: DOA, Malaysia)

Sintomas da doença

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Perdas causadas pela doença

As maiores perdas provocadas por essa doença foram observadas na Malásia:-A doença foi inicialmente observada em 2003;-No final de 2006 a doença já havia se disseminado em uma área de 800 ha provocando a destruição de cerca de 1 milhão de plantas;-Foram perdidos aproximadamente 200 milhões de toneladas de frutos (aprox. US$ 58 milhões).

0

10.000

20.000

30.000

40.000

50.000

60.000

2003 2008

Tone

lada

s

AnoExportações de frutos de mamoeiro da Malásia

peninsular nos anos 2003 e 2008. (Confeccionado a partir de Bacterial Dieback of Papaya Trees Senior Research

Officer, Dr. Lily Eng )(Foto: N.H. Maktar et al.)

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Caramujo africano (Achatina fulica)possível disseminador da podridão dacoroa do mamoeiro (Foto:www.ctahr.hawaii.edu/nelsons/papaya/1_snail_on_papaya_fruit.JPG

Disseminação do patógeno

Pus bacteriano pode serdisseminado por chuvaassociada a vento (Foto: L.Vawdrey & R. Fullerton)

Sementes contaminadas podemter introduzido a doença emTonga (Foto: http://dir.indiamart.com/impcat/papaya-seed.html)

-Plantas ou partes de plantas infectadas;

-Não há consenso quanto a participação e importância de animais vetores (insetos e moluscos).

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Sobrevivência do patógeno

Estudos conduzidos nas Filipinas e no

Caribe demonstraram que o patógeno

sobrevive, no máximo, por duas

semanas na ausência da planta

hospedeira.

Em lesões na planta hospedeira a

sobrevivência prolonga-se por tempo

indefinido.Cancros em hastes de mamoeiro podem hospedar o patógeno por tempoindefinido (Foto: Threat Specific Contingency Plan Bacterial Crown RotErwinia papayae - Lynton Vawdrey)

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Distribuição geográfica da doença

-Caribe e América:, Antígua-Barbuda, Barbados, Dominica, Granada, Guadeloupe, São Vicente e Granadinas, Martinica, São Cristóvão e e Nevis, Santa Lúcia, Trinidad e Tobago, Ilhas Virgens Americanas, Ilhas Virgens Britânicas e Venezuela.-Sudeste asiático: Indonésia, Malásia, Filipinas.-No pacífico: Ilhas Marianas, Tonga e Fiji.-África: Nigéria (não confirmado)

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Danos potenciais

-Houve uma acentuada queda da produção de mamão na Malásia em função dessa doença;

-Não há variedades comerciais resistentes a essa doença;

-O controle químico da doença não é eficiente;

-A maior parte dos plantios de mamoeiro no Brasil está localizada em áreas favoráveis à doença;

-O Brasil possui fronteira seca com a Venezuelaonde a bactéria é indene;

-O agente causal da doença não está relacionadocomo praga quarentenária (A1 ou A2) no Brasil.

(Fot

o:Ly

nton

Vaw

drey

)

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THANK YOU FOR YOUR KIND ATTENTION!

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