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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Norte / UEP-Parnaíba. |
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Data corrente: |
08/10/1996 |
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Data da última atualização: |
08/10/1996 |
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Autoria: |
CRUICKSHANK, R. H. |
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Afiliação: |
University of Tasmania. |
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Título: |
The influences of epicutilar Wax disruption and Cutinase resistance onpenetration of tomatoes by Colletotrichum gloeosporioides. |
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Ano de publicação: |
1995 |
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Fonte/Imprenta: |
Journal of Phytopatology, v.143, p.519-524, 1995. |
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Idioma: |
Inglês |
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Conteúdo: |
Conidia of Colletotrichum gloeosporioides germinated on green and ripetomato fruit with intact epicuticular wax, and formed penetration pegsbelow melanized appressoria. If the delicate layer of epicuticular waxwas disrupted by abrasion or removed by solvents before inoculation, apparent increased diffusion of fruit substances into the inoculum stimulated fungal growth, hyphal anastomosis and the production of penetration pegs from hyaline appressoria. This was followed by cuticule erosion centred on the penetration pegs in green fruit allowing secondary growth of infection hyphae. Due to the development of cutinase resistance when the cuticle became yellow at ripening, no cuticle erosion occurred at penetration on ripe fruit. Since cuticle erosion followedpenetration of the cutinase-susceptible cuticle and since penetration peg formation was not hindered by the cutinase resistante cuticle, theprocess of primary penetration is regarded as mechanical., |
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Palavras-Chave: |
Disease; Resistance; Tomato. |
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Thesagro: |
Colletotrichum Gloeosporioides; Doença; Resistência; Tomate. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01567naa a2200205 a 4500
001 1078132
005 1996-10-08
008 1995 bl --- 0-- u #d
100 1 $aCRUICKSHANK, R. H.
245 $aThe influences of epicutilar Wax disruption and Cutinase resistance onpenetration of tomatoes by Colletotrichum gloeosporioides.
260 $c1995
520 $aConidia of Colletotrichum gloeosporioides germinated on green and ripetomato fruit with intact epicuticular wax, and formed penetration pegsbelow melanized appressoria. If the delicate layer of epicuticular waxwas disrupted by abrasion or removed by solvents before inoculation, apparent increased diffusion of fruit substances into the inoculum stimulated fungal growth, hyphal anastomosis and the production of penetration pegs from hyaline appressoria. This was followed by cuticule erosion centred on the penetration pegs in green fruit allowing secondary growth of infection hyphae. Due to the development of cutinase resistance when the cuticle became yellow at ripening, no cuticle erosion occurred at penetration on ripe fruit. Since cuticle erosion followedpenetration of the cutinase-susceptible cuticle and since penetration peg formation was not hindered by the cutinase resistante cuticle, theprocess of primary penetration is regarded as mechanical.,
650 $aColletotrichum Gloeosporioides
650 $aDoença
650 $aResistência
650 $aTomate
653 $aDisease
653 $aResistance
653 $aTomato
773 $tJournal of Phytopatology$gv.143, p.519-524, 1995.
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Registro original: |
Embrapa Meio Norte / UEP-Parnaíba (CPAMN-UEPP) |
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