Effect of Temperature on<i>Monilinia fructicola</i>Conidia Produced on Fresh Stone Fruits

Phillips, Douglas J.

doi:10.1094/pd-69-610

Cited by 21 publications

(20 citation statements)

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“…and Monilinia fructicola. There conidia produced at low temperatures were larger, more numerous, germinated faster and had longer germ-tubes and were more infective than those produced at high temperatures (Houston & Oswald, 1946;Zimmer & McKeen, 1969;Ruppel, 1974;Misaghi et al, 1978;Phillips, 1982Phillips, , 1984Humpherson-Jones & Phelps, 1989;Abbas et al, 1995).…”

Section: Discussionmentioning

confidence: 99%

Effect of temperature of production of Botrytis allii conidia on their pathogenicity to harvested white onion bulbs

Bertolini

Tian

1997

Plant Pathology

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Botrytis allii colonies incubated at low temperatures have been reported to produce larger conidia that germinate faster and give rise to longer germ-tubes than those grown at room temperature. The present study compared the effect of conidia produced at 20ЊC and at 0 and -2ЊC on their pathogenicity to artificially inoculated white onion bulbs, and the effect of conidial concentration (5 × 10 3 and 5 × 10 4 conidia/mL) on disease incidence, lesion area, incubation and latent period during storage at 20, 5 and 0ЊC. At all storage temperatures and periods tested conidia produced at -2ЊC caused a higher disease incidence and larger areas of rot than those produced at higher temperatures. When the conidial production temperature was raised to 20ЊC, the duration of incubation on the bulbs inoculated with 5 × 10 4 conidia/mL was more than doubled during storage at 0ЊC, tripled at 5ЊC, and took 50% longer at 20ЊC. The incubation period was not significantly affected by conidial concentration at 20ЊC, and only slightly at 5 and 0ЊC, but at low temperatures the latent period was longer because of the delay induced in sporulation. These data are consistent with the packers' opinion that cross-infection of spring onions by long-term refrigerated onions in grading lines caused earlier and heavier rotting.

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Section: Discussionmentioning

confidence: 99%

Effect of temperature of production of Botrytis allii conidia on their pathogenicity to harvested white onion bulbs

Bertolini

Tian

1997

Plant Pathology

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“…However, BR phenotyping is often hindered by environmental and seasonal conditions. For instance, low temperatures (Phillips 1984;Tian and Bertolini 1999), humidity duration (Wilcox 1989;Tamm et al 1995;Measham et al 2009), soil nutrient availability (Daane et al 1995;May-De-Mio et al 2008), and orchard hygienic conditions (Hong et al 1997) are factors that significantly influence BR development. Despite these difficulties, cultivardependent BR resistance in peach and apricot has been previously evaluated with diverse approaches (Pascal et al 1994;Bassi et al 1998;Gradziel et al 1998;Walter et al 2004;Wagner Júnior et al 2008), indicating a quantitative inheritance for this trait and the possibility for its genetic improvement in Prunus.…”

Section: Communicated By E Dirlewangermentioning

confidence: 99%

QTL mapping for brown rot (Monilinia fructigena) resistance in an intraspecific peach (Prunus persica L. Batsch) F1 progeny

Pacheco

Bassi

Eduardo

et al. 2014

Tree Genetics & Genomes

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Brown rot (BR) caused by Monilinia spp. leads to significant post-harvest losses in stone fruit production, especially peach. Previous genetic analyses in peach progenies suggested that BR resistance segregates as a quantitative trait. In order to uncover genomic regions associated with this trait and identify molecular markers for assisted selection (MAS) in peach, an F1 progeny from the cross "Contender" (C, resistant)×"Elegant Lady" (EL, susceptible) was chosen for quantitative trait loci (QTL) analysis. Over two phenotyping seasons, skin (SK) and flesh (FL) artificial infections were performed on fruits using a Monilinia fructigena isolate. For each treatment, infection frequency (if) and average rot diameter (rd) were scored. Significant seasonal and intertrait correlations were found. Maturity date (MD) was significantly correlated with disease impact. Sixty-three simple sequence repeats (SSRs) plus 26 single-nucleotide polymorphism (SNP) markers were used to genotype the C×EL population and to construct a linkage map. C×EL map included the eight Prunus linkage groups (LG), spanning 572.92 cM, with an average interval distance of 6.9 cM, covering 78.73 % of the peach genome (V1.0). Multiple QTL mapping analysis including MD trait as covariate uncovered three genomic regions associated with BR resistance in the two phenotyping seasons: one containing QTLs for SK resistance traits near M1a (LG C× EL-2, R 2 =13.1-31.5 %) and EPPISF032 (LG C×EL-4, R 2 = 11-14 %) and the others containing QTLs for FL resistance, near markers SNP_IGA_320761 and SNP_IGA_321601 (LG3, R 2 =3.0-11.0 %). These results suggest that in the C× EL F1 progeny, skin resistance to fungal penetration and flesh resistance to rot spread are distinguishable mechanisms constituting BR resistance trait, associated with different genomic regions. Discovered QTLs and their associated markers could assist selection of new cultivars with enhanced resistance to Monilinia spp. in fruit.

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“…Conidial dimensions are more variable in nature, depending on temperature (longer at 15 than at 25 "C) and host species (Phillips, 1984). On oatmeal agar (Sonoda, 1982), distinct (occasionally black) lines form between colonies of M .…”

Section: Confirmationmentioning

confidence: 99%

“…Les dimensions des conidies sont plus variables dans la nature, selon la temptrature (plus grandes i 15 qu'a 25 "C) et la plante-hGte (Phillips, 1984). Sur milieu de farine d'avoine gelosee (Sonoda, 1982), une ligne marquee (parfois noire) apparait entre les colonies de M .…”

Section: Acknowledgementsunclassified

Monilinia fructicola (Winter) Honey

1988

EPPO Bulletin

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Effect of Temperature onMonilinia fructicolaConidia Produced on Fresh Stone Fruits

Cited by 21 publications

References 0 publications

Effect of temperature of production of Botrytis allii conidia on their pathogenicity to harvested white onion bulbs

Effect of temperature of production of Botrytis allii conidia on their pathogenicity to harvested white onion bulbs

QTL mapping for brown rot (Monilinia fructigena) resistance in an intraspecific peach (Prunus persica L. Batsch) F1 progeny

Monilinia fructicola (Winter) Honey

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