Susceptibility of apricot and peach fruit to Monilinia laxa during phenological stages

Mari, Marta; Casalini, Lucia; Baraldi, Elena; Bertolini, P.; Pratella, G. C.

doi:10.1016/s0925-5214(03)00138-8

Cited by 46 publications

(43 citation statements)

References 8 publications

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“…It is known that the development of M. laxa on fruit is dependent on fruit species (Mari et al 2004), maturity stage (Fourie and Holz 2003) or the chemical composition of the fruit (Mari et al 2003). There is no evidence for host specificity of M. laxa (Côté 2004), and in the present study, peach fruit had higher firmness, SSC and SSC/TA ratio than did nectarines (Table 1), so observed difference can be related to genetic factors, maturity and chemical composition of the fruit.…”

Section: In Vivo Testcontrasting

confidence: 46%

Reduction of Postharvest Decay of Peach and Nectarine Caused by Monilinia laxa Using Hot Water Dipping

Jemrić

Ivić

Fruk

et al. 2010

Food Bioprocess Technol

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The effect of hot water dipping (HWD) at 40, 44 and 48°C for 6 and 12 min on germination of conidia of brown rot fungus (Monilinia laxa) in vitro and the effect of HWD at 48°C for 6 and 12 min on the fruit quality and development of M. laxa on peach cv. "Roig" and nectarine cv. "Venus" after artificial inoculation in cold storage were studied. Temperature and duration of treatment significantly affected germination of conidia. After HWD at 48°C for 12 min, the lowest germination of conidia (9%) was recorded, which was more than 10 times lower than control (93%). After 3 days from inoculation, there were 80% of inoculated spots with visual symptoms of decay caused by M. laxa on control peaches and 40% of such spots on control nectarines. Successful infections were recorded on only 5% of inoculated spots of nectarine and 10% of inoculated spots of peach after HWD at 48°C for 12 min. HWD at 48°C for 12 min significantly decreased titratable acidity and increased soluble solids concentration/titratable acidity ratio in nectarines. No visual symptoms of heat damage were found on fruits as a consequence of any of the studied treatments. The results show that it is possible to control postharvest brown rot (M. laxa) on peach using HWD at 48°C for 12 min and on nectarine using HWD at 48°C for 6 min without a significant loss of fruit quality.

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Section: In Vivo Testcontrasting

confidence: 46%

Reduction of Postharvest Decay of Peach and Nectarine Caused by Monilinia laxa Using Hot Water Dipping

Jemrić

Ivić

Fruk

et al. 2010

Food Bioprocess Technol

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“…In contrast to the preharvest period, fungicides are not routinely applied between shuck fall and pit hardening, therefore increasing the probability of latent infection establishment in immature fruit. Similar results have also been reported in other stonefruits elsewhere, including prunes (Luo & Michailides 2001) and peaches (Mari et al 2003). The relationship between early season latent infection and brown rot at harvest is complex and not well understood, as not all immature green fruit with latent infections develop brown rot symptoms at harvest (Wade & Cruickshank 1992).…”

Section: Results and Discussion Fruit Susceptibility Studiessupporting

confidence: 84%

Multiple strategies for effective pathogen control

Spiers¹,

Elmer²,

Wood³

et al. 2005

NZPP

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Market tolerance of fungicide residues on fruit is declining and alternative disease control strategies are required An integrated management system to reduce and ultimately replace fungicides with acceptable alternatives is being developed The components include improved knowledge of pathogen epidemiology thereby optimising the timing of fungicides manipulation of tree nutrition to enhance fruit disease resistance biological control inoculum removal strategies to reduce disease risk and postharvest treatment for improved storage life The integration of these disease management tools provides the basis for consistent and more effective disease control This paper describes research with Monilinia fructicola the cause of brown rot in summerfruit to highlight the benefits of this multifaceted approach Green immature fruit (prepit hardening) were susceptible to infection highlighting the need for fruit protection at this stage Foliar calcium biological control inoculum removal and postharvest treatment each significantly reduced brown rot incidence but field validation of a combined approach is still required

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“…Ripening is the sum of multiple biochemical and physiological changes that occur at the final stage of fruit development (Giovannoni 2001). BR resistance decreases in stone fruit between pit hardening and physiological maturity (Biggs and Northover 1988;Mari et al 2003). This change has been suggested to be due to a concomitant drop in the fruit phenolic content Bostock 2006, 2007;Villarino et al 2011).…”

Section: Maturity Date As Covariate In Mqm Analysesmentioning

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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Susceptibility of apricot and peach fruit to Monilinia laxa during phenological stages

Cited by 46 publications

References 8 publications

Reduction of Postharvest Decay of Peach and Nectarine Caused by Monilinia laxa Using Hot Water Dipping

Reduction of Postharvest Decay of Peach and Nectarine Caused by Monilinia laxa Using Hot Water Dipping

Multiple strategies for effective pathogen control

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

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