Potential ascospore production and resulting blossom blight by<i>Monilinia fructicola</i>in unsprayed peach trees

Tate, K. G.; Wood, P.N.

doi:10.1080/01140671.2000.9514142

Cited by 8 publications

(4 citation statements)

References 5 publications

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“…Mummy monitoring during winter permits to understand which species of Monilinia will be prevalent in orchard during the following season, permitting to plan an appropriate crop protection. Ascospores produced on the apothecia of infected mummified fruits are an important source of inoculum that causes primary infections or blossom blights in the early spring (Tate and Wood 2000).…”

Section: Plant Diseasementioning

confidence: 99%

Rapid Detection of Monilinia fructicola and Monilinia laxa on Peach and Nectarine using Loop-Mediated Isothermal Amplification

et al. 2019

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Monilinia laxa and M. fructicola are two causal agents of brown rot, one of the most important diseases in stone fruit. Two species cause blight on blossoms and twigs and brown rot on fruit in pre- and postharvest. Both species are distributed worldwide in North and South America, Australia, and Japan. In Europe, M. laxa is endemic, while M. fructicola was introduced in 2001 and it is now widespread in several countries. Currently, both species coexist in European stone fruit orchards. Monilinia spp. overwinter in cankers and mummified fruit. Mummy monitoring during winter permits growers to understand which species of Monilinia will be prevalent in an orchard during the following season, permitting planning of an appropriate crop protection. Traditionally, the identification has been carried out using morphological features and even with polymerase chain reaction (PCR)-based assays that requires time and well-equipped laboratories. In this study, two isothermal-based methods were designed to identify these pathogens in a faster way than using traditional methods. The loop-mediated amplification (LAMP) assays were validated on some isolates of Monilinia spp. coming from the mummy monitoring according to the international European and Mediterranean Plant Protection Organization standard (PM7/98), taking into account specificity, sensitivity, repeatability, and reproducibility. The sensitivity of both assays was checked by monitoring (at different time points) two nectarine varieties artificially inoculated and stored at two different temperatures. The reliability of both LAMP assays against the quantification of the inoculum was compared with previously published quantitative PCR assays. Both LAMP methods were able to detect a low number of cells. These LAMP methods could be a useful tool for monitoring brown rot causal agents in the field and during postharvest.

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Section: Plant Diseasementioning

confidence: 99%

Rapid Detection of Monilinia fructicola and Monilinia laxa on Peach and Nectarine using Loop-Mediated Isothermal Amplification

et al. 2019

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“…In the United States, M. fructicola is the predominate species that causes brown rot in peach while M. laxa and M. fructigena are causative fungi in Europe ( Byrde and Willetts, 1977 ; Lino et al, 2016 ). As an ascomycete, Monilinia can affect the peaches at two growth stages: blossom and twig blight caused by ascospores and conidia in the early spring and pre- and post-harvest fruit decay caused by conidia infection in the late spring and summer ( Zehr, 1982 ; Tate and Wood, 2000 ; Luo et al, 2005 ; Lino et al, 2016 ).…”

Section: Introductionmentioning

confidence: 99%

Genome-Wide Association Study of Brown Rot (Monilinia spp.) Tolerance in Peach

Linge

Gašić

2021

Front. Plant Sci.

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Brown rot, caused by Monilinia spp., is one of the most important diseases on stone fruit worldwide. Severe yield loss can be caused by pre- and post-harvest fruit decay. Although some degree of tolerance has been reported in peach and almond, the genetic resistance in peach cultivars is still lacking. To date, only few genomic regions associated with brown rot response in fruit skin and flesh have been detected in peach. Previous studies suggested brown rot tolerance in peach being a polygenic quantitative trait. More information is needed to uncover the genetics behind brown rot tolerance in peach. To identify the genomic regions in peach associated with this trait, 26 cultivars and progeny from 9 crosses with ‘Bolinha’ sources of tolerance, were phenotyped across two seasons (2015 and 2016) for brown rot disease severity index in wounded and non-wounded fruits and genotyped using a newly developed 9+9K peach SNP array. Genome wide association study using single- and multi-locus methods by GAPIT version 3, mrMLM 4.0, GAPIT and G Model, revealed 14 reliable SNPs significantly associated with brown rot infection responses in peach skin (10) and flesh (4) across whole genome except for chromosome 3. Candidate gene analysis within the haplotype regions of the detected markers identified 25 predicted genes associated with pathogen infection response/resistance. Results presented here facilitate further understanding of genetics behind brown rot tolerance in peach and provide an important foundation for DNA-assisted breeding.

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“…The number of apothecia of M. linhartiana on the soil surface ranged from 5·3 to 28·7 apothecia m −2 , which is greater than the number (4·4 apothecia m −2 ) of M. fructicola apothecia that was found in peach orchards in New Zealand (Tate & Wood, 2000). This higher number of apothecia for M. linhartiana than for M. fructicola could result from the fact that M. linhartiana requires a sexual stage to complete its life cycle (Fig.…”

Section: Discussionmentioning

confidence: 70%

Characterization of monilia disease caused by Monilinia linhartiana on quince in southern Spain

et al. 2011

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This study elucidates the aetiology and epidemiology of monilia disease of quince caused by the fungus Monilinia linhartiana in Spain. Disease incidence and the dynamics of apothecial development and ascospore discharge were quantified and the pathogen was characterized using morphological and molecular methods. The pathogen did not produce conidia or apothecia on agar media but produced conidia on leaves showing symptoms and apothecia on mummified young quince fruit. Monilinia linhartiana was not pathogenic on ripe quince fruit but was readily isolated from developing, mummified fruit (pseudosclerotia). Phylogenetic analysis based on 5AE8S-ITS region sequences placed M. linhartiana in the Disjuntoriae section of Monilinia species infecting rosaceous hosts. Studies during 2004-2008 in four commercial orchards in southern Spain determined two major infection periods for the disease. The first coincided with the unfolding of the first leaves and resulted in leaf blotch and shoot blight. The second coincided with flowering and led to mummification of developing young fruit. Foliar infection was apparently initiated by airborne ascospores produced on pseudosclerotia that overwintered on the soil surface, while flower infection was probably initiated by conidia produced on leaf lesions. Incidence of diseased shoots ranged from 1 to 91% and was correlated with calculated inoculum potential, based on the density and maturity of apothecia formed on pseudosclerotia. This epidemiological study has made it possible to characterize the life cycle of monilia disease on quince in southern Spain, which will help the development of new control strategies.

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Potential ascospore production and resulting blossom blight byMonilinia fructicolain unsprayed peach trees

Cited by 8 publications

References 5 publications

Rapid Detection of Monilinia fructicola and Monilinia laxa on Peach and Nectarine using Loop-Mediated Isothermal Amplification

Rapid Detection of Monilinia fructicola and Monilinia laxa on Peach and Nectarine using Loop-Mediated Isothermal Amplification

Genome-Wide Association Study of Brown Rot (Monilinia spp.) Tolerance in Peach

Characterization of monilia disease caused by Monilinia linhartiana on quince in southern Spain

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