<i>Botryosphaeria</i>Diseases of Apple and Peach in the Southeastern Unites Stated

Brown, Elizabeth; Britton, Kerry O.

doi:10.1094/pd-70-480

Cited by 78 publications

(36 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…above, the etiology of the (Brown and Britton, 1986;Jones, 1990). Jacobs and Rehner (1998) examined some morphological characters and the nucleotide sequences of nuclear ribosomal DNA ITS (rDNA ITS) regions of anamorphs of the genus Botryosphaeria and found that those identified as Fusicoccurn aesculi Corda, an anamorph of B. dothidea, consisted of two ITS groups.…”

Section: As Describedmentioning

confidence: 99%

Botryosphaeria spp. isolated from apple and several deciduous fruit trees are divided into three groups based on the production of warts on twigs, size of conidia, and nucleotide sequences of nuclear ribosomal DNA ITS regions

Ogata¹,

Shimmen

Harada

2000

Mycoscience

View full text Add to dashboard Cite

We examined the phytopathological and biological characters of Botryosphaeria spp. isolated from apples and other deciduous fruit trees, and determined the nucleotide sequences of their rDNA ITS regions. The Botryosphaeria isolates from deciduous fruit trees can be divided into three groups based on their production of warts on twigs, size of the conidia, and nucleotide sequences of rDNA ITS 1, ITS 2 and 5.8S rDNA. Isolates of Botryosphaeria in ITS group A produced conidia of intermediate size and showed warts on infected twigs prior to the development of ring rot on fruit. This group was common on deciduous fruit trees in Japan as a causal agent of ring rot and wart bark diseases of apples and pears; and it appears similar to the B. dothidea from the US that was isolated from apple exhibiting white rot. The ITS group B Botryosphaeria produced small conidia and induced shoot blight without wart development prior to the development of ring rot on fruit. This group was localized on pear, persimmon, and kiwi fruit in restricted areas of Japan.The ITS group C Botryosphaeria consisted of B. obtusa, the causal agent of apple black rot in the US, which produced large dark brown conidia.

show abstract

Section: As Describedmentioning

confidence: 99%

Botryosphaeria spp. isolated from apple and several deciduous fruit trees are divided into three groups based on the production of warts on twigs, size of conidia, and nucleotide sequences of nuclear ribosomal DNA ITS regions

Ogata¹,

Shimmen

Harada

2000

Mycoscience

View full text Add to dashboard Cite

show abstract

“…et de Not. infects both branches and fruit of apple causing bot canker and ring rot, respectively (Brown and Britton 1986;Guo et al 2009). B. dothidea fruit infection occurs worldwide and currently is one of the most serious threats to the apple industry in East Asia (Kim et al 2005;Tang et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Role of lenticels and microcracks on susceptibility of apple fruit to Botryosphaeria dothidea

et al. 2015

View full text Add to dashboard Cite

Apple ring rot, caused by Botryosphaeria dothidea, is one of the most serious diseases affecting apple industry in East Asia. To study the correlation between fruit natural exocarp structures and susceptibility to B. dothidea, lesion length of Malus domestica cultivars and Malus germplasm accessions was measured 14 days after in vitro inoculation with B. dothidea mycelia at different developmental stages. Area per fruit surface (APFS) of lenticels and microcracks and thickness of cuticular wax were observed. Lesion length, lenticel APFS and cuticular wax thickness varied significantly among the 11 cultivars studied. A positive correlation between lesion length and lenticel APFS and a negative correlation between lesion length and cuticular wax thickness were detected among cultivars and during fruit development. In addition, similar correlations were validated in nine Malus germplasm accessions. Numerous microcracks were observed on surfaces of Golden Delicious and Golden Spur fruit, accounting for 90 % of the natural openings. The hyphae of B. dothidea penetrated into exocarp through both lenticels and microcracks. Fruit bagging with double-layered paper bags and exogenous GA 4+7 reduced lenticel APFS, thickened cuticular wax and elevated resistance to disease. Natural openings on fruit exocarp are an important factor affecting susceptibility of apple to B. dothidea.

show abstract

“…Although infection commonly occurs via pruning wounds and damaged tissue (Brown and Britton 1986) these pathogens also can infect directly through lenticels (Weaver 1979) and dormant buds (Britton and Hendrix 1989) and frequently occur as endophytes in symptomless tissue (Smith et al 1996), which under stress the onset of disease is stimulated (Pusey 1989). Species of this complex represent important pathogens of fruit trees and are associated with fruit rot, leaf spot, cankers, branch dieback and even tree death (Brown andBritton 1986, Pusey et al 1995).…”

Section: Introductionmentioning

confidence: 99%

Botryosphaeriaceae as potential pathogens of Prunus species in South Africa, with descriptions of Diplodia africana and Lasiodiplodia plurivora sp. nov.

2007

View full text Add to dashboard Cite

Botryosphaeriaceae are common dieback and canker pathogens of woody host plants, including stone fruit trees. In the present study the diversity of members of the Botryosphaeriaceae isolated from symptomatic wood of Prunus species (plum, peach, nectarine and apricot) was determined in stone fruitgrowing areas in South Africa. Morphological and cultural characteristics as well as DNA sequence data (5.8S rDNA, ITS-1, ITS-2 and EF-1a) were used to identify known members and describe novel members of Botryosphaeriaceae. From the total number of wood samples collected (258) 67 isolates of Botryosphaeriaceae were obtained, from which eight species were identified. All species were associated with wood necrosis. Diplodia seriata (5 ''Botryosphaeria'' obtusa) was dominant, and present on all four Prunus species sampled, followed by Neofusicoccum vitifusiforme and N. australe. First reports from Prunus spp. include N. vitifusiforme, Dothiorella viticola and Diplodia pinea. This is also the first report of D. mutila from South Africa. Two species are newly described, namely Lasiodiplodia plurivora sp. nov. from P. salicina and Diplodia africana sp. nov. from P. persica. All species, except Dothiorella viticola, caused lesions on green nectarine and/or plum shoots in a detached shoot pathogenicity assay.

show abstract

BotryosphaeriaDiseases of Apple and Peach in the Southeastern Unites Stated

Cited by 78 publications

References 0 publications

Botryosphaeria spp. isolated from apple and several deciduous fruit trees are divided into three groups based on the production of warts on twigs, size of conidia, and nucleotide sequences of nuclear ribosomal DNA ITS regions

Botryosphaeria spp. isolated from apple and several deciduous fruit trees are divided into three groups based on the production of warts on twigs, size of conidia, and nucleotide sequences of nuclear ribosomal DNA ITS regions

Role of lenticels and microcracks on susceptibility of apple fruit to Botryosphaeria dothidea

Botryosphaeriaceae as potential pathogens of Prunus species in South Africa, with descriptions of Diplodia africana and Lasiodiplodia plurivora sp. nov.

Contact Info

Product

Resources

About