Australasian Plant Pathology最新文献_第8页

Sugarcane bacilliform viruses in Ethiopia: genetic diversity and transmission by pink sugarcane mealybug 埃塞俄比亚的甘蔗杆状病毒：遗传多样性和粉红色甘蔗粉蚧的传播

IF 1.4 4区农林科学

Australasian Plant Pathology Pub Date : 2023-10-10 DOI: 10.1007/s13313-023-00950-8

Mereme Abide, Dawit Kidanemariam, Misrak Kebede, Adane Abraham

{"title":"Sugarcane bacilliform viruses in Ethiopia: genetic diversity and transmission by pink sugarcane mealybug","authors":"Mereme Abide, Dawit Kidanemariam, Misrak Kebede, Adane Abraham","doi":"10.1007/s13313-023-00950-8","DOIUrl":"10.1007/s13313-023-00950-8","url":null,"abstract":"<div>Badnaviruses infecting sugarcane, collectively called sugarcane bacilliform viruses (SCBVs), are reported worldwide and are responsible for causing leaf fleck disease in sugarcane. SCBVs are genetically heterogeneous members of the badnavirus species complex. The objective of this study was to evaluate the genetic diversity of sugarcane bacilliform viruses (SCBVs) in four distinct sugarcane growing sites in Ethiopia. Additionally, the study aimed to examine the transmission of SCBV through vectors. A total of 270 sugarcane leaf samples, including both virus-suspected (symptomatic) and asymptomatic leaves, were collected and tested using a PCR assay with SCBV-F and SCBV-R primer pairs. Out of these samples, 67 (24.8%) were found to be SCBV-positive. Phylogenetic analysis and pairwise sequence comparisons based on the partial RT-RNase H coding region showed that the SCBVs in Ethiopia are genetically diverse. The phylogenetic analysis revealed that isolates from the current study formed four clusters together with SCBV-G, L, Q and S isolates reported from different parts of the world. This suggests that the introduction of SCBV to Ethiopia may have occurred in multiple countries. The glasshouse experiments demonstrated the efficient transmission of SCBV from infected to healthy sugarcane plants by pink sugarcane mealybugs (Saccharicoccus sacchari), which are associated with the sugarcane crop in the field. These findings contribute to the current understanding of the genetic diversity of SCBVs in Ethiopia.</div>","PeriodicalId":8598,"journal":{"name":"Australasian Plant Pathology","volume":"52 6","pages":"613 - 624"},"PeriodicalIF":1.4,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71909686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Wheat leaf rust control through biofabricated zinc oxide nanoparticles 生物复合氧化锌纳米粒子防治小麦叶锈病

IF 1.4 4区农林科学

Australasian Plant Pathology Pub Date : 2023-09-27 DOI: 10.1007/s13313-023-00949-1

R. Badar, A. Ahmed, M. Munazir, M. Asghar, F. Bashir

引用次数: 1

First report of tar spot on sorghum in West Lombok, West Nusa Tenggara province, Indonesia 印尼西努沙登加拉省西龙目地区高粱焦油斑的首次报告

IF 1.4 4区农林科学

Australasian Plant Pathology Pub Date : 2023-09-25 DOI: 10.1007/s13313-023-00945-5

Dwi Astuti, Suryo Wiyono, Trikoesoemaningtyas, Satya Nugroho, Sri Hendrastuti Hidayat

引用次数: 0

New alternative hosts of ‘Candidatus Phytoplasma australasia’ strains in the warm climate of Hormozgan province, southern Iran 伊朗南部霍尔莫兹甘省温暖气候下“Candidatus PhytopPlasma austradisa”菌株的新替代宿主

IF 1.4 4区农林科学

Australasian Plant Pathology Pub Date : 2023-09-14 DOI: 10.1007/s13313-023-00946-4

M. Amiri Mazraie, K. Izadpanah, M. Taghavi, S. Samavi, M. M. Faghihi, M. Salehi

{"title":"New alternative hosts of ‘Candidatus Phytoplasma australasia’ strains in the warm climate of Hormozgan province, southern Iran","authors":"M. Amiri Mazraie, K. Izadpanah, M. Taghavi, S. Samavi, M. M. Faghihi, M. Salehi","doi":"10.1007/s13313-023-00946-4","DOIUrl":"10.1007/s13313-023-00946-4","url":null,"abstract":"<div>Hormozgan province in the south of Iran is one of the main regions in producing tomatoes, eggplants, bell peppers, and other vegetables as well as sesame in the winter season. In a 2021–2022 survey for phytoplasmas in different areas of this province, phytoplasma–type symptoms were observed in tomato, bell pepper, eggplant and sesame crops and many weed plants including Chenopodium album, Taraxacum officinale, Erodium cicutarium, Physalis angulata, Convolvulus virgatus, Tephrosia apollinea, and Malva sylvestris. Nested PCR assays using primers P1/P7 followed by R16mF2/R16mR1 confirmed association of phytoplasma with all symptomatic plants. 16 S rRNA nucleotide sequencing followed by virtual RFLP analysis showed that all detected phytoplasma strains from different hosts and locations belonged to 16SrII-D subgroup, ‘Candidatus Phytoplasma australasia’. The latter seemed to be the dominant phytoplasma among herbaceous plants in the region. To our knowledge, this is the first world report of natural infection of T. officinale, E. cicutarium, P. angulata, C. virgatus, T. apollinea, and M. sylvestris by a 16SrII-D phytoplasma. These plants can act as alternative hosts for transmission of the phytoplasma strains to major agricultural plants including tomato, pepper, eggplant, sesame and probably other plants.</div>","PeriodicalId":8598,"journal":{"name":"Australasian Plant Pathology","volume":"52 6","pages":"579 - 590"},"PeriodicalIF":1.4,"publicationDate":"2023-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71909669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Determining agro-climatic favourability zones for coffee leaf rust in Brazil – a new approach for assisting crop risk planning 确定巴西咖啡叶锈病的农业气候适宜区——一种辅助作物风险规划的新方法

IF 1.4 4区农林科学

Australasian Plant Pathology Pub Date : 2023-09-12 DOI: 10.1007/s13313-023-00942-8

Fernando Dill Hinnah, Paulo Cesar Sentelhas, Henrique Boriolo Dias

{"title":"Determining agro-climatic favourability zones for coffee leaf rust in Brazil – a new approach for assisting crop risk planning","authors":"Fernando Dill Hinnah, Paulo Cesar Sentelhas, Henrique Boriolo Dias","doi":"10.1007/s13313-023-00942-8","DOIUrl":"10.1007/s13313-023-00942-8","url":null,"abstract":"<div>Coffee leaf rust (CLR) poses a significant threat to coffee crops worldwide, including those grown in Brazil. CLR thrives in climatic conditions ideal for coffee cultivation, which results in its constant presence in Brazilian coffee farms. The intensity of CLR exhibits variations as affected by interannual and spatial climate variability that shape epidemics. The aim of this study was to determine the agro-climatic favourability zones for CLR occurrence in the major coffee-producing regions of Brazil based on region-specific agro-climatic conditions. Climate data spanning from 1961 to 2015 at 46 sites were selected to represent the major coffee-producing regions. Using a CLR infection rate model, daily simulations were performed to calculate the cumulative infection rate (CIR) for each site and growing season, starting from 1st October to 30th June of the following year. Based on the CIR values, the sites and seasons were categorised into five favourability classes: Very Low, Low, Medium, High, and Very High. An Agro-Climatic Favourability index (ACFavindex) was developed, considering the frequency of seasons falling within each favourability class. A map displaying four distinct favourability zones across the studied regions was then obtained and showed that most of the traditional coffee-growing areas fell within the Medium to High Favourability zones for CLR. The obtained map, delineating CLR favourability zones, holds practical value for coffee growers, consultants, and policymakers alike. It can guide the selection of CLR-resistant coffee cultivars for new cultivation areas and aid in the development of effective disease control strategies.</div>","PeriodicalId":8598,"journal":{"name":"Australasian Plant Pathology","volume":"52 6","pages":"555 - 565"},"PeriodicalIF":1.4,"publicationDate":"2023-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71909502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

First report of fruit rot caused by Phytophthora parsiana Mostowf., D.E.L. Cooke and Banihash, on arecanut in Western-Ghats of Southern India parsiana toptophthora Mostowf引起的果实腐病首次报道。D.E.L. Cooke和Banihash在印度南部西高止山脉的槟榔上的研究

IF 1.4 4区农林科学

Australasian Plant Pathology Pub Date : 2023-09-06 DOI: 10.1007/s13313-023-00944-6

Balanagouda Patil, R. Pandian, S. Thube, Vinayaka Hegde, Shankarappa Sridhara, M. K. Rajesh, Prathibha Veerappa Hanumanthappa, Gangaraj Karyath Palliath, Pruthviraj

引用次数: 0

First report of fruit rot caused by Phytophthora parsiana Mostowf., D.E.L. Cooke and Banihash, on arecanut in Western-Ghats of Southern India parsiana toptophthora Mostowf引起的果实腐病首次报道。D.E.L. Cooke和Banihash在印度南部西高止山脉的槟榔上的研究

IF 1.4 4区农林科学

Australasian Plant Pathology Pub Date : 2023-09-06 DOI: 10.1007/s13313-023-00944-6

Balanagouda Patil, R. Thava Prakasa Pandian, Shivaji H. Thube, Vinayaka Hegde, Shankarappa Sridhara, M. K. Rajesh, Prathibha Veerappa Hanumanthappa, Gangaraj Karyath Palliath, Pruthviraj

{"title":"First report of fruit rot caused by Phytophthora parsiana Mostowf., D.E.L. Cooke and Banihash, on arecanut in Western-Ghats of Southern India","authors":"Balanagouda Patil, R. Thava Prakasa Pandian, Shivaji H. Thube, Vinayaka Hegde, Shankarappa Sridhara, M. K. Rajesh, Prathibha Veerappa Hanumanthappa, Gangaraj Karyath Palliath,  Pruthviraj","doi":"10.1007/s13313-023-00944-6","DOIUrl":"10.1007/s13313-023-00944-6","url":null,"abstract":"<div>Arecanut is an important commercial plantation crop in India, and many farm families depend solely on the arecanut industry. In July 2018, immature nuts were shed heavily due to fruit rot disease in the Western-Ghats region. Though the symptoms were suggestive of common fruit rot disease, they appeared to be unusual. The associated pathogen was isolated from the infected tissue using the standard isolation technique, and an oomycete fungus was consistently isolated from infected nuts. Based on the colony and spore morphology, the pathogen was identified as Phytophthora sp. and by multi-gene sequencing (ITS, β-tub, TEF-1α, and Cox-II) confirmed it as Phytophthora parsiana. The pathogenicity of the isolate (P25) was established by inoculating healthy arecanut fruits with the pin-prick method. To our knowledge, this is the pioneering work that represents the first report of Phytophthora parsiana infecting arecanut in Western-Ghats of Southern India.</div>","PeriodicalId":8598,"journal":{"name":"Australasian Plant Pathology","volume":"52 6","pages":"567 - 571"},"PeriodicalIF":1.4,"publicationDate":"2023-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71909101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Infectivity and genetic recombination of yellow mosaic viruses associated with blackgram (Vigna mungo L. Hepper) in South India 印度南部与黑斑病（Vigna mungo L.Hepper）相关的黄色花叶病毒的感染性和基因重组

IF 1.4 4区农林科学

Australasian Plant Pathology Pub Date : 2023-09-05 DOI: 10.1007/s13313-023-00941-9

V. K. Satya, D. Alice, S. Kanakala, P. Jyothsna, V. G. Malathi, P. Jayamani

{"title":"Infectivity and genetic recombination of yellow mosaic viruses associated with blackgram (Vigna mungo L. Hepper) in South India","authors":"V. K. Satya, D. Alice, S. Kanakala, P. Jyothsna, V. G. Malathi, P. Jayamani","doi":"10.1007/s13313-023-00941-9","DOIUrl":"10.1007/s13313-023-00941-9","url":null,"abstract":"<div>The pulse crops widely cultivated in South India for their protein rich grains are negatively affected by whitefly-transmitted begomoviruses (genus Begomovirus, family Geminiviridae) causing yellow mosaic disease (YMD). Here, YMD-inducing begomoviruses were characterized from cultivation areas in Tamil Nadu, South India, with complete sequences of seven DNA-A and eight DNA-B components determined. The pairwise nucleotide sequence comparisons for complete DNA-A showed that both mungbean yellow mosaic virus (MYMV) and mungbean yellow mosaic India virus (MYMIV) were present. The comparisons of nucleotide sequences of YMD begomoviral isolates revealed the presence of five groups of DNA-B components, which showed only 81–88% identity in the common region with their cognate DNA-A. The recombination analysis revealed significant events in the the non-coding and coding regions in DNA-B components, which were predicted amongst the MYMV isolates and between MYMV and MYMIV sequences. The partial tandem repeat constructs of MYMV and MYMIV DNA-A and DNA-B isolates (GenBank Accession Nos. KC911721, KC911724, AF142440 and AF126406) were infectious in blackgram (Vigna mungo), which showed typical YMD symptoms. Also the blackgram genotypes showed different levels of susceptibility and tolerance under experimental inoculation with MYMV and MYMIV. From the results, it is inferred that MYMV and MYMIV have occurred in mixed infection in blackgram.</div>","PeriodicalId":8598,"journal":{"name":"Australasian Plant Pathology","volume":"52 6","pages":"539 - 554"},"PeriodicalIF":1.4,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71908721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Infectivity and genetic recombination of yellow mosaic viruses associated with blackgram (Vigna mungo L. Hepper) in South India 南印度与黑革病(Vigna mungo L. Hepper)相关的黄花叶病毒的传染性和基因重组

IF 1.4 4区农林科学

Australasian Plant Pathology Pub Date : 2023-09-05 DOI: 10.1007/s13313-023-00941-9

V. Satya, D. Alice, S. Kanakala, P. Jyothsna, V. G. Malathi, P. Jayamani

引用次数: 0

First record of Cladosporium species causing leaf spots on globe artichoke (Cynara scolymus) 洋蓟叶斑病枝孢菌的首次记录

IF 1.4 4区农林科学

Australasian Plant Pathology Pub Date : 2023-09-02 DOI: 10.1007/s13313-023-00939-3

M. Aydogdu, İ. Kurbetli, G. Sülü, S. Kaymak

引用次数: 0