Journal of Plant Pathology最新文献

{"title":"Anti-oomycete activity of asparagus and olive by-products with potential to control Phytophthora cinnamomi root rot","authors":"María Ángeles Romero Martín, Rosa López García, Rocío Rodríguez-Arcos, Ana Jiménez-Araujo, María Socorro Serrano Moral","doi":"10.1007/s42161-024-01696-y","DOIUrl":"https://doi.org/10.1007/s42161-024-01696-y","url":null,"abstract":"<p>The development of environmentally friendly control methods to mitigate the severe damages caused by <i>Phytophthora cinnamomi</i> in the Mediterranean climate-type ecosystems is essential. In this way, crop waste and by-products which represent between 13 and 65% of agriculture production, are a rich source of bioactive compounds with antifungal and biocide activity. The main objective of this work was to determine the biocide activity against <i>P. cinnamomi</i> of three organic extracts. These extracts enriched in bioactive compounds come from residues of asparagus (Asp) and olive crops (Oliv and OH, from fruits and leaves respectively). They were evaluated at two doses (0.15 and 0.10%) on the mycelial growth and sporangial production of <i>P. cinnamomi</i> by in vitro experiments. Mycelial growth and sporangial production were significant reduced from the three plant extracts at the two doses tested, reaching a total inhibition with Asp at both doses. In general, no phytotoxicity symptoms were observed on seed germination and plant development, except for a plant yield reduction in the substrate treated with Oliv and Asp at the highest dose. In experiments performed in artificially infested soil, Asp induced a reduction of chlamydospores viability greater than 75% compared to unamended soil. Additionally, <i>in planta</i> experiments showed a significant reduction in plant mortality in substrate amended with OH. These results suggest that soil application of Asp and OH can limit <i>P. cinnamomi</i> infectivity and survival, setting the first steps to develop a sustainable method to control the root disease based on agricultural waste circular economy.</p>","PeriodicalId":16837,"journal":{"name":"Journal of Plant Pathology","volume":"5 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141517061","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}

{"title":"A novel virus of the family Secoviridae detected in lettuce in the United Kingdom and in dandelion in Slovakia","authors":"Ian P. Adams, Giuseppe Micali, Ummey Hany, Anna Skelton, Val Harju, Adam Buxton-Kirk, Lukáš Predajňa, Katarína Šoltys, Michaela Mrkvová, Miroslav Glasa, Adrian Fox","doi":"10.1007/s42161-024-01677-1","DOIUrl":"https://doi.org/10.1007/s42161-024-01677-1","url":null,"abstract":"<p>During the screening of lettuce (<i>Lactuca sativa</i> L.) samples from the United Kingdom in 2015 using high throughput sequencing (HTS) technology, the genome of a novel virus was identified in a plant showing symptoms of stunting and yellowing. The virus genome consisted of two RNA molecules; an RNA1 of 6001 nt encoding a polyprotein with protein cofactor, helicase, protease and RNA-dependent RNA polymerase motifs and an RNA2 of 6553 nt encoding a polyprotein with viral movement and coat protein motifs. Independently, in 2018, an analysis of ribodepleted total RNA from a dandelion (<i>Taraxacum officinale</i> L.) displaying leaf malformation and puckering revealed a complex infection involving a secovirus related to the UK lettuce virus. Moreover, a small survey confirmed the presence of the secovirus in environmental dandelion samples in Slovakia. Detailed analysis of these sequences suggests they all belonged to the same putative species, a member of the subgenus <i>Stramovirus</i>, genus <i>Sadwavirus</i>, family <i>Secoviridae</i> named lettuce secovirus 1 with the tentative Latin binomial <i>Sadwavirus lactucae</i>.</p>","PeriodicalId":16837,"journal":{"name":"Journal of Plant Pathology","volume":"39 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141505913","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}

{"title":"Thermal time and time of sowing impacts disease development of Brassica napus inoculated with diverse Sclerotinia sclerotiorum isolates","authors":"Sarita Jane Bennett, Ashmita Rijal Lamichhane, Pippa Joanne Michael","doi":"10.1007/s42161-024-01680-6","DOIUrl":"https://doi.org/10.1007/s42161-024-01680-6","url":null,"abstract":"<p>Sclerotinia stem rot (SSR), caused by the necrotrophic fungal pathogen <i>Sclerotinia sclerotiorum</i>, is a severe disease of broadleaf crops including canola/rapeseed (<i>Brassica napus</i>), leading to significant yield loss in conducive years. Replication of field conditions is challenging in variety disease resistance screening with testing required under a wide range of environmental conditions and at different plant growth stages. We investigated the role of thermal time in disease progression using three sowing times in the growing season, with six commonly grown Australian varieties of canola inoculated with four diverse West Australian isolates of <i>S. sclerotiorum</i> at 30% flowering. Area Under the Disease Progression Stairs (AUDPS), sclerotia production and weight, and seed production were measured. Time of sowing was found to be a crucial factor in explaining differences in AUDPS, stem width, seed production and sclerotia number according to the analysis of variance (<i>P</i> &lt; 0.05), influencing isolate aggressiveness and disease progression. Linear mixed-effect models, regression decision tree models and principal components analysis were also conducted to determine the importance of a range of variables being included in variety screening for resistance. For all these analyses, both thermal time from sowing to 30% flowering when plants were inoculated, as well as thermal time over the 28-day inoculation period, in both canola and <i>S. sclerotiorum</i>, were important in explaining the variation. The study concludes by recommending that thermal time should be included in future SSR prediction risk models.</p>","PeriodicalId":16837,"journal":{"name":"Journal of Plant Pathology","volume":"49 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141505924","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}

{"title":"Assessment of certain plant extracts for controlling potato tuber soft rot disease caused by Pectobacterium carotovorum subsp. carotovorum","authors":"Najeeb M. Almasoudi, Adel D. Al-Qurashi, Kamal A. M. Abo-Elyousr","doi":"10.1007/s42161-024-01673-5","DOIUrl":"https://doi.org/10.1007/s42161-024-01673-5","url":null,"abstract":"<p>The study aimed to evaluate the effectiveness of three plant extracts (cumin (<i>Cuminum cyminum</i> L.), peel fruit of pomegranate (<i>Punica granatum</i>), and fruit of black pepper (<i>Piper nigrum</i> L.)), against <i>Pectobacterium carotovorum</i> subsp. <i>carotovorum</i> (<i>Pcc</i>), a bacterium that causes potato tuber soft rot disease. This disease can result in significant losses to potato production and affects the quality of potatoes during storage, transit and shipment. To conduct the study, five isolates of the pathogenic bacterium were obtained from naturally infected potato tubers. According to the in vitro screening, the most virulence isolate <i>Pcc</i>2 was molecularly identified using 16S rRNA gene partial sequencing. Three plant extracts (cumin, pomegranate, and black pepper), were tested for their antibacterial activity against the bacterium using in vitro experiments. The results showed that all the three plants extract exhibited inhibition of the bacterial growth. Among the three-plant extract, pomegranate was found to have the best inhibitory effect on the bacterium (0.92 cm inhibition zone). Based on the findings of the in vitro experiments, the use of all extract at a concentration of 50 mg was recommended for controlling the soft rot disease in potato tubers during storage conditions. The data demonstrated that pomegranate extract was on the first ranking with bacterial growth reduction percentage estimated (1.4 mm), followed by cumin extract with growth reduction estimated (0.92). The data revealed that all of the tested plant extracts were able to reduce the severity of the disease. Of all the extracts, pomegranate extract showed the highest reduction in disease severity (91.3%). It is evident that the treatments with pomegranate, black pepper, and cumin consistently led to an increase in total phenol content over the course of 21 days. Treatments with methanolic extract of pomegranate, black pepper, and cumin lead to varying degrees of increased peroxidase (PO), polyphenol oxidase (PPO) and phenylalanine ammonia-lyase (PAL) activities over the course of the experiment. The data shows that the effectiveness of these treatments generally increases with time. In conclusion, the study showed that all plants extract tested herein has the potential to control potato tuber soft rot disease, which is a major problem affecting potato production.</p>","PeriodicalId":16837,"journal":{"name":"Journal of Plant Pathology","volume":"26 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141505911","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}

{"title":"Rapid and quantitative detection of Aspergillus niger Van Tieghem using loop-mediated isothermal amplification assay","authors":"Xiaodong Dai, Yanyong Cao, Minghui Yu, Meiwei Hou, Huimin Li, Jie Li, Hangyu Li, Peipei Li, Zhenyu Wang, Xinyou Zhang","doi":"10.1007/s42161-024-01674-4","DOIUrl":"https://doi.org/10.1007/s42161-024-01674-4","url":null,"abstract":"<p>Peanut (<i>Arachis hypogaea</i> L.) crown rot and root rot are common diseases caused by <i>Aspergillus niger</i> Van Tieghem. Early and accurate detection of <i>A. niger</i> is key to disease management. In this study, the design of two to five sets of loop-mediated isothermal amplification (LAMP) primers was based on the <i>EglA</i>, <i>GOD</i>, <i>Tub</i>, <i>NRPS</i>, <i>Tan</i>, <i>CbhA</i>, and <i>CbhB</i> genes of <i>A. niger</i>. Of these, primer set GOD-91 was selected for optimization of the three-factor LAMP system: the <i>Bst</i> DNA polymerase concentration, the concentration ratio of the inner and outer primers, and the concentration of Mg²⁺. In addition, the optimized LAMP reaction system for <i>A. niger</i> detection was validated for specificity, sensitivity, and on-site feasibility. The specificity test showed that <i>A. niger</i> could be specifically detected with the proposed method without cross-amplification of other pathogenic fungi DNA. Moreover, based on the sensitivity test, the lowest detection limit of this reaction system was 5.1 × 10⁻⁷ ng/µL pAN01 plasmid DNA, after which a standard curve was generated for the quantitative detection of <i>A. niger.</i> The LAMP method was further applied for field sample assessment before and after <i>A. niger</i> infection, successfully detecting <i>A. niger</i> presence in the samples collected in the field. This study yielded a sensitive, specific, and reproducible LAMP system that can be used to assess on-site samples within 45 min. It is an effective approach for the rapid and quantitative detection of <i>A. niger</i>.</p>","PeriodicalId":16837,"journal":{"name":"Journal of Plant Pathology","volume":"19 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141505914","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}

{"title":"Seed treatment with Mortierella alpina M01 promotes tomato growth and mitigates verticillium wilt and bacterial speck disease infections by potentiating plant antioxidant responses","authors":"Chaimae Nouri, Mouadh Saadaoui, Théo Morlevat, Siham Esserti, Lydia Faize, Aicha Rifai, Koussa Tayeb, Amal Smaili, Mohamed Faize, Jean-Stéphane Venisse","doi":"10.1007/s42161-024-01669-1","DOIUrl":"https://doi.org/10.1007/s42161-024-01669-1","url":null,"abstract":"<p>Almost 85% of tomato plants in the world are grown in controlled greenhouse. This confined microclimate forms a favorable environment for the fast development of pathogens. This study evaluates the use of <i>Mortierella alpina</i> M01 strain as a plant growth-promoting fungus and biocontrol agent for tomato plants in greenhouses. Its bio-eliciting effect on growth, photosynthetic traits, and fruit yield, together with its protective ability against verticillium wilt and bacterial speck diseases was assessed. The treatment of tomato seeds with <i>M. alpina</i> M01 spore suspension significantly enhanced tomato growth variables such as stem length, leaf and leaflets numbers, and root and fruit biomass. It improved photosynthesis efficiency, stomatal conductance, and transpiration rate. Concerning plant immunity, <i>M. alpina</i> M01 lowered leaf alteration index by 31% and browning index by 86%, mitigating the damage inflicted by <i>Verticillium dahliae</i> in tomato. Likewise, <i>M. alpina</i> M01 was effective in reducing disease score and average of number of lesions caused by <i>Pseudomonas syringae</i> pv. <i>tomato</i> by 48 and 76%, respectively. <i>M. alpina</i> M01 modulated lipid peroxidation triggered by <i>V. dahliae</i> or <i>Ps.</i> pv. <i>tomato</i> infestations, by potentiating H₂O₂ accumulation and the activity of the antioxidant enzymes GPOD or PPO. Finally, phenolic and flavonoid contents increased after inoculation with the bacterial pathogen in <i>M. alpina</i> M01-pre-treated plants, implying primed defenses. These results highlight the potential of <i>M. alpina</i> M01 as a PGPF to improve tomato growth, and as a biocontrol agent against <i>V. dahliae</i> and <i>Ps.</i> pv. <i>tomato</i> in controlled confined environments such as greenhouses.</p>","PeriodicalId":16837,"journal":{"name":"Journal of Plant Pathology","volume":"2012 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141517062","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}

{"title":"Control of coptis root rot by combination of Bacillus cereus isolate Y9 and other antagonistic microorganisms","authors":"Pengying Mei, Tao Dou, Xuhong Song, Longyun Li","doi":"10.1007/s42161-024-01685-1","DOIUrl":"https://doi.org/10.1007/s42161-024-01685-1","url":null,"abstract":"<p>Root rot is a destructive soil-borne disease of <i>Coptis chinensis</i>, which depends on chemical control at present, and more attention should be paid to biocontrol of disease. In the present research, isolate Y9 isolated from healthy root samples of <i>Coptis</i>, was identified as <i>Bacillus cereus.</i> Further screening and pot experiments showed that <i>B. cereus</i> isolate Y9 inhibited the growth of the main causal agents of coptis root rot disease (<i>Fusarium solani</i> and <i>F. avenaceum</i>) and seven other phytopathogenic fungi. The application of <i>B. cereus</i> isolate Y9 and compatible <i>Trichoderma harzianum</i>, <i>T. atroviride</i> and <i>B. amyloliquefaciens</i>, singly and in combination were found to be effective against <i>Fusarium</i> root rot in vitro and in field experiments. In field experiments, combinations of <i>T. harzianum + B. amyloliquefaciens</i> + Y9 (HYJ, in ratio of 1:1:1) showed the highest control efficacy of 63.85%, which was higher than the expected value (53.18%), indicating synergistic effect on the control of coptis root rot. Therefore, <i>B. cereus</i> isolate Y9 may be a potential biological control agent, and combined use with <i>T. harzianum </i> and <i> B. amyloquefaciens</i> offered even greater potential. The long-term effects of isolate <i>B. cereus</i> Y9 and its combinations on <i>C. chinensis</i> should be assessed in different locations and seasons in the future.</p>","PeriodicalId":16837,"journal":{"name":"Journal of Plant Pathology","volume":"1 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141517063","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}

{"title":"Infection of tomato in Iraq with tomato leaf curl Palampur virus and multiple variants of tomato yellow leaf curl virus","authors":"Muhannad Al-Waeli, Niayesh Shahmohammadi, Susan Tavakoli, Akbar Dizadji, Anders Kvarnheden","doi":"10.1007/s42161-024-01682-4","DOIUrl":"https://doi.org/10.1007/s42161-024-01682-4","url":null,"abstract":"<p>Tomato yellow leaf curl disease (TYLCD) and tomato leaf curl disease (TLCD) cause serious losses in tomato production, especially in tropical and sub-tropical regions. In 2014–2015, tomato samples with TYLCD/TLCD-like symptoms were collected from different provinces of Iraq and infection with tomato yellow leaf curl virus (TYLCV) identified. To study the diversity of TYLCV, DNA of eight positive samples from this survey was used for rolling-circle amplification, cloning and sequencing. Pairwise nucleotide sequence comparisons with complete genomes showed that the Iraqi TYLCV isolates belonged to the strains TYLCV-IL and TYLCV-Mld. In a phylogenetic analysis, the Iraqi TYLCV-IL isolates grouped into three distinct clades, consisting of TYLCV-IL (A) and the two new variants TYLCV-IL (D) and TYLCV-IL (E). The Iraqi isolate of TYLCV-Mld grouped into the newly proposed TYLCV-Mld (D) variant. For one sample, sequencing also revealed co-infection with tomato leaf curl Palampur virus (ToLCPalV). The phylogenetic tree of ToLCPalV DNA-A showed a close relationship between the isolates of different hosts from Iraq and Iran. No evidence of recombination was detected in ToLCPalV DNA-A, but recombination was observed for the TYLCV isolates. The results indicate that there is a high diversity of TYLCV in Iraq, including new variants, that is partly shared with Kuwait and countries in the Eastern Mediterranean Region. Occurrence of multiple TYLCV variants and ToLCPalV can act as a potential threat to tomato production in Iraq.</p>","PeriodicalId":16837,"journal":{"name":"Journal of Plant Pathology","volume":"43 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141529308","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}

{"title":"Secondary metabolites of Siberian phytopathogenic fungi of the genus Corinectria Gonzalez & Chaverri and their phytotoxicity","authors":"Tatyana V. Antipova, Valentina P. Zhelifonova, Yulia A. Litovka, Boris P. Baskunov, Alexander E. Noskov, Igor N. Pavlov","doi":"10.1007/s42161-024-01619-x","DOIUrl":"https://doi.org/10.1007/s42161-024-01619-x","url":null,"abstract":"<p>Ascomycete fungi isolated in Central Siberia from canker lesions of <i>Abies sibirica</i> Ledeb. were assigned to the genus <i>Corinectria</i> Gonzalez &amp; Chaverri. Our earlier research has shown four <i>Corinectria</i> Siberian strains to be significantly different genetically from the known <i>Corinectria</i> spp. This work investigated the secondary metabolites of 23 morphologically similar <i>Corinectria</i> Siberian strains and their phytotoxicity. The strains were divided into two types by their morphological and cultural traits, MCT1 and MCT2. The MCT1 strains synthesized the meroterpenoids ilicicolins A and B, ilicicolin A epoxide and chlorocylindrocarpol; the MCT2 strains produced ilicicolins C, D (ascochlorin), F and ascofuranol. The phytotoxicity of the <i>Corinectria</i> strains showed a significant heterogeneity to <i>Picea obovata</i> seeds and was exhibited by 31% of the MCT1 strains and 50% of the МСТ2 strains. The more phytotoxic strains had an inhibitory effect on <i>A. sibirica</i> calluses. Ilicicolins C, D, and F synthesized by the MCT2 strains significantly inhibited the growth processes of both <i>A. sibirica</i> seedlings and <i>Pinus sibirica</i> Du Tour saplings.</p>","PeriodicalId":16837,"journal":{"name":"Journal of Plant Pathology","volume":"6 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141505912","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}

{"title":"Physiological and morphological traits associated with Fusarium head blight response in a flavonoid-rich durum wheat genotype","authors":"Linda Felici, Sara Francesconi, Francesco Sestili, Giorgio Mariano Balestra","doi":"10.1007/s42161-024-01663-7","DOIUrl":"https://doi.org/10.1007/s42161-024-01663-7","url":null,"abstract":"<p>Durum wheat is among the cereal crops with the highest susceptibility to Fusarium Head Blight (FHB), the most devastating wheat disease. Purple pericarp durum wheat genotypes, having anthocyanin-rich grains, are an unexplored group of accessions, which may provide valuable information about the role of flavonoids in wheat-<i>Fusarium</i> interaction. In this study, a purple pericarp durum wheat accession (Purple durum) was challenged with <i>Fusarium graminearum</i> infection, evaluating the different responses of physiological traits, in comparison with an FHB-resistant line (DBC-480) and a commercial FHB-susceptible cultivar (Svevo). Purple durum showed high susceptibility to FHB, but the infection did not affect the seed set, as for the resistant control. In Purple durum flag leaves, lower flavonoid content and higher temperature depression, compared to the resistant control, were detected. The infection affected the difference between the spike temperature and the flag leaf temperature in the resistant and the susceptible control in an opposite way, while the total phenolic content was always higher in the infected spikes. Instead, the total anthocyanin content (TAC) of the spikes was considerably lower in Purple durum subjected to the infection compared to the mock plants, while TAC increased in the infected resistant genotype, suggesting an involvement of anthocyanins in the resistance mechanism of DBC-480. Association among morphological spike traits and physiological traits are discussed. Our results corroborate the importance of phenylpropanoids in FHB-wheat interaction and point attention on anthocyanin metabolism, suggesting to further consider these metabolites, which are under-investigated for durum wheat resistance.</p>","PeriodicalId":16837,"journal":{"name":"Journal of Plant Pathology","volume":"55 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141531179","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}