Long-term survival of asexual Zymoseptoria tritici spores in the environment DOI Creative Commons
William T. Kay, Paul O’Neill, Sarah J. Gurr

и другие.

BMC Biology, Год журнала: 2024, Номер 22(1)

Опубликована: Ноя. 19, 2024

Abstract Background The fungal phytopathogen Zymoseptoria tritici , causal agent of the economically damaging Septoria blotch wheat, is different from most foliar pathogens in that its germination occurs slowly and apparently randomly after arrival on leaf surface followed by a potentially prolonged period epiphytic growth even reproduction, during which no feeding structures are formed fungus. Thus, understanding cues for mechanisms underpin survival low-nutrient environments could provide key new avenues disease control. Results In this work, we examine survival, culturability virulence spores following transfer high nutrient environment to water. We find sub-population Z. can survive remain virulent at least 7 weeks water alone, time multicellular split single cells. fungus relies heavily stored lipids; however, if cell suspensions dried, cells without lipid utilisation. Changes gene expression first hours suspension reflect adaptation stress, while longer term starvation (7 days) induces changes particularly primary metabolism cytochrome P450 (CYP) expression. Importantly, also found equally or better able soil as water, rain-splash occurring 49 days inoculation wheat seedlings growing inoculated cause disease. Conclusions blastospores long periods, spanning intercrop UK winter wheat. They rely internal stores, with external nutrition, although large proportion do not such an extended period, those grown rich media. has exceptional strategies, likely be important population genetics developing novel routes

Язык: Английский

The Role of Heat Shock Protein (Hsp) Chaperones in Environmental Stress Adaptation and Virulence of Plant Pathogenic Bacteria DOI Open Access
Donata Figaj

International Journal of Molecular Sciences, Год журнала: 2025, Номер 26(2), С. 528 - 528

Опубликована: Янв. 9, 2025

Plant pathogenic bacteria are responsible for a substantial number of plant diseases worldwide, resulting in significant economic losses. Bacteria exposed to numerous stress factors during their epiphytic life and within the host. Their ability survive host cause symptomatic infections depends on capacity overcome stressors. have evolved range defensive adaptive mechanisms thrive under varying environmental conditions. One such mechanism involves induction chaperone proteins that belong heat shock protein (Hsp) family. Together with proteases, these integral components quality control system (PQCS), which is essential maintaining cellular proteostasis. However, knowledge action considerably less extensive than human animal pathogens. This study discusses modulation Hsp levels by phytopathogenic response conditions, including elevated temperature, oxidative stress, changes pH or osmolarity environment, variable conditions infection. All influence bacterial virulence. Finally, secretion GroEL DnaK outside cell considered potentially important virulence trait.

Язык: Английский

Процитировано

1
Endophytic fungi isolated from Vietnamese Nut grass (Cyperus rotundus L. Cyperaceae) – A promising solution to mitigate the prime phenomenon of antibiotic resistance DOI Creative Commons

Bac V.G. Nguyen,

Linh X.T. Tran,

Anh-Tu Ha-Nguyen

и другие.

Heliyon, Год журнала: 2025, Номер unknown, С. e41920 - e41920

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

0
Phytochrome-mediated shade avoidance responses impact the structure and composition of the bacterial phyllosphere microbiome of Arabidopsis DOI Creative Commons

James A. O’Rourke,

Stacey A. Vincent,

I. Ellis Williams

и другие.

Environmental Microbiome, Год журнала: 2025, Номер 20(1)

Опубликована: Фев. 6, 2025

Abstract The shade avoidance response triggers a dramatic promotion of elongation growth, accompanied by significant reprogramming metabolic pathways as plants seek to prevent overtopping and adapt vegetative shade. Here we demonstrate that simulated results in changes the structure composition phyllosphere bacterial microbiome. Our study uncovered shifts diversity, occurrence, abundance activity bacteria within A comparison responses both wild-type phytochrome mutants, which inherently exhibit shade-avoidance phenotype, revealed indirect host plant physiology direct light among microbiota. Hierarchical clustering patterns further suggested over third taxa constituting core microbiome our assay show some degree Bacteria increased on with phenotype corresponded genera associated beneficial traits such enhanced disease resistance growth promotion. findings suggests manipulate their under conditions strategy optimise fitness when competing for light. We discuss implications terms furthering understanding plant-microbe signalling shaping possibility manipulating health an agricultural setting at high planting densities.

Язык: Английский

Процитировано

0
Epiphytic bacterial consortia drive growth regulation in potato under methyl jasmonate elicitation: A leaf surface multi-omics perspective DOI

Xiaoting Fang,

Peihua Li,

Chao Luo

и другие.

Plant Physiology and Biochemistry, Год журнала: 2025, Номер 222, С. 109737 - 109737

Опубликована: Март 6, 2025

Язык: Английский

Процитировано

0
Release of ice-nucleating particles from leaves during rainfall DOI Creative Commons
Franz Conen, Annika Einbock

The Science of Nature, Год журнала: 2025, Номер 112(2)

Опубликована: Март 25, 2025

Plant surfaces are a major source of particles able to initiate ice formation in clouds little below 0 °C. Rainfall promotes the release such ice-nucleating (INPs) from vegetation. However, pattern their throughout rain events remains unexplored. Here, we investigate at high temporal resolution INP dynamics impacting and running off single leaflets Juglans regia during two relate results total inventories on leaflets. Throughout both events, leaf runoff was distinctly enriched INPs as compared with rainwater. A large fraction washed rainfall released already beginning events. Except for highest temperature interval, less than 40% detachable had been removed after We hypothesise that surfactant excretion INP-producing bacteria shapes observed release.

Язык: Английский

Процитировано

0
Leaf Development and Its Interaction with Phyllospheric Microorganisms: Impacts on Plant Stress Responses DOI Creative Commons
Huanhuan Yang, Jing Liu‐Zeng, Mei Ma

и другие.

Plant Stress, Год журнала: 2025, Номер unknown, С. 100843 - 100843

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

0
Role of the Beneficial Phyllosphere Microbiome in the Defense against Red Clover Anthracnose Caused by Colletotrichum americae-borealis DOI

Meiqi Mu,

Muzhapaer Tuluhong, Jingwen Jiang

и другие.

Microbiological Research, Год журнала: 2025, Номер 297, С. 128184 - 128184

Опубликована: Апрель 14, 2025

Язык: Английский

Процитировано

0
Epiphytic Yeasts from South Romania for Preventing Food Microbial Contamination DOI Creative Commons
Viorica Maria Corbu,

Andreea Ștefania Dumbravǎ,

Irina Gheorghe-Barbu

и другие.

Life, Год журнала: 2024, Номер 14(9), С. 1087 - 1087

Опубликована: Авг. 29, 2024

Epiphytic yeasts represent an important source for the development of novel strategies aiming to combat food microbial contamination. The present study deals with characterization nine yeast strains belonging Starmerella, Candida, Metschinikowia, Lachancea, Kodamaea and Pichia genera, isolated from surface plants Botanical Garden “Dimitrie Brandza” (Bucharest, Romania) use as antimicrobial probiotic agents. tests involved determination safe status, cell growth under stress conditions, activity against pathogenic Candida bacteria strains, respectively, well phytopathogenic filamentous fungi lipolytic activity. None showed all characteristics virulence pathogenicity, rare positive results being explained rather by their adaptability habitats origin. Lachancea thermotolerans CMGB-ST12 ohmeri CMGB-ST19 grew at 37 °C; Metschnikowia reukaufii CMGB-ST21.2, M. CMGB-ST.8.1 CMGB ST10 in presence 10% NaCl, while L. K. tolerated both acidic alkaline pH values (3.0 12.0). studied good krusei, albicans Gram-negative bacterial membranaefaciens CMGB-ST53 inhibiting up 100% fungi. All produced lipases tributyrin hydrolysis, best producer Starmerella bombi CMGB-ST1, only magnoliae CMGB-ST8.2 tested other yeasts. Overall, our show high potential industrial applications, obtaining products preventing a wide range contaminants.

Язык: Английский

Процитировано

0
Long-term survival of asexual Zymoseptoria tritici spores in the environment DOI Creative Commons
William T. Kay, Paul O’Neill, Sarah J. Gurr

и другие.

BMC Biology, Год журнала: 2024, Номер 22(1)

Опубликована: Ноя. 19, 2024

Abstract Background The fungal phytopathogen Zymoseptoria tritici , causal agent of the economically damaging Septoria blotch wheat, is different from most foliar pathogens in that its germination occurs slowly and apparently randomly after arrival on leaf surface followed by a potentially prolonged period epiphytic growth even reproduction, during which no feeding structures are formed fungus. Thus, understanding cues for mechanisms underpin survival low-nutrient environments could provide key new avenues disease control. Results In this work, we examine survival, culturability virulence spores following transfer high nutrient environment to water. We find sub-population Z. can survive remain virulent at least 7 weeks water alone, time multicellular split single cells. fungus relies heavily stored lipids; however, if cell suspensions dried, cells without lipid utilisation. Changes gene expression first hours suspension reflect adaptation stress, while longer term starvation (7 days) induces changes particularly primary metabolism cytochrome P450 (CYP) expression. Importantly, also found equally or better able soil as water, rain-splash occurring 49 days inoculation wheat seedlings growing inoculated cause disease. Conclusions blastospores long periods, spanning intercrop UK winter wheat. They rely internal stores, with external nutrition, although large proportion do not such an extended period, those grown rich media. has exceptional strategies, likely be important population genetics developing novel routes

Язык: Английский

Процитировано

0