scholarly journals РОСЛИННІ ПРОБІОТИКИ: ВПЛИВ НА РОСЛИНИ В УМОВАХ СТРЕСУ

2021 ◽  
Vol 43 (1) ◽  
pp. 10-18
Author(s):  
Оксана Миколаївна Дацько
Keyword(s):  
Pseudomonas Fluorescens ◽  
Pseudomonas Syringae ◽  
Zea Mays L ◽  
Fusarium Verticillioides ◽  
Enterobacter Aerogenes ◽  
Fibrobacter Succinogenes ◽  
Azospirillum Lipoferum ◽  
Serratia Liquefaciens ◽  
Mycobacterium Phlei ◽  
Bacillus Spp

Світове сільське господарство стоїть на порозі нової революції. Агровиробники прагнуть використовувати менше мінеральних добрив та пестицидів і при цьому отримувати високі врожаї. Одим із інструментів, що можуть сприяти цьому, є рослинні пробіотики. Тому мета цієї статті дослідити вплив корисних мікроорганізмів на сільськогосподарські культури, а саме на те які бактерії чи гриби можуть сприяти в боротьбі рослин проти стресу від посухи, засолених ґрунтів чи патогенів. Важливим аспектом дослідження стала також інформація про те, що міроорганізи позитивно впли-вають на поглинання рослинами поживних речовин. Всі ці фактори негативно впливають на вирощування кукурудзи на силос (Zea mays L.), особливо в умовах швидкої зміни клімату. Для проведення дослідження було проаналізовано літера-турні джерела зарубіжних та вітчизняних авторів. В результаті дослідження було з’ясовано, що на стрес від посухи у посівах кукурудзи впливає Azospirillum lipoferum. На засолених ґрунтах рослини кукурудзи краще переживають стрес за інокуляції рослин Pseudomonas syringae, Enterobacter aerogenes, P. fluorescens, Bacillus aquimaris, Serratia liquefaciens, Gracilibacillus, Staphylococcus, Virgibacillus, Salinicoccus, Bacillus, Zhihengliuella, Brevibacterium, Oceanobacillus, Exiguobacterium, Pseudomonas, Arthrobacter, Halomonas та ін. Дію на патогени в посівах кукурудзи виявляють Pseudomonas fluorescens, Fusarium oxysporum, Fusarium verticillioides, Pseudomonas, Bacillus cereus. На засвоєння рослинами кукурудзи по-живних речовин впливають Pseudomonas alcaligenes, Bacillus polymyxa, Mycobacterium phlei, Burkholderia, Bacillus spp., Herbaspirillum, Enterobacteriales, Streptomyces pseudovenezuelae, Ruminobacter amylophilus, Fibrobacter succinogenes, Enterococcus faecium, Арбускулярні мікоризні гриби, Enterobacter E1S2, Klebsiella MK2R2, Bacillus B2L2, Azospirillum brasilence, Micromonospora, Streptomyces, Bacillus, Hyphomicrobium, Rhizobium, Azohydromonas spp., Azospirillum spp. та інші. Цікавим фактом, що було виявлено в результаті цієї статті стало те, що деякі мікроорганізми можуть виявляти позитивну дію на рослину-госоподаря не лише в одному напрямку як наприклад, Pseudomonas fluorescens.

scholarly journals Induced Systemic Resistance in Arabidopsis thaliana Against Pseudomonas syringae pv. tomato by 2,4-Diacetylphloroglucinol-Producing Pseudomonas fluorescens

2012 ◽  
Vol 102 (4) ◽  
pp. 403-412 ◽  
Author(s):  
David M. Weller ◽  
Dmitri V. Mavrodi ◽  
Johan A. van Pelt ◽  
Corné M. J. Pieterse ◽  
Leendert C. van Loon ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Pseudomonas Fluorescens ◽  
Induced Resistance ◽  
Pseudomonas Syringae ◽  
Induced Systemic Resistance ◽  
Signal Transduction Pathway ◽  
Systemic Resistance ◽  
Wild Type ◽  
Challenge Inoculation ◽  
Dependent Signal

Pseudomonas fluorescens strains that produce the polyketide antibiotic 2,4-diacetylphloroglucinol (2,4-DAPG) are among the most effective rhizobacteria that suppress root and crown rots, wilts, and damping-off diseases of a variety of crops, and they play a key role in the natural suppressiveness of some soils to certain soilborne pathogens. Root colonization by 2,4-DAPG-producing P. fluorescens strains Pf-5 (genotype A), Q2-87 (genotype B), Q8r1-96 (genotype D), and HT5-1 (genotype N) produced induced systemic resistance (ISR) in Arabidopsis thaliana accession Col-0 against bacterial speck caused by P. syringae pv. tomato. The ISR-eliciting activity of the four bacterial genotypes was similar, and all genotypes were equivalent in activity to the well-characterized strain P. fluorescens WCS417r. The 2,4-DAPG biosynthetic locus consists of the genes phlHGF and phlACBDE. phlD or phlBC mutants of Q2-87 (2,4-DAPG minus) were significantly reduced in ISR activity, and genetic complementation of the mutants restored ISR activity back to wild-type levels. A phlF regulatory mutant (overproducer of 2,4-DAPG) had ISR activity equivalent to the wild-type Q2-87. Introduction of DAPG into soil at concentrations of 10 to 250 μM 4 days before challenge inoculation induced resistance equivalent to or better than the bacteria. Strain Q2-87 induced resistance on transgenic NahG plants but not on npr1-1, jar1, and etr1 Arabidopsis mutants. These results indicate that the antibiotic 2,4-DAPG is a major determinant of ISR in 2,4-DAPG-producing P. fluorescens, that the genotype of the strain does not affect its ISR activity, and that the activity induced by these bacteria operates through the ethylene- and jasmonic acid-dependent signal transduction pathway.

Improving sweet corn (Zea mays L. var saccharata) growth and yield using Pseudomonas fluorescens inoculation under varied watering regimes

2019 ◽  
Vol 226 ◽  
pp. 105757 ◽  
Author(s):  
Tayebeh Zarei ◽  
Ali Moradi ◽  
Seyed Abdolreza Kazemeini ◽  
Hooshang Farajee ◽  
Alireza Yadavi
Keyword(s):  
Zea Mays ◽  
Pseudomonas Fluorescens ◽  
Zea Mays L ◽  
Sweet Corn ◽  
Growth And Yield

scholarly journals Bacillus subtilis and Pseudomonas fluorescens Trigger Common and Distinct Systemic Immune Responses in Arabidopsis thaliana Depending on the Pathogen Lifestyle

Vaccines ◽  
2020 ◽  
Vol 8 (3) ◽  
pp. 503
Author(s):  
Ngoc Huu Nguyen ◽  
Patricia Trotel-Aziz ◽  
Sandra Villaume ◽  
Fanja Rabenoelina ◽  
Adrian Schwarzenberg ◽  
...  
Keyword(s):  
Bacillus Subtilis ◽  
Immune Responses ◽  
Signaling Pathways ◽  
Pseudomonas Syringae ◽  
Systemic Resistance ◽  
Functional Study ◽  
Marker Genes ◽  
Beneficial Bacteria ◽  
Bacillus Spp ◽  
Immune Pathways

Plants harbor various beneficial bacteria that modulate their innate immunity, resulting in induced systemic resistance (ISR) against various pathogens. However, the immune mechanisms underlying ISR triggered by Bacillus spp. and Pseudomonas spp. against pathogens with different lifestyles are not yet clearly elucidated. Here, we show that root drenching of Arabidopsis plants with Pseudomonas fluorescensPTA-CT2 and Bacillus subtilis PTA-271 can induce ISR against the necrotrophic fungus B. cinerea and the hemibiotrophic bacterium Pseudomonas syringae Pst DC3000. In the absence of pathogen infection, both beneficial bacteria do not induce any consistent change in systemic immune responses. However, ISR relies on priming faster and robust expression of marker genes for the salicylic acid (SA), jasmonic acid (JA), and ethylene (ET) signaling pathways upon pathogen challenge. These responses are also associated with increased levels of SA, JA, and abscisic acid (ABA) in the leaves of bacterized plants after infection. The functional study also points at priming of the JA/ET and NPR1-dependent defenses as prioritized immune pathways in ISR induced by both beneficial bacteria against B. cinerea. However, B. subtilis-triggered ISR against Pst DC3000 is dependent on SA, JA/ET, and NPR1 pathways, whereas P. fluorescens-induced ISR requires JA/ET and NPR1 signaling pathways. The use of ABA-insensitive mutants also pointed out the crucial role of ABA signaling, but not ABA concentration, along with JA/ET signaling in primed systemic immunity by beneficial bacteria against Pst DC3000, but not against B. cinerea. These results clearly indicate that ISR is linked to priming plants for enhanced common and distinct immune pathways depending on the beneficial strain and the pathogen lifestyle.

Antagonistic activity of Cuban native rhizobacteria against Fusarium verticillioides (Sacc.) Nirenb. in maize (Zea mays L.)

2008 ◽  
Vol 39 (2) ◽  
pp. 180-186 ◽  
Author(s):  
A. Hernández-Rodríguez ◽  
M. Heydrich-Pérez ◽  
Y. Acebo-Guerrero ◽  
M.G. Velazquez-del Valle ◽  
A.N. Hernández-Lauzardo
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Fusarium Verticillioides ◽  
Antagonistic Activity

Augmented biocontrol action of silica nanoparticles and Pseudomonas fluorescens bioformulant in maize (Zea mays L.)

RSC Advances ◽  
2014 ◽  
Vol 4 (17) ◽  
pp. 8461 ◽  
Author(s):  
Suriyaprabha Rangaraj ◽  
Karunakaran Gopalu ◽  
Prabhu Muthusamy ◽  
Yuvakkumar Rathinam ◽  
Rajendran Venkatachalam ◽  
...  
Keyword(s):  
Zea Mays ◽  
Silica Nanoparticles ◽  
Pseudomonas Fluorescens ◽  
Zea Mays L

Characterization of Azospirillum associated with maize (Zea mays) in France, using biochemical tests and plasmid profiles

1992 ◽  
Vol 38 (8) ◽  
pp. 798-803 ◽  
Author(s):  
Isabelle Penot ◽  
Nathalie Berges ◽  
Christine Guinguene ◽  
Jacques Fages
Keyword(s):  
Zea Mays ◽  
Azospirillum Brasilense ◽  
Zea Mays L ◽  
Specific Method ◽  
Azospirillum Lipoferum ◽  
Biochemical Tests ◽  
Plasmid Profiles ◽  
Clear Differentiation ◽  
Plasmid Profiling

Thirty Azospirillum strains were isolated from the rhizosphere of 13 maize (Zea mays L.) cultivars grown in 14 French soils, using a new specific method, which has been given the name ROSEA. Among these strains 26 were Azospirillum lipoferum and 4 were Azospirillum brasilense. Their characterization was achieved using biochemical tests and plasmid profiles. Biochemical patterns allowed clear differentiation between the two species. A large diversity in carbon source metabolism was found among the Azospirillum sp. strains regardless of their origin. The A. brasilense were much more closely related, and were found in only two of the rhizospheres studied. The 30 plasmid patterns were all different, and the plasmid-profiling technique can therefore be considered as strain specific. All the A. lipoferum harboured a 150-MDa plasmid, while all the A. brasilense harboured a 90 to 100-MDa plasmid. This result reinforces the hypothesis of the presence of such plasmids as an additional criterion for differentiating these two species. Key words: Zea mays, Azospirillum, ROSEA method, biochemical tests, plasmid profiles.

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