Current trends in management of bacterial pathogens infecting plants

Sharma, Aditi; Gupta, A. K.; Devi, Banita

doi:10.1007/s10482-023-01809-0

Cited by 13 publications

(4 citation statements)

References 202 publications

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“…For example, Erwinia amylovora causing fire blight disease causing necrosis in apples, pears, and rosaceous plants was identified in 1880 for the first time [3]. Among bacteria the majority of the plant pathogens are gram-negative for example, Pseudomonas syringae, Pseudomonas cichorii, Agrobacterium tumefaciens, Xanthomonas campestris, X. oryzae [4].…”

Section: Introductionmentioning

confidence: 99%

A Comparative Genomic Analysis of Georgenia sps. for Mining of LysR Transcriptional Regulator Sequences

Oza,

Patel,

Thaker

2024

Int J Bioinfor Intell Comput

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Georgenia is a genus belonging to the actinomycetes group. The genera comprise only 33 poorly characterized species with reference genomes of 10 distinct species. However, none of the species is well characterized for their genome characteristics. Our laboratory isolate from tomato plant leaf was identified and sequenced for identification and found to be Georgenia sp. Later genomic analysis revealed many functional genes having characteristic functions to be analysed. The source of isolation raised the possibility of having functional genes to enhance senescence or having plant pathogenic activity by Georgenia sp. SUBG003. To explore in silico presence of these genes or gene pools genomic islands were identified and analysed for our isolate and other 10 reference genomes of the Georgenia genus. Genomic islands were further explored for transcription regulators and finally, LysR transcriptional regulator sequences were extracted and a phylogeny among sequences was built from multiple sequence alignment.

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Section: Introductionmentioning

confidence: 99%

A Comparative Genomic Analysis of Georgenia sps. for Mining of LysR Transcriptional Regulator Sequences

Oza,

Patel,

Thaker

2024

Int J Bioinfor Intell Comput

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“…Nanotechnology, recognized as the first of the “Key Enabling Technologies” by the European Commission in Horizon 2020, seems to meet this need (Xu et al 2022 ). In fact, in the recent decade, nanotechnology and nanomaterials have received considerable attention in the agriculture field (Prasad et al 2017 ; Saritha et al 2022 ), plant bacterial disease protection included (Sundin et al 2016 ; Elmer and White 2018 ; Balestra and Fortunati 2022 ; Sharma et al 2022 , 2023 ).…”

Section: Introductionmentioning

confidence: 99%

Combat phytopathogenic bacteria employing Argirium-SUNCs: limits and perspectives

Orfei,

Moretti,

Scian

et al. 2024

Appl Microbiol Biotechnol

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Bacterial plant diseases are difficult to control as the durability of deployed control measures is thwarted by continuous and rapid changing of bacterial populations. Although application of copper compounds to plants is the most widespread and inexpensive control measure, it is often partially efficacious for the frequent appearance of copper-resistant bacterial strains and it is raising concerns for the harmful effects of copper on environment and human health. Consequently, European Community included copper compounds in the list of substances candidates for substitution. Nanotechnologies and the application of nanoparticles seem to respond to the need to find new very effective and durable measures. We believe that Argirium-SUNCs®, silver ultra nanoclusters with an average size of 1.79 nm and characterized by rare oxidative states (Ag2+/3+), represent a valid candidate as a nano-bactericide in the control of plant bacterial diseases. Respect to the many silver nanoparticles described in the literature, Argirium-SUNCs have many strengths due to the reproducibility of the synthesis method, the purity and the stability of the preparation, the very strong (less than 1 ppm) antimicrobial, and anti-biofilm activities. In this mini-review, we provide information on this nanomaterial and on the possible application in agriculture. Key points • Argirium-SUNCs have strong antimicrobial activities against phytopathogenic bacteria. • Argirium-SUNCs are a possible plant protection product. • Argirium-SUNCs protect tomato plants against bacterial speck disease. Graphical Abstract

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“…During the infection process, P. syringae relies on an arsenal of secreted virulence factors, such as secretion systems, quorum sensing (QS), production of phytotoxins (coronatine, syringomycin…), hormones, exopolysaccharides (EPS), siderophores etc. (Melotto & Kunkel, 2013;Sharma et al, 2023). P. syringae pathogenesis is predominantly mediated by the type III secretion system (T3SS), a highly conserved needle-like specialized protein secretion machinery, found in numerous gram-negative bacterial pathogens affecting plants and animals.…”

Section: Introductionmentioning

confidence: 99%

Some like it hot: efficiency of the type III secretion system and activation of plant defenses have multiple thermosensitive behaviors in thePseudomonas syringaecomplex

Caullireau,

Danzi,

Tempo

et al. 2024

Preprint

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ThePseudomonas syringaespecies complex is a very important plant pathogenic bacterium, causing damage and economic losses on many crops. Research efforts for the understanding of the determinants of the host-range of a given strain are considerable. Recently, we showed that the inability of aP. syringaepv.actinidiaestrain to trigger ETI inA. thalianais due to an inefficient T3SS and not to the absence of a recognized effector. In this context, we compared severalP. syringaestrains belonging to different phylogroups and carrying the same plasmid-born avirulence gene for their ability to induce an HR inA. thalianaCol-0, as a marker of T3SS efficiency.PtoDC3000AvrBandPmaM6AvrBconsistently triggered a strong HR while other strains induced it at different intensities significantly depending on temperature. Both behaviors of low and warm temperature-dependency for T3SS efficiency were observed among thermosensitive strains, irrespective of theirin-vitrogrowth optimum. Surprisingly, differences were also observed among quasi-clonal strains. These results reveal a strongly strain-specific regulatory role of temperature in effector injection and reinforce the notion that the presence/absence of effectors is not sufficient to predict the outcome of plant-bacteria interactions. Moreover, this work highlights the necessity to study bacterial virulence in a broader set of strains insofar asPtoDC3000 is a reliable model strain but not representative of theP. syringaecomplex.

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Current trends in management of bacterial pathogens infecting plants

Cited by 13 publications

References 202 publications

A Comparative Genomic Analysis of Georgenia sps. for Mining of LysR Transcriptional Regulator Sequences

A Comparative Genomic Analysis of Georgenia sps. for Mining of LysR Transcriptional Regulator Sequences

Combat phytopathogenic bacteria employing Argirium-SUNCs: limits and perspectives

Some like it hot: efficiency of the type III secretion system and activation of plant defenses have multiple thermosensitive behaviors in thePseudomonas syringaecomplex

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