Plant defence induced by <scp>PGPR</scp> against <i>Spodoptera litura</i> in tomato (<i>Solanum lycopersicum</i> L.)

Bano, Asghari; Muqarab, R.

doi:10.1111/plb.12535

Cited by 63 publications

(53 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In our study, this family was the most abundant in the rhizosphere of both plants. With respect to the possible role in the plant tolerance to abiotic stress, several genus of this family have been described for their ability to control of plant pathogen [76], phosphate solubilization, phytohormone production, siderophores production [77,78].…”

Section: Discussionmentioning

confidence: 99%

Fungal and Bacterial Microbiome Associated with the Rhizosphere of Native Plants from the Atacama Desert

et al. 2020

View full text Add to dashboard Cite

The rhizosphere microbiome is key in survival, development, and stress tolerance in plants. Salinity, drought, and extreme temperatures are frequent events in the Atacama Desert, considered the driest in the world. However, little information of the rhizosphere microbiome and its possible contribution to the adaptation and tolerance of plants that inhabit the desert is available. We used a high-throughput Illumina MiSeq sequencing approach to explore the composition, diversity, and functions of fungal and bacterial communities of the rhizosphere of Baccharis scandens and Solanum chilense native plants from the Atacama Desert. Our results showed that the fungal phyla Ascomycota and Basidiomycota and the bacterial phyla Actinobacteria and Proteobacteria were the dominant taxa in the rhizosphere of both plants. The linear discriminant analysis (LDA) effect size (LefSe) of the rhizosphere communities associated with B. scandens showed the genera Penicillium and Arthrobacter were the preferential taxa, whereas the genera Oidiodendron and Nitrospirae was the preferential taxa in S. chilense. Both plant showed similar diversity, richness, and abundance according to Shannon index, observed OTUs, and evenness. Our results indicate that there are no significant differences (p = 0.1) between the fungal and bacterial communities of both plants, however through LefSe, we find taxa associated with each plant species and the PCoA shows a separation between the samples of each species. This study provides knowledge to relate the assembly of the microbiome to the adaptability to drought stress in desert plants.

show abstract

Section: Discussionmentioning

confidence: 99%

Fungal and Bacterial Microbiome Associated with the Rhizosphere of Native Plants from the Atacama Desert

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Bano and Muqarab [48] investigated that the role of the PGPR, P. putida and Rothia sp., used to overcome the loss in tomato yield caused by Spodoptera litura (an insect). An infestation of tomato with S. litura reduced the dry weight of shoots and roots by 46% and 22%, respectively [48]. When surface-sterilized seeds of tomato were inoculated for 48 h with P. putida and Rothia sp., it was found that the effects of S. litura infestation were ameliorated and resulted in 60% and 40% increment in plant biomass and their yield, respectively, over infested plants [48].…”

Section: Mechanism Of Physiological Changes In the Host Plants And mentioning

confidence: 99%

PGPR‐mediated induction of systemic resistance and physiochemical alterations in plants against the pathogens: Current perspectives

et al. 2020

View full text Add to dashboard Cite

Plant growth‐promoting rhizobacteria (PGPR) are diverse groups of plant‐associated microorganisms, which can reduce the severity or incidence of disease during antagonism among bacteria and soil‐borne pathogens, as well as by influencing a systemic resistance to elicit defense response in host plants. An amalgamation of various strains of PGPR has improved the efficacy by enhancing the systemic resistance opposed to various pathogens affecting the crop. Many PGPR used with seed treatment causes structural improvement of the cell wall and physiological/biochemical changes leading to the synthesis of proteins, peptides, and chemicals occupied in plant defense mechanisms. The major determinants of PGPR‐mediated induced systemic resistance (ISR) are lipopolysaccharides, lipopeptides, siderophores, pyocyanin, antibiotics 2,4‐diacetylphoroglucinol, the volatile 2,3‐butanediol, N‐alkylated benzylamine, and iron‐regulated compounds. Many PGPR inoculants have been commercialized and these inoculants consequently aid in the improvement of crop growth yield and provide effective reinforcement to the crop from disease, whereas other inoculants are used as biofertilizers for native as well as crops growing at diverse extreme habitat and exhibit multifunctional plant growth‐promoting attributes. A number of applications of PGPR formulation are needed to maintain the resistance levels in crop plants. Several microarray‐based studies have been done to identify the genes, which are associated with PGPR‐induced systemic resistance. Identification of these genes associated with ISR‐mediating disease suppression and biochemical changes in the crop plant is one of the essential steps in understanding the disease resistance mechanisms in crops. Therefore, in this review, we discuss the PGPR‐mediated innovative methods, focusing on the mode of action of compounds authorized that may be significant in the development contributing to enhance plant growth, disease resistance, and serve as an efficient bioinoculants for sustainable agriculture. The review also highlights current research progress in this field with a special emphasis on challenges, limitations, and their environmental and economic advantages.

show abstract

“…Plant Growth Promoting Bacteria (PGPB) are beneficial strains naturally present in the rhizosphere of plants contributing to plant health. As it has been demonstrated certain strains trigger expression of some plant genes, defense related genes among others, enhancing plant defense metabolism; so when the pathogen tries to invade the plant, it is already prepared and not dramatically infected [14,15]. Therefore, PGPB appear as an alternative to chemical pesticides as well as tools to study plant metabolism.…”

Section: Introductionmentioning

confidence: 99%

Elicitation with Bacillus QV15 reveals a pivotal role of F3H on flavonoid metabolism improving adaptation to biotic stress in blackberry

et al. 2020

View full text Add to dashboard Cite

The aim of this study is to determine the involvement of the flavonol-anthocyanin pathway on plant adaptation to biotic stress using the B.amyloliquefaciens QV15 to trigger blackberry metabolism and identify target genes to improve plant fitness and fruit quality. To achieve this goal, field-grown blackberries were root-inoculated with QV15 along its growth cycle. At fruiting, a transcriptomic analysis by RNA-Seq was performed on leaves and fruits of treated and non-treated field-grown blackberries after a sustained mildew outbreak; expression of the regulating and core genes of the Flavonol-Anthocyanin pathway were analysed by qPCR and metabolomic profiles by UHPLC/ESI-qTOF-MS; plant protection was found to be up to 88%. Overexpression of step-controlling genes in leaves and fruits, associated to lower concentration of flavonols and anthocyanins in QV15-treated plants, together with a higher protection suggest a phytoanticipin role for flavonols in blackberry; kempferol-3-Orutinoside concentration was strikingly high. Overexpression of RuF3H (Flavonol-3-hidroxylase) suggests a pivotal role in the coordination of committing steps in this pathway, controlling carbon flux towards the different sinks. Furthermore, this C demand is supported by an activation of the photosynthetic machinery, and boosted by a coordinated control of ROS into a sub-lethal range, and associated to enhanced protection to biotic stress.

show abstract

Plant defence induced by PGPR against Spodoptera litura in tomato (Solanum lycopersicum L.)

Cited by 63 publications

References 33 publications

Fungal and Bacterial Microbiome Associated with the Rhizosphere of Native Plants from the Atacama Desert

Fungal and Bacterial Microbiome Associated with the Rhizosphere of Native Plants from the Atacama Desert

PGPR‐mediated induction of systemic resistance and physiochemical alterations in plants against the pathogens: Current perspectives

Elicitation with Bacillus QV15 reveals a pivotal role of F3H on flavonoid metabolism improving adaptation to biotic stress in blackberry

Contact Info

Product

Resources

About