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Induced Systemic Resistance and Promotion of Plant Growth by Bacillus spp.
TLDR
Two products for commercial agriculture have been developed, one aimed mainly at plant growth promotion for transplanted vegetables and one, which has received registration from the U.S. Environmental Protection Agency, for disease protection on soybean.
Bacterial volatiles promote growth in Arabidopsis
TLDR
The demonstration that PGPR strains release different volatile blends and that plant growth is stimulated by differences in these volatile blends establishes an additional function for volatile organic compounds as signaling molecules mediating plant–microbe interactions.
Rhizosphere bacteria help plants tolerate abiotic stress.
TLDR
PGPR might also increase nutrient uptake from soils, thus reducing the need for fertilizers and preventing the accumulation of nitrates and phosphates in agricultural soils, and reduce the effects of water contamination from fertilizer run-off and lead to savings for farmers.
Rhizobacterial volatile emissions regulate auxin homeostasis and cell expansion in Arabidopsis
TLDR
Transcriptional and histochemical data indicate that VOCs from the PGPR strain GB03 trigger growth promotion in Arabidopsis by regulating auxin homeostasis, providing a new paradigm as to how rhizobacteria promote plant growth.
Nonhost resistance: how much do we know?
TLDR
Strong similarities exist between nonhost and gene-for-gene resistance responses but it is still not clear if the same mechanism is involved in producing these resistance responses.
Bacterial Volatiles Induce Systemic Resistance in Arabidopsis1
TLDR
New insight is provided into the role of bacteria VOCs as initiators of defense responses in plants and evidence is provided that the signaling pathway activated by volatiles from GB03 is dependent on ethylene, albeit independent of the salicylic acid or jasmonic acid signaling pathways.
Induced systemic protection against tomato late blight elicited by plant growth-promoting rhizobacteria.
TLDR
Induced protection elicited by both bacilli and pseudomonad PGPR strains was SA-independent but ethylene- and jasmonic acid-dependent, whereas systemic acquired resistance eliciting by the pathogen and induced local resistance by BABA were SA-dependent.
Agrodrench: a novel and effective agroinoculation method for virus-induced gene silencing in roots and diverse Solanaceous species.
TLDR
A novel and simple method of agroinoculation, called 'agrodrench', where soil adjacent to the plant root is drenched with an Agrobacterium suspension carrying the TRV-derived VIGS vectors, which silenced the expression of phytoene desaturase, a 20S proteasome subunit (PB7) or Mg-protoporphyrin chelatase (Chl H) encoding genes in Nicotiana benthamiana.
Glycolate Oxidase Modulates Reactive Oxygen Species–Mediated Signal Transduction during Nonhost Resistance in Nicotiana benthamiana and Arabidopsis[W]
TLDR
It is shown that GOX is an alternative source for the production of H2O2 during both gene-for-gene and nonhost resistance responses and plays a crucial role during both genes from different defense signal transduction cascades.
Galactinol is a signaling component of the induced systemic resistance caused by Pseudomonas chlororaphis O6 root colonization.
TLDR
The CsGolS1-overexpressing transgenic tobacco plants demonstrated constitutive resistance against the pathogens Botrytis cinerea and Erwinia carotovora, and they also showed an increased accumulation in galactinol content.
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