Chemical signaling involved in plant–microbe interactions

Chagas, Fernanda O.; Pessotti, Rita de Cássia; Caraballo‐Rodríguez, Andrés Mauricio; Pupo, Mônica Tallarico

doi:10.1039/c7cs00343a

Cited by 178 publications

(134 citation statements)

References 726 publications

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“…The interacting microbe alters the certain specific host hormonal level to successfully colonize in the host tissues (Chagas et al, 2018). Such altered hormone level produced a cross talk with other hormones which in turn produce a HR in host (Bürger and Chory, 2019).…”

Section: Resultsmentioning

confidence: 99%

Phytohormonal cross-talk modulate Bipolaris sorokiniana (Scc.)interaction with Zea mays

Yousaf

Hussain

Hamayun

et al. 2019

Preprint

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16Besides acting as growth inducing molecule, Gibberellin (GA 3 ) also confers the compatibility 17 of microbial interactions with host. We inoculated 11 days old Z. mays seedlings grown under 18 hydroponic conditions and high GA 3 levels with Bipolaris sorokiniana (BIPOL) at the spore 19 density (SD) of OD 0.6 . The high level of GA 3 negatively affected the growth of the seedlings, 20 accompanied by the high level of stress deducing secondary metabolites (proline, total 21 flavanoids, phenylpropanoids, and glucosinolides). Moreover, high level of GA 3 produced a 22 hypersensitive response (HR) in the seedlings. The HR developed cross talks with IAA and 23 trans-zeatins and triggered higher production of hypersensitive inducing biomolecules. The 24 other HR co-related biological processes were demonstrated by high phytoalexins level and 25 high protease activities. Such activities ultimately inhibited the colonization of BIPOL on the 26 roots of maize seedlings. The products of the genes expressed at high GA 3 also conferred the 27 deterrence of BIPOL colonization at SD = OD 0.6 . Intriguingly, when we inhibited GA 3 28 biosynthesis in the seedlings with aerially sprayed uniconizole, prior to BIPOL treatment, the 29 BIPOL colonized and subsequently promoted the seedling growth. This low level of GA 3 30 after BIPOL treatment checked the high level of secondary metabolites and hypersensitivity 31 inducing molecules. The results, thus suggested that the aforementioned processes only 32 happened in the BIPOL at SD (OD 0.6 ), whereas the SD at lower levels (OD 0.2 or OD 0.4 ) 33 neither promoted the growth of uniconizole pre-treated seedlings nor produced HR in control 34 seedlings of maize plant.35

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Section: Resultsmentioning

confidence: 99%

Phytohormonal cross-talk modulate Bipolaris sorokiniana (Scc.)interaction with Zea mays

Yousaf

Hussain

Hamayun

et al. 2019

Preprint

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“…Given their potential roles of sensing environmental stimuli, pre-contact DEGs associated with pathways related to cell surface construction and signal transduction, or processes involving receptor kinases and transcription factors (TFs) were of particular interest 4,5 . Comparing to published datasets, we identified several pre-contact DEGs involved in fungal morphogenesis and development 18–23 .…”

Section: Resultsmentioning

confidence: 99%

“…rhizobia) 2 or fungal (e.g. arbuscular mycorrhiza) 3 organisms start with the arrival of biologically active compounds such as flavonoids, lipochitooligosaccharides and strigolactones secreted either by plant roots or microorganisms 4 .…”

Section: Introductionmentioning

confidence: 99%

Novel regulators of nitric oxide signaling triggered by host perception in a plant pathogen

Ding

Gardiner

Xiao

et al. 2019

Preprint

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AbstractThe rhizosphere interaction between plant roots or pathogenic microbes is initiated by mutual exchange of signals. However, how soil pathogens sense host signals is largely unknown. Here, we studied early molecular events associated with host recognition in Fusarium graminearum, an economically important fungal pathogen that can infect both roots and heads of cereal crops. We found that host-sensing prior to physical contact with plant roots radically alters the transcriptome and triggers nitric oxide (NO) production in F. graminearum. We identified an ankyrin-repeat domain containing protein (FgANK1) required for host-mediated NO production and virulence in F. graminearum. In the absence of host plant, FgANK1 resides in the cytoplasm. In response to host signals, FgANK1 translocates to the nucleus and interacts with a zinc finger transcription factor (FgZC1), also required for NO production and virulence in F. graminearum. Our results reveal new mechanistic insights into host-recognition strategies employed by soil pathogens.

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“…Plant growth promoting bacterium can influence directly or indirectly the general morphology of plants, as they have the ability to colonize tissues and different mechanisms of action (Pandya et al, 2013;Chagas et al, 2018). They can act on iron sequestration and phytoremediation (Karami & Shamsuddin, 2010), phosphorus solubilization, atmospheric nitrogen fixation (Santi et al, 2013;Ahemad & Kibret, 2014), hormone production, organic siderophore compounds (Bhattacharyya & Jha, 2012), systemic resistance to pathogens, tolerance to abiotic and biotic stress (Etesami & Maheshwari, 2018;Shameer & Prasad, 2018).…”

Section: Application Of Plant Growth Promoting Microorganismsmentioning

confidence: 99%

Humic Substances and Efficient Microorganisms: Elicitation of Medicinal Plants—A Review

Pereira¹,

Morais²,

Marques³

et al. 2019

JAS

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In function of the green revolution the indiscriminate use of agrochemicals and pesticides in agriculture has been also shown in the production of medicinal plants, resulting in the increase of productivity but with high residual contamination and low rates in the production of secondary metabolites responsible for the biological and pharmacological activity in vegetable drugs. In another hand, new techniques of elicitation has been applied to stimulate the medicinal plants production through the organic and agroecological management, contributing for the increase of performance, quality and production. In this context, it is aimed with this review to present such as the humic substances: fulvic acid, humic acid and efficient microorganisms which influence and help the ontogeny and the secondary metabolites production of medicinal plants. The reviewed articles show that the use of fulvic acid, humic acid and efficient microorganisms in the production of medicinal plants contributes on the increase of biosynthesis, secondary metabolites production such as coumarins, alkaloids, phenylpropanoids and essential oils, as well as the increase of nutrients absorption, growth and development of species.

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Chemical signaling involved in plant–microbe interactions

Cited by 178 publications

References 726 publications

Phytohormonal cross-talk modulate Bipolaris sorokiniana (Scc.)interaction with Zea mays

Phytohormonal cross-talk modulate Bipolaris sorokiniana (Scc.)interaction with Zea mays

Novel regulators of nitric oxide signaling triggered by host perception in a plant pathogen

Humic Substances and Efficient Microorganisms: Elicitation of Medicinal Plants—A Review

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