Plant Secondary Metabolites as a Tool to Investigate Biotic Stress Tolerance in Plants: A Review

Jha, Yachana; Mohamed, Heba I.

doi:10.1007/s10343-022-00669-4

Cited by 45 publications

(15 citation statements)

References 149 publications

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“…The extract from the sandy compost showed the highest concentration and variety of metabolites of interest, indicating an induction of metabolites under biotic stress. This illustrates the tolerance and adaptation capacity of the plant, which directly depends on the diversity of secondary metabolites produced, as well as the induction of their metabolic responses, which coincides with the increase in owering (Jha & Mohamed, 2022).…”

Section: Constitution Of Metabolitesmentioning

confidence: 75%

“…Sandy and arid soils typically cause high biotic and abiotic stress in plants, altering the conformation of their secondary metabolites as a defense mechanism to adapt to the environment. This includes terpenes, phenols, and complex volatile compounds(Jha & Mohamed, 2022). During the early stages of plant growth, the high concentration of silicon in the sand strengthens and improves plant tolerance by modulating stress, stimulating rapid development, and maintaining plant vitality(Ahanger et al, 2020).…”

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confidence: 99%

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Biodynamic Substrate for the Optimization of Biomass and Constitution of Metabolites of Plectranthus Ornatus

Suárez-Barreiro¹,

Romero²,

Velásquez³

et al. 2023

Preprint

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The Plectranthus ornatus Codd. (also known as acetaminofem and boldo) has been found to have various pharmaceutical uses, including insecticidal properties. The metabolite composition of P. ornatus varies depending on soil and climatic conditions. The objective of this study was to optimize the growth and metabolite composition of P. ornatus (N = 72) through biodynamic substrate cultivation in Machetá-Cundinamarca, Colombia, located at 1850 masl, over a period of 60 days. Four different substrates were tested: sandy, vermicompost, horse manure, and biodynamic substrate, with the aim of identifying significant differences that would indicate optimization.The study evaluated root growth, plant material growth, and relative metabolite amounts (%) present in an ethanolic extract obtained under the same conditions. Additionally, the volatile fraction was identified using HS-SPME/GC-MS, and soil analysis was performed. The results showed that the plants grown in the biodynamic substrate had the highest growth in plant material and root (p < 0.05), while the plants grown in the sandy substrate had the highest concentration of volatile fraction in the extract. Furthermore, the plants grown in the biodynamic substrate exhibited greater vitality, and the physicochemical/microbiological composition of this substrate at the end of the trial showed a higher concentration of nutrients required for aromatics cultivation and a higher concentration of nitrogen-fixing bacteria.In conclusion, this study suggests that in the long term, the biodynamic substrate may be more efficient in obtaining metabolites of pharmaceutical interest, and a combination with sandy substrate should be considered for optimal results.

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Section: Constitution Of Metabolitesmentioning

confidence: 75%

mentioning

confidence: 99%

Biodynamic Substrate for the Optimization of Biomass and Constitution of Metabolites of Plectranthus Ornatus

Suárez-Barreiro¹,

Romero²,

Velásquez³

et al. 2023

Preprint

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“…The results suggested that the transcript levels of a number of genes in primary and secondary metabolic pathways were higher in mlo8 CR1 , mlo11 CR1 , and mlo8 CR1 mlo11 CR1 plants relative to control after pathogen inoculation; these metabolites included the aromatic amino acid l -phenylalanine, cinnamic acid, and phenylpropanoid. A diversity of secondary metabolites function in defense against biotic stress in plants [ 42 , 43 ]. Aromatic amino acids (tryptophan, phenylalanine, and tyrosine) are the branch points where primary metabolites may enter secondary metabolic pathways that function in protecting plants from biotic stresses [ 44 , 45 ].…”

Section: Discussionmentioning

confidence: 99%

CsMLO8/11 are required for full susceptibility of cucumber stem to powdery mildew and interact with CsCRK2 and CsRbohD

Dong,

Liu,

Han

et al. 2023

Horticulture Research

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Powdery mildew (PM) is one of the most destructive diseases that threaten cucumber production globally. Efficient breeding of novel PM-resistant cultivars, will require a robust understanding of the molecular mechanisms for cucumber resistance against PM. Using a genome wide association study (GWAS), we detected a locus significantly correlated with PM resistance in cucumber stem, pm-s5.1. A 1,449-bp insertion in the CsMLO8 coding region at the pm-s5.1 locus results in enhanced stem PM resistance. Knockout mutants of CsMLO8 and CsMLO11 generated by CRISPR/Cas9 both showed improved PM resistance in the stem, hypocotyl and leaves, and the double mutant mlo8mlo11 displayed even stronger resistance. We found that reactive oxygen species (ROS) accumulation was higher in the stem of these mutants. Protein interaction assays suggested that CsMLO8 and CsMLO11 could physically interact with CsRbohD and CsCRK2, respectively. Further, we showed that CsMLO8 and CsCRK2 competitively interact with the C-terminus of CsRbohD to affect the CsCRK2-CsRbohD module-mediated ROS production during PM defense. These findings provide new insights into the understanding of CsMLO proteins during PM defense responses.

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“…Furthermore, the treatment of the invasion of Talaromyces funiculosus promoted the accumulation of callose on the external layer of C. capsici seedlings. In the phenylalanine or tyrosine metabolic pathway, lignin is produced in plant cells, which carries out the potential activity as a barrier against phytopathogens [ 88 ]. It activates defense mechanisms in plants after the phytopathogen has invaded through the accumulation of lignin on the wall, especially at the point of phytopathogen invasion.…”

Section: Microbial Communities’ Beneficial Association In the Rhizosp...mentioning

confidence: 99%

Fungi That Promote Plant Growth in the Rhizosphere Boost Crop Growth

Adedayo

Babalola

2023

JoF

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The fungi species dwelling in the rhizosphere of crop plants, revealing functions that endeavor sustainability of the plants, are commonly referred to as ‘plant-growth-promoting fungi’ (PGPF). They are biotic inducers that provide benefits and carry out important functions in agricultural sustainability. The problem encountered in the agricultural system nowadays is how to meet population demand based on crop yield and protection without putting the environment and human and animal health at risk based on crop production. PGPF including Trichoderma spp., Gliocladium virens, Penicillium digitatum, Aspergillus flavus, Actinomucor elegans, Podospora bulbillosa, Arbuscular mycorrhizal fungi, etc., have proven their ecofriendly nature to ameliorate the production of crops by improving the growth of the shoots and roots of crop plants, the germination of seeds, the production of chlorophyll for photosynthesis, and the abundant production of crops. PGPF’s potential mode of action is as follows: the mineralization of the major and minor elements required to support plants’ growth and productivity. In addition, PGPF produce phytohormones, induced resistance, and defense-related enzymes to inhibit or eradicate the invasion of pathogenic microbes, in other words, to help the plants while encountering stress. This review portrays the potential of PGPF as an effective bioagent to facilitate and promote crop production, plant growth, resistance to disease invasion, and various abiotic stresses.

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Plant Secondary Metabolites as a Tool to Investigate Biotic Stress Tolerance in Plants: A Review

Cited by 45 publications

References 149 publications

Biodynamic Substrate for the Optimization of Biomass and Constitution of Metabolites of Plectranthus Ornatus

Biodynamic Substrate for the Optimization of Biomass and Constitution of Metabolites of Plectranthus Ornatus

CsMLO8/11 are required for full susceptibility of cucumber stem to powdery mildew and interact with CsCRK2 and CsRbohD

Fungi That Promote Plant Growth in the Rhizosphere Boost Crop Growth

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