Effects of indole derivatives from Purpureocillium lilacinum in controlling tobacco mosaic virus

Sun, Yubo; Wu, Hao; Zhou, Wenning; Yuan, Zhichun; Hao, Jianjun; Liu, Xili; Han, Lirong

doi:10.1016/j.pestbp.2022.105077

Cited by 8 publications

(5 citation statements)

References 43 publications

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“…In addition, 25 also improves (PAL) activity and transcription levels of isochorismate (ICS) and avrPphB susceptible 3 (PBS3) to facilitate SA accumulation. But 26 only mediates SA accumulation through the PAL pathway, triggering systemic acquired resistance in plants (SAR) (Sun et al, 2022). A class of compound 27 (Figure 5) reported by Wang et al was also able to induce SA and PR2 expression and improve plant resistance to TMV by activating reactive oxygen species and antioxidant levels (Wang and Song, 2020).…”

Section: Biological Stress Resistancementioning

confidence: 97%

“…In addition, 25 also improves ( PAL ) activity and transcription levels of isochorismate ( ICS ) and avrPphB susceptible 3 ( PBS3 ) to facilitate SA accumulation. But 26 only mediates SA accumulation through the PAL pathway, triggering systemic acquired resistance in plants (SAR) ( Sun et al., 2022 ). A class of compound 27 ( Figure 5 ) reported by Wang et al.…”

Section: Biological Stress Resistancementioning

confidence: 99%

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The role of indole derivative in the growth of plants: A review

et al. 2023

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Indole compounds with their unique properties of mimicking peptide structures and reversible binding to enzymes are of great exploitative value in the regulation of plant growth. They stimulate root and fruit formation and activate the plant’s immune system against biotic and abiotic factors harmful to the plant. Analysis of target recognition, receptor recognition, key activation sites and activation mechanisms of indoles in plant to enhance crop growth or disease resistance is a crucial step for further developing compounds as plant growth regulators and immune inducers. Therefore, this review focused on the mechanism of action of indoles in regulating plant growth and enhancing plant resistance to biotic and abiotic stresses.

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Section: Biological Stress Resistancementioning

confidence: 97%

“…In addition, 25 also improves ( PAL ) activity and transcription levels of isochorismate ( ICS ) and avrPphB susceptible 3 ( PBS3 ) to facilitate SA accumulation. But 26 only mediates SA accumulation through the PAL pathway, triggering systemic acquired resistance in plants (SAR) ( Sun et al., 2022 ). A class of compound 27 ( Figure 5 ) reported by Wang et al.…”

Section: Biological Stress Resistancementioning

confidence: 99%

The role of indole derivative in the growth of plants: A review

et al. 2023

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“…Furthermore, it induces overexpression of pathogenesis-related (PR) proteins and upregulation of salicylic acid (SA) biosynthesis genes, which are essential for building systemic acquired resistance (SAR) in plants. This heightened resistance allows the plant to be be er equipped to withstand future a acks [58]. These findings present promising possibilities for employing this fungus to boost plant resilience, with the ultimate goal of decreasing the demand for pesticides and fungicides as well as diminishing the reliance on plant varieties resistant to viruses.…”

Section: Nematode Controlmentioning

confidence: 99%

<i>Purpureocillum lilacinum</i> Plant Growth-Promoting Fungi

Rigobelo,

Nicodemo,

Babalola

et al. 2024

Preprint

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Plants support numerous microorganisms within their tissues and the rhizosphere, and these microorganisms, known as the microbiota, can influence plant growth and health. Up to 40% of a plant's photosynthetic metabolism may be invested in the rhizosphere. The microbiota is considered an extra genome that can be modulated to meet plant needs. Researchers have identified a set of genes from these microorganisms, known as the microbiome, which can be manipulated to enhance plant growth and health, improve nutrient absorption, reduce the need for chemical fertilizers, increase resistance to pathogens and pests, and increase stress tolerance. In particular, fungi exhibit large genetic and metabolic diversity and are often used to promote plant growth. For example, the fungus Purpureocillum lilacinum has been employed primarily as a biocontrol agent to manage nematodes, but some studies have suggested that it may also promote plant growth by increasing the efficiency of the plant to absorb nutrients from the soil and provide phytohormones to plants. Therefore, the current review aims to summarize the existing literature on the use of this fungus in agriculture as nematodes control and discuss its potential as a plant growth promoter.

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“…Disease was evaluated after 3 days. 38,39 A TMV enzyme-linked immunosorbent assay (ELISA) kit (Quanzhou Ruixin Biological Technology) was used to evaluate the TMV content in Nicotiana tabacum K326. First, different concentrations of A 5 (500, 300, or 100 ⊘g mL −1 ) were separately sprayed onto the lower leaves of the plant.…”

Section: Biological Assaymentioning

confidence: 99%

Novel cinnamic acid derivatives as a versatile tool for developing agrochemicals for controlling plant virus and bacterial diseases by enhancing plant defense responses

Yang

Liu

et al. 2023

Pest Management Science

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BACKGROUND Plant pathogens have led to large yield and quality losses in crops worldwide. The discovery and study of novel agrochemical alternatives based on the chemical modification of bioactive natural products is a highly efficient approach. Here, two series of novel cinnamic acid derivatives incorporating diverse building blocks with alternative linking patterns were designed and synthesized to identify their antiviral capacity and antibacterial activity. RESULTS The bioassay results demonstrated that most cinnamic acid derivatives had excellent antiviral competence toward tobacco mosaic virus (TMV) in vivo, especially compound A5 (median effective concentration [EC50] = 287.7 μg mL−1), which had a notable protective effect against TMV when compared with the commercial virucide ribavirin (EC50 = 622.0 μg mL−1). In addition, compound A17 had a protective efficiency of 84.3% at 200 μg mL−1 against Xac in plants. Given these outstanding results, the engineered title compounds could be regarded as promising leads for controlling plant virus and bacterial diseases. Preliminary mechanistic studies suggest that compound A5 could enhance the host's defense responses by increasing the activity of defense enzymes and upregulating defense genes, thereby suppressing phytopathogen invasion. CONCLUSION This research lays a foundation for the practical application of cinnamic acid derivatives containing diverse building blocks with alternative linking patterns in pesticide exploration. © 2023 Society of Chemical Industry.

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Effects of indole derivatives from Purpureocillium lilacinum in controlling tobacco mosaic virus

Cited by 8 publications

References 43 publications

The role of indole derivative in the growth of plants: A review

The role of indole derivative in the growth of plants: A review

<i>Purpureocillum lilacinum</i> Plant Growth-Promoting Fungi

Novel cinnamic acid derivatives as a versatile tool for developing agrochemicals for controlling plant virus and bacterial diseases by enhancing plant defense responses

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