Paecilomyces variotii extracts (ZNC) enhance plant immunity and promote plant growth

Lu, Chongchong; Liu, Haifeng; Jiang, Depeng; Wang, Lulu; Jiang, Yanke; Tang, Shuya; Hou, Xuwen; Han, Xinyi; Liu, Zhiguang; Zhang, Chu; Ding, Xinhua

doi:10.1007/s11104-019-04130-w

Cited by 60 publications

(68 citation statements)

References 63 publications

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“…Furthermore, SA was found in numerous plants (Nicotiana tabacum, tomato, Arabidopsis thaliana, Orange), and could induce RNA silencing-related genes and plant resistance to RNA pathogens [28,75]. The previous report showed that ZNC activated the salicylic acid biosynthesis and signaling pathways in Arabidopsis thaliana [9]. In the support information, we found that ZNC also enhance N.benthamiana resistance to TMV.…”

Section: Discussionsupporting

confidence: 66%

“…However, the number of biocontrol agents used in agriculture is very small. ZNC, which is a commercialized product, is the crude extract of a P. variotii strain, which is isolated from the roots of plants [9]. ZNC has been used on crops, vegetables and fruit trees widely, and the molecular mechanisms of plant growth promotion and bacterial disease protection have been evaluated recently.…”

Section: Discussionmentioning

confidence: 99%

“…ZNC functions as an elicitor not only protecting crops from Pseudomonas syringae pv. tomato (Pst) DC3000 but also promoting crop growth [9]. In this study, we found that ZNC induces resistance to viruses at very low concentration, and the antivirus mechanism was studied.…”

Section: Backgroudmentioning

confidence: 96%

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Ultrahigh-activity immune inducer from Endophytic Fungi induces tobacco resistance to virus by SA pathway and RNA silencing

et al. 2020

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Background: Plant viruses cause severe economic losses in agricultural production. An ultrahigh activity plant immune inducer (i.e., ZhiNengCong, ZNC) was extracted from endophytic fungi, and it could promote plant growth and enhance resistance to bacteria. However, the antiviral function has not been studied. Our study aims to evaluate the antiviral molecular mechanisms of ZNC in tobacco. Results: Here, we used Potato X virus (PVX), wild-type tobacco and NahG transgenic tobacco as materials to study the resistance of ZNC to virus. ZNC exhibited a high activity in enhancing resistance to viruses and showed optimal use concentration at 100-150 ng/mL. ZNC also induced reactive oxygen species accumulation, increased salicylic acid (SA) content by upregulating the expression of phenylalanine ammonia lyase (PAL) gene and activated SA signaling pathway. We generated transcriptome profiles from ZNC-treated seedlings using RNA sequencing. The first GO term in biological process was positive regulation of post-transcriptional gene silencing, and the subsequent results showed that ZNC promoted RNA silencing. ZNC-sprayed wild-type leaves showed decreased infection areas, whereas ZNC failed to induce a protective effect against PVX in NahG leaves. Conclusion: All results indicate that ZNC is an ultrahigh-activity immune inducer, and it could enhance tobacco resistance to PVX at low concentration by positively regulating the RNA silencing via SA pathway. The antiviral mechanism of ZNC was first revealed in this study, and this study provides a new antiviral bioagent.

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Section: Discussionsupporting

confidence: 66%

Section: Discussionmentioning

confidence: 99%

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Ultrahigh-activity immune inducer from Endophytic Fungi induces tobacco resistance to virus by SA pathway and RNA silencing

et al. 2020

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“…Very few references describe the application of P. variotii as a plant-growth promoter. The biocontrol agent ZhiNengCong (ZNC), which is an extract of P. variotii, is used in China [21]. ZNC is a…”

Section: Introductionmentioning

confidence: 99%

Paecilomyces variotii as A Plant-Growth Promoter in Horticulture

et al. 2020

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In the present study, P. variotii, an endophytic fungus isolated from plant roots from the Cabo de Gata Natural Park (Parque Nacional Cabo de Gata—Spain), was tested to determine the effect on the growth promotion of tomato and pepper seeds and seedlings. For these purposes, germination trials in a laboratory and two experiments in a commercial nursery and greenhouse conditions were performed. The P. variotii isolate has shown a high ability to produce siderophores and IAA, but low ability to solubilize P. High values for germination percentage, seedling vigor, root and shoot length were obtained by P. variotii on tomato and pepper against control. P. variotii applications resulted in improved most of the growth parameters evaluated, for both horticultural crops, with the best results in the development of pepper seedlings. The application of a higher dose of P. variotii improved most of the morphological parameters and the Dickson quality index (DQI) value in tomato in seedlings and plants. The establishment of the endophytic fungus at the root enabled its biostimulant effects to persist after transplantation without any additional application. Few studies have analyzed this species as a biostimulant. The positive results from the tests showed its high potential. The application of this isolate can be of enormous benefit to horticultural crops for its high reproductive and establishment capacity.

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“…Some indigenous microorganisms of contaminated soil systems also have the capability of degrading soil contaminants and thus are frequently used for bioremediation purposes (Dubey et al, 2020). The metabolism of beneficial microorganisms can provide a source of materials for plants, including nitrogen, phosphorus, potassium and other elements, to improve soil fertility and promote plant growth and health (Lu et al, 2019). For example, soil microorganisms can convert inert atmospheric nitrogen into ionic nitrogen, which is directly absorbed by plants through a series of chemical processes and ultimately provides more sufficient nutrients for plant growth than other forms (Jahan et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

High-Throughput Customization of Plant Microbiomes for Sustainable Agriculture

Yin

et al. 2020

Front. Plant Sci.

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Soil microorganisms can form a stable dynamic system with plant root systems. The composition of the soil microorganism community is related to the growth and stress resistance of plants; in turn, soil microorganisms are also regulated by plant genotypes and root exudates. Therefore, research on how to identify microorganisms that are beneficial or harmful to plants, study the interaction between microorganisms and plants, and form stable microbial communities for better plant growth plays an important role in sustainable agriculture. It is of great significance to identify and analyze rhizosphere microorganisms and plant endophytes through high-throughput methods, especially to analyze which microorganisms are beneficial to plants, which are harmful to plants, and which are opportunistic pathogens. This review provides a theoretical basis and outlook for the utilization of beneficial microbes in sustainable agriculture.

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Paecilomyces variotii extracts (ZNC) enhance plant immunity and promote plant growth

Cited by 60 publications

References 63 publications

Ultrahigh-activity immune inducer from Endophytic Fungi induces tobacco resistance to virus by SA pathway and RNA silencing

Ultrahigh-activity immune inducer from Endophytic Fungi induces tobacco resistance to virus by SA pathway and RNA silencing

Paecilomyces variotii as A Plant-Growth Promoter in Horticulture

High-Throughput Customization of Plant Microbiomes for Sustainable Agriculture

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