Trichoderma asperellum xylanases promote growth and induce resistance in poplar

Guo, Ruiting; Ji, Shidong; Wang, Zhiying; Zhang, Huifang; Wang, Yucheng; Liu, Zhihua

doi:10.1016/j.micres.2021.126767

Cited by 31 publications

(18 citation statements)

References 28 publications

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“…The first is growth promotion: T. asperellum (isolate SM-12F1) can improve the activities of soil enzymes associated with nutrient activation and antioxidant stress [58] and induce plant growth-promoting attributes of 1aminocyclopropane-1-carboxylate deaminase, auxin, and siderophore production [59]. T. asperellum's second important function is induced systemic resistance (ISR) in plants by a mechanism that employs ethylene and jasmonic acid signal transduction pathways [60,61]. The third important function is biocontrol, in which the Trichoderma species reduces the pathogens surrounding the plant roots by competing for nutrients and space (taking advantage of their rapid growth), inhibiting pathogen growth by mycoparasitism and secondary metabolite production [62].…”

Section: Discussionmentioning

confidence: 99%

Trichoderma asperellum Secreted 6-Pentyl-α-Pyrone to Control Magnaporthiopsis maydis, the Maize Late Wilt Disease Agent

Degani

Khatib

Becher

et al. 2021

Biology

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Late wilt disease (LWD) is a destructive vascular disease of maize (Zea mays L.) caused by the fungus Magnaporthiopsis maydis. Restricting the disease, which is a significant threat to commercial production in Israel, Egypt, Spain, India, and other countries, is an urgent need. In the past three years, we scanned nine Trichoderma spp. isolates as biological control candidates against M. maydis. Three of these isolates showed promising results. In vitro assays, seedlings pathogenicity trials, and field experiments all support the bio-control potential of these isolates (or their secretions). Here, a dedicated effort led to the isolation and identification of an active ingredient in the growth medium of Trichoderma asperellum (P1) with antifungal activity against M. maydis. This Trichoderma species is an endophyte isolated from LWD-susceptible maize seeds. From the chloroform extract of this fungal medium, we isolated a powerful (approx. 400 mg/L) active ingredient capable of fully inhibiting M. maydis growth. Additional purification using liquid chromatography–mass spectrometry (LC–MS) and gas chromatography–mass spectrometry (GC–MS) separation steps enabled identifying the active ingredient as 6-Pentyl-α-pyrone. This compound is a potential fungicide with high efficiency against the LWD causal agent.

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Section: Discussionmentioning

confidence: 99%

Trichoderma asperellum Secreted 6-Pentyl-α-Pyrone to Control Magnaporthiopsis maydis, the Maize Late Wilt Disease Agent

Degani

Khatib

Becher

et al. 2021

Biology

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“…As described above, PdPap was treated with F. oxysporum for 0, 6, 12, 24, and 48 h. We selected two defense-associated genes in salicylic acid (SA) signal transduction pathways and four defense-associated genes in jasmonic acid (JA) signal transduction pathways to perform the qRT-PCR analysis (Huang et al, 2015 ; Guo et al, 2021 ). Each experimental group had three biological replicates.…”

Section: Methodsmentioning

confidence: 99%

Transcriptome Analysis Reveals the Important Role of WRKY28 in Fusarium oxysporum Resistance

et al. 2021

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Root rot of Populus davidiana × P. alba var. pyramidalis Louche (Pdpap) is caused by Fusarium oxysporum. We used RNA sequencing to study the molecular mechanisms and response pattern of Pdpap infected by F. oxysporum CFCC86068. We cloned the PdpapWRKY28 transcription factor gene and transformed the recombinant vector pBI121-PdpapWRKY28 into Pdpap. The resistance function of PdpapWRKY28 was verified using physiological and biochemical methods. By means of RNA sequencing, we detected 1,403 differentially expressed genes (DEGs) that are common in the different treatments by F. oxysporum. Furthermore, we found that overexpression of the PdpapWRKY28 gene may significantly improve the resistance of Pdpap plants to F. oxysporum. Our research reveals a key role for PdpapWRKY28 in the resistance response of Pdpap to F. oxysporum. Additionally, our results provide a theoretical basis for in-depth research on resistance breeding to combat root rot.

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“…Furthermore, colonization of this beneficial fungi promotes plant growth and also upgrades the host plants against various abiotic and biotic stresses [7,68]. It balances different phytohormone-dependent pathways among which salicylic acid (SA), jasmonates (JA), ethylene (ET), abscisic acid (ABA), auxin (indole-3-acetic acid: IAA), and gibberellins (GA) are the most relevant-and modulating the levels of growth and defense regulatory proteins [2,11,54,[69][70][71]. Priming facilitates a faster and stronger reaction if the stress recurs.…”

Section: Priming Of Resistance Mechanism In Host Plantsmentioning

confidence: 99%

Trichoderma: A Biofertilizer and a Bio-Fungicide for Sustainable Crop Production

Kubheka¹,

Ziena²

2022

Trichoderma - Technology and Uses

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Trichoderma has been studied widely. It has been found to play a major role in agricultural production. Around the world scientists and farmers have taken advantage of this knowledge. It is reported to improve plant growth of many crops such as tomato, lettuce, maize, beans, cabbage sugarcane and many more crops. There are two broad categories where Trichoderma plays a major role which is its use as a biofertilizer as well as a biofungicide. Its use as a biofertilizer has been aggravated by its ability to produce volatile compounds, ability to solubilize phosphates making them available to the plant. Moreover, farmers use it as a biofertilizer because it improves the uptake of macro and micro nutrients by the plant. As a biofungicide, Trichoderma is not to control many pathogens from various crops. This includes the control of pathogens such as Rhizoctonia, Phytophthora, Rhizoctonia, Sclerotinia, Phythium, Fusarium, Sclerotinia species and Galumannomyces. The mechanisms used by Trichoderma as a biofungicide includes, antibiosis, mycoparasitism, competitive advantage in the rhizosphere as well as priming of the crop self-defense mechanisms. The purpose of this book chapter is to highlight the importance of Trichoderma in agriculture as a biofertilizer and biofungicide.

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Trichoderma asperellum xylanases promote growth and induce resistance in poplar

Cited by 31 publications

References 28 publications

Trichoderma asperellum Secreted 6-Pentyl-α-Pyrone to Control Magnaporthiopsis maydis, the Maize Late Wilt Disease Agent

Trichoderma asperellum Secreted 6-Pentyl-α-Pyrone to Control Magnaporthiopsis maydis, the Maize Late Wilt Disease Agent

Transcriptome Analysis Reveals the Important Role of WRKY28 in Fusarium oxysporum Resistance

Trichoderma: A Biofertilizer and a Bio-Fungicide for Sustainable Crop Production

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