Chapter 8 Interactions Between Nonpathogenic Fungi and Plants

Trillas, M.I.; Segarra, Guillem

doi:10.1016/s0065-2296(09)51008-7

Cited by 30 publications

(33 citation statements)

References 123 publications

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“…To some extent, the mode of action of P. oligandrum resembles that of Trichoderma strains which have been described as being opportunistic symbiotic fungi (Trillas & Segarra, 2009), capable of not only colonizing the outermost root tissues without causing extensive damage but also stimulating plant growth and triggering plant defence reactions (Yedidia et al, 2000(Yedidia et al, , 2001. Several lines of evidence indicate that beneficial micro-organisms are initially recognized by the plant as potential invaders, after which a defence response is triggered.…”

Section: Self and Non-self Cellulose Degradationmentioning

confidence: 99%

Pythium oligandrum: an example of opportunistic success

et al. 2012

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Pythium oligandrum, a non-pathogenic soil-inhabiting oomycete, colonizes the root ecosystem of many crop species. Whereas most members in the genus Pythium are plant pathogens, P. oligandrum distinguishes itself from the pathogenic species by its ability to protect plants from biotic stresses in addition to promoting plant growth. The success of P. oligandrum at controlling soilborne pathogens is partly associated with direct antagonism mediated by mycoparasitism and antimicrobial compounds. Interestingly, P. oligandrum has evolved with specific mechanisms to attack its prey even when these belong to closely related species. Of particular relevance is the question of how P. oligandrum distinguishes between self-and non-self cell wall degradation during the mycoparasitic process of pathogenic oomycete species. The ability of P. oligandrum to enter and colonize the root system before rapidly degenerating is one of the most striking features that differentiate it from all other known biocontrol fungal agents. In spite of this atypical behaviour, P. oligandrum sensitizes the plant to defend itself through the production of at least two types of microbe-associated molecular patterns, including oligandrin and cell wall protein fractions, which appear to be closely involved in the early events preceding activation of the jasmonic acid-and ethylene-dependent signalling pathways and subsequent localized and systemic induced resistance. The aim of this review is to highlight the expanding knowledge of the mechanisms by which P. oligandrum provides beneficial effects to plants and to explore the potential use of this oomycete or its metabolites as new disease management strategies.

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Section: Self and Non-self Cellulose Degradationmentioning

confidence: 99%

Pythium oligandrum: an example of opportunistic success

et al. 2012

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“…For instance, Trichoderma species is plant growth promoting fungus that is commercially available and widely used in agriculture that induces systemic resistance against microbial pathogens in plants (Harman et al, 2004;Trillas et al, 2009;Segarra et al, 2009). When the Trichoderma spp.…”

Section: The Use Of Microbial Cellmentioning

confidence: 99%

Tomato leafminer [(Tuta absoluta Meyrick) (Lepidoptera: Gelechiidae)] and its current ecofriendly management strategies: A review

Aynalem¹

2018

J. Agric. Biotech. Sustain. Dev.

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Continue climatic changes in the world enhance the emergence of invasive agricultural insect pests.Tuta absoluta is one of the most devastating tomato leafminer and it spreads extensively in almost all parts of the world. It is a serious threat for tomato production and it results in highest damage. T. absoluta has fast growth rate with developmental stages of egg, larvae, pupa, and adult and it adapts to different environmental conditions. A larva is the most destructive one that consumes preferably leaves, stems and fruits of the tomato plant by hiding within mesophyll of the plant tissues. Although different environmentally hazardous pesticides are used against T. absoluta, none of the insecticides give full control due to the resistance development. This problem calls an urgent search for eco-friendly alternatives to control this invasive insect. Recent investigations are focused on different environmental friendly approaches that inclusively termed as IPM strategies. These are cultural practices, biopesticides, and biological using parasitoids, predators, microbial cells, microbial products, RNAi, inheritance sterility development in insect and pest resistant plant cultivar production are considered as promising alternatives to control T. absoluta. Therefore, this review briefly describes the current status of these methods used to design suitable and sustainable management strategies against T. absoluta.

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“…Trichoderma , Fusarium , Penicillium , Phoma and Pythium (Shoresh et al 2010 ;Trillas and Segarra 2009 ). Aspergillus ustus induced systemic resistance against Botrytis and Pseudomonas syringae , probably via jasmonic acid, salicylic acid, ethylene and camalexin defense related genes (Salas-Marina et al 2011 ).…”

Section: Plant Protection Against Herbivores and Pathogensmentioning

confidence: 99%

Beneficial Interactions in the Rhizosphere

Hol

Boer

Medina

2014

Biodiversity, Community and Ecosystems

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Production of plant biomass is one of the main ecosystem services delivered by soil. The area closely surrounding the root surface, the rhizosphere, is where plants interact with soil organisms. The interaction of a plant with soil microorganisms may result in several benefi ts to the plant, including improved nutrient availability or uptake, protection against pests and pathogens, improved tolerance to abiotic stress and growth promotion via hormones. Those relationships between plant and microorganisms determine plants growth and competitiveness. Ultimately the microbial community may determine plant community composition and succession. In this chapter we give an overview of fungal and bacterial microbial rhizosphere species that benefi t plants, namely plant growth promoting bacteria, mycorrhizal fungi and other benefi cial fungi. The aim is to summarize the current knowledge on mechanisms underlying plant-microbe interaction and to discuss the role of species identity and diversity for both microorganisms and plants. For each group (plant growth promoting bacteria, mycorrhiza, other benefi cial fungi) we highlight the latest developments and promising future directions. At the end of the chapter the microbial groups are viewed as part of the soil ecosystem and interactions between the groups are discussed.

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Chapter 8 Interactions Between Nonpathogenic Fungi and Plants

Cited by 30 publications

References 123 publications

Pythium oligandrum: an example of opportunistic success

Pythium oligandrum: an example of opportunistic success

Tomato leafminer [(Tuta absoluta Meyrick) (Lepidoptera: Gelechiidae)] and its current ecofriendly management strategies: A review

Beneficial Interactions in the Rhizosphere

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