Biological and Molecular Control Tools in Plant Defense

Pappas, Maria L.; Baptista, Paula; Broufas, George D.; Dalakouras, Athanasios; Djobbi, Wafa; Flors, Víctor; Guerfali, Meriem Msaad; Khayi, Slimane; Mentag, Rachid; Pastor, Victoria; Pereira, José Alberto; Sánchez-Bel, Paloma; Papadopoulou, Kalliope Κ.

doi:10.1007/978-3-030-51034-3_1

Cited by 6 publications

(13 citation statements)

References 268 publications

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“…Chemical control is included as one of the most effective tools against pests, although it may contribute to considerable environmental problems. Consistent with the general trend of replacing pesticides with effective environmentally friendly alternatives [3], biological control methods are promising in collectively synergizing efficient pest control. Biological control, i.e., the use of living organisms to control harmful ones, includes the natural enemies of pests (predators and parasitoids) and beneficial microorganisms.…”

Section: Introductionmentioning

confidence: 97%

“…Biological control, i.e., the use of living organisms to control harmful ones, includes the natural enemies of pests (predators and parasitoids) and beneficial microorganisms. In the latter group, several biocontrol agents are promising as they can affect herbivores directly as entomopathogens or indirectly via altering plant quality, producing metabolites, changing herbivores and natural enemies' behavior or inducing essential plant defenses [3][4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…Mechanisms involved in the fungicidal activity of soil microbes include the production of toxic metabolites, direct competition and plant defense induction [3,11,12].…”

Section: Introductionmentioning

confidence: 99%

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Beneficial Soil Microbes Negatively Affect Spider Mites and Aphids in Pepper

et al. 2021

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Beneficial soil microbes have long been recognized for their ability to improve plant growth, to antagonize pathogens and to prime plants against biotic stressors. Nevertheless, their ability to enhance plant resistance against arthropod pests remains largely unexplored, especially in crop plants such as pepper. Herein, we assessed the effects of several fungal and bacterial species/strains applied in the soil on the performance of key pests of pepper plants. Specifically, we recorded the impact of pepper inoculation with commercial strains of beneficial bacteria (Bacillus amyloliquefaciens and Pseudomonas spp.) as well as fungi (Trichoderma spp. and Cordyceps fumosorosea) on the population growth of the green peach aphid, Myzus persicae, and the two-spotted spider mite, Tetranychus urticae. Furthermore, we recorded the effects of microbial inoculation on plant growth parameters, such as stem and root weight. We found that both pests can be negatively affected by microbial inoculation: spider mites laid up to 40% fewer eggs, and the number of aphids were up to 50% less on pepper-inoculated plants, depending on the microbe. We also recorded a variation among the tested microbes in their impact on herbivore performance, but no significant effects were found on plant biomass. Our results add to the growing literature that beneficial soil microbes may be capable of exerting biocontrol capabilities against aboveground herbivorous pests possibly, among other means, via the elicitation of plant defense responses.

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Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

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Beneficial Soil Microbes Negatively Affect Spider Mites and Aphids in Pepper

et al. 2021

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“…Sin embargo, el empleo de agroquímicos, ha generado diversas controversias debido a sus altos costos, toxicidad y daños ambientales (Nicolopoulou-Stamati et al, 2016). Debido a esto se han buscado alternativas de control biológico, puesto que no genera efecto residual y contaminación (Pappas et al, 2020). Existe un grupo importante de microorganismos que presentan efectos antagónicos frente a otros microorganismos fitopatógenos (Sánchez-León y Bustos, 2020), entre los que destacan Bacillus subtilis y Trichoderma spp.…”

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“…Además, se han reportado antagonismo en la confrontación de B. subtilis frente a Fusarium spp. (Solano-Báez et al, 2021), ya que produce antibióticos y enzimas, así también ayuda a searches for biological control alternatives have been carried out, since they produce no residual effects or contamination (Pappas et al, 2020). There is an important group of microorganisms that display antagonistic effects on other phytopathogenic microorganisms (Sánchez-León and Bustos, 2020), including Bacillus subtilis and Trichoderma spp., which characteristically display antagonistic effects (Fiorentino et al, 2016).…”

Section: Fully Bilingualmentioning

confidence: 99%

In vitro antagonist biocontrol of Fusarium oxysporum and Dickeya chrysanthemi

Rubio-Tinajero¹,

Osorio-Hernández²,

Drouaillet³

et al. 2021

RMF

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El objetivo fue evaluar el efecto antagónico in vitro de cepas nativas de Trichoderma asperellum, Trichoderma harzianum y dos aislados de Bacillus spp. frente a Fusarium oxysporum y Dickeya chrysanthemi. Se identificó morfológicamente a Bacillus, aislado de muestras de suelo de plantaciones de Aloe vera y se realizó una confrontación de cultivos duales modificada, colocando en el centro de la caja Petri F. oxysporum y en los cuatro puntos cardinales las bacterias de Bacillus; para esto se dispuso bajo un diseño experimental completamente al azar con cinco repeticiones, las variables registradas fueron porcentaje de antagonismo, halo de inhibición y concentración de conidios. Para Trichoderma se confrontaron frente a F. oxysporum y D. chrysanthemi con una confrontación dual y se determinó porcentaje de inhibición y clasificación de antagonismo. En la confrontación de T. asperellum obtuvo un porcentaje de inhibición de 70.5 % frente a F. oxysporum y 41.9 % frente a D. chrysanthemi. En cuanto a los halos de inhibición de Bacillus (B5 y B4) obtuvieron 4 mm. En la concentración de conidios B5 mostró 1.3, B4 2.6 y el testigo 12.6 esporas por dilución. Trichoderma y Bacillus representan una alternativa viable para el control de F. oxysporum y D. chrysanthemi.

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Induction of plant defenses: the added value of zoophytophagous predators

Pérez‐Hedo

Bouagga²,

Zhang

et al. 2022

J Pest Sci

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Several biological control agents of the hemipteran insect families Miridae, Anthocoridae and Pentatomidae, as well as mites of the family Phytoseiidae are known as zoophytophagous predators, a subset of omnivores, which are primarily predaceous but also feed on plants. It has been recently demonstrated that zoophytophagous predators are capable of inducing defenses in plants through their phytophagy. Despite the vast fundamental knowledge on plant defense mechanisms in response to herbivores, our understanding of defense induction by zoophytophagous predators and applied implications is relatively poor. In this review, we present the physiological basis of the defense mechanisms that these predators activate in plants. Current knowledge on zoophytophagous predator-induced plant defenses is summarized by groups and species for the predators of economic importance. Within each group, feeding habits and the effects of their induced-plant defenses on pests and natural enemies are detailed. Also, the ecological implications of how the induction of defenses mediated by zoophytophagous predators can interact with other plant interactors such as beneficial soil microorganisms and plant viruses are addressed. Based on the above, we propose three approaches to exploit zoophytophagous predator-induced defenses in crop protection and to guide future research. These include using predators as vaccination agents, employing biotechnological approaches, as well as applying elicitors to elicit/mimic predator-induced defenses.

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Biological and Molecular Control Tools in Plant Defense

Cited by 6 publications

References 268 publications

Beneficial Soil Microbes Negatively Affect Spider Mites and Aphids in Pepper

Beneficial Soil Microbes Negatively Affect Spider Mites and Aphids in Pepper

In vitro antagonist biocontrol of Fusarium oxysporum and Dickeya chrysanthemi

Induction of plant defenses: the added value of zoophytophagous predators

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