Forest tree disease control and management

Kasanen, Risto; Awan, Hafiz Umair M.; Zarsav, Artin; Sun, Hui; Asiegbu, Fred O.

doi:10.1016/b978-0-323-85042-1.00023-9

Cited by 4 publications

(2 citation statements)

References 324 publications

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“…Currently, cultural practices or resistant species are used for disease management in forests (Prospero and Cleary, 2017; Woodcock et al, 2018). In forests, the use of chemical fungicides is subject to strict regulations and guidelines in many countries to prevent unacceptable risks to human, animal, or environmental health (Kasanen et al, 2022; Okorski et al, 2015). Repetitive applications of chemical agents in forests could also lead to resistant genotypes of pathogenic organisms or affect other non-target beneficial organisms.…”

Section: Introductionmentioning

confidence: 99%

Spray-induced gene silencing (SIGS) as a tool for the management of Pine Pitch Canker forest disease

Bocos-Asenjo,

Amin,

Mosquera

et al. 2024

Preprint

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Global change is exacerbating the prevalence of plant diseases caused by pathogenic fungi in forests worldwide. The conventional use of chemical fungicides, which is commonplace in agricultural settings, is not sanctioned for application in forest ecosystems, so novel control strategies are imperative. The promising approach SIGS (Spray-Induced Gene Silencing) involves the external application of specific double-stranded RNA (dsRNA), which can modulate the expression of target genes through environmental RNA interference in eukaryotes. SIGS exhibited notable success in reducing virulence when deployed against some crop fungal pathogens, such as Fusarium graminearum, Botrytis cinerea and Sclerotinia sclerotiorum, among others. However, there is a conspicuous dearth of studies evaluating the applicability of SIGS for managing forest pathogens. This research aimed to determine whether SIGS could be used to control Fusarium circinatum, a widely impactful forest pathogen that causes Pine Pitch Canker disease. To achieve this, we designed and produced though a bacterial synthesis, dsRNA molecules to target fungal essential genes involved to vesicle trafficking (Vps51, DCTN1, and SAC1), signal transduction (Pp2a, Sit4, Ppg1, and Tap42), and cell wall biogenesis (Chs1, Chs2, Chs3b, Gls1) metabolic pathways. We confirmed that F. circinatum is able to uptake externally applied dsRNA, triggering an inhibition of the pathogens virulence. Furthermore, this study pioneers the demonstration that recurrent applications of dsRNAs in SIGS are more effective in protecting plants than single applications. Therefore, SIGS emerges as an effective and sustainable approach for managing plant pathogens, showcasing its efficacy in controlling a globally significant forest pathogen subject to quarantine measures.

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Section: Introductionmentioning

confidence: 99%

Spray-induced gene silencing (SIGS) as a tool for the management of Pine Pitch Canker forest disease

Bocos-Asenjo,

Amin,

Mosquera

et al. 2024

Preprint

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“…In many cases, management activities, including the introduction of biological control agents, have had a limited impact on tree mortality caused by the biotic invaders. More focused efforts to develop biocontrol agents have been suggested for a variety of disease management approaches [4], but some level of host resistance will likely still be needed to insure sustainable populations. By contrast, traditional tree breeding programs, notably those utilizing the genetic variation within a species (as opposed to inter-crossing species to impart resistance or using genetic engineering or gene editing) have had notable successes [5], encouraging recent calls for even more concerted efforts as well as the use of genomic resources to aid resistance breeding efforts [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Will Genomic Information Facilitate Forest Tree Breeding for Disease and Pest Resistance?

Sniezko,

Koch,

Liu

et al. 2023

Forests

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Forest trees are beleaguered by the ever-increasing onslaught of invasive pests and pathogens, with some species in danger of functional extinction. Recent successes in developing resistant populations using traditional tree breeding assures that some of the affected species will persist in future forests. However, the sheer number of threatened species requires increases in breeding efficiency. The time is right to consider how the use of genomic resources might aid breeding efforts in the next 20 years. Any operational benefit of genomic resources will be minimal without closer collaboration between tree breeders, forest managers, and genomic researchers. We reflect here on what attributes were responsible for the success of traditional resistance breeding programs and whether advances in genomics can realistically accelerate breeding. We conclude that the use of genomics to directly advance resistance breeding efforts in the next 20 years will be limited. Major obstacles will include factors such as the undomesticated nature of most tree species, the quantitative genetic nature of resistance in many species, and the lack of adequate funding to accelerate and more fully develop genomic resources. Despite these limitations, genomic tools have potential to help increase our understanding of the nature of resistance, and the genetic variability in the host, which can aid in the deployment of resistant populations and may assist in marker-assisted selection, particularly for major gene resistance.

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Advances in Direct and Indirect Organogenesis in Forest Trees: A Review

Ram,

Thomas T

2024

Biotechnological Approaches for Sustaining Forest Trees and Their Products

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Forest tree disease control and management

Cited by 4 publications

References 324 publications

Spray-induced gene silencing (SIGS) as a tool for the management of Pine Pitch Canker forest disease

Spray-induced gene silencing (SIGS) as a tool for the management of Pine Pitch Canker forest disease

Will Genomic Information Facilitate Forest Tree Breeding for Disease and Pest Resistance?

Advances in Direct and Indirect Organogenesis in Forest Trees: A Review

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