The population of oomycetes in a recycled irrigation water system at a horticultural nursery in southern California

Redekar, Neelam; Bourret, Tyler B.; Eberhart, Joyce; Johnson, Grant E.; Pitton, Bruno J.L.; Haver, Darren; Oki, Lorence R.; Parke, Jennifer L.

doi:10.1016/j.watres.2020.116050

Cited by 18 publications

(9 citation statements)

References 33 publications

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“…The transfer of diseased plants and soil from nurseries to plantations is of great concern. There has been extensive research on the hygiene protocols necessary to prevent the transmission of Phytophthora to natural and agricultural ecosystems through infected planting stock from nurseries elsewhere in the world, and many of these protocols are suitable for adoption in Vietnam (Parke et al, 2014;Redekar et al, 2019Redekar et al, , 2020Simamora et al, 2018). Not all isolates of P. cinnamomi recovered in this study caused disease, particularly those isolated from healthy plants.…”

Section: Discussionmentioning

confidence: 99%

Root rot pathogens of Cinnamomum cassia in Vietnam

et al. 2022

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The genus Phytophthora is one of the most destructive plant pathogens in temperate and tropical regions. Various diseases are caused by different species, affecting roots, shoots or fruits (Abraham et al., 2015), and have resulted in significant economic losses in agriculture and agroforestry. Many Phytophthora species have spread beyond their original geographical regions, primarily due to international trade, and climate change is also altering their distribution (Derevnina et al., 2016;Fisher et al., 2012). In Vietnam, the tree crops known to be affected by Phytophthora include avocado, pepper, durian, cocoa, rubber, bananas, citrus fruits, ap-

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Section: Discussionmentioning

confidence: 99%

Root rot pathogens of Cinnamomum cassia in Vietnam

et al. 2022

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“…In addition, because ITS1 does not resolve species identification for several Pythium and Phytophthora spp., representative sequences were imported in Geneious Prime (v2022.2.2) for local alignments and confirmation. Finally, species unresolved with the ITS1 region were grouped and labeled with the cluster or complex designation (Redekar et al, 2019(Redekar et al, , 2020. The description of each species cluster or complex used in this study is presented in Table 1.…”

Section: Sequence Processingmentioning

confidence: 99%

Oomycete communities are influenced by land use and disease status in Christmas tree production in Southern Québec, Canada

Van der Heyden,

Duceppe,

Charron

et al. 2024

Environmental DNA

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Forests are threatened by many natural stressors intensified by climate change and anthropogenic activities, which tend to increase their susceptibility to pests and pathogens. Consequently, oomycete‐related forest decline or dieback cases are increasing in natural, urban, and agricultural landscapes. It is in this context that Christmas tree growers from Southern Québec, Canada, are experiencing root rot problems, with reported incidences up to 25%. In a previous study, seven Phytophthora spp. were associated with this root rot problem, but the overall diversity of oomycetes has not yet been investigated. Hence, in this study, we use a metabarcoding approach to provide an overview of the diversity, richness, and composition of the oomycete community in fir plantations compared to surrounding natural forests. We showed that the P. cryptogea cluster, P. europaea cluster, P. sansomeana, and P. chlamydospora cluster were significantly more abundant in soils collected from plantations under diseased trees and confirmed that the P. europaea cluster (including P. abietivora) was most frequently associated with trees showing Phytophthora root rot‐like symptoms. Finally, we report that land use (anthropogenic activities) shapes oomycete diversity, while plantations can act as a gateway for invading natural forests. In fact, the results presented here suggested that the P. europaea cluster might already have crossed this boundary and that other species might follow, advocating the importance of improved surveillance of oomycete diversity in various environments.

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“…They underscored the potential of rainwater collection in nurseries, a practice that leads to marked reductions in water consumption and operational costs. This is complemented by the findings of Redekar et al. (2020) on recycled water systems, which emerge as a paradigm of conservation while ensuring an uncontaminated water supply for crops.…”

Section: Sustainability In Vegetable Cultivationmentioning

confidence: 99%

Advancing horizons in vegetable cultivation: a journey from ageold practices to high-tech greenhouse cultivation—a review

Ahmed,

Zhang,

Deng

et al. 2024

Front. Plant Sci.

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Vegetable cultivation stands as a pivotal element in the agricultural transformation illustrating a complex interplay between technological advancements, evolving environmental perspectives, and the growing global demand for food. This comprehensive review delves into the broad spectrum of developments in modern vegetable cultivation practices. Rooted in historical traditions, our exploration commences with conventional cultivation methods and traces the progression toward contemporary practices emphasizing the critical shifts that have refined techniques and outcomes. A significant focus is placed on the evolution of seed selection and quality assessment methods underlining the growing importance of seed treatments in enhancing both germination and plant growth. Transitioning from seeds to the soil, we investigate the transformative journey from traditional soil-based cultivation to the adoption of soilless cultures and the utilization of sustainable substrates like biochar and coir. The review also examines modern environmental controls highlighting the use of advanced greenhouse technologies and artificial intelligence in optimizing plant growth conditions. We underscore the increasing sophistication in water management strategies from advanced irrigation systems to intelligent moisture sensing. Additionally, this paper discusses the intricate aspects of precision fertilization, integrated pest management, and the expanding influence of plant growth regulators in vegetable cultivation. A special segment is dedicated to technological innovations, such as the integration of drones, robots, and state-of-the-art digital monitoring systems, in the cultivation process. While acknowledging these advancements, the review also realistically addresses the challenges and economic considerations involved in adopting cutting-edge technologies. In summary, this review not only provides a comprehensive guide to the current state of vegetable cultivation but also serves as a forward-looking reference emphasizing the critical role of continuous research and the anticipation of future developments in this field.

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The population of oomycetes in a recycled irrigation water system at a horticultural nursery in southern California

Cited by 18 publications

References 33 publications

Root rot pathogens of Cinnamomum cassia in Vietnam

Root rot pathogens of Cinnamomum cassia in Vietnam

Oomycete communities are influenced by land use and disease status in Christmas tree production in Southern Québec, Canada

Advancing horizons in vegetable cultivation: a journey from ageold practices to high-tech greenhouse cultivation—a review

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