First evidence of human infection by Xiphinema brevicollum (Nematoda: Longidoridae)

Haouchine, Djamel; Mantelet, Stéphane; Marteau, Anthony; Brun, Sophie; Dabi, Philippe; Abbas, Meryem; Izri, Arezki; Akhoundi, Mohammad

doi:10.1016/j.ijid.2022.07.007

Cited by 2 publications

(1 citation statement)

References 5 publications

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“…Another Xiphinema species that may need close attention having recorded an overall risk score above 54 is Xiphinema brasiliense. Although this species mainly affects Nicotiana tabacum (tobacco), it is a has been reported as a phytonosis (Haouchine et al 2022).…”

Section: Discussionmentioning

confidence: 99%

Prioritizing nematode species likely to be introduced and threaten agriculture, biodiversity, and forestry in Zambia: A Horizon Scanning Approach

Mulema,

Phiri,

Bbebe

et al. 2023

Preprint

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Introduction of invasive alien species through intentional or unintentional human mediated activities has caused enormous loss of income to economies, affected livelihoods and degraded biodiversity. This has necessitated forward planning through horizon scanning coupled with risk assessment to identify, prioritise, and prevent introduction of alien species that may become invasive (quarantine pests). CABI has developed the Horizon Scanning Tool that utilises information in the CABI compendia to identify pests not yet reported as present in the area at risk. When applied to Zambia, the tool identified 199 candidate nematode species not reported as present in Zambia. The list was refined to focus on species affecting Zambia’s important value chains resulting in a final subset of 130 species that were assessed using agreed guidelines. The possible highest and lowest overall risk scores expected were 250 and 2 respectively however, the highest recorded was 140 for Pratylenchus penetrans, P. thornei, and Rotylenchulus reniformis and the lowest 3, for Peltamigratus luci. A minimum overall risk score of 54 suggested as the cut-off was attained by a proportion of 45% (n = 58) species. The majority (54%, n = 70) of the nematode species were likely to be introduced via the contaminant or stowaway pathways while 41% (n = 53) and 5% (n = 7) solely as contaminants and stowaways respectively. Twenty-one (16%) of the nematode species vectored pathogenic organisms, one bacterium (Rathayibacter toxicus) and 11 viruses. Among the viruses vectored, five recorded overall risk scores above 54 and included Tomato ringspot virus (105), Tobacco rattle virus (90), Pea early-browning virus (72), Tomato black ring virus (70), and Arabis mosaic virus (60). One of the viruses, Tobacco ringspot virus was not assessed because it was already reported as present in Zambia. The information from this assessment will guide a number of interventions aimed at preventing the introduction of nematode species that may become invasive or prevent the spread of already introduced species.

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Section: Discussionmentioning

confidence: 99%

Prioritizing nematode species likely to be introduced and threaten agriculture, biodiversity, and forestry in Zambia: A Horizon Scanning Approach

Mulema,

Phiri,

Bbebe

et al. 2023

Preprint

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Microbiome of Xiphinema elongatum (Nematoda, Longidoridae), isolated from water berry

Shokoohi,

Masoko

2024

Sci Rep

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The soil microbiome is crucial for the environment and significantly impacts the ecosystem. Understanding the microbiome and its interaction with soil microorganisms is essential for improving ecological and environmental strategies. In this study, Xiphinema elongatum nematodes were collected from water berry in Sovenga Hills, Limpopo Province, South Africa, and were analyzed their associated bacterial communities using metabarcoding analysis. The findings revealed that X. elongatum forms associations with a wide range of bacterial species. Among the most abundant species identified, we found Sphingomonas sp., a bacterial species commonly found in various habitats and primarily beneficial to plants, and Candidatus Xiphinematobacter , a bacterial species commonly found in nematode species of Xiphinema as an endosymbiont. The analysis using principal component analysis (PCA) revealed that the abundance of X. elongatum in the soil is inversely correlated with clay content ( r = -0.52) and soil pH levels ( r = -0.98), and directly correlated with soil sand content ( r = 0.88). This study provides valuable insights into the bacterial species associated with plant-parasitic nematodes in trees in South Africa. It underscores the presence of various potentially detrimental and beneficial nematode-associated bacteria. The results could potentially influence the overall quality of the soil, leading to implications for the productivity and yield of fruit crops. Additionally, the results help us understand the interaction between bacteria and X. elongatum . Supplementary Information The online version contains supplementary material available at 10.1038/s41598-024-80877-2.

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First evidence of human infection by Xiphinema brevicollum (Nematoda: Longidoridae)

Cited by 2 publications

References 5 publications

Prioritizing nematode species likely to be introduced and threaten agriculture, biodiversity, and forestry in Zambia: A Horizon Scanning Approach

Prioritizing nematode species likely to be introduced and threaten agriculture, biodiversity, and forestry in Zambia: A Horizon Scanning Approach

Microbiome of Xiphinema elongatum (Nematoda, Longidoridae), isolated from water berry

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