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Temporal Interactions between Root-Lesion Nematodes and the Fungus Rhizoctonia Solani Lead to Reduced Potato Yield

Edin, Eva and Gulsher, Mehreen and Andersson Franko, Mikael and Englund, Jan-Eric and Flöhr, Adam and Kardell, Jonas and Viketoft, Maria (2019). Temporal Interactions between Root-Lesion Nematodes and the Fungus Rhizoctonia Solani Lead to Reduced Potato Yield. Agronomy. 9 , 1-17
[Journal article]

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Abstract

Soil microorganisms and soil fauna may have a large impact on the tuber yield of potato crops. The interaction between root-lesion nematodes and the pathogenic fungus Rhizoctonia solani Kuhn was studied on potato plants grown in pots under controlled conditions. In two similar experiments, different combinations of nematodes and fungal mycelium were added to the pots at three occasions; at planting, after 14 days, and after 28 days. The nematodes reduced root biomass and the combination of nematodes and R. solani resulted in reduced tuber yield in both experiments, but the interaction was not synergistic. In contrast, the number of stem canker lesions decreased in the presence of nematodes compared to treatments with R. solani only. The time of inoculation influenced the severity of both fungal and nematode damage. The nematode damage on tubers was less severe if the nematodes were added at 28 days, while the number of severe stem canker lesions increased if the fungus was added at 28 days. However, the time of nematode inoculation did not affect the incidence of fungal damage, hence the nematodes did not assist R. solani to infect the plant. Our results highlight the underestimated importance of root-lesion nematodes, not resulting in obvious above ground symptoms or misshaped tubers yet affecting the performance of other pathogens.

Authors/Creators:Edin, Eva and Gulsher, Mehreen and Andersson Franko, Mikael and Englund, Jan-Eric and Flöhr, Adam and Kardell, Jonas and Viketoft, Maria
Title:Temporal Interactions between Root-Lesion Nematodes and the Fungus Rhizoctonia Solani Lead to Reduced Potato Yield
Year of publishing :2019
Volume:9
Page range:1-17
Number of Pages:0
Publisher:MDPI
ISSN:2073-4395
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Agricultural Science
Keywords:black scurf, disease complex, elephant hide, Pratylenchus, stem canker
URN:NBN:urn:nbn:se:slu:epsilon-p-101266
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-101266
Additional ID:
Type of IDID
DOI10.3390/agronomy9070361
Web of Science (WoS)000478660500028
ID Code:16748
Faculty:LTV - Fakulteten för landskapsarkitektur, trädgårds- och växtproduktionsvetenskap
NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(LTJ, LTV) > Department of Biosystems and Technology (from 130101)
(VH) > Department of Biosystems and Technology (from 130101)

(NL, NJ) > Dept. of Energy and Technology
(NL, NJ) > Dept. of Forest Mycology and Plant Pathology
(S) > Dept. of Forest Mycology and Plant Pathology

(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology
Deposited By: SLUpub Connector
Deposited On:14 Apr 2020 11:59
Metadata Last Modified:03 Sep 2020 13:12

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