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Meloidogyne spp. in Eucalypts - Reproduction and Damage to Seedling Growth

Journal of Nematology
Volume 55 (2023): Issue 1 (February 2023)
By:
Open Access
|Jan 2024

Figures & Tables

Figure 1:

Effect of Meloidogyne enterolobii, M. incognita, and M. javanica on root system volume, mass, and length of Eucalyptus grandis seedlings grown in a greenhouse for six months. Values are the mean of 10 seedlings per nematode species. “*” denotes a significant difference relative to the control according to the Mann–Whitney test at 5% significance.
Effect of Meloidogyne enterolobii, M. incognita, and M. javanica on root system volume, mass, and length of Eucalyptus grandis seedlings grown in a greenhouse for six months. Values are the mean of 10 seedlings per nematode species. “*” denotes a significant difference relative to the control according to the Mann–Whitney test at 5% significance.

Figure 2:

Effect of Meloidogyne enterolobii, M. incognita, and M. javanica on root system length and volume of eucalypt seedlings grown in a greenhouse for six months. A) Eucalyptus saligna. B, C) hybrid E. grandis × E. urophylla. Values are the means of 10 seedlings per eucalypt species or hybrid, per nematode species. “*” denotes a significant difference relative to the control according to the Mann-Whitney test at 5% significance.
Effect of Meloidogyne enterolobii, M. incognita, and M. javanica on root system length and volume of eucalypt seedlings grown in a greenhouse for six months. A) Eucalyptus saligna. B, C) hybrid E. grandis × E. urophylla. Values are the means of 10 seedlings per eucalypt species or hybrid, per nematode species. “*” denotes a significant difference relative to the control according to the Mann-Whitney test at 5% significance.

Supplementary Figure 1:

A) Eucalypt seedlings cultivated in a greenhouse for assessment of host status to and damage by Meloidogyne incognita, M. javanica, and M. enterolobii. B) Corymbia citriodora. C) Eucalyptus saligna. D) Hybrid E. grandis × E. urophylla. E) E. grandis. F) E. dunni. G) E. cloeziana. H) E. camaldulensis.
A) Eucalypt seedlings cultivated in a greenhouse for assessment of host status to and damage by Meloidogyne incognita, M. javanica, and M. enterolobii. B) Corymbia citriodora. C) Eucalyptus saligna. D) Hybrid E. grandis × E. urophylla. E) E. grandis. F) E. dunni. G) E. cloeziana. H) E. camaldulensis.

Reproduction factor and host status of Eucalyptus spp_ and Corymbia citriodora to Meloidogyne enterolobii, M_ incognita, and M_ javanica, after cultivation in greenhouse for six months

SpeciesM. enterolobiiM. incognitaM. javanica
E. camaldulensis0.22a (R)b0.52 (R)1.04 (S)
E. cloeziana0.60 (R)0.46 (R)0.62 (R)
E. dunni0.50 (R)0.82 (R)0.74 (R)
E. grandis0.38 (R)0.62 (R)0.42 (R)
E. saligna0.94 (R)4.82 (S)3.44 (S)
E. grandis × E. urophylla1.72 (S)0.48 (R)2.46 (S)
C. citriodora0.94 (R)0.90 (R)0.54 (R)

Mean ± error of shoot height (SH), stem diameter (SD), dry mass of leaves (ML), root-system mass (RSM), root system volume (RSV), and root-system length (RSL) of seedlings of Eucalyptus spp_ and Corymbia citriodora when inoculated with Meloidogyne enterolobii, M_ incognita or M_ javanica, and cultivated in a greenhouse for six months_

TreatmentsSH (cm)SD (mm)ML (g)RSM (g)RSV (cm3)RSL (cm)
Eucalyptus camaldulensis
Meloidogyne enterolobii37.40 ± 0.72a3.38 ± 0.100.76 ± 0.103.06 ± 0.444.0 ± 0.2521.4 ± 0.78
Meloidogyne incognita37.20 ± 0.793.62 ± 0.120.89 ± 0.112.99 ± 0.242.9 ± 0.3721.2 ± 0.84
Meloidogyne javanica34.50 ± 0.573.52 ± 0.110.89 ± 0.113.32 ± 0.312.8 ± 0.5520.20 ± 0.42
Control39.01 ± 0.883.39 ± 0.100.92 ± 0.143.06 ± 0.234.2 ± 0.4121.4 ± 0.55
Corymbia citriodora
Meloidogyne enterolobii33.30 ± 0.533.01 ± 0.070.81 ± 0.074.23 ± 0.154.0 ± 0.3320.0 ± 0.59
Meloidogyne incognita34.06 ± 0.423.03 ± 0.090.70 ± 0.112.53 ± 0.173.8 ± 0.3520.5 ± 0.22
Meloidogyne javanica30.60 ± 0.692.90 ± 0.080.69 ± 0.064.13 ± 0.193.1 ± 0.3120.0 ± 0.47
Control33.33 ± 0.533.26 ± 0.080.81 ± 0.074.15 ± 0.144.5 ± 0.3420.9 ± 0.48
Eucalyptus cloeziana
Meloidogyne enterolobii28.61 ± 0.933.26 ± 0.081.00 ± 0.142.98 ± 0.123.6 ± 0.5518.8 ± 0.28
Meloidogyne incognita27.90 ± 0.973.30 ± 0.111.10 ± 0.263.26 ± 0.223.4 ± 0.3919.2 ± 0.38
Meloidogyne javanica28.70 ± 0.973.25 ± 0.121.07 ± 0.144.98 ± 0.134.9 ± 0.5018.8 ± 0.32
Control32.50 ± 1.003.48 ± 0.091.26 ± 0.124.38 ± 0.143.8 ± 0.4719.2 ± 0.24
Eucalyptus dunni
Meloidogyne enterolobii38.51 ± 0.764.18 ± 0.141.2 ± 0.162.72 ± 0.423.6 ± 0.3818.8 ± 0.23
Meloidogyne incognita37.17 ± 0.844.24 ± 0.120.96 ± 0.153.45 ± 0.473.2 ± 0.3920.3 ± 0.38
Meloidogyne javanica41.00 ± 0.814.27 ± 0.131.0 ± 0.113.07 ± 0.493.0 ± 0.5118.8 ± 0.33
Control41.20 ± 0.704.12 ± 0.121.23 ± 0.114.99 ± 0.444.6 ± 0.3919.7 ± 0.39
Eucalyptus grandis
Meloidogyne enterolobii34.28 ± 0.783.44 ± 0.130.48 ± 0.072.89 ± 0.37*2.50 ± 0.40*19.3 ± 0.49*
Meloidogyne incognita36.78 ± 0.693.81 ± 0.100.83 ± 0.094.96 ± 0.643.40 ± 0.43*20.0 ± 0.29*
Meloidogyne javanica36.56 ± 0.783.97 ± 0.110.45 ± 0.053.08 ± 0.45*2.60 ± 0.39*19.8 ± 0.39*
Control36.52 ± 0.923.84 ± 0.120.60 ± 0.075.14 ± 0.784.40 ± 0.4921.5 ± 0.41
Eucalyptus saligna
Meloidogyne enterolobii24.13 ± 0.623.75 ± 0.111.3 ± 0.164.86 ± 0.942.3 ± 0.6119.0 ± 0.63*
Meloidogyne incognita24.18 ± 0.653.82 ± 0.111.37 ± 0.137.87 ± 1.233.9 ± 0.7620.8 ± 0.45*
Meloidogyne javanica24.85 ± 0.593.49 ± 0.101.05 ± 0.145.73 ± 1.132.4 ± 0.5720.3 ± 0.61*
Control27.52 ± 0.543.58 ± 0.531.25 ± 0.156.74 ± 1.083.1 ± 0.4922.5 ± 0.67
Eucalyptus grandis × Eucalyptus urophylla
Meloidogyne enterolobii20.30 ± 0.893.60 ± 0.101.06 ± 0.093.43 ± 0.51.20 ± 0.13*20.3 ± 1.01*
Meloidogyne incognita20.60 ± 0.593.75 ± 0.101.07 ± 0.172.41 ± 0.441.30 ± 0.15*20.6 ± 0.63*
Meloidogyne javanica24.26 ± 0.584.19 ± 0.271.32 ± 0.153.16 ± 0.461.30 ± 0.19*24.2 ± 0.53
Control27.67 ± 0.843.54 ± 0.421.19 ± 0.163.74 ± 0.392.01 ± 0.2024.0 ± 0.66
DOI: https://doi.org/10.2478/jofnem-2023-0059 | Journal eISSN: 2640-396X | Journal ISSN: 0022-300X
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Language: English
Submitted on: May 11, 2023
Published on: Jan 23, 2024
Published by: Society of Nematologists, Inc.
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year
Keywords:
spp.,
host-parasitic relationship,
nematode damage,
resistance,
root-knot nematode
Related subjects:
Life sciences,
Life sciences, other

© 2024 José Olívio Lopes Vieira, Renata Cunha Pereira, Mariana Zandomênico Mangeiro, Ricardo Moreira Souza, published by Society of Nematologists, Inc.
This work is licensed under the Creative Commons Attribution 4.0 License.

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