Have a personal or library account? Click to login

Differences in parasitism of root-knot nematodes (Meloidogyne spp.) on oilseed radish and oat

Journal of Nematology
Volume 52 (2020): Issue 1 (January 2020)
By:
Open Access
|Apr 2020

Figures & Tables

Figure 1:

Gall and egg formation of Meloidogyne javanica (A and B), M. incognita race 3 (C and D), and M. arenaria race 1 (E and F) on cultivars of oilseed radish, white (Tachiibuki) and black (Pratex) oats under greenhouse conditions. Tomato cv. Rutgers was used as a susceptible host. Gall severity was assessed based on a scale 0 to 5 where 0 = no galls, and 5 ≥ 100 galls on roots. Data are the mean of two trials with ten replicates. Bars with the same letter(s) are not significantly different based on the Tukey’s test.
Gall and egg formation of Meloidogyne javanica (A and B), M. incognita race 3 (C and D), and M. arenaria race 1 (E and F) on cultivars of oilseed radish, white (Tachiibuki) and black (Pratex) oats under greenhouse conditions. Tomato cv. Rutgers was used as a susceptible host. Gall severity was assessed based on a scale 0 to 5 where 0 = no galls, and 5 ≥ 100 galls on roots. Data are the mean of two trials with ten replicates. Bars with the same letter(s) are not significantly different based on the Tukey’s test.

Figure 2:

Representative images of roots of oilseed radish cv. Eco-Till (A) and oat cv. Pratex (B) infected with Meloidogyne arenaria at 28 days after inoculation.
Representative images of roots of oilseed radish cv. Eco-Till (A) and oat cv. Pratex (B) infected with Meloidogyne arenaria at 28 days after inoculation.

Figure 3:

Hematoxylin-Eosin stained cross sections of root tissues of oilseed radish cv. Carwoodi (A) and Eco-Till (B) infected with Meloidogyne incognita at 28 days after inoculation. N, female nematode; GC, giant cell.
Hematoxylin-Eosin stained cross sections of root tissues of oilseed radish cv. Carwoodi (A) and Eco-Till (B) infected with Meloidogyne incognita at 28 days after inoculation. N, female nematode; GC, giant cell.

Figure 4:

Cross sections of root tissues of oat cv. Pratex (A) and Tachiibuki (B) infected with Meloidogyne javanica at 28 days after inoculation. N, female nematode; GC, giant cell.
Cross sections of root tissues of oat cv. Pratex (A) and Tachiibuki (B) infected with Meloidogyne javanica at 28 days after inoculation. N, female nematode; GC, giant cell.

Number of second-stage juveniles (J2), and young and adult (egg-laying) females of Meloidogyne spp_ in roots of oilseed radish (Eco-Till, susceptible; Carwoodi, resistance) at early-stage of infection (1, 3, and 5 days after inoculation; DAI) and at 28 DAI in the greenhouse_

J2J2J2Young femaleAdult female
Nematode/Cultivar1 DAI3 DAI5 DAI28 DAI28 DAI
M. javanica
Eco-Till8.5 a19.7 a30.6 a20.7 a17.6 a
Carwoodi2.7 a12.3 a27.0 a6.6 b4.2 b
M. incognita race 3
Eco-Till7.0 a19.6 a31.3 a12.0 a9.6 a
Carwoodi3.1 a12.3 a27.1 a3.6 b1.6 b
M. arenaria race 1
Eco-Till7.5 a16.3 a28.0 a10.3 a18.0 a
Carwoodi5.0 a21.6 a23.6 a3.0 b1.8 b

Reproduction of Meloidogyne javanica, M_ incognita race 3, and M_ arenaria race 1 on oilseed radish, white (Tachiibuki) and black (Pratex) oats under greenhouse conditions_

M. javanica M. incognita race 3 M. arenaria race 1
CultivarRfy Host statusz RfHost statusRfHost status
Tomatox 24.0 aGood11.1 aGood16.5 aGood
Cannavaro22.1 aGood2.7 cdeGood3.1 cGood
Final22.0 aGood2.5 bcGood10.2 bGood
Control11.0 bGood0.3 ePoor1.7 cMaintenance
Image8.2 bcGood7.7 abGood8.2 bGood
Eco-Till7.7 bcGood3.5 cdeGood12.5 abGood
Pratex7.1 bcGood3.9 cdGood9.7 bGood
Cardinal4.4 bcGood1.2 deGood1.9 cMaintenance
Tachiibuki3.6 bcGood0.2 ePoor0.3 cPoor
Karakter1.9 bcMaintenance1.1 eMaintenance0.9 c*Poor
Concorde1.8 bcMaintenance1.7 deMaintenance2.5 cGood
Carwoodi1.0 c*Poor0.2 ePoor0.2 cPoor

Number of second-stage juveniles (J2), and young and adult (egg-laying) females of Meloidogyne spp_ in roots of oat (Pratex, susceptible; Tachiibuki, resistance) cultivars at early-stage of infection (1, 3, and 5 days after inoculation; DAI) and at 28 DAI in the greenhouse_

J2J2J2Young femaleAdult female
Nematode/Cultivar1 DAI3 DAI5 DAI28 DAI28 DAI
M. javanica
Pratex4.7 a15.0 a28.1 a…x …
Tachiibuki6.0 a14.3 a24.3 a……
M. incognita race 3
Pratex5.6 a11.0 a23.5 a17.4 a20.5 a
Tachiibuki3.6 a8.3 a18.0 a2.3 b1.6 b
M. arenaria race 1
Pratex8.0 a15.3 a25.3 a16.0 a12.3 a
Tachiibuki6.3 a14.0 a29.1 a3.5 b2.6 b
DOI: https://doi.org/10.21307/jofnem-2020-043 | Journal eISSN: 2640-396X | Journal ISSN: 0022-300X
Journal RSS Feed
Language: English
Page range: 1 - 10
Submitted on: Jan 2, 2020
Published on: Apr 24, 2020
Published by: Society of Nematologists, Inc.
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year
Keywords:
Host response,
histopathology,
oilseed radish,
oat,
root-knot nematodes,
resistance
Related subjects:
Life sciences,
Life sciences, other

© 2020 Negin Hamidi, Abolfazl Hajihassani, published by Society of Nematologists, Inc.
This work is licensed under the Creative Commons Attribution 4.0 License.

Previous articleVolume 52 (2020): Issue 1 (January 2020)Next article