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Difference in lesion formation by male and female Pratylenchus penetrans Cover

Difference in lesion formation by male and female Pratylenchus penetrans

Journal of Nematology
Volume 52 (2020): Issue 1 (January 2020)
By: Kanan Saikai and  Ann E. MacGuidwin  
Open Access
|Aug 2020

Figures & Tables

Figure 1:

Lesions formed by Pratylenchus penetrans females (A) and males (B) on root explants of pea at 14 days after the introduction of the nematodes. The arrow points at lesions on the male-inoculated root.
Lesions formed by Pratylenchus penetrans females (A) and males (B) on root explants of pea at 14 days after the introduction of the nematodes. The arrow points at lesions on the male-inoculated root.

Figure 2:

Relationship between time and the number of lesions per plant for roots of pea (A), dill (B), and alfalfa (C) inoculated with 40 Pratylenchus penetrans males or 40 P. penetrans females. Data bars represent the mean ± SE of three trials for pea and two trials for dill and alfalfa.
Relationship between time and the number of lesions per plant for roots of pea (A), dill (B), and alfalfa (C) inoculated with 40 Pratylenchus penetrans males or 40 P. penetrans females. Data bars represent the mean ± SE of three trials for pea and two trials for dill and alfalfa.

Figure 3:

Relationship between time and the average lesion length (mm) for roots of pea (A), dill (B), and alfalfa (C) inoculated with 40 Pratylenchus penetrans males or 40 P. penetrans females. Data bars represent the mean ± SE of three trials for pea and two trials for dill and alfalfa.
Relationship between time and the average lesion length (mm) for roots of pea (A), dill (B), and alfalfa (C) inoculated with 40 Pratylenchus penetrans males or 40 P. penetrans females. Data bars represent the mean ± SE of three trials for pea and two trials for dill and alfalfa.

Figure 4:

Relationship between time and the average lesion area (mm2) for roots of dill (A) and alfalfa (B) inoculated with 40 Pratylenchus penetrans males or 40 P. penetrans females. Data bars represent the mean ± SE of two trials. Letters represent statistically significant differences between female and male on each day (P< 0 .05). Asterisks denote difference between time points at day 7 and day 14.
Relationship between time and the average lesion area (mm2) for roots of dill (A) and alfalfa (B) inoculated with 40 Pratylenchus penetrans males or 40 P. penetrans females. Data bars represent the mean ± SE of two trials. Letters represent statistically significant differences between female and male on each day (P< 0 .05). Asterisks denote difference between time points at day 7 and day 14.

Mean and range of nematode data on roots of pea, dill, and alfalfa inoculated with 40 females or 40 males_

PeaDillAlfalfa
FemaleMaleFemaleMaleFemaleMale
Total nematodes/Petri dish25 (14-32)25 (15-35)35 (29-39)32 (28-36)30 (26-35)31 (26-34)
Average nematode/lesion1.1 (0.6-1.9)2.5** (1.6-4.2)2.7 (2.0-4.7)2.6 (1.0-4.3)1.5 (1.0-2.2)3.3** (1.7-4.6)
Endoparasites24 (14-32)22 (15-13)31 (24-36)27 (22-33)27 (24-32)28 (23-33)
Ectoparasites––0.6 (0-1)1.8* (0-6)0.5 (0-2)1.1 (0-2)
Egressed nematodes0.7 (0-4)2.7* (0-12)3.8 (2-6)5.3 (1-12)3.9 (1-10)3.1 (1-6)
Survival rate (%)––979610094
DOI: https://doi.org/10.21307/jofnem-2020-090 | Journal eISSN: 2640-396X | Journal ISSN: 0022-300X
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Language: English
Page range: 1 - 9
Published on: Aug 25, 2020
Published by: Society of Nematologists, Inc.
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year
Keywords:
Alfalfa,
Dill,
Lesion nematode,
Pea,
Symptoms
Related subjects:
Life sciences,
Life sciences, other

© 2020 Kanan Saikai, Ann E. MacGuidwin, published by Society of Nematologists, Inc.
This work is licensed under the Creative Commons Attribution 4.0 License.

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