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Revisiting the Life-Cycle of Pasteuria penetrans Infecting Meloidogyne incognita under Soil-Less Medium, and Effect of Streptomycin Sulfate on its Development

Victor Phani

Victor Phani

Division of Nematology, ICAR-Indian Agricultural Research InstituteNew Delhi, India
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Phani, Victor
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Uma Rao

Uma Rao

Division of Nematology, ICAR-Indian Agricultural Research InstituteNew Delhi, India
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Rao, Uma
  
Jun 03, 2018
Revisiting the Life-Cycle of Pasteuria penetrans Infecting Meloidogyne incognita under Soil-Less Medium, and Effect of Streptomycin Sulfate on its Development's Cover Image
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Article Category: research-article
Published Online: Jun 03, 2018
Page range: 91 - 98
DOI: https://doi.org/10.21307/jofnem-2018-022
Keywords
© 2018 Victor Phani et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fig. 1

Life stages of Pasteuria penetrans infecting Meloidogyne incognita. A, Endospore encumbered J2; B, Endospore germination; C, Cauliflower-like microcolony; D, Fragmented microcolony; E, Star-shaped stage; F, Quartet; G, Triplet; H, Doublet; I–K, Developing endospores; L, Mature endospores; M, Mass of endospores coming out upon crushing of ♀ nematode (Scale bar: A = 20 µm; B–L = 5 µm).
Life stages of Pasteuria penetrans infecting Meloidogyne incognita. A, Endospore encumbered J2; B, Endospore germination; C, Cauliflower-like microcolony; D, Fragmented microcolony; E, Star-shaped stage; F, Quartet; G, Triplet; H, Doublet; I–K, Developing endospores; L, Mature endospores; M, Mass of endospores coming out upon crushing of ♀ nematode (Scale bar: A = 20 µm; B–L = 5 µm).

Fig. 2

Crushed female of Meloidogyne incognita. A Uninfected female showing the genital tracts with developing eggs inside; B, Infected female without formation of reproductive tract and filled with endospores (Inset: magnified view of spore mass with free endospores).
Crushed female of Meloidogyne incognita. A Uninfected female showing the genital tracts with developing eggs inside; B, Infected female without formation of reproductive tract and filled with endospores (Inset: magnified view of spore mass with free endospores).

Fig. 3

Roots of adzuki bean inoculated with Meloidogyne incognita in CYG germination pouch. A, Uninfected female showing the production of egg mass; B, Infected female without production of egg mass (Inset: magnified view of galls without egg mass).
Roots of adzuki bean inoculated with Meloidogyne incognita in CYG germination pouch. A, Uninfected female showing the production of egg mass; B, Infected female without production of egg mass (Inset: magnified view of galls without egg mass).

Fig. 4

Effect of Streptomycin sulfate on establishment of Pasteuria penetrans.
Effect of Streptomycin sulfate on establishment of Pasteuria penetrans.
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