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. 2019 Jul 27;75(10):2558–2565. doi: 10.1002/ps.5527

Figure 2.

PS-5527-FIG-0002-c

Microbes in plant roots. (A) Cloud of bacteria (arrows) around root tip meristem of invasive reed grass (Phragmites australis); stained with aniline blue (0.1% aqueous). (B) Root parenchyma cell of P. australis showing replicating protoplasts of bacteria (arrows) in the periplasmic space of the cell (stained with DAB, followed by aniline blue; bar = 15 μ). (C) Root hair of grass Cynodon dactylon inoculated with bacterium Pseudomonas sp. showing bacterial protoplasts (arrows) in the periplasmic space of the hair (stained with DAB, followed by aniline blue; bar = 15 μ). (D) Root hairs of clover (Trifolium repens) inoculated with endophytic yeast (Rhodotorula sp.) showing yeast being expelled from the root hair tips (black arrows) and yeast protoplasts within root hairs (white arrow) (stained with DAB, followed by aniline blue; bar = 15 μ).