Fig. 2From: PGPR strain Paenibacillus polymyxa SQR-21 potentially benefits watermelon growth by re-shaping root protein expressionQualitative analysis of SQR-21-gfp cells colonized on watermelon roots. a Without inoculation of SQR-21-gfp to the watermelon roots as a control; after b 1, c 3, and d 5 days, SQR-21-gfp colonized on the watermelon rootsBack to article page