Table 3. Rhizobacteria as biocontrol agents in tomato and other crop plant rhizosphere.

Biocontrol agents	Rhizosphere organisms	Effect on plants	Reference
Rhizoacteria	Proteobacteria, Actinobacteria, Firmicutes, Acidobacteria, Gemmatimonadetes,	Biological control of tobacco bacterial wilt (Ralstonia solanacearum)	Hu et al. (2021)
	Pseudomonas species	Biological control of Fusarium oxysporum f. sp. cepae (FOC) obtained from onion (Allium cepa) rhizosphere	Bektas & Kusek (2021)
	Bacillus subtilis K4-4 and GH3-8, Stenotrophomonas, Sphingobacterium genus	Neocosmospora (Fusarium) solani is a fungi disease affecting orange (Citrus sinensis) biologically controlled fruit controlled by the cited bacteria	Ezrari et al. (2021)
	Pseudomonas species and Serratia species	The organism reduced egg hatching and promoted mortality rate in vitro	Abd El-Aal et al. (2021)
	Streptomyces werraensis F3	The PGPR was isolated from the rhizosphere of ginseng and was analyzed for antifungal properties against ginseng root rot	Qi et al. (2021)
	Alcaligenes faecalis and Acinetobacter sp.	Clavibacter michiganensis caused tomato bacteria canker to be controlled biologically by the rhizosphere organisms	Oloyede et al. (2021)
	Streptomyces species	PGPR can biocontrol pathogenic fungi, Fusarium oxysporum causing root rot	Sari, Nawangsih & Wahyudi (2021)
	Bacillus safensis RF69, Bacillus species RP103 and Bacillus species RP242	Biological control activities have proven to be effective in controlling maize plant spoilage organisms (Fusarium verticillioides)	Einloft et al. (2021)