''Pantoea stewartii'' is a species of plant pathogenic bacteria that causes

Stewart's wilt Stewart's wilt is a serious bacterial disease of corn caused by the bacterium '' Pantoea stewartii''. This bacterium affects plants, particularly types of maize such as sweet, flint, dent, flour, and popcorn. The disease is also known as bacter ...

of corn, as well as

jackfruit The jackfruit (''Artocarpus heterophyllus''), also known as jack tree, is a species of tree in the fig, mulberry, and breadfruit family (Moraceae). Its origin is in the region between the Western Ghats of southern India, all of Bangladesh, ...

-bronzing disease, bacterial leaf wilt of sugarcane, and leaf blight in rice. ''P. stewartii'' is a gram-negative bacterium in the

Enterobacterales Enterobacterales is an order of Gram-negative, non-spore forming, facultatively anaerobic, rod-shaped bacteria with the class Gammaproteobacteria. The type genus of this order is ''Enterobacter.'' The name Enterobacterales is derived from the ...

, a group that also includes ''Escherichia coli'' and several other human, animal, and plant pathogens. Most research on this bacterial pathogen to date has been done on strains infecting corn as the other diseases have been identified much more recently. Due to being relatively easy to work with in laboratory research, ''P. stewartii'' has been used to study a range of processes in bacterial physiology including

quorum sensing In biology, quorum sensing or quorum signalling (QS) is the ability to detect and respond to cell population density by gene regulation. As one example, QS enables bacteria to restrict the expression of specific genes to the high cell densities at ...

, bacterial pigment production,

endoglucanase Cellulase (EC 3.2.1.4; systematic name 4-β-D-glucan 4-glucanohydrolase) is any of several enzymes produced chiefly by fungi, bacteria, and protozoans that catalyze cellulolysis, the decomposition of cellulose and of some related polysaccharide ...

enzymes, and

siderophore Siderophores (Greek: "iron carrier") are small, high-affinity iron-chelating compounds that are secreted by microorganisms such as bacteria and fungi. They help the organism accumulate iron. Although a widening range of siderophore functions is no ...

-mediated iron acquisition.

References

{{Taxonbar, from=Q7615691 Bacterial plant pathogens and diseases Maize diseases Enterobacterales