A review on bacterial stalk rot disease of maize caused by Dickeya zeae

Abstract

Bacterial stalk rot of maize caused by Dickeya zeae previously known as E. chrysanthemi pv. zeae have economic importance of reduced crop yield up to 98.8%. The disease is more prevalent in rainy season in India. The bacterium prefers high temperature and moisture for their growth result is plant toppled down within week. The pathogen has wide host range (maize, rice, tomato, chilli and brinjal etc.) which help to pathogen for long survival in soil. The bacterium characterized by biochemical and molecular tactics. In present, Pel gene and rDNA specific primers are frequently used for D. zeae characterization. The pathogen significantly controls under in vitro and in vivo condition via bleaching powder (drenching of 100 ppm) and antibiotics. The present studies generated data on pathogen nomenclature, etiology, epidemiology, host range, pathogen survival, biochemical, physiological and molecular characterization, germplasm evaluation and disease management.

Selective Enzymatic Release and Gel Formation by Cross-Linking of Feruloylated Glucurono-Arabinoxylan from Corn Bran

“…BP-7, B. substilis , B. licheniformis , Clostridium acetobutylicum , C. papyrosolvens , Streptomyces turgidiscabies , Talaromyces cellulolyticus , Thermothelomyces thermophila (synonym Myceliophthora thermophila ), and Trichoderma reesei . However, in particular the endoxylanase, DcXyn30, from Dickeya chrysanthemi (previously known as Erwinia chrysanthemi pv zeae or Dickeya zeae ) ,,− caught our attention, because D. chrysanthemi is a maize pathogen. − Although this pathogenicity has been known for 60 years, the reactivity of DcXyn30 towards corn bran FGAX has to our knowledge not been reported. Here, we show the usefulness of DcXyn30 for controlled enzymatic extraction of soluble and high-molecular weight FGAX polysaccharides from corn bran and demonstrate the applicability of the extracted FGAX molecules to form hydrogels via laccase-catalyzed cross-linking of the feruloyl residues.…”

Green Synthesis of Silver Nanoparticles with Culture Supernatant of a Bacterium Pseudomonas rhodesiae and Their Antibacterial Activity against Soft Rot Pathogen Dickeya dadantii

“…Gram-negative bacteria belonging to the genera Pectobacterium and Dickeya are broad-host-range pathogens causing devastating soft rot diseases of ornamental and crop plants [1,2]. Some Dickeya species cause foot rot of rice [3,4], stalk rot of maize [5], blackleg and soft rot of potato [6,7,8], and stem and root rot of sweet potato [9,10], threatening staple food security.…”

Sources with multiple field resistance to bacterial banded leaf and sheath blight and maydis leaf blight in maize inbred lines

“…As has been observed in the present studies, partial resistance against E. chrysanthemi pv. zeae has been reported in lines CM 101, CM 110, CM 104 and CM 105 and CM 600 (Kumar et al, 2017). Similarly, for BLSB resistance, none of the line were found free from the disease whereas, one line i.e.…”

“…bacterial stalk rot (BSR) caused by Dickeyazeae, banded leaf and sheath blight (BLSB), Rhizoctonia solani f.sp. sasakii and maydis leaf blight (MLB), Bipolaris maydis (Teleomorph: Cochliobolus heterostrophus) are the major constraints for low yield (Hooda et al, 2012, Kumar et al, 2017Ding et al, 2017;Mubeen et al, 2017). In Himachal Pradesh, maize is the principal crop for food, fodder and feed (Lata et al, 2014) and the state being a high rainfall area diseases viz.…”