1.Contralateral stroke with rapid recovery in a patient of herpes zoster ophthalmicus
Rajesh Verma ; Dilip Singh ; Pawan Sharma
Neurology Asia 2011;16(3):247-250
Herpes zoster ophthalmicus commonly presents with vesicular eruptions of skin along a dermatome
and post herpetic neuralgia. Viral invasion into the intracranial vessel and resultant arteritis is rare
complication, reported mainly in elderly, children and immunocompromised individuals. We report
a young immunocompetent male who reported to us with acute right sided hemiparesis following
an episode of left sided herpes zoster ophthalmicus three months prior to stroke. Patient had a near
complete recovery of his weakness without any treatment with persistent mild dysarthria. Magnetic
resonance imaging of brain showed subacute infarct in left middle cerebral artery territory. Magnetic
resonance angiogram demonstrated marked narrowing of the proximal segment of left middle cerebral
artery. This case highlights herpes zoster ophthalmicus as one of the causes of stroke in young with
good prognosis.
2.Induction of Defense Related Enzymes and Pathogenesis Related Proteins in Pseudomonas fluorescens-Treated Chickpea in Response to Infection by Fusarium oxysporum f. sp. ciceri.
Ratul SAIKIA ; Rakesh KUMAR ; Tanuja SINGH ; Alok K SRIVASTAVA ; Dilip K ARORA ; Min Woong LEE
Mycobiology 2004;32(1):47-53
Pseudomonas fluorescens 1-94 induced systemic resistance in chickpea against Fusarium wilt of chickpea caused by Fusarium oxysporum f. sp. ciceri by the synthesis and accumulation of phenolic compounds, phenylalanine ammonia lyase(PAL) and pathogenesis related(PR) proteins(chitinase, beta-1,3-glucanase and peroxidase). Time-course accumulation of these enzymes in chickpea plants inoculated with P. fluorescens was significantly(LSD, P=0.05) higher than control. Maximum activities of PR-proteins were recorded at 3 days after inoculation in all induced plants; thereafter, the activity decreased progressively. Five PR peroxidases detected in induced chickpea plants. Molecular mass of these purified peroxidases was 20, 29, 43, 66 and 97 kDa. Purified peroxidases showed antifungal activity against plant pathogenic fungi.
Ammonia
;
Cicer*
;
Fungi
;
Fusarium*
;
Peroxidases
;
Phenol
;
Phenylalanine
;
Plants
;
Pseudomonas fluorescens
;
Pseudomonas*
3.Effect of Iron Availability on Induction of Systemic Resistance to Fusarium Wilt of Chickpea by Pseudomonas spp..
Ratul SAIKIA ; Alok K SRIVASTAVA ; Kiran SINGH ; Dilip K ARORA ; Min Woong LEE
Mycobiology 2005;33(1):35-40
Selected isolates of Pseudomonas fluorescens (Pf4-92 and PfRsC5) and P. aeruginosa (PaRsG18 and PaRsG27) were examined for growth promotion and induced systemic resistance against Fusarium wilt of chickpea. Significant increase in plant height was observed in Pseudomonas treated plants. However, plant growth was inhibited when isolates of Pseudomonas were used in combination with Fusarium oxysporum f. sp. ciceri (FocRs1). It was also observed that the Pseudomonas spp. was colonized in root of chickpea and significantly suppressed the disease in greenhouse condition. Rock wool bioassay technique was used to study the effect of iron availability on the induction of systemic resistance to Fusarium wilt of chickpea mediated by the Pseudomonas spp. All the isolates of Pseudomonas spp. showed greater disease control in the induced systemic resistance (ISR) bioassay when iron availability in the nutrient solution was low. High performance liquid chromatography (HPLC) analysis indicated that all the bacterial isolates produced more salicylic acid (SA) at low iron (10microM EDDHA) than high iron availability (10microFe3+ EDDHA). Except PaRsG27, all the three isolates produced more pseudobactin at low iron than high iron availability.
Biological Assay
;
Chromatography, Liquid
;
Cicer*
;
Colon
;
Fusarium*
;
Iron*
;
Plants
;
Pseudomonas fluorescens
;
Pseudomonas*
;
Salicylic Acid
;
Wool