Ajit Varma

ORCID: 0000-0001-6100-0045
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Plant-Microbe Interactions and Immunity
  • Mycorrhizal Fungi and Plant Interactions
  • Legume Nitrogen Fixing Symbiosis
  • Plant Pathogens and Fungal Diseases
  • Plant tissue culture and regeneration
  • Fungal Biology and Applications
  • Nematode management and characterization studies
  • Plant Parasitism and Resistance
  • Biofuel production and bioconversion
  • Nanoparticles: synthesis and applications
  • Essential Oils and Antimicrobial Activity
  • Microbial Community Ecology and Physiology
  • Diabetic Foot Ulcer Assessment and Management
  • Plant nutrient uptake and metabolism
  • Plant Stress Responses and Tolerance
  • Microbial Metabolites in Food Biotechnology
  • Enzyme Production and Characterization
  • Algal biology and biofuel production
  • Heavy metals in environment
  • Wound Healing and Treatments
  • Soil Carbon and Nitrogen Dynamics
  • Plant Micronutrient Interactions and Effects
  • Chromium effects and bioremediation
  • Microbial Metabolic Engineering and Bioproduction
  • Plant and fungal interactions

Amity University
2016-2025

Institute of Microbial Technology
2015-2024

Rama University
2022-2024

Occidental Petroleum (United States)
2024

Institute of Management Technology
2023

SleepMed
2023

IBM (United States)
2023

MIT Lincoln Laboratory
2023

Shriram Institute for Industrial Research
2021

Mizoram University
2021

Piriformospora indica (Hymenomycetes, Basidiomycota) is a newly described cultivable endophyte that colonizes roots. Inoculation with the fungus and application of fungal culture filtrate promotes plant growth biomass production. Due to its ease culture, this provides model organism for study beneficial plant-microbe interactions new tool improving production systems.

10.1128/aem.65.6.2741-2744.1999 article EN Applied and Environmental Microbiology 1999-06-01

Biogenic synthesis of metal nanoparticles is considerable interest, as it affords clean, biocompatible, nontoxic, and cost-effective fabrication. Driven by their ability to withstand variable extremes environmental conditions, several microorganisms, notably bacteria fungi, have been investigated in the never-ending search for optimal nanomaterial production platforms. Here, we present a hitherto unexplored algal platform featuring Chlorella pyrenoidosa, which offers high degree consistency...

10.1021/acs.langmuir.5b03081 article EN Langmuir 2015-10-08

A new fungus isolate was discovered in an arbuscular mycorrhizal fungal spore from a desert soil India. It could easily be cultivated on various synthetic media, and formed pear-shaped chlamydospores. Inoculation of maize showed that the colonized root cortex. Since it did not resemble any known based morphology ultrastructure, genus described. For its characteristic structure named Piriformospora indica. Electron microscopy revealed presence typical dolipores with continuous parenthesomes,...

10.2307/3761331 article EN Mycologia 1998-09-01

Increasing evidence shows that nitric oxide (NO), a typical signaling molecule plays important role in development of plant and bacteria-plant interaction. In the present study, we tested effect sodium nitroprusside (SNP)-a donor, on bacterial metabolism its establishment PGPR-plant interaction under salinity condition. adopted methods namely, biofilm formation assay, GC-MS analysis volatiles, chemotaxis assay root exudates (REs), measurement electrolyte leakage lipid peroxidation,...

10.1002/jobm.201600188 article EN Journal of Basic Microbiology 2016-07-21

Piriformospora indica , an endophytic fungus of the Sebacinaceae family, colonizes roots a wide variety plant species and promotes their growth, in manner similar to arbuscular mycorrhizal fungi. The results present study demonstrate that interacts also with non‐mycorrhizal host Arabidopsis thaliana its growth. interaction is detectable by appearance strong autofluorescence roots, followed colonization root cells fungal hyphae generation chlamydospores. Promotion growth was even before...

10.1111/j.1399-3054.2004.00424.x article EN Physiologia Plantarum 2004-11-25

Piriformospora indica is an endophytic fungus that colonizes the roots of many plant species, including Arabidopsis. We exposed 18-day-old Arabidopsis seedlings, which were either cocultivated with or mock-treated for last 9 days, to mild drought stress 84 h. During first 36 48 h, seedlings continued grow, while uncolonized controls did not. This results in a threefold difference fresh weight and more than twofold chlorophyll content. The photosynthetic efficiency was only slightly reduced...

10.1094/mpmi-21-6-0799 article EN Molecular Plant-Microbe Interactions 2008-05-08

Piriformospora indica, an endophytic fungus of the Sebacinaceae family, promotes growth Arabidopsis and tobacco seedlings stimulates nitrogen accumulation expression genes for nitrate reductase starch-degrading enzyme glucan-water dikinase (SEX1) in roots. Neither promotion nor stimulation two enzymes requires heterotrimeric G proteins. P. indica also uidA gene under control (Nia2) promoter transgenic seedlings. At least regions (–470/–439 –103/–89) are important Nia2 activity One contains...

10.1074/jbc.m500447200 article EN cc-by Journal of Biological Chemistry 2005-02-15

A new fungus isolate was discovered in an arbuscular mycorrhizal fungal spore from a desert soil India. It could easily be cultivated on various synthetic media, and formed pear-shaped chlamydospores. Inoculation of maize showed that the colonized root cortex. Since it did not resemble any known based morphology ultrastructure, genus described. For its characteristic structure named Piriformospora indica. Electron microscopy revealed presence typical dolipores with continuous parenthesomes,...

10.1080/00275514.1998.12026983 article EN Mycologia 1998-09-01

Arabidopsis growth and reproduction are stimulated by the endophytic fungus Piriformospora indica. The produces low amounts of auxins, but auxin levels expression auxin-regulated genes not altered in colonized roots. Also, mutants with reduced (ilr1-1, nit1-3, tfl2, cyp79 b2b3) respond to P. However, rescues dwarf phenotype overproducer sur1-1 converting free into conjugates, which also results downregulation auxin-induced IAA6 upregulation indica-induced LRR1 gene. relatively high...

10.1094/mpmi-21-10-1371 article EN Molecular Plant-Microbe Interactions 2008-09-11

*The endophytic fungus Piriformospora indica colonizes the roots of model plant Arabidopsis thaliana and promotes its growth seed production. The can be cultivated in axenic culture without a host, therefore this is an excellent system to investigate plant-fungus symbiosis. etr1, ein2 ein3/eil1 mutant plants was not promoted or even inhibited by fungus; produced less seeds were more colonized compared with wild-type. This correlates mild activation defence responses. overexpression ETHYLENE...

10.1111/j.1469-8137.2009.03149.x article EN New Phytologist 2010-01-15

Silver nanoparticle (AgNP) was synthesized using the cell free extract of Scenedesmus abundans with AgNO 3 . The silver nanoparticles were characterized by UV-visible spectroscopy, dynamic light scattering (DLS), scanning electron microscopy (SEM), and Photoluminescence. Bioreduction Ag + ions showed a gradual change in colour having range 420–440 nm under spectrum. antibacterial efficacy assessed against pathogenic bacteria E. coli, Klebsiella pneumoniae, Aeromonas hydrophila present study...

10.1155/2014/689419 article EN cc-by Journal of Nanoparticles 2014-09-14

This study was undertaken to investigate the influence of plant probiotic fungus Piriformospora indica on medicinal C. forskohlii. Interaction forskohlii with root endophyte P. under field conditions, results in an overall increase aerial biomass, chlorophyll contents and phosphorus acquisition. The also promoted inflorescence development, consequently amount p-cymene increased. Growth thickness reduced treated plants as they became fibrous, but developed more lateral roots. Because smaller...

10.4161/psb.7.1.18472 article EN Plant Signaling & Behavior 2012-01-01

Piriformospora indica association has been reported to increase biotic as well abiotic stress tolerance of its host plants. We analyzed the beneficial effect P. on rice seedlings during high salt conditions (200 and 300 mM NaCl). The growth parameters such root shoot lengths or fresh dry weights were found be enhanced in indica-inoculated compared with non-inoculated control seedlings, irrespective whether they are exposed not. However, salt-stressed performed much better presence fungus...

10.4161/psb.26891 article EN Plant Signaling & Behavior 2013-10-01

Summary Piriformospora indica , an endophyte of the Sebacinaceae family, promotes growth and seed production many plant species, including Arabidopsis. Growth a T‐DNA insertion line in PYK10 is not promoted plants do produce more seeds presence P. although their roots are colonized by fungus than wild‐type roots. Overexpression mRNA did affect root colonization response to fungus. codes for root‐ hypocotyl‐specific β‐glucosidase/myrosinase, which implicated be involved defences against...

10.1111/j.1365-313x.2008.03424.x article EN The Plant Journal 2008-01-31
Coming Soon ...