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conferenceseries LLC Ltd
3rd International Conference on
3rd International Conference on
Ecology, Ecosystem and Conservation Biology
Microbial Ecology & Eco Systems
&
March 18-19, 2019 | Chicago, USA
Find More Information @ MARCH 2019 Conference Series LLC Ltd
Emergence of dark
septate endophytic
fungi in microbial
world
Priyadharsini Perumalsamy
Periyar University, India
Dark septate endophytic
(DSE) fungi are diverse
facultative ascomycetes found
inside the root tissues without
any pathogenicity to the host.
Like arbuscular mycorrhizal
fungi, DSE has predominant
positive ecological roles
in plants. The DSE fungal
associations exhibit positive
effects on plant growth,
water, and nutrient uptake
especially, the least available
nutrient, phosphorus (P).
Phytohormones secretion
by the DSE adds up in
the crop improvement.
Nevertheless, the presence
of melanin in DSE has a wide
range of photoprotection
and antioxidant properties
which could scavenge
free radicals under stress
condition. Four DSE fungi,
Curvularia geniculata RSL06,
Phoma multirostrata RSL03,
P. multirostrata RSL04 and
Eurotiomycetes sp. RSL05
were isolated from roots of
different plants exposed to
light stress such as UV and a
different wavelength of lights.
The pH of the broth, biomass,
amylase enzyme and specific
activity, and their melanin
production were significantly
varied among the fungal
isolates and light conditions.
The FTIR spectroscopic
analysis of melanin in all DSE
showed distinct variation
in the functional groups.
Further, the higher radical
scavenging activity of melanin
was recorded in C. geniculata
exhibited 29.65%-51.94%
in UV and 10.52%-39.38%
in the wavelength of light.
Previously, we proved
C. geniculata improved
plant growth through
phosphate solubilization and
phytohormone production.
Hence, this study suggested
that fungal melanin acts as a
potential agent against various
light stress and contains
antioxidant activity, which
extends our knowledge to
analyze the activity of DSE
fungi under molecular level.
In the future, DSE fungi could
replace the usage of chemical
fertilizers in agriculture.
JOURNAL OF ECOSYSTEM& ECOGRAPHY 2019, VOLUME 9 | DOI: 10.4172/2157-7625-C1-045 ACCEPTED ABSTRACTS