NDLI: Characterization of an Endophytic Gloeosporium sp. and Its Novel Bioactivity with “Synergistans”

Content Provider	Springer Nature Link
Author	Schaible, George A. Strobel, Gary A. Mends, Morgan Tess Geary, Brad Sears, Joe
Copyright Year	2014
Abstract	Gloeosporium sp. (OR-10) was isolated as an endophyte of Tsuga heterophylla (Western hemlock). Both ITS and 18S sequence analyses indicated that the organism best fits either Hypocrea spp. or Trichoderma spp., but neither of these organisms possess conidiophores associated with acervuli, in which case the endophytic isolate OR-10 does. Therefore, the preferred taxonomic assignment was primarily based on the morphological features of the organism as one belonging to the genus Gloeosporium sp. These taxonomic observations clearly point out that limited ITS and 18S sequence information can be misleading when solely used in making taxonomic assignments. The volatile phase of this endophyte was active against a number of plant pathogenic fungi including Phytophthora palmivora, Rhizoctonia solani, Ceratocystis ulmi, Botrytis cinerea, and Verticillium dahliae. Among several terpenes and furans, the most abundantly produced compound in the volatile phase was 6-pentyl-2H-pyran-2-one, a compound possessing antimicrobial activities. When used in conjunction with microliter amounts of any in a series of esters or isobutyric acid, an enhanced inhibitory response occurred with each test fungus that was greater than that exhibited by Gloeosporium sp. or the compounds tested individually. Compounds behaving in this manner are hereby designated “synergistans.” An expression of the “median synergistic effect,” under prescribed conditions, has been termed the mSE50. This value describes the amount of a potential synergistan that is required to yield an additional median 50 % inhibition of a target organism. In this report, the mSE50s are reported for a series of esters and isobutyric acid. The results indicated that isoamyl acetate, allyl acetate, and isobutyric acid generally possessed the lowest mSE50 values. The value and potential importance of these microbial synergistic effects to the microbial environment are also discussed.
Starting Page	41
Ending Page	50
Page Count	10
File Format	PDF
ISSN	00953628
Journal	Microbial Ecology
Volume Number	70
Issue Number	1
e-ISSN	1432184X
Language	English
Publisher	Springer US
Publisher Date	2014-12-11
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Synergistans 6-Pentyl-2H-pyran-2-one Gloeosporium sp. Endophytes Median synergistic effect (mSE50) Microbiology Ecology Microbial Ecology Geoecology/Natural Processes Nature Conservation Water Quality/Water Pollution
Content Type	Text
Resource Type	Article
Subject	Soil Science Ecology Ecology, Evolution, Behavior and Systematics

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

An Endophytic Phomopsis sp. Possessing Bioactivity and Fuel Potential with its Volatile Organic Compounds

Culturable Endophytes of Medicinal Plants and the Genetic Basis for Their Bioactivity

Surfactin, Iturin, and Fengycin Biosynthesis by Endophytic Bacillus sp. from Bacopa monnieri

Microbial Ecology Update

Endophytic Bacteria Associated with Growing Shoot Tips of Banana (Musa sp.) cv. Grand Naine and the Affinity of Endophytes to the Host

Influence of Illumination on Settlement of Diatom Navicula sp.

Geographical and Temporal Changes of Foliar Fungal Endophytes Associated with the Invasive Plant Ageratina adenophora

Fungal Endophytes of Aquatic Macrophytes: Diverse Host-Generalists Characterized by Tissue Preferences and Geographic Structure

Abundance and Novel Lineages of Thraustochytrids in Hawaiian Waters

Characterization of an Endophytic Gloeosporium sp. and Its Novel Bioactivity with “Synergistans”

Similar Documents

An Endophytic Phomopsis sp. Possessing Bioactivity and Fuel Potential with its Volatile Organic Compounds

Culturable Endophytes of Medicinal Plants and the Genetic Basis for Their Bioactivity

Surfactin, Iturin, and Fengycin Biosynthesis by Endophytic Bacillus sp. from Bacopa monnieri

Microbial Ecology Update

Endophytic Bacteria Associated with Growing Shoot Tips of Banana (Musa sp.) cv. Grand Naine and the Affinity of Endophytes to the Host

Influence of Illumination on Settlement of Diatom Navicula sp.

Geographical and Temporal Changes of Foliar Fungal Endophytes Associated with the Invasive Plant Ageratina adenophora

Fungal Endophytes of Aquatic Macrophytes: Diverse Host-Generalists Characterized by Tissue Preferences and Geographic Structure

Abundance and Novel Lineages of Thraustochytrids in Hawaiian Waters

Characterization of an Endophytic Gloeosporium sp. and Its Novel Bioactivity with “Synergistans”