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dc.contributor.author
Gkouletsos, Thomas
en
dc.date.accessioned
2019-03-04T09:51:40Z
dc.date.available
2019-03-05T01:00:16Z
dc.date.issued
2019-03-04
dc.identifier.uri
https://repository.ihu.edu.gr//xmlui/handle/11544/29242
dc.rights
Default License
dc.subject
Endophytes
en
dc.title
The role of endophytes in agriculture: Abiotic and biotic factors affecting their communities
en
heal.type
masterThesis
en_US
heal.secondaryTitle
Abiotic and biotic factors affecting their communities
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heal.creatorID.email
thomasgkou@yahoo.gr
heal.classification
Ecology-Soil Microbiology
en
heal.keywordURI.LCSH
Agricultural microbiology
heal.keywordURI.LCSH
Sustainable agriculture
heal.language
en
en_US
heal.access
free
en_US
heal.license
http://creativecommons.org/licenses/by-nc/4.0
en_US
heal.fileFormat
.pdf
en_US
heal.recordProvider
School of Economics, Business Administration & Legal Studies, MSc in Sustainable Agriculture and Business
en_US
heal.publicationDate
2019-02-28
heal.abstract
The dissertation was written as part of the MSc in Sustainable Agriculture and Business at the International Hellenic University. As the need for more food is growing combined with the continuously increasing global population, special interest is given to research on the sustainability of agricul-tural production. The last decade, novel strategies and practices, new substances and organisms, have been introduced in Agriculture. Among these are endophytes too, act-ing as simulators and promoters of plant growth, as protectors of plants from stresses or pests, even as BCAs. These characteristics make endophytes promising, more-eco-friendly and economically sustainable tools of agriculture. 35 studies of the last 5-year period were selected to review the factors influencing endophytic communities (host, tissue type and abiotic environment) and to discuss whether the type of tissue has greater effect on endophyte community, irrespective of the host species. Additionally, to investigate if there is an effect on endophytic community when environmental con-ditions change in small or large scale. The study revealed that host plant may be the main factor, affected directly by abiotic environment, while the type of tissue shapes further the existing endophytic community that has been recruited by host into specific plant compartments. Abiotic environment influences endophytes, too. Endophytic communities present a global ho-mogeneity, with no significant differences in the composition of their communities at the phylum level. However, this does not mean that there are no differences among the individuals of each group at the family, genus and species level shaped by local environ-mental factors. Thus, there is a general/global pattern of maintenance of endophytic community structure, regardless of the study area, which is influenced at the lower tax-onomic levels by local abiotic environmental parameters on the one hand, and by biotic on the other. At this point I would like to acknowledge and thank cordially my supervisor and the people who contributed to complete this thesis.
en
heal.tableOfContents
Contents ABSTRACT ......................................................................................................................... I PREFACE ......................................................................................................................... III CONTENTS ........................................................................................................................ V INTRODUCTION ................................................................................................................ 1 THE TERM “ENDOPHYTES” ................................................................................................. 1 THE ASSOCIATION WITH PLANTS, EVOLUTION AND ORIGIN......................................................... 2 CO-EXISTENCE AND A COMPLICATED RELATIONSHIP ................................................................. 2 ENDOPHYTIC DIVERSITY ..................................................................................................... 3 ROLES OF ENDOPHYTES RELATED TO THE PLANT ...................................................................... 5 Phytostimulation, Nutrient Cycling, Enzyme Production and Bioremediation .. 5 Antimicrobial Activity, Volatile Organic Compound, Bioactive and novel compounds production ...................................................................................... 5 Endophytes as Bio-Control Agents (BCAs) ......................................................... 6 PARAMETERS DESCRIBE BIOCOMMUNITIES ............................................................................. 7 THERE ARE SEVERAL FACTORS INFLUENCING PLANT MICROBIAL COMMUNITIES .............................. 8 ENDOPHYTES IN SUSTAINABLE AGRICULTURE ....................................................................... 10 RESEARCH ON ENDOPHYTIC BIOCOMMUNITIES AND ON THE FACTORS AFFECTING THEM ................ 10 OBJECTIVES OF THE STUDY ............................................................................................... 11 METHODS ....................................................................................................................... 13 RESULTS AND DISCUSSION ............................................................................................ 17 FACTORS STUDIED AND THEIR INFLUENCE ON ENDOPHYTIC COMMUNITIES .................................. 17 TISSUE TYPE EFFECT ON ENDOPHYTE COMMUNITIES ............................................................... 18 HOST EFFECT ON ENDOPHYTIC COMMUNITIES; CULTIVATED AND WILD PLANT SPECIES .................. 25 ABIOTIC FACTOR’S EFFECT ON ENDOPHYTIC COMMUNITIES ..................................................... 32 Temperature effect .......................................................................................... 32 Moisture effect ................................................................................................. 35 Salinity effect ................................................................................................... 36 Fertilizer application effect .............................................................................. 38 -vi- Soil texture effect ............................................................................................ 39 Effect of pH ...................................................................................................... 39 ABIOTIC FACTORS IN LARGE SCALE ..................................................................................... 40 CONCLUSIONS ................................................................................................................ 43 BIBLIOGRAPHY ............................................................................................................... 45
en
heal.advisorName
Papatheodorou, Efimia
en
heal.committeeMemberName
Papatheodorou, Efimia
en
heal.academicPublisher
IHU
en
heal.academicPublisherID
ihu
en_US
heal.numberOfPages
55
en_US


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