Publication:
Plant growth-promoting traits of epiphytic and endophytic yeasts isolated from rice and sugar cane leaves in Thailand

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Issued Date

2014

Resource Type

Article

File Type

application/pdf

ISSN

18786146

DOI

10.1016/j.funbio.2014.04.010

Other identifier(s)

2-s2.0-84905733115

Rights Holder(s)

Scopus

Bibliographic Citation

Fungal Biology. Vol 118, No.8 (2014), p.683-694

Suggested Citation

Nutaratat P., Srisuk N., Arunrattiyakorn P., Limtong S. Plant growth-promoting traits of epiphytic and endophytic yeasts isolated from rice and sugar cane leaves in Thailand. Fungal Biology. Vol 118, No.8 (2014), p.683-694. doi:10.1016/j.funbio.2014.04.010 Retrieved from: https://hdl.handle.net/20.500.14740/6462

Title

Plant growth-promoting traits of epiphytic and endophytic yeasts isolated from rice and sugar cane leaves in Thailand

Author(s)

Nutaratat P.
 Srisuk N.
 Arunrattiyakorn P.
 Limtong S.

Abstract

A total of 1035 yeast isolates, obtained from rice and sugar cane leaves, were screened primarily for indole-3-acetic acid (IAA) production. Thirteen isolates were selected, due to their IAA production ranging from 1.2 to 29.3mgg-1 DCW. These isolates were investigated for their capabilities of calcium phosphate and ZnO3 solubilisation, and also for production of NH3, polyamine, and siderophore. Their 1-aminocyclopropane-1-carboxylate (ACC) deaminase, catalase and fungal cell wall-degrading enzyme activities were assessed. Their antagonism against rice fungal pathogens was also evaluated. Strain identification, based on molecular taxonomy, of the thirteen yeast isolates revealed that four yeast species - i.e. Hannaella sinensis (DMKU-RP45), Cryptococcus flavus (DMKU-RE12, DMKU-RE19, DMKU-RE67, and DMKU-RP128), Rhodosporidium paludigenum (DMKU-RP301) and Torulaspora globosa (DMKU-RP31) - were capable of high IAA production. Catalase activity was detected in all yeast strains tested. The yeast R. paludigenum DMKU-RP301 was the best IAA producer, yielding 29.3mgg-1 DCW, and showed the ability to produce NH3 and siderophore. Different levels of IAA production (7.2-9.7mgg-1 DCW) were found in four strains of C. flavus DMKU-RE12, DMKU-RE19, and DMKU-RE67, which are rice leaf endophytes, and strain DMKU-RP128, which is a rice leaf epiphyte. NH3 production and carboxymethyl cellulase (CMCase) activity was also detected in these four strains. Antagonism to fungal plant pathogens and production of antifungal volatile compounds were exhibited in T. globosa DMKU-RP31, as well as a moderate level of IAA production (4.9mgg-1 DCW). The overall results indicated that T. globosa DMKU-RP31 might be used in two ways: enhancing plant growth and acting as a biocontrol agent. In addition, four C. flavus were also found to be strains of interest for optimal IAA production. © 2014 .

Subject(s)

Biochemistry
 Biocontrol agent
 Biotechnology
 Endophyte
 Enzyme activity
 Epiphyte
 Growth rate
 Hormone
 Leaf
 Rice
 Sugar cane
 Yeast
 Antagonism
 Cells and cell components
 Chemical compound
 Inorganic compound
 Isolated population
 Pathogen
 Thailand
 Cryptococcus flavus
 Rhodosporidium
 Rhodosporidium paludigenum
 Saccharum
 Torulaspora
 Torulaspora globosa
 Ammonia
 Calcium phosphate
 Catalase
 Indoleacetic acid
 Indoleacetic acid derivative
 Phytohormone
 Polyamine
 Siderophore
 Zinc oxide
 Classification
 Endophyte
 Growth, development and aging
 Isolation and purification
 Metabolism
 Microbiology
 Plant development
 Plant leaf
 Rice
 Sugarcane
 Thailand
 Yeast
 Ammonia
 Calcium Phosphates
 Catalase
 Endophytes
 Indoleacetic Acids
 Oryza sativa
 Plant Development
 Plant Growth Regulators
 Plant Leaves
 Polyamines
 Saccharum
 Siderophores
 Thailand
 Yeasts
 Zinc Oxide

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URI

https://hdl.handle.net/20.500.14740/6462

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Scopus: Year 1983-2021

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