Phosphate-solubilizing characteristics of yeasts

C. Y. Kuo, S. F. Fu, F. C. Chou, R. Y. Chen, Jui Yu Chou

Research output: Contribution to journalArticle

Abstract

Phosphorus (P) is an essential element for plant development and metabolism. Because of its low availability and mobility in soils, it is often a limiting nutrient of plant growth. When phosphorus content in soil is insufficient, symptoms of phosphorus deficiency can appear, such as purple spots on leaves and stems or inhibition of development and maturation. To provide adequate nutrients for plant growth, appropriate fertilizers should be applied. However, overuse of chemical fertilizers can cause unanticipated environmental effects. To decrease the negative environmental effects resulting from continued use of chemical fertilizers, we can inoculate plants with phosphate-solubilizing microorganisms. Phosphate-solubilizing microorganisms are crucial in dissolving fertilizer phosphorus and bound phosphorus in soil in a manner that is both environmentally friendly and sustainable. In this study, we selected yeasts with calcium-phosphate-solubilizing ability and found that this ability to be regulated by environmental factors (e.g. amount of soluble phosphate, liquid or solid agar plates condition, and type of inorganic phosphate). Arabidopsis thaliana was inoculated with selected yeasts; we found that Cryptococcus laurentii (JYC370) promoted plant growth in an inorganic phosphate (Pi)-deficient medium supplemented with calcium phosphate dibasic dihydrate. The amount of cellular inorganic phosphate was also higher in yeast-treated plants than in control plants grown in the Pi-deficient medium. This result reveals the potential of these strains for biofertilizer applications and commercial use as biofertilizer agents in the future.

Original languageEnglish
Pages (from-to)1117-1131
Number of pages15
JournalMycosphere
Volume9
Issue number6
DOIs
Publication statusPublished - 2018 Jan 1

Fingerprint

solubilization
yeast
phosphate
phosphates
yeasts
phosphate (inorganic)
phosphorus
calcium phosphates
biofertilizers
biofertilizer
plant growth
fertilizers
environmental effect
Cryptococcus laurentii
microorganisms
microorganism
calcium
soil
fertilizer
phosphorus fertilizers

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Plant Science

Cite this

Kuo, C. Y. ; Fu, S. F. ; Chou, F. C. ; Chen, R. Y. ; Chou, Jui Yu. / Phosphate-solubilizing characteristics of yeasts. In: Mycosphere. 2018 ; Vol. 9, No. 6. pp. 1117-1131.
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Phosphate-solubilizing characteristics of yeasts. / Kuo, C. Y.; Fu, S. F.; Chou, F. C.; Chen, R. Y.; Chou, Jui Yu.

In: Mycosphere, Vol. 9, No. 6, 01.01.2018, p. 1117-1131.

Research output: Contribution to journalArticle

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