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The effects of low concentrations of the enantiomers of mushroom alcohol (1-octen-3-ol) on Arabidopsis thaliana.

Hung R, Lee S, Bennett JW - Mycology (2014)

Bottom Line: Far less is known about its effects on plants.In addition, 1-, 2-, 3-, and 4-week-old A. thaliana plants also were exposed to 1 mg/1 of the compounds for the same period of time.Young plants exposed to 1 mg/1 of the R and S enantiomers of 1-octen-3-ol exhibited a mild inhibition of growth and chlorophyll production at 2 and 3 weeks but not at 4 weeks.

View Article: PubMed Central - PubMed

Affiliation: Department of Plant Biology and Pathology, Rutgers, The State University of New Jersey, 59 Dudley Rd., New Brunswick, 08901, NJ, USA.

ABSTRACT
"Mushroom alcohol," or 1-octen-3-ol, is a common fungal volatile organic compound (VOC) that has been studied for its flavor properties, its effects on fungal spore germination, mushroom development, and as a signaling agent for insects. Far less is known about its effects on plants. We exposed Arabidopsis thaliana seeds, under conditions conducive to germination, to high (10 and 100 mg/1) and low concentrations (1, 2, and 3 mg/1) of racemic, S, and R forms of 1-octen-3-ol for 3 days. In addition, 1-, 2-, 3-, and 4-week-old A. thaliana plants also were exposed to 1 mg/1 of the compounds for the same period of time. Seedling formation was retarded with all tested levels of exposure to 1-octen-3-ol for both enantiomers and the racemer, while 95% of unexposed control seeds germinated to seedling within 3 days. There was a dose-dependent response in the reduction of seedling formation between 1 mg/1 and 3 mg/1 of exposure. When exposed seeds were removed from the VOC, nearly all resumed germination. Young plants exposed to 1 mg/1 of the R and S enantiomers of 1-octen-3-ol exhibited a mild inhibition of growth and chlorophyll production at 2 and 3 weeks but not at 4 weeks.

No MeSH data available.


Related in: MedlinePlus

Stages of seedling formation in A. thaliana. (a) No germination (Stage 1). (b) Germination: broken seed coat (Stage 2). (c) Radicle emergence: <1 mm (Stage 3). (d) Extended radicle: >1 mm (Stage 4). (e) Full seedling formation: green cotyledons, long root (Stage 5).
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Figure 1: Stages of seedling formation in A. thaliana. (a) No germination (Stage 1). (b) Germination: broken seed coat (Stage 2). (c) Radicle emergence: <1 mm (Stage 3). (d) Extended radicle: >1 mm (Stage 4). (e) Full seedling formation: green cotyledons, long root (Stage 5).

Mentions: The seeds were exposed for 72 hours and then removed from the culture vessels, examined under a binocular microscope, and scored into five germination-to-seedling stages as follows: 1 = no visible germination; seed coat (testa) intact; 2 — initial testa rupture; 3 = radicle emergence (<1 mm); 4: extended radicle (>1 mm); 5 = cotyledon visible; complete germination to seeding (see Figure 1).


The effects of low concentrations of the enantiomers of mushroom alcohol (1-octen-3-ol) on Arabidopsis thaliana.

Hung R, Lee S, Bennett JW - Mycology (2014)

Stages of seedling formation in A. thaliana. (a) No germination (Stage 1). (b) Germination: broken seed coat (Stage 2). (c) Radicle emergence: <1 mm (Stage 3). (d) Extended radicle: >1 mm (Stage 4). (e) Full seedling formation: green cotyledons, long root (Stage 5).
© Copyright Policy - open-access
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC4066924&req=5

Figure 1: Stages of seedling formation in A. thaliana. (a) No germination (Stage 1). (b) Germination: broken seed coat (Stage 2). (c) Radicle emergence: <1 mm (Stage 3). (d) Extended radicle: >1 mm (Stage 4). (e) Full seedling formation: green cotyledons, long root (Stage 5).
Mentions: The seeds were exposed for 72 hours and then removed from the culture vessels, examined under a binocular microscope, and scored into five germination-to-seedling stages as follows: 1 = no visible germination; seed coat (testa) intact; 2 — initial testa rupture; 3 = radicle emergence (<1 mm); 4: extended radicle (>1 mm); 5 = cotyledon visible; complete germination to seeding (see Figure 1).

Bottom Line: Far less is known about its effects on plants.In addition, 1-, 2-, 3-, and 4-week-old A. thaliana plants also were exposed to 1 mg/1 of the compounds for the same period of time.Young plants exposed to 1 mg/1 of the R and S enantiomers of 1-octen-3-ol exhibited a mild inhibition of growth and chlorophyll production at 2 and 3 weeks but not at 4 weeks.

View Article: PubMed Central - PubMed

Affiliation: Department of Plant Biology and Pathology, Rutgers, The State University of New Jersey, 59 Dudley Rd., New Brunswick, 08901, NJ, USA.

ABSTRACT
"Mushroom alcohol," or 1-octen-3-ol, is a common fungal volatile organic compound (VOC) that has been studied for its flavor properties, its effects on fungal spore germination, mushroom development, and as a signaling agent for insects. Far less is known about its effects on plants. We exposed Arabidopsis thaliana seeds, under conditions conducive to germination, to high (10 and 100 mg/1) and low concentrations (1, 2, and 3 mg/1) of racemic, S, and R forms of 1-octen-3-ol for 3 days. In addition, 1-, 2-, 3-, and 4-week-old A. thaliana plants also were exposed to 1 mg/1 of the compounds for the same period of time. Seedling formation was retarded with all tested levels of exposure to 1-octen-3-ol for both enantiomers and the racemer, while 95% of unexposed control seeds germinated to seedling within 3 days. There was a dose-dependent response in the reduction of seedling formation between 1 mg/1 and 3 mg/1 of exposure. When exposed seeds were removed from the VOC, nearly all resumed germination. Young plants exposed to 1 mg/1 of the R and S enantiomers of 1-octen-3-ol exhibited a mild inhibition of growth and chlorophyll production at 2 and 3 weeks but not at 4 weeks.

No MeSH data available.


Related in: MedlinePlus