4-Hydroxybenzyl alcohol accumulates in flowers and developing fruits of carrot and inhibits seed formation.

doi:10.1078/0176-1617-00967

Paper

4-Hydroxybenzyl alcohol accumulates in flowers and developing fruits of carrot and inhibits seed formation.

Published 2003 · Toshihiro Kobayashi, K. Higashi, H. Kamada

Journal of plant physiology

Q1 SJR score

13

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0

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Abstract

Somatic embryogenesis in carrot (Daucus carota) is autonomously inhibited by 4-hydroxybenzyl alcohol (4HBA), which is produced by embryogenic cells. Because somatic embryogenesis is used as a model of zygotic embryogenesis, we assayed for 4HBA in carrot seeds and analyzed the effect of 4HBA on seed formation to determine whether 4HBA is also produced during zygotic embryogenesis. HPLC analysis showed that 4HBA accumulated in flowers and immature and mature fruits, but not in vegetative tissues. The concentration of 4HBA was highest after flowering, when the zygote developed into the early globular-stage embryo. 4HBA accumulation then decreased with seed development. Exogenous application of 4HBA to immature carrot fruits inhibited seed formation. Many 4HBA-treated seeds did not include a mature embryo. These results indicate that the production and accumulation of 4HBA occurs during carrot seed development and that 4HBA has an inhibitory effect on carrot seed formation.

In Vitro Study

Study Snapshot

4-hydroxybenzyl alcohol accumulates in carrot flowers and fruits during seed development, inhibiting seed formation and affecting somatic embryogenesis.

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

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Paper

4-Hydroxybenzyl alcohol accumulates in flowers and developing fruits of carrot and inhibits seed formation.

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References

4-Hydroxybenzyl alcohol accumulates in suspension-cell cultures and inhibits somatic embryogenesis in carrot.

4-hydroxybenzyl alcohol (4HBA) rapidly accumulates in high-density carrot embryogenic cell cultures, inhibiting somatic embryogenesis, and its production decreases as embryos develop.

Inhibitory Effects of p-Hydroxybenzyl Alcohol on Somatic Embryogenesis in Carrot Cell Cultures

p-hydroxybenzyl alcohol strongly inhibits carrot somatic embryogenesis by suppressing cell division, playing a crucial role in embryo formation.

Purification from conditioned medium and chemical identification of a factor that inhibits somatic embryogenesis in carrot.

4-hydroxybenzyl alcohol is a major factor that accumulates in high-cell-density carrot cell cultures and inhibits somatic embryogenesis.

Phytosulphokine-α, a peptidyl plant growth factor, stimulates somatic embryogenesis in carrot

3) H-Tyr(SO 3) H, a peptidyl plant growth factor, stimulates carrot somatic embryogenesis by increasing the number of somatic embryos in conditioned medium.

C-ABI3, the carrot homologue of the Arabidopsis ABI3, is expressed during both zygotic and somatic embryogenesis and functions in the regulation of embryo-specific ABA-inducible genes.

C-ABI3, a carrot homologue of the Arabidopsis ABI3, is expressed in embryogenic cells, somatic embryos, and developing seeds, and plays a role in regulating embryo-specific ABA-inducible genes.

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