Rubralactone, Rubralides A, B and C, and Rubramin Produced by Penicillium rubrum

Yasuo KIMURA; Takashi YOSHINARI; Hiroyuki KOSHINO; Shozo FUJIOKA; Katsuhide OKADA; Atsumi SHIMADA

doi:10.1271/bbb.70112

This article has now been updated. Please use the final version.

Rubralactone, Rubralides A, B and C, and Rubramin Produced by Penicillium rubrum

Yasuo KIMURA, Takashi YOSHINARI, Hiroyuki KOSHINO, Shozo FUJIOKA, Katsuhide OKADA, Atsumi SHIMADA

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Keywords: rubralactone, rubralides, rubramin, Penicillium rubrum

JOURNAL FREE ACCESS Advance online publication

Article ID: 70112

DOI https://doi.org/10.1271/bbb.70112

The final version of this article is now available: Vol. 71 (2007) , No. 8 p.1896

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Abstract

Rubralactone (1), rubralides A, B and C (2–4), rubramin (5), and 2-formyl-3,5-dihydroxy-4-methylbenzoic acid (6), were isolated from Penicillium rubrum, and their structures established by spectroscopic methods including 2D NMR. The effects on plant growth of 1–6 were examined using the lettuce seedling bioassay. Compound 1 promoted root growth. Compounds 2, 3 and 5 inhibited the growth of lettuce seedlings, but 4 and 6 did not have any inhibitory effect on their growth.

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