Abstract：
:We tested the activity of 11 main compounds identified from Pinus plants on the growth of Dictyostelium discoideum NC4. Four concentrations (1, 0.1, 0.01, 0.001 microg/microl) of each compound were tested using a disk volatilization technique following germination of D. discoideum NC4 spores. Photographs of D. discoideum NC4 fruiting bodies were taken 2 days after treatment. Fenchone (at 0.1, 0.01, and 0.001 microg/microl) and camphene (at 0.01 microg/microl) stimulated growth of D. discoideum NC4. (1S)-(-)-verbenone, (1S)-(-)-alpha-pinene, (+)-beta-pinene, myrcene, (-)-menthone, (-)-bornyl acetate, (S)-(+)-carvone, (-)-camphene, and (R)-(+)-limonene inhibit its growth. All of the compounds at 1 microg/microl had a strong inhibitory effect on cell growth of D. discoideum NC4. Microscopic observation of the fruiting bodies matched the results of growth rate analysis. Most of the inhibitory effects were represented by changes in the shapes of the fruiting bodies. These changes include short sorophores, smaller sized sori, and sori without spores. Our results suggest that inhibition of growth is the most common effect of monoterpenoids on D. discoideum NC4. Nevertheless, some of them, like fenchone and camphene, seem to enhance its growth.
journal_name
J Chem Ecoljournal_title
Journal of chemical ecologyauthors
Hwang JY,Kim JH,Yun KWdoi
10.1023/b:joec.0000030269.07833.8fkeywords:
subject
Has Abstractpub_date
2004-06-01 00:00:00pages
1153-63issue
6eissn
0098-0331issn
1573-1561journal_volume
30pub_type
杂志文章abstract：:Glutathione transferase activity towards various plant isothiocyanates was studied in larvae of the two generalists, fall armyworm [Spodoptera frugiperda (J.E. Smith)], and cabbage looper [Trichoplusia ni (Hübner)], and the specialist, velvetbean caterpillar (Anticarsia gemmatalis Hübner) using the midgut soluble frac...
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