Abstract:
:Effects of in situ extraction, fungal elicitation, a permeabilizing agent, and the oxygen transfer rate on shikonin production in transformed suspension and hairy root cultures of Lithospermum erythrorhizon were studied. Shikonin production with in situ extraction in transformed cell and hairy root cultures by n-hexadecane was 7.6 and 3 times higher than those of the control culture. Shikonin production of transformed L. erythrohizon increased with the enhanced gas exchange, and in situ extraction also increased sucrose consumption and shikonin production. The optimal volume of n-hexadecane in the hairy root culture was similar to that in the transformed cell cultures. In situ extraction at an earlier stage significantly enhanced shikonin production both in transformed cell and hairy root cultures. Dimethylsulfoxide used as a permeabilizing agent was harmful to cell growth and shikonin production, and permeabilizing was unnecessary when in situ extraction was applied. This occurred because with the solvent addition, most shikonin was spontaneously released from the cells and was dissolved in the solvent layer. The combined addition of n-hexadecane of the extract of the fungus Penicillium as an elicitor seemed to result in a higher production of shikonin both in cell suspensions and transformed root cultures. However, an increase of shikonin induction by fungal elicitation in a hairy root culture was not significant in comparison with that of normal cell cultures.
journal_name
Ann N Y Acad Scijournal_title
Annals of the New York Academy of Sciencesauthors
Sim SJ,Kim DJ,Chang HNdoi
10.1111/j.1749-6632.1994.tb44395.xsubject
Has Abstractpub_date
1994-11-30 00:00:00pages
442-54eissn
0077-8923issn
1749-6632journal_volume
745pub_type
杂志文章abstract::The present experiments were conducted to determine the effects of neurotensin on secretion of a variety of anterior pituitary hormones. Conscious rats with indwelling cannulae in the third ventricle and external jugular vein were used and the effects on plasma hormone levels measured by radioimmunoassay. Neurotensin ...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.1982.tb31567.x
更新日期:1982-01-01 00:00:00
abstract::There is a significant increase in the percentage and absolute number of activated lymphocytes (OKT10+, IL2R1+) after ECT treatment of major depressive disorder. There is an acute decrease in the absolute number of total lymphocytes, T8+ and Leu11+ cells one hour after a single ECT. ...
journal_title:Annals of the New York Academy of Sciences
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journal_title:Annals of the New York Academy of Sciences
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journal_title:Annals of the New York Academy of Sciences
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journal_title:Annals of the New York Academy of Sciences
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journal_title:Annals of the New York Academy of Sciences
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journal_title:Annals of the New York Academy of Sciences
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journal_title:Annals of the New York Academy of Sciences
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journal_title:Annals of the New York Academy of Sciences
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journal_title:Annals of the New York Academy of Sciences
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journal_title:Annals of the New York Academy of Sciences
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更新日期:2002-06-01 00:00:00
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journal_title:Annals of the New York Academy of Sciences
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journal_title:Annals of the New York Academy of Sciences
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journal_title:Annals of the New York Academy of Sciences
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journal_title:Annals of the New York Academy of Sciences
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journal_title:Annals of the New York Academy of Sciences
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更新日期:1998-10-23 00:00:00
abstract::Our paper reviews recent progress in the study and understanding of observed trends in extreme rainfall events in the Metropolitan Area of São Paulo (MASP). These are discussed in relation to hydrometeorological hazards that trigger natural disasters, such as flash floods, landslides, and droughts, that affect the pop...
journal_title:Annals of the New York Academy of Sciences
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journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
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更新日期:2000-01-01 00:00:00
abstract::It is well known that women with breast cancer who undergo therapies beyond the surgical intervention (adjuvant chemotherapy, hormone therapy, or both) often suffer from the lack of estrogen, manifesting as climacteric symptoms in either treated premenopausal or postmenopausal women. Although HRT (hormone replacement ...
journal_title:Annals of the New York Academy of Sciences
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更新日期:2006-12-01 00:00:00
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journal_title:Annals of the New York Academy of Sciences
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更新日期:2016-09-01 00:00:00
abstract::The computation of ITD begins with preservation of the phase angle of spectral components by eighth-nerve fibers and by cells of the nucleus magnocellularis. At the level of the nucleus laminaris, the difference in phase angle of corresponding spectral components in the left and right ears is extracted. At the next le...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
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更新日期:1989-01-01 00:00:00
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journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
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更新日期:2002-11-01 00:00:00
abstract::To test whether the development of emotional resilience is a function of sensitive caregiving and child negative affect, we tested the joint contributions of 7-month maternal sensitivity and infant negative affect to the prediction of 33-month emotional resilience across the first 3 years of life. The aims of this stu...
journal_title:Annals of the New York Academy of Sciences
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更新日期:2006-12-01 00:00:00
abstract::Red spruce (Picea rubens Sarg.) and balsam fir (Abies balsamea (L.) Mill.) were present by 13,700 years B.C.E. in the Catskills Mountains of southeastern New York State. These conifers were, and still are, largely confined to the eastern and far western portions of the region. A gap in the distribution exists between ...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
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更新日期:2013-09-01 00:00:00