Biochemie und Physiologie der Pflanzen最新文献_第4页

Biochemie und Physiologie der Pflanzen Pub Date : 1992-12-01 DOI: 10.1016/S0015-3796(11)80136-8

C. Horstmann

引用次数: 0

Biochemie und Physiologie der Pflanzen Pub Date : 1992-12-01 DOI: 10.1016/S0015-3796(11)80131-9

E.-M. Wiedenroth

引用次数: 0

Endogenous Levels of Abscisic Acid in Embryogenic Cells, Nonembryogenic Cells and Somatic Embryos of Carrot (Daucus carota L.) 胡萝卜胚性细胞、非胚性细胞和体胚中脱落酸内源水平的研究

Biochemie und Physiologie der Pflanzen Pub Date : 1992-12-01 DOI: 10.1016/S0015-3796(11)80129-0

Tomohiro Kiyosue , Masatoshi Nakajima , Isomaro Yamaguchi , Shinobu Satoh , Hiroshi Kamada , Hiroshi Harada

引用次数: 32

Effects of Nitrogen Sources on Glutamate Dehydrogenase and Glutamine Synthetase Activity in Suspension Cultures of Atropa belladonna L. 氮源对颠茄悬浮培养谷氨酸脱氢酶和谷氨酰胺合成酶活性的影响。

Biochemie und Physiologie der Pflanzen Pub Date : 1992-12-01 DOI: 10.1016/S0015-3796(11)80124-1

Maija-Liisa Salonen , Riitta Parviainen , Liisa Kaarina Simola

{"title":"Effects of Nitrogen Sources on Glutamate Dehydrogenase and Glutamine Synthetase Activity in Suspension Cultures of Atropa belladonna L.","authors":"Maija-Liisa Salonen , Riitta Parviainen , Liisa Kaarina Simola","doi":"10.1016/S0015-3796(11)80124-1","DOIUrl":"10.1016/S0015-3796(11)80124-1","url":null,"abstract":"<div>Development of glutamate dehydrogenase (GDH) and glutamine synthetase (GS) activity, as well as growth, were studied in dark-grown suspension cultures of Atropa belladonna initiated from root callus. The nutrient media contained NaNO3 (15 mM) or NH4NO3 (7.5 mM). In order to study the effect of early precursors of tropane alkaloids, the cultures were supplemented with proline or ornithine (2.5 mM) during the rapid growth phase on day 10. Growth was accelerated by NH4NO3 (days 0-13), but higher fresh and dry weights were obtained at the end of the growth period (day 30) with NaNO3. Ornithine temporarily retarded growth in NaNO3 (days 13, 16). GDH and GS were assayed on days 9, 13 and 16. Considerable GS levels were found in all cultures. However, GS activity in NaNO3 was markedly higher than in NH4NO3. In contrast, GDH activity was distinctly higher in NH4NO3 than in NaNO3. Proline and ornithine were effectively metabolized by the suspension cultures, and only transitional accumulation of these amino acids in the cells was observed after amino acid supplementation. GDH and GS were hardly affected by proline, whereas ornithine enhanced GDH activity in the NaNO3-grown cultures and decreased GS in both nutrient media.</div>","PeriodicalId":8798,"journal":{"name":"Biochemie und Physiologie der Pflanzen","volume":"188 5","pages":"Pages 283-294"},"PeriodicalIF":0.0,"publicationDate":"1992-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0015-3796(11)80124-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73436062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Biochemie und Physiologie der Pflanzen Pub Date : 1992-12-01 DOI: 10.1016/S0015-3796(11)80133-2

P. Apel

引用次数: 18

Biochemie und Physiologie der Pflanzen Pub Date : 1992-12-01 DOI: 10.1016/S0015-3796(11)80134-4

U. Wobus

引用次数: 0

Biochemie und Physiologie der Pflanzen Pub Date : 1992-12-01 DOI: 10.1016/S0015-3796(11)80132-0

E.-M. Wiedenroth

引用次数: 14

Cooperative Protection of Glucose-6-Phosphate Dehydrogenase by Ligands in Extracts from Wheat Grains 配体对小麦提取物中葡萄糖-6-磷酸脱氢酶的协同保护作用

Biochemie und Physiologie der Pflanzen Pub Date : 1992-12-01 DOI: 10.1016/S0015-3796(11)80125-3

Andreas Fischer , András Salgó, Markus Hildbrand , Urs Feller

引用次数: 8

Biochemie und Physiologie der Pflanzen Pub Date : 1992-12-01 DOI: 10.1016/S0015-3796(11)80137-X

C. Horstmann

引用次数: 0

Seasonal Changes in Carbohydrates, Lipids and Fatty Acids of Two Mediterranean Dimorphic Phrygana Species 两种地中海二态芦苇属植物碳水化合物、脂质和脂肪酸的季节变化

Biochemie und Physiologie der Pflanzen Pub Date : 1992-11-01 DOI: 10.1016/S0015-3796(11)80030-2

M.S. Meletiou-Christou, S. Rhizopoulou, S. Diamantoglou

{"title":"Seasonal Changes in Carbohydrates, Lipids and Fatty Acids of Two Mediterranean Dimorphic Phrygana Species","authors":"M.S. Meletiou-Christou, S. Rhizopoulou, S. Diamantoglou","doi":"10.1016/S0015-3796(11)80030-2","DOIUrl":"10.1016/S0015-3796(11)80030-2","url":null,"abstract":"<div>Storage patterns of soluble sugars, starch, lipids and fatty acids were investigated in leaves, stems and roots of Euphorbia acanthothamnos and Phlomis fruticosa throughout a year. Winter leaves of both species contained higher amounts of lipids than summer leaves. Leaf soluble sugar content showed two peaks (winter and summer) in P. fruticosa and a winter peak in E. acanthothamnos. Starch was mainly accumulated in young expanding winter- and summer-leaves and depleted twice over the year, during the cold winter and the drought summer, respectively. Considering stems and roots, storage substances exhibited identical fluctuations, i.e. the maximum values of lipids being recorded during winter and those of starch during spring. The molar quotient (MQ) of polyunsaturated to saturated fatty acids was low, mainly due to the high percentage of palmitic acid in all tissues of both examined species. Nevertheless, roots exhibited a different fatty acid composition than the above ground parts of the plants. The energy content of storage substances (ECS) was mainly contributed by lipids and the minimum values in both species were recorded during drought. On the basis of seasonal variation of ECS, dimorphic phrygana can be situated between mediterranean evergreen sclerophylls and central european evergreen conifers. It was presumed that in the case of dimorphic phrygana, summer seems to be a dormant period, whereas winter the investive period.</div>","PeriodicalId":8798,"journal":{"name":"Biochemie und Physiologie der Pflanzen","volume":"188 4","pages":"Pages 247-259"},"PeriodicalIF":0.0,"publicationDate":"1992-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0015-3796(11)80030-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85986831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12