Zeitschrift für Pflanzenphysiologie最新文献_第8页

The Hormonal Regulation of Protonema Development in Mosses 苔藓植物原丝体发育的激素调控

Zeitschrift für Pflanzenphysiologie Pub Date : 1984-03-01 DOI: 10.1016/S0044-328X(84)80099-9

Martin Bopp

引用次数: 48

Net Photosynthetic CO2 Compensation Concentrations of Some Lichens 某些地衣的净光合CO2补偿浓度

Zeitschrift für Pflanzenphysiologie Pub Date : 1984-03-01 DOI: 10.1016/S0044-328X(84)80077-X

H. Bauer

{"title":"Net Photosynthetic CO2 Compensation Concentrations of Some Lichens","authors":"H. Bauer","doi":"10.1016/S0044-328X(84)80077-X","DOIUrl":"10.1016/S0044-328X(84)80077-X","url":null,"abstract":"<div>CO2 compensation concentrations (Γ) and rates of net photosynthetic CO2 uptake and of respiration in light and darkness were determined at 20°C, 300 μmol photons m-2s-1 and 21% O2 in some foliose and fruticose lichens. Large differences were found in the values of F which ranged between 5 and 70 μl CO2 l-1 air. Γ values higher than typical for vascular C3 plants (30 to 35 μll-1 under the same conditions) may be due to fungal respiration but were found in foliose and fruticose lichens irrespective of the mass proportion of the phycobiont to mycobiont. Low Γ levels were detected in a lichen with a cyanobacterium as phycobiont (Peltigera polydactyla) but also in lichens with green algae (Cladonia rangiferina, C stellaris, Evernia prunastri). In low Γ species with green algae a dense plectenchyma of fungal hyphae forms the thallus surface and this high diffusive resistance may assist a CO2-concentrating mechanism. There was no correlation between the values of Γ and the absolute rates of the other CO2 exchange parameters investigated.</div>","PeriodicalId":23797,"journal":{"name":"Zeitschrift für Pflanzenphysiologie","volume":"114 1","pages":"Pages 45-50"},"PeriodicalIF":0.0,"publicationDate":"1984-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0044-328X(84)80077-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76214060","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: 10

The Influence of Leaf-aging on the Heat-sensitivity and Heat-hardening of the Photosynthetic Apparatus in Phaseolus vulgaris 叶片老化对菜豆光合器官热敏性和热硬化的影响

Zeitschrift für Pflanzenphysiologie Pub Date : 1984-03-01 DOI: 10.1016/S0044-328X(84)80095-1

Ivan T. Yordanov , Engelbert Weis

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引用次数: 11

Effect of Plant Tissue Culture Media on the Frequency of Somatic Mutations in Tradescantia Stamen Hairs 植物组织培养基对花葶草雄蕊体细胞突变频率的影响

Zeitschrift für Pflanzenphysiologie Pub Date : 1984-03-01 DOI: 10.1016/S0044-328X(84)80078-1

J. Dolezel, F.J. Novák

引用次数: 30

Kinetin Blocks Abscisic Acid-Phosphatidylethanolamine Channels in Lipid Bilayers 激动素阻断脂质双层中脱落酸-磷脂酰乙醇胺通道

Zeitschrift für Pflanzenphysiologie Pub Date : 1984-03-01 DOI: 10.1016/S0044-328X(84)80080-X

William Stillwell, Paul Hester

引用次数: 14

Differenzierungsverhalten und Stoffwechselaktivitäten in Kalluskulturen aus Stolonen und Knollen von Solanum tuberosum 宝石和结核杆菌的微积分人类和代谢活动

Zeitschrift für Pflanzenphysiologie Pub Date : 1984-03-01 DOI: 10.1016/S0044-328X(84)80081-1

A.A. Abou-Mandour, W.M. Kaiser

{"title":"Differenzierungsverhalten und Stoffwechselaktivitäten in Kalluskulturen aus Stolonen und Knollen von Solanum tuberosum","authors":"A.A. Abou-Mandour, W.M. Kaiser","doi":"10.1016/S0044-328X(84)80081-1","DOIUrl":"https://doi.org/10.1016/S0044-328X(84)80081-1","url":null,"abstract":"<div>Induction of callus formation, growth rate and differentiation pattern of calli derived from potato tuber tissue or from stolons were investigated depending on the hormone content and composition of nutrient media. Media are described giving callus induction, various types of organ differentiations (roots, shoots with or without tubers) and regenerates. Metabolic activity of various tissues was examined by following [14CO2]-fixation via the phosphoenol-pyruvate-carboxylase pathway and by studying uptake and metabolisation of U-[14C]-glucose. On a fresh weight basis, both tissues of intact potato tubers and derived calli showed a rather similar rate and labelling pattern of [14CO2]-fixation. Native potato tuber tissue, however, metabolized added U-[14C]-glucose with a much higher rate than callus tissue. Also, in the former a major part of label from U-[14C]-glucose was found in sucrose, whereas callus tissue from the same plant material showed little sucrose formation. Starch formation from U-[14C]-glucose was equally low in both kinds of tissue.</div>","PeriodicalId":23797,"journal":{"name":"Zeitschrift für Pflanzenphysiologie","volume":"114 1","pages":"Pages 77-85"},"PeriodicalIF":0.0,"publicationDate":"1984-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0044-328X(84)80081-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91645970","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: 3

Thylakoid-associated «Chlorophyll Oxidase»: Distinction from Lipoxygenase 类囊体相关«叶绿素氧化酶»:与脂氧合酶的区别

Zeitschrift für Pflanzenphysiologie Pub Date : 1984-03-01 DOI: 10.1016/S0044-328X(84)80098-7

Barbara Lüthy , Enrico Martinoia , Philippe Matile , Howard Thomas

引用次数: 51

Chemical Composition of Australian Mangroves I. Inorganic Ions and Organic Acids 澳大利亚红树林的化学组成I.无机离子和有机酸

Zeitschrift für Pflanzenphysiologie Pub Date : 1984-03-01 DOI: 10.1016/S0044-328X(84)80096-3

Marianne Popp

{"title":"Chemical Composition of Australian Mangroves I. Inorganic Ions and Organic Acids","authors":"Marianne Popp","doi":"10.1016/S0044-328X(84)80096-3","DOIUrl":"10.1016/S0044-328X(84)80096-3","url":null,"abstract":"<div>Young and old leaves from 22 mangrove species of Northern Queensland (Australia) were investigated for inorganic ions and organic acids. Na+ and Cl− concentrations expressed on plant water basis were close to sea water with the exception of Heritiera littoralis and Hibiscus tiliaceus, which are both regarded as brackish water species. Leaf age did not appear to effect Na+ and Cl− storage much. SO42− and Mg2+ increased markedly in old leaves of salt-secreting species such as Avicennia marina, Avicennia eucalyptifolia, Aegialitis annulata, Aegiceras corniculatum and Acanthus ilicifolius as well as in the members of the Rhizophoraceae.Free oxalate was found in all salt-secreting species and young leaves of Lumnitzera racemosa. Malate and citrate were present in all species, while quinate and shikimate occurred frequently. The contribution of organic acids to the anion content was important in only a few cases.Mechanisms of salt-regulation and problems in the classification of mangroves are discussed.</div>","PeriodicalId":23797,"journal":{"name":"Zeitschrift für Pflanzenphysiologie","volume":"113 5","pages":"Pages 395-409"},"PeriodicalIF":0.0,"publicationDate":"1984-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0044-328X(84)80096-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79952629","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: 80

Callus and Shoot Regeneration from Protoplasts of Proso Millet (Panicum miliaceum L.) 谷子原生质体愈伤组织和芽再生的研究

Zeitschrift für Pflanzenphysiologie Pub Date : 1984-02-01 DOI: 10.1016/S0044-328X(84)80034-3

James W. Heyser

引用次数: 43

Callus Regeneration with Protoplasts of Sorbus aucuparia L. 荆芥原生质体愈伤组织再生研究。

Zeitschrift für Pflanzenphysiologie Pub Date : 1984-02-01 DOI: 10.1016/S0044-328X(84)80044-6

Jörg Jörgensen, Horst Binding

引用次数: 10