Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Articles: DFG German National Licenses  (3)
  • CD48  (1)
  • Carpinus laxiflora  (1)
  • GTP binding protein  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Shoot structure and dynamics of saplings and canopies of three deciduous broad-leaved trees of a coppice forest in central Japan (2000)
    Springer
    Trees 14 (2000), S. 206-214 
    Details
    ISSN: 0931-1890
    Keywords: Key words  Castanea crenata ; Carpinus laxiflora ; Quercus serrata. ; Shoot phenology ; Shoot elongation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract  Three deciduous broad-leaved trees, Quercus serrata, Castanea crenata and Carpinus laxiflora, were the main constituents of a coppice forest in central Japan. The shoot elongation and leaf emergence modes of both saplings and the canopy of the three species were investigated. The shoot elongation modes of Q. serrata and C. crenata were the same in saplings and the upper layer of the canopy. The second shoots of these two species were formed after the first shoots were elongated. C. laxiflora was different between saplings and the upper layer of the canopy. In saplings, only the first shoots took a long time to elongate. In the upper canopy layer, higher order shoots were formed in the same way as in the other two species. In the lower layer of the canopy, all three species showed the same shoot elongation mode, in which only the first shoot and its duration of elongation was short. Leaf longevity, individual leaf area, leaf mass per unit leaf area and the stem mass per unit stem length of C. laxiflora were significantly shorter or significantly smaller than those of Q. serrata and C. crenata. The length of the stem per unit leaf area of C. laxiflora was three times that of Q. serrata and five times that of C. crenata. The elongation growth of C. laxiflora was highly efficient as it occurred with a small leaf area. The shoot dynamics and the shoot structure of C. laxiflora are more suitable for elongation growth than in Q. serrata and C. crenata. Furthermore, the shoot structures of the three species were compared and ecological characteristics of the three species are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/PL00009764
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Murine epidermal Langerhans cells express CD48, which is a counter-receptor for mouse CD2 (1995)
    Springer
    Archives of dermatological research 287 (1995), S. 524-528 
    Details
    ISSN: 1432-069X
    Keywords: CD48 ; Mouse CD2 ; Langerhans cell ; LFA-3
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract It has recently been demonstrated that CD48, which is expressed on T cells, B cells, thymocytes and splenocytes, is a ligand for mouse CD2 and that it can function as one of the costimulatory molecules in the activation of T cells. In this study, we examined the expression of CD48 on epidermal Langerhans cells (LC), which are potent antigen-presenting cells in the skin. Both freshly isolated and short-term-cultured LC were shown to express CD48 by flow cytometry. In contrast to most of the adhesion molecules expressed on LC, CD48 expression on short-term-cultured LC did not differ significantly from that on freshly isolated LC. We also examined the contribution of CD48 to antigen presentation by LC. We stimulated the myoglobin-specific T-cell clone, TK.G4, and allogeneic splenic T cells with freshly isolated LC and cultured LC, respectively, in the presence of various concentrations of anti-CD48 monoclonal antibody (mAb). Even at the concentration of 30 μg/ml, however, the anti-CD48 mAb did not show any inhibitory effects on either allogeneic or antigen-specific T-cell proliferation, whereas at a concentation 10 μg/ml, the anti-CD48 mAb significantly suppressed the proliferation of spleen cells stimulated with phytohaemagglutinin (PHA). These findings show that LC persistently express CD48, although its direct role in antigen presentation has not yet been clarified in vitro.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00374070
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Imbalance of the Gs and Gi/o function in post-mortem human brain of depressed patients (1993)
    Springer
    Journal of neural transmission 94 (1993), S. 63-69 
    Details
    ISSN: 1435-1463
    Keywords: Depression ; GTP binding protein ; human brain ; photoaffmity labeling ; signal transduction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The amounts of various G protein subunits in postmortem brain samples from the parietal and temporal cortices were the same in controls and depressive patients as demonstrated by immunoblotting. However, photoaffinity GTP labeling (AAGTP) of Gi/oα, but not Gsα, was significantly increased in depressives in both cortex regions. Furthermore, the ratio of Gs/Gi/o AAGTP incorporation revealed a significant reduction in depressives in these regions. The present findings suggest that an imbalance of second messengers via G protein function may be involved in the pathophysiology of depression.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01244984
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...