@article{FischerStoecklinWeyandetal.2004,
  author    = {Fischer, Markus and St{\"o}cklin, J. and Weyand, Anne and Maurer, Katrin},
  title     = {Cultural and biological diversity of grasslands in the Swiss Alps},
  isbn      = {3-7281-2940-2},
  year      = {2004},
  language  = {en}
}
@article{WittZanorMuellerRoeber2004,
  author    = {Witt, Isabell and Zanor, Maria Ines and M{\"u}ller-R{\"o}ber, Bernd},
  title     = {Transcription factor function search : how do individual factors regulate agronomical important processes in plants? (Subproject A)},
  isbn      = {3-00-011587-0},
  year      = {2004},
  language  = {en}
}
@article{FischerLienert2004,
  author    = {Fischer, Markus and Lienert, J.},
  title     = {Experimental inbreeding reduces seed production and germination independent of fragmentation of populations of Swertia perennis},
  year      = {2004},
  language  = {en}
}
@article{MeyerMuessigAltmann2004,
  author    = {Meyer, Rhonda C. and M{\"u}ssig, Carsten and Altmann, Thomas},
  title     = {Genetic Diversity : Creation of novel genetic variants of arabidopsis},
  isbn      = {3-00-011587-0},
  year      = {2004},
  language  = {en}
}
@article{KetelhutMohassebScheffleretal.2004,
  author    = {Ketelhut, Kerstin and Mohasseb, Iman and Scheffler, Christiane and Ketelhut, Reinhard G.},
  title     = {Regular exercise improves risk profile and motor development in early childhood},
  year      = {2004},
  language  = {en}
}
@article{LagusSuomelaWeithoffetal.2004,
  author    = {Lagus, A. and Suomela, J. and Weithoff, Guntram and Heikkila, K. and Helminen, H. and Sipura, J.},
  title     = {Species-specific differences in phytoplankton responses to N and P enrichments and the N:P ratio in the Archipelago Sea, northern Baltic Sea},
  year      = {2004},
  abstract  = {A nutrient enrichment experiment was conducted in order to study the role of nitrogen (N), phosphorus (P) and the N:P ratio on the early summer phytoplankton community in the Archipelago Sea, northern Baltic Sea. The phytoplankton community was, in terms of chlorophyll a and total biomass, primarily N-limited, but the individual species varied in their responses to the nutrient supply. The recorded overall N limitation was due to fast growth responses of a few N- limited species such as the diatom Chaetoceros wighamii (Brightwell) and the mixotrophic chrysophyte Uroglena sp. Another dominating diatom, Skeletonema costatum (Greville) Cleve was most clearly P-limited. The N:P ratio had the strongest effect on Uroglena sp., which grew exponentially in the enrichments with a high N:P ratio. This can be explained by the ability of the species to feed on P-rich bacteria, which gives it a competitive advantage in P-limited conditions. The species-specific differences in the responses to the nutrient enrichments can generally be explained by differences in the species physiology and they were consistent with the theory of resource competition.},
  language  = {en}
}
@article{JeltschTews2004,
  author    = {Jeltsch, Florian and Tews, J{\"o}rg},
  title     = {Climate change impacts woody plant population dynamics in arid savanna},
  year      = {2004},
  language  = {en}
}
@article{PiontekWinklerBaletal.2004,
  author    = {Piontek, J. and Winkler, Lars and Bal, M. S. and Lassowski, Birgit and Mueller, Sandra L. and Gast, Klaus and Blasig, Ingolf E.},
  title     = {Investigating of homophilic interactions of the tight junction proteins occludin and claudin-5},
  year      = {2004},
  language  = {en}
}
@article{Stitt2004,
  author    = {Stitt, Mark},
  title     = {Gauntlets : Garbon and nutrient signalling : test systems, and metabolite and transcript profiles},
  isbn      = {3-00-011587-0},
  year      = {2004},
  language  = {en}
}
@article{EckermannFettkePaulyetal.2004,
  author    = {Eckermann, Nora and Fettke, J{\"o}rg and Pauly, Markus and Bazant, Esther and Steup, Martin},
  title     = {Starch-metabolism related isozymes in higher plants},
  year      = {2004},
  language  = {en}
}
@article{SachinidisWartenbergSaueretal.2004,
  author    = {Sachinidis, A. and Wartenberg, Maria and Sauer, Heinrich and Hescheler, J{\"u}rgen},
  title     = {Transcription factors, growth factors and signal cascades capable of priming morphogenesis of heart},
  isbn      = {1-588- 29113-8},
  year      = {2004},
  language  = {en}
}
@article{ScheibleToerjekAltmann2004,
  author    = {Scheible, W. R. and T{\"o}rj{\´e}k, Otto and Altmann, Thomas},
  title     = {From markers to cloned genes : map based cloning},
  isbn      = {3-540-20689-2},
  year      = {2004},
  language  = {en}
}
@article{JeltschWiegandWard2004,
  author    = {Jeltsch, Florian and Wiegand, K. and Ward, D.},
  title     = {Seed dispersal by cattle may cause shrub encroachment of Grewia flava on southern Kalahari rangelands},
  year      = {2004},
  language  = {en}
}
@article{JandrigSeitzHinzmannetal.2004,
  author    = {Jandrig, Burkhard and Seitz, Susanne and Hinzmann, Bernd and Arnold, Wolfgang and Micheel, Burkhard and Koelble, Konrad and Siebert, Reiner and Schwartz, Arnfried and Ruecker, Karin and Schlag, Peter M. and Scherneck, Siegfried and Rosenthal, Andra},
  title     = {ST18 is a breast cancer tumor suppressor gene at human chromosome 8q11.2},
  year      = {2004},
  abstract  = {We have identified a gene, ST18 (suppression of tumorigenicity 18, breast carcinoma, zinc-finger protein), within a frequent imbalanced region of chromosome 8q11 as a breast cancer tumor suppressor gene. The ST18 gene encodes a zinc-finger DNA-binding protein with six fingers of the C2HC type (configuration Cys-X5-Cys-X12-His-X4-Cys) and an SMC domain. ST18 has the potential to act as transcriptional regulator. ST18 is expressed in a number of normal tissues including mammary epithelial cells although the level of expression is quite low. In breast cancer cell lines and the majority of primary breast tumors, ST18 mRNA is significantly downregulated. A 160 bp region within the promoter of the ST18 gene is hypermethylated in about 80\% of the breast cancer samples and in the majority of breast cancer cell lines. The strong correlation between ST18 promoter hypermethylation and loss of ST18 expression in tumor cells suggests that this epigenetic mechanism is responsible for tumor-specific downregulation. We further show that ectopic ST18 expression in MCF-7 breast cancer cells strongly inhibits colony formation in soft agar and the formation of tumors in a xenograft mouse model},
  language  = {en}
}
@article{BergerToerjekAltmann2004,
  author    = {Berger, Dieter and T{\"o}rjek, Otto and Altmann, Thomas},
  title     = {Establishment of high-efficiency mapping tools},
  isbn      = {3-00-011587-0},
  year      = {2004},
  language  = {en}
}
@article{vanKleunenRamponiSchmid2004,
  author    = {van Kleunen, Mark and Ramponi, G. and Schmid, Bernhard},
  title     = {Effects of herbivory simulated by clipping and jasmonic acid on growth and reproduction in Solidago canadensis},
  year      = {2004},
  language  = {en}
}
@article{LehnhardtPufeBaumanetal.2004,
  author    = {Lehnhardt, Lothar and Pufe, Heidrun and Bauman, Ingrid and Baumann, Guido},
  title     = {Responses of chloroplast thylakoid composition to low temperature and high light stress in callus cultures and in leaves of sugar beet},
  year      = {2004},
  language  = {en}
}
@article{vanKleunenLenssenFischeretal.2004,
  author    = {van Kleunen, Mark and Lenssen, J. P. M. and Fischer, Markus and de Kroon, H.},
  title     = {Local adaption of the clonal plant Ranunculus reptans to flooding along a small-scale gradient.},
  year      = {2004},
  language  = {en}
}
@article{JeltschTewsBroseetal.2004,
  author    = {Jeltsch, Florian and Tews, J{\"o}rg and Brose, Ulrich and Grimm, Volker and Tielb{\"o}rger, Katja and Wichmann, Matthias and Schwager, Monika},
  title     = {Animal species diversity driven by habitat heterogeneity/diversity : the importance of keystone structures},
  year      = {2004},
  abstract  = {In a selected literature survey we reviewed studies on the habitat heterogeneity-animal species diversity relationship and evaluated whether there are uncertainties and biases in its empirical support. We reviewed 85 publications for the period 1960-2003. We screened each publication for terms that were used to define habitat heterogeneity, the animal species group and ecosystem studied, the definition of the structural variable, the measurement of vegetation structure and the temporal and spatial scale of the study. The majority of studies found a positive correlation between habitat heterogeneity/diversity and animal species diversity. However, empirical support for this relationship is drastically biased towards studies of vertebrates and habitats under anthropogenic influence. In this paper we show that ecological effects of habitat heterogeneity may vary considerably between species groups depending on whether structural attributes are perceived as heterogeneity or fragmentation. Possible effects may also vary relative to the structural variable measured. Based upon this, we introduce a classification framework that may be used for across-studies comparisons. Moreover, the effect of habitat heterogeneity for one species group may differ in relation to the spatial scale. In several studies, however, different species groups are closely linked to 'keystone structures' that determine animal species diversity by their presence. Detecting crucial keystone structures of the vegetation has profound implications for nature conservation and biodiversity management.},
  language  = {en}
}
@article{HanischvanRossumGastetal.2004,
  author    = {Hanisch, Uwe-Karsten and van Rossum, D. and Gast, Klaus and Misselwitz, Rolf and Goldstein, Gundars and Koistinaho, Jari and M{\"o}ller, Thomas},
  title     = {The microglia-activating potential of thrombin : is the protease able to induce cyto- and chemokines?},
  year      = {2004},
  language  = {en}
}