Häder D-P (2017) Image analysis for bioassays – the basics. In: Häder D-P, Erzinger GS (eds)
Bioassays: advanced methods and applications. Elsevier, Atlanta, GA, pp 69–98
Häder D-P, Erzinger GS (2015) Advanced methods in image analysis as potent tools in online
biomonitoring of water resources. Recent Pat Top Imaging 5:112–118
Häder D-P, Hemmersbach R (1997) Graviperception and graviorientation in flagellates. Planta
203:7–10
Häder D-P, Iseki M (2017) Photomovement in Euglena. In: Schwartzbach S, Shigeoka S (eds)
Euglena: biochemistry, cell and molecular biology. Springer, Cham, pp 207–235
Häder D-P, Lebert M (1985) Real time computer-controlled tracking of motile microorganisms.
Photochem Photobiol 42:509–514
Häder D-P, Lebert M (1998) Mechanism of gravitactic signal perception and signal transduction of
Euglena gracilis. Micrograv News 11:14
Häder D-P, Lebert M (2000) Real-time tracking of microorganisms. In: Häder D-P (ed) Image
analysis: methods and applications. CRC Press, Boca Raton, pp 393–422
Häder D-P, Lebert M (2001) Graviperception and gravitaxis in algae. Adv Space Res 27:861–870
Häder D-P, Lebert M (2002) Graviorientation in flagellates. Proceedings 2nd China-Germany
workshop on microgravity sciences, National Microgravity Laboratory, Chinese Academy of
Sciences, Dunhuang, Beijing, China, September 1–3, 2002
Häder D-P, Liu SM (1990) Effects of artificial and solar UV-B radiation on the gravitactic
orientation of the dinoflagellate, Peridinium gatunense. FEMS Microbiol Ecol 73:331–338
Häder D-P, Vogel K (1991) Simultaneous tracking of flagellates in real time by image analysis.
J Math Biol 30:63–72
Häder D-P, Vogel K, Schäfer J (1990) Responses of the photosynthetic flagellate, Euglena gracilis,
to microgravity. Appl Micrograv Technol 3:110–116
Häder D-P, Rosum A, Schäfer J, Hemmersbach R (1996) Graviperception in the flagellate Euglena
gracilis during a shuttle space flight. J Biotechnol 47:261–269
Häder D-P, Porst M, Tahedl H, Richter P, Lebert M (1997) Gravitactic orientation in the flagellate
Euglena gracilis. Microgravity Sci Technol 10:53–57
Häder D-P, Lebert M, Richter P (1999) Gravitaxis and graviperception in flagellates and ciliates.
Proceedings 14th ESA symposium on European rocket and balloon programmes and related
research (ESA SP-437), Potsdam, Germany
Häder D-P, Lebert M, Richter P, Ntefidou M (2003) Gravitaxis and graviperception in flagellates.
Adv Space Res 31:2181–2186
Häder D-P, Hemmersbach R, Lebert M (2005a) Gravity and the behavior of unicellular organisms.
Cambridge University Press, Cambridge
Häder D-P, Richter P, Daiker V, Lebert M (2005b) Molecular transduction chain for
graviorientation in flagellates. ELGRA News 24:74
Häder D-P, Richter P, Ntefidou M, Lebert M (2005c) Gravitational sensory transduction chain in
flagellates. Adv Space Res 36:1182–1188
Häder D-P, Richter P, Lebert M (2006) Signal transduction in gravisensing of flagellates. Signal
Transduct 6:422–431
Häder D-P, Richter P, Schuster M, Daiker V, Lebert M (2009) Molecular analysis of the
graviperception signal transduction in the flagellate Euglena gracilis: involvement of a transient
receptor potential-like channel and a calmodulin. Adv Space Res 43:1179–1184
Häder D-P, Faddoul J, Lebert M, Richter P, Schuster M, Richter R, Strauch SM, Daiker V, Sinha R,
Sharma N (2010) Investigation of gravitaxis and phototaxis in Euglena gracilis. In: Sinha R,
Sharma NK, Rai AK (eds) Advances in life sciences. IK International Publishing House, New
Delhi, pp 117–131
Haupt W (1962) Geotaxis. In: Ruhland W (ed) Handbuch der Pflanzenphysiologie. SpringerVerlag, Berlin, pp 390–395
Hemmersbach R, Bräucker R (2002) Gravity-related behaviour in ciliates and flagellates. Adv
Space Biol Med 8:59–75
42
3 Gravitaxis in Flagellates and Ciliates
Bioassays: advanced methods and applications. Elsevier, Atlanta, GA, pp 69–98
Häder D-P, Erzinger GS (2015) Advanced methods in image analysis as potent tools in online
biomonitoring of water resources. Recent Pat Top Imaging 5:112–118
Häder D-P, Hemmersbach R (1997) Graviperception and graviorientation in flagellates. Planta
203:7–10
Häder D-P, Iseki M (2017) Photomovement in Euglena. In: Schwartzbach S, Shigeoka S (eds)
Euglena: biochemistry, cell and molecular biology. Springer, Cham, pp 207–235
Häder D-P, Lebert M (1985) Real time computer-controlled tracking of motile microorganisms.
Photochem Photobiol 42:509–514
Häder D-P, Lebert M (1998) Mechanism of gravitactic signal perception and signal transduction of
Euglena gracilis. Micrograv News 11:14
Häder D-P, Lebert M (2000) Real-time tracking of microorganisms. In: Häder D-P (ed) Image
analysis: methods and applications. CRC Press, Boca Raton, pp 393–422
Häder D-P, Lebert M (2001) Graviperception and gravitaxis in algae. Adv Space Res 27:861–870
Häder D-P, Lebert M (2002) Graviorientation in flagellates. Proceedings 2nd China-Germany
workshop on microgravity sciences, National Microgravity Laboratory, Chinese Academy of
Sciences, Dunhuang, Beijing, China, September 1–3, 2002
Häder D-P, Liu SM (1990) Effects of artificial and solar UV-B radiation on the gravitactic
orientation of the dinoflagellate, Peridinium gatunense. FEMS Microbiol Ecol 73:331–338
Häder D-P, Vogel K (1991) Simultaneous tracking of flagellates in real time by image analysis.
J Math Biol 30:63–72
Häder D-P, Vogel K, Schäfer J (1990) Responses of the photosynthetic flagellate, Euglena gracilis,
to microgravity. Appl Micrograv Technol 3:110–116
Häder D-P, Rosum A, Schäfer J, Hemmersbach R (1996) Graviperception in the flagellate Euglena
gracilis during a shuttle space flight. J Biotechnol 47:261–269
Häder D-P, Porst M, Tahedl H, Richter P, Lebert M (1997) Gravitactic orientation in the flagellate
Euglena gracilis. Microgravity Sci Technol 10:53–57
Häder D-P, Lebert M, Richter P (1999) Gravitaxis and graviperception in flagellates and ciliates.
Proceedings 14th ESA symposium on European rocket and balloon programmes and related
research (ESA SP-437), Potsdam, Germany
Häder D-P, Lebert M, Richter P, Ntefidou M (2003) Gravitaxis and graviperception in flagellates.
Adv Space Res 31:2181–2186
Häder D-P, Hemmersbach R, Lebert M (2005a) Gravity and the behavior of unicellular organisms.
Cambridge University Press, Cambridge
Häder D-P, Richter P, Daiker V, Lebert M (2005b) Molecular transduction chain for
graviorientation in flagellates. ELGRA News 24:74
Häder D-P, Richter P, Ntefidou M, Lebert M (2005c) Gravitational sensory transduction chain in
flagellates. Adv Space Res 36:1182–1188
Häder D-P, Richter P, Lebert M (2006) Signal transduction in gravisensing of flagellates. Signal
Transduct 6:422–431
Häder D-P, Richter P, Schuster M, Daiker V, Lebert M (2009) Molecular analysis of the
graviperception signal transduction in the flagellate Euglena gracilis: involvement of a transient
receptor potential-like channel and a calmodulin. Adv Space Res 43:1179–1184
Häder D-P, Faddoul J, Lebert M, Richter P, Schuster M, Richter R, Strauch SM, Daiker V, Sinha R,
Sharma N (2010) Investigation of gravitaxis and phototaxis in Euglena gracilis. In: Sinha R,
Sharma NK, Rai AK (eds) Advances in life sciences. IK International Publishing House, New
Delhi, pp 117–131
Haupt W (1962) Geotaxis. In: Ruhland W (ed) Handbuch der Pflanzenphysiologie. SpringerVerlag, Berlin, pp 390–395
Hemmersbach R, Bräucker R (2002) Gravity-related behaviour in ciliates and flagellates. Adv
Space Biol Med 8:59–75
42
3 Gravitaxis in Flagellates and Ciliates