D-P Hader
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Explore the profile of D-P Hader including associated specialties, affiliations and a list of published articles.
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22
Citations
345
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Recent Articles
11.
Hader D, Helbling E, Williamson C, Worrest R
Photochem Photobiol Sci
. 2011 Jan;
10(2):242-60.
PMID: 21253662
The health of freshwater and marine ecosystems is critical to life on Earth. The impact of solar UV-B radiation is one potential stress factor that can have a negative impact...
12.
Strauch S, Richter P, Schuster M, Hader D
J Plant Physiol
. 2009 Aug;
167(1):41-6.
PMID: 19679374
The unicellular freshwater flagellate Euglena gracilis shows negative gravitactic behavior. Previous experiments have revealed that the orientation is most likely an active physiological process in which the beating pattern of...
13.
Hader D, Kumar H, Smith R, Worrest R
Photochem Photobiol Sci
. 2007 Mar;
6(3):267-85.
PMID: 17344962
Recent results continue to show the general consensus that ozone-related increases in UV-B radiation can negatively influence many aquatic species and aquatic ecosystems (e.g., lakes, rivers, marshes, oceans). Solar UV...
14.
Richter P, Schuster M, Meyer I, Lebert M, Hader D
Protoplasma
. 2006 Dec;
229(2-4):101-8.
PMID: 17180490
The effects of the calcium sequester EGTA on gravitactic orientation and membrane potential changes in the unicellular flagellate Euglena gracilis were investigated during a recent parabolic-flight experiment aboard of an...
15.
Hader D, Lebert M, Richter P, Ntefidou M
Adv Space Res
. 2003 Dec;
31(10):2181-6.
PMID: 14686430
There is strong evidence that gravitactic orientation in flagellates and ciliates is mediated by an active physiological gravireceptor rather than by passive alignment of the cells in the water column....
16.
Tyagi R, Kumar A, Tyagi M, Jha P, Kumar H, Sinha R, et al.
J Basic Microbiol
. 2003 May;
43(2):137-47.
PMID: 12746856
The protective effects of L-cysteine, ascorbic acid, reduced glutathione, L-tryptophan, and sodium pyruvate against UV-B-induced damages were studied in the nitrogen-fixing cyanobacterium, Nostoc muscorum. When added to the culture suspension...
17.
Effects of gamma-ray and high energy carbon ion irradiation on swimming velocity of Euglena gracilis
Sakashita T, Doi M, Yasuda H, Fuma S, Hader D
Adv Space Res
. 2003 Jan;
30(4):1023-30.
PMID: 12539782
The effects of gamma-ray and high energy carbon ion irradiation on the swimming velocity of the photosynthetic flagellate Euglena gracilis strain Z were studied, focusing on a dose-effect relationship. Cells...
18.
Sakashita T, Doi M, Yasuda H, Takeda H, Fuma S, Nakamura Y, et al.
Int J Radiat Biol
. 2002 Nov;
78(11):1055-60.
PMID: 12456293
Purpose: To study the effects of high-energy carbon ion irradiation on negative gravitaxis in the photosynthetic flagellate Euglena gracilis strain Z in a dose-response-dependent manner. Materials And Methods: Cells were...
19.
Klisch M, Hader D
J Photochem Photobiol B
. 2002 Feb;
66(1):60-6.
PMID: 11849984
The synthesis or accumulation of mycosporine-like amino acids (MAAs) is an important UV tolerance mechanism in aquatic organisms. To investigate the wavelength dependence of MAA synthesis in the marine dinoflagellate...
20.
Groniger A, Hader D
J Photochem Photobiol B
. 2002 Feb;
66(1):54-9.
PMID: 11849983
The chlorophyte Prasiola stipitata produces a UV-absorbing substance with an absorption maximum at 324 nm. The wavelength-dependent induction of the synthesis of this substance was investigated using simulated solar radiation...