Results 91 to 100 of about 5,603 (210)

The Module WmABF1‐1‐WmMYB111 Manipulates the Leaf Senescence of Welwitschia by Integrative Regulation of Abscisic Acid Biosynthesis, Chlorophyll Degradation and Nitrogen Transportation

Plant Biotechnology Journal, Volume 23, Issue 12, Page 5369-5386, December 2025.
ABSTRACT Welwitschia mirabilis has been well noted for its two continuously grown leaves which could survive for thousands of years in the desert. Compared to great efforts on elucidation of Welwitschia's leaf adaptivity to external stresses, the regulatory mechanism of its internal leaf aging was largely unknown.
Han Xu, Qingqing Song, Junnan Wan, Jiapeng Han, Qingfeng Wang, Tao Wan   +5 more
wiley   +1 more source

Chemical Composition and Bioactivities of the Marine Alga from Taiwan

Natural Product Communications, 2010
The present study investigated the chemical composition of Isochrysis galbana Parke, a marine microalga which is widely used as a feedstock in aquaculture. From gas chromatography/mass spectrometric analysis the mono-sugar compositions of I. galbana were
Chi-Cheng Yu, Hsiao-Wei Chen, Mao-Jing Chen, Yu-Ching Chang, Shih-Chang Chien, Yueh-Hsiung Kuo, Feng-Ling Yang, Shih-Hsiung Wu, Jie Chen, Hsiao-Hui Yu, Louis Kuop-Ping Chao   +10 more
doaj   +1 more source

Thermal alteration of organic matter in recent marine sediments. 1: Pigments [PDF]

Sediment from Tanner Basin, the outer continental shelf off Southern California, was analyzed for photosynthetic pigments and their derivatives, namely carotenes and chlorins. Samples of the sediment were also exposed to raised temperatures (65, 100, 150
Aizenshtat, Z., Baedecker, M. J., Ikan, R., Kaplan, I. R.   +3 more
core   +1 more source

Characterisation of Two Photosensitizing Compounds from Typhonium Flagelliforme Schott and Their Mode of Action in Inducing Cancer Cell Death [PDF]

, 2002
A bio-assay guided approach was used to isolate photosensitizing compounds from Typhonium flagelliforme Schott, a plant considered by local communities to possess anticancer properties.
Ho, Anthony Siong Hock
core  

HPLC/DAD Intercomparison on Phytoplankton Pigments (HIP-1, HIP-2, HIP-3 and HIP-4) [PDF]

, 2016
From 2009 to 2015, in the context of the MERIS (Medium Resolution Imaging Spectrometer) validation activities, the JRC Marine Optical Laboratory organised four HPLC Intercomparison exercises for Phytoplankton Pigment measurements (HIP-1, HIP-2, HIP-3 and
ARTUSO Florinda, CANUTI Elisabetta, CATALDI Dario, COSTA GOELA Priscilla, GRUNG Merete, RAS Josephine, ROTTGERS Rudiger   +6 more
core   +1 more source

The multidrug transporter ABCG2: still more questions than answers [PDF]

, 2016
ABCG2 is one of at least three human ATP binding cassette (ABC) transporters which can facilitate the export from cells of a wide range of chemically unrelated drug molecules.
Aaron J. Horsey, Agarwal, Allen, Allikmets, Aronica, Bai, Bartholomae, Basseville, Bauer, Benderra, Clark, Damiani, Damiani, Darby, Dezi, Doyle, Egido, Ejendal, Faneyte, Gozzi, Gutmann, Haider, Haider, Hang, Henriksen, Hirschmann-Jax, Ian D. Kerr, Jonker, Jonker, Kage, Kerr, Kerr, Keskitalo, Kim, Kourti, Kruijtzer, Li, Maliepaard, Mao, Mao, McDevitt, McDevitt, Megan H. Cox, Miyake, Mo, Nakagawa, Ni, Ni, Ota, Robey, Rosenberg, Rosenberg, Sauerbrey, Sissung, Sunehera Sarwat, Suvannasankha, Tian, Tsunoda, van den Heuvel-Eibrink, van Herwaarden, Wang, Wong, Wong, Woodward, Xiang, Xu, Xu, Yoh, Yoshikawa, Zhang   +69 more
core   +2 more sources

Residues contributing to drug transport by ABCG2 are localised to multiple drug-binding pockets [PDF]

, 2018
Multidrug binding and transport by the ATP binding cassette transporter ABCG2 is a factor in the clinical resistance to chemotherapy in leukaemia, and a contributory factor to the pharmacokinetic profiles of many other prescribed drugs.
Allen, Allikmets, Alqawi, Boussif, Clark, Cunningham, Deborah A. Briggs, Doyle, Ejendal, Ferreira, Ferreira, Gál, Haider, Higgins, Horsey, Ian D. Kerr, Johnson, Kage, Kerr, Khunweeraphong, Laemmli, Lawson, Lee, Li, Liu, Loo, Loo, Loo, László, Mao, McDevitt, McDevitt, Megan H. Cox, Mittra, Miyake, Nakashima, Ni, Ni, Nikaido, Parth Kapoor, Pleban, Robey, Robey, Rosenberg, Rosenberg, Seeger, Tamaki, Tamura, Tamura, Taylor, Trott, Verhalen, Wan, Wehenkel, Wong, Wong, Woodward, Wu, Xu, Özvegy-Laczka   +59 more
core   +2 more sources

Inactivation of Mitochondrial Electron Transport by Photosensitization of a Pheophorbide a Derivative

Molecules and Cells, 2004
We examined the damage to mitochondrial electron transport caused by photosensitization of a pheophorbide a derivative, DH-I-180-3, shown recently to induce necrosis of lung carcinoma cells with low dark toxicity. Confocal microscopy showed that DH-I-180-3 co-localized with dihydrorhodamine-123 suggesting that it mainly accumulates in mitochondria. The
Chang Su, Kim, Chang-Hee, Lee, Phil Ho, Lee, Sanghwa, Han   +3 more
openaire   +2 more sources

Separation of Chlorins and Carotenoids in Capillary Electrophoresis [PDF]

, 2017
The present study reports the investigation of capillary electrophoresis (CE) for the separation of the photosynthetic pigments (chlorophyll derivatives as well as carotenoids) together. Various CE methods, such as micellar electrokinetic chromatography,
Belin, Gamze Kavran, Gülaçar, Fazil O.
core  

Calcium-dependent Catabolism of Pheophorbide a in Tomato Fruit.

Engei Gakkai zasshi, 1999
Enzyme for degrading pheophorbide a (Pheid a), a chlorophyll (Chl) catabolite, was found in a crude extract prepared from tomato fruit. Application of 10mM CaCl2 strongly enhanced the enzyme activity. In the presence of EGTA, the enzyme activity was low and activation of enzyme by CaCl2 did not occur.
Tomonori Kawano, Masaru Adachi, Hirofumi Kurata, Rie Azuma, Keishi Shimokawa   +4 more
openaire   +2 more sources