Results 111 to 120 of about 219,757 (144)

Transcriptomics-based identification and characterization of glucosyltransferases involved in betalain biosynthesis in Hylocereus megalanthus

Plant Physiology and Biochemistry, 2020
Pitaya (Hylocereus spp.) is the only commercial cultivation of fruit containing abundant betalains for consumer. Betalains are water-soluble nitrogen-containing pigments with high nutritional value and bioactivities. In this study, contents of betaxanthins and betacyanins were compared between 'Guanhuabai' (H. undatus) and 'Huanglong' (H.
Fangfang, Xie, Qingzhu, Hua, Canbin, Chen, Lulu, Zhang, Zhike, Zhang, Jianye, Chen, Rong, Zhang, Junsheng, Zhao, Guibing, Hu, Jietang, Zhao, Yonghua, Qin   +10 more
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Isolation and characterization of the betalain biosynthesis gene involved in hypocotyl pigmentation of the allotetraploid Chenopodium quinoa

Biochemical and Biophysical Research Communications, 2018
In quinoa seedlings, the pigment betalain accumulates in the hypocotyl. To isolate the genes involved in betalain biosynthesis in the hypocotyl, we performed ethyl methanesulfonate (EMS) mutagenesis on the CQ127 variety of quinoa seedlings. While putative amaranthin and celosianin II primarily accumulate in the hypocotyls, this process produced a green
Tomohiro, Imamura, Hiroki, Takagi, Akio, Miyazato, Shinya, Ohki, Hiroharu, Mizukoshi, Masashi, Mori   +5 more
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Biosynthesis of betalains: yellow and violet plant pigments

Trends in Plant Science, 2013
Betalains are the yellow and violet pigments that substitute anthocyanins in plants belonging to the order Caryophyllales. These pigments have attracted much attention because of their bioactivities, which range from an antioxidant capacity to the chemoprevention of cancer.
Fernando, Gandía-Herrero, Francisco, García-Carmona   +1 more
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On the Mechanism of Decarboxylation of Betanidine. A Contribution to the Interpretation of the Biosynthesis of Betalaines

Helvetica Chimica Acta, 1972
AbstractBei der Biogenese des Betanins (2) aus Dopa (1) wird die Carboxylgruppe der Aminosäure in die Carboxylgruppe‐C(19) umgewandelt. Dieser Schluss beruht auf einem Deuterierungsversuch, bei dem gezeigt wird, dass die Monodecarboxylierung von Betanidin (3) zu einem Verlust von C(19) führt und dass dabei die Doppelbindung C(17)C(18) nach C(14)C(15)
E, Dunkelblum, H E, Miller, A S, Dreiding   +2 more
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Betalain plant sources, biosynthesis, extraction, stability enhancement methods, bioactivity, and applications

Food Research International, 2022
Betalains are plant pigments with functional properties used mainly as food dyes. However, they have been shown to be unstable to different environmental factors. This paper provides a review of (1) Betalain plant sources within several plant families such as Amaranthaceae, Basellaceae, Cactaceae, Portulacaceae, and Nyctaginaceae, (2) The biosynthesis ...
Juan Pablo, Carreón-Hidalgo, Diana Carolina, Franco-Vásquez, Darío R, Gómez-Linton, Laura J, Pérez-Flores   +3 more
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Tyrosinase involved in betalain biosynthesis of higher plants

Planta, 1999
A tyrosine-hydroxylating enzyme was partially purified from betacyanin-producing callus cultures of Portulaca grandiflora Hook. by using hydroxyapatite chromatography and gel filtration. It was characterized as a tyrosinase (EC 1.14.18.1 and EC 1.10.3.1) by inhibition experiments with copper-chelating agents and detection of concomitant o-diphenol ...
Ulrike Steiner, Willibald Schliemann, Hartmut Böhm, Dieter Strack   +3 more
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Cloning and expression analysis of betalain biosynthesis genes in Amaranthus tricolor

Biotechnology Letters, 2015
To clone genes involved in the betalain biosynthesis pathway and to assess the effects of phytohormones on betalain biosynthesis in Amaranthus tricolor.Five betalain biosynthesis genes were cloned by reverse transcription PCR and rapid amplification of cDNA ends.
Xueli, Zheng, Shengcai, Liu, Chunzhen, Cheng, Rongfang, Guo, Yukun, Chen, Liyang, Xie, Yuyuan, Mao, Yuling, Lin, Zihao, Zhang, Zhongxiong, Lai   +9 more
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Biosynthesis and Regulation of Betalains in Red Beet

2012
The red beet (Beta vulgaris) gets its distinctive color from betalains, one of the major plant pigment groups. Betalain-bearing plants appeared among plants of the families Caryophyllales, of which red beet is one of the main crops. Betalain pigments are classified into two groups—red betacyanin and yellow betaxanthin—and they all contain two atoms of ...
Hiroshi Sekiguchi, Yoshihiro Ozeki, Nobuhiro Sasaki   +2 more
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Natural Pigments: Carotenoids, Anthocyanins, and Betalains — Characteristics, Biosynthesis, Processing, and Stability

Critical Reviews in Food Science and Nutrition, 2000
Pigments are present in all living matter and provide attractive colors and play basic roles in the development of organisms. Human beings, like most animals, come in contact with their surroundings through color, and things can or cannot be acceptable based on their color characteristics.
F, Delgado-Vargas, A R, Jiménez, O, Paredes-López   +2 more
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Characterization of a tyrosinase from Amanita muscaria involved in betalain biosynthesis

Phytochemistry, 1996
Abstract A tyrosinase was characterized from the betalain-containing pileus of the mushroom Amanita muscaria . The enzyme was located exclusively in the coloured parts of the mushroom and hydroxylated tyrosine to 3-(3,4-dihydroxyphenyl)-alanine (DOPA), suggesting that it is involved in betalain biosynthesis.
Lukas A. Mueller, Ursula Hinz, Jean-Pierre Zrÿd   +2 more
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