GRAS Notice, Zeaxanthin from Marigold
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Altered Xanthophyll Compositions Adversely Affect Chlorophyll Accumulation and Nonphotochemical Quenching in Arabidopsis Mutants
Proc. Natl. Acad. Sci. USA Vol. 95, pp. 13324–13329, October 1998 Plant Biology Altered xanthophyll compositions adversely affect chlorophyll accumulation and nonphotochemical quenching in Arabidopsis mutants BARRY J. POGSON*, KRISHNA K. NIYOGI†,OLLE BJO¨RKMAN‡, AND DEAN DELLAPENNA§¶ *Department of Plant Biology, Arizona State University, Tempe, AZ 85287-1601; †Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720-3102; ‡Department of Plant Biology, Carnegie Institution of Washington, Stanford, CA 94305-4101; and §Department of Biochemistry, University of Nevada, Reno, NV 89557-0014 Contributed by Olle Bjo¨rkman, September 4, 1998 ABSTRACT Collectively, the xanthophyll class of carote- thin, are enriched in the LHCs, where they contribute to noids perform a variety of critical roles in light harvesting assembly, light harvesting, and photoprotection (2–8). antenna assembly and function. The xanthophyll composition A summary of the carotenoid biosynthetic pathway of higher of higher plant photosystems (lutein, violaxanthin, and neox- plants and relevant chemical structures is shown in Fig. 1. anthin) is remarkably conserved, suggesting important func- Lycopene is cyclized twice by the enzyme lycopene b-cyclase tional roles for each. We have taken a molecular genetic to form b-carotene. The two beta rings of b-carotene are approach in Arabidopsis toward defining the respective roles of subjected to identical hydroxylation reactions to yield zeaxan- individual xanthophylls in vivo by using a series of mutant thin, which in turn is epoxidated once to form antheraxanthin lines that selectively eliminate and substitute a range of and twice to form violaxanthin. Neoxanthin is derived from xanthophylls. The mutations, lut1 and lut2 (lut 5 lutein violaxanthin by an additional rearrangement (9). -
Identification of Distinct Ph- and Zeaxanthin-Dependent Quenching
RESEARCH ARTICLE Identification of distinct pH- and zeaxanthin-dependent quenching in LHCSR3 from Chlamydomonas reinhardtii Julianne M Troiano1†, Federico Perozeni2†, Raymundo Moya1, Luca Zuliani2, Kwangyrul Baek3, EonSeon Jin3, Stefano Cazzaniga2, Matteo Ballottari2*, Gabriela S Schlau-Cohen1* 1Department of Chemistry, Massachusetts Institute of Technology, Cambridge, United States; 2Department of Biotechnology, University of Verona, Verona, Italy; 3Department of Life Science, Hanyang University, Seoul, Republic of Korea Abstract Under high light, oxygenic photosynthetic organisms avoid photodamage by thermally dissipating absorbed energy, which is called nonphotochemical quenching. In green algae, a chlorophyll and carotenoid-binding protein, light-harvesting complex stress-related (LHCSR3), detects excess energy via a pH drop and serves as a quenching site. Using a combined in vivo and in vitro approach, we investigated quenching within LHCSR3 from Chlamydomonas reinhardtii. In vitro two distinct quenching processes, individually controlled by pH and zeaxanthin, were identified within LHCSR3. The pH-dependent quenching was removed within a mutant LHCSR3 that lacks the residues that are protonated to sense the pH drop. Observation of quenching in zeaxanthin-enriched LHCSR3 even at neutral pH demonstrated zeaxanthin-dependent quenching, which also occurs in other light-harvesting complexes. Either pH- or zeaxanthin-dependent quenching prevented the formation of damaging reactive oxygen species, and thus the two *For correspondence: quenching processes may together provide different induction and recovery kinetics for [email protected] (MB); photoprotection in a changing environment. [email protected] (GSS-C) †These authors contributed equally to this work Competing interests: The Introduction authors declare that no Sunlight is the essential source of energy for most photosynthetic organisms, yet sunlight in excess competing interests exist. -
Identification of 1 Distinct Ph- and Zeaxanthin-Dependent Quenching in LHCSR3 from Chlamydomonas Reinhardtii
Identification of 1 distinct pH- and zeaxanthin-dependent quenching in LHCSR3 from chlamydomonas reinhardtii The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Citation Troiano, Julianne M. et al. “Identification of 1 distinct pH- and zeaxanthin-dependent quenching in LHCSR3 from chlamydomonas reinhardtii.” eLife, 10 (January 2021): e60383 © 2021 The Author(s) As Published 10.7554/eLife.60383 Publisher eLife Sciences Publications, Ltd Version Final published version Citable link https://hdl.handle.net/1721.1/130449 Terms of Use Creative Commons Attribution 4.0 International license Detailed Terms https://creativecommons.org/licenses/by/4.0/ RESEARCH ARTICLE Identification of distinct pH- and zeaxanthin-dependent quenching in LHCSR3 from Chlamydomonas reinhardtii Julianne M Troiano1†, Federico Perozeni2†, Raymundo Moya1, Luca Zuliani2, Kwangyrul Baek3, EonSeon Jin3, Stefano Cazzaniga2, Matteo Ballottari2*, Gabriela S Schlau-Cohen1* 1Department of Chemistry, Massachusetts Institute of Technology, Cambridge, United States; 2Department of Biotechnology, University of Verona, Verona, Italy; 3Department of Life Science, Hanyang University, Seoul, Republic of Korea Abstract Under high light, oxygenic photosynthetic organisms avoid photodamage by thermally dissipating absorbed energy, which is called nonphotochemical quenching. In green algae, a chlorophyll and carotenoid-binding protein, light-harvesting complex stress-related (LHCSR3), detects excess energy via a pH drop and serves as a quenching site. Using a combined in vivo and in vitro approach, we investigated quenching within LHCSR3 from Chlamydomonas reinhardtii. In vitro two distinct quenching processes, individually controlled by pH and zeaxanthin, were identified within LHCSR3. The pH-dependent quenching was removed within a mutant LHCSR3 that lacks the residues that are protonated to sense the pH drop. -
Abscisic Acid Induced Protection Against Photoinhibition of PSII Correlates with Enhanced Activity of the Xanthophyll Cycle
FEBS 15944 FEBS Letters 371 (1995) 61-64 Abscisic acid induced protection against photoinhibition of PSII correlates with enhanced activity of the xanthophyll cycle A.G. Ivanov a'*, M. Krol b, D. Maxwell b, N.P.A. Huner b alnstitute of Biophysics, Bulgarian Academy of Sciences, Aead. (7. Bonchev Street, bl. 21, 1113 Sofia, Bulgaria bDepartment of Plant Sciences, University of Western Ontario, London, Ont. N6A 5B7, Canada Received 22 June 1995; revised version received 24 July 1995 applied ABA on the light-dependent zeaxanthin formation, the Abstract The exogenous application of abscisic acid (ABA) to related capacity for non-photochemical chlorophyll fluores- barley seedlings resulted in partial protection of the PSII photo- cence quenching and the possible involvement of ABA in the chemistry against photoinhibition at low temperature, the effect protection of PSII photochemistry from excessive radiation at being most pronounced at 10 -s M ABA. This was accompanied low temperatures. by higher photochemical quenching (qP) in ABA-treated leaves. A considerable increase (122%) in the amount of total carotenoids 2. Materials and methods and xanthophylls (antheraxanthin, violaxanthin and zeaxanthin) was also found in the seedlings subjected to ABA. The activity Seeds of barley (Hordeum vulgare L. var. cadette) were germinated of the xanthophyll cycle measured by the epoxidation state of for 3 days and grown in aqueous solutions of ABA (10 -5 M and 10-6 M) xanthophyUs under high-light treatment was higher in ABA- as in [23]. ABA treatments lasted 7 days. The solutions were changed treated plants compared with the control. This corresponds to a daily. -
Level of Xanthophyll, Lutein and Zeaxanthin in Selected Thai Fruits Determined by HPLC
2012 International Conference on Nutrition and Food Sciences IPCBEE vol. 39 (2012) © (2012) IACSIT Press, Singapore Level of Xanthophyll, Lutein and Zeaxanthin in Selected Thai Fruits Determined by HPLC Nittaya Khonsarn 1 and Siriporn Lawan 2 1Department of biotechnology, Faculty of Technology, Mahasarakham University, Thailand 2 Department of Food technology, Faculty of Technology, Mahasarakham University, Thailand Abstract. In this study 12 selected Thai summer fruits were determined xanthophyll, lutein and zeaxanthin content by high performance liquid chromatography (HPLC). The result shown that there were xanthophyll in 11 kinds of selected fruits except banana. The highest of average xanthophyll level was found in cantaloupe (1.31±0.07 mg/100g edible portion), meanwhile barbados cherry was the second (1.18±0.03 mg/100g edible portion). Among fruits analysed, lutein content was the highest in papaya (23.74±0.46 mg/100g edible portion), follow by cantaloupe (21.82±1.60 mg/100g edible portion). Whereas lutein was not detected in star gooseberry, java apple, dragon fruit, guava, salak plum, water melon, banana and satol. Cantaloupe was the highest source of zeaxanthin (1.72±0.07 mg/100g edible portion), zeaxanthin was not however detected in star gooseberry, java apple, dragon fruit, salak plum, banana and satol. These results are suggested that some kinds of summer fruits including papaya and cantaloupe, have potential as rich sources of xanthophyll, lutein and zeaxanthin for consumer health. Keywords: Xanthophyll, Lutein, Zeaxanthin, Thai Fruit, HPLC. 1. Introduction Xanthophyll, lutein and zeaxanthin are some kinds of carotenoid that not only play important role in organic pigments in fruits and vegetables but also important in the prevention of various diseases associated with oxidative stress. -
Response of Marigold (Tagetes Erecta L.) to Different Levels of Nitrogen at Bagh E Naran Park Peshawar
Research Article Int J Environ Sci Nat Res Volume 14 Issue 1 - August 2018 DOI: 10.19080/IJESNR.2018.14.55587 Copyright © All rights are reserved by Maulin P Shah Response of Marigold (Tagetes erecta l.) to Different Levels of Nitrogen at Bagh E Naran Park Peshawar Shafiullah1*, Muhammad Ibrahim2, Faraz Ali Shah1, Taimor Khan1, Israr Ahmad1, Muhammad Awais Shahid1 and Sajjad Khan1 1The University of Agriculture Peshawar-Pakistan 2Agriculture Research Station, Amnawar Buner KP-Pakistan Submission: August 01, 2018; Published: August 14, 2018 *Corresponding author: Shafiullah, The University of Agriculture Peshawar-Pakistan, Email: Abstract th An experiment on “Response of marigold to different levels of nitrogen” was carried out at the Horticulture Nursery, The University of Agriculture Peshawar, during 2013. Seedling of Marigold cultivar “Pygmy” were raised and transplanted on flat beds-1 on 10 October-1 2013 at 30-1 cm Plant to Plant and 60 cm Row to Row. The seedlings were subjected to four different levels of nitrogen, 70 kg ha , 90 kg ha and 110 kg ha along with the control with no nitrogen. Data were collected on plant height, number of branches, number of leaves, days to flowering, number of flowers-1 and flower weight. Different level of nitrogen had significantly affected-1 all the parameters mentioned below except-1 number of leaves plant . Maximum plant height (22.80 cm), maximum number of branches-1 plant (15.47), maximum number of leaves plant (158.67), minimum number of days to flowering (22.33), maximum-1 number of flowers plant (23.22), maximum flower weight (20.66 gm),-1 were recorded in plants receivedKeywords: nitrogen Tagetes at erecta the rate of 110 kg ha . -
Screening of Herbicides for Selective Weed Control in African Marigold (Tagetes Erecta) Katie Jean Demers Iowa State University
Iowa State University Capstones, Theses and Graduate Theses and Dissertations Dissertations 2015 Screening of herbicides for selective weed control in African marigold (Tagetes erecta) Katie Jean Demers Iowa State University Follow this and additional works at: https://lib.dr.iastate.edu/etd Part of the Agricultural Science Commons, Agriculture Commons, Agronomy and Crop Sciences Commons, and the Horticulture Commons Recommended Citation Demers, Katie Jean, "Screening of herbicides for selective weed control in African marigold (Tagetes erecta)" (2015). Graduate Theses and Dissertations. 14321. https://lib.dr.iastate.edu/etd/14321 This Thesis is brought to you for free and open access by the Iowa State University Capstones, Theses and Dissertations at Iowa State University Digital Repository. It has been accepted for inclusion in Graduate Theses and Dissertations by an authorized administrator of Iowa State University Digital Repository. For more information, please contact [email protected]. Screening of herbicides for selective weed control in African marigold ( Tagetes erecta ) by Katie Jean Demers A thesis submitted to the graduate faculty in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Major: Crop Production and Physiology (Weed Science) Program of Study Committee: Robert Hartzler, Major Professor Micheal Owen Nick Christians Iowa State University Ames, Iowa 2015 Copyright © Katie Jean Demers, 2015. All rights reserved. ii TABLE OF CONTENTS LIST OF FIGURES ......................................................................................................... -
Genetic Modification of Tomato with the Tobacco Lycopene Β-Cyclase Gene Produces High Β-Carotene and Lycopene Fruit
Z. Naturforsch. 2016; 71(9-10)c: 295–301 Louise Ralley, Wolfgang Schucha, Paul D. Fraser and Peter M. Bramley* Genetic modification of tomato with the tobacco lycopene β-cyclase gene produces high β-carotene and lycopene fruit DOI 10.1515/znc-2016-0102 and alleviation of vitamin A deficiency by β-carotene, Received May 18, 2016; revised July 4, 2016; accepted July 6, 2016 which is pro-vitamin A [4]. Deficiency of vitamin A causes xerophthalmia, blindness and premature death, espe- Abstract: Transgenic Solanum lycopersicum plants cially in children aged 1–4 [5]. Since humans cannot expressing an additional copy of the lycopene β-cyclase synthesise carotenoids de novo, these health-promoting gene (LCYB) from Nicotiana tabacum, under the control compounds must be taken in sufficient quantities in the of the Arabidopsis polyubiquitin promoter (UBQ3), have diet. Consequently, increasing their levels in fruit and been generated. Expression of LCYB was increased some vegetables is beneficial to health. Tomato products are 10-fold in ripening fruit compared to vegetative tissues. the most common source of dietary lycopene. Although The ripe fruit showed an orange pigmentation, due to ripe tomato fruit contains β-carotene, the amount is rela- increased levels (up to 5-fold) of β-carotene, with negli- tively low [1]. Therefore, approaches to elevate β-carotene gible changes to other carotenoids, including lycopene. levels, with no reduction in lycopene, are a goal of Phenotypic changes in carotenoids were found in vegeta- plant breeders. One strategy that has been employed to tive tissues, but levels of biosynthetically related isopre- increase levels of health promoting carotenoids in fruits noids such as tocopherols, ubiquinone and plastoquinone and vegetables for human and animal consumption is were barely altered. -
Celebrate the Year of the Marigold
YEAR OF THE MARIGOLD 2018 Celebrate the year Step by Step 1. Sow them thinly into small pots of seed compost from March in a light, frost-free place such as a windowsill or porch. 2. Prick out seedlings singly into small pots or modules of the Marigold filled multi-purpose compost and allow the roots to fill the pot. Plant these easy to grow garden stalwarts for zingy coloured flowers 3. Plant out into their flowering position when all risk of all through the summer. One of the easiest garden annuals to grow, frost has passed. Marigolds are not just vibrant bedding plants they are an excellent choice 4. Feed with a high potash feed for flowering plants. for pots and patio gardening too. 5. Deadhead regularly to keep the plants flowering. SUN WORSHIPERS • Choose to grow Marigolds for • Grow compact French Marigolds in • Marigolds are part of the daisy their reliable production of flowers hanging baskets for a sunny, bright family and originate from north, from late spring into autumn. and colourful display at the front door. central and south America where • Marigold flowers are bright and • Plant taller African Marigolds in they thrive in full sun. They are best beautiful adding glowing shades the middle or towards the back of planted into rich, well-drained soil of yellow, burnt orange and rustic a display to add height, interest in a sunny spot in your garden. reds to your pots, beds and border. and depth to your display. • Marigolds come in a fantastic •Grow single, open flowered marigolds • For a low maintenance container, array of flower shapes, colours to attract butterflies and bees that plant one or three signet Marigolds and plant forms and are ideal will feed on the pollen and nectar. -
Carotenoid Composition of Strawberry Tree (Arbutus Unedo L.) Fruits
Accepted Manuscript Carotenoid composition of strawberry tree (Arbutus unedo L.) fruits Raúl Delgado-Pelayo, Lourdes Gallardo-Guerrero, Dámaso Hornero-Méndez PII: S0308-8146(15)30273-9 DOI: http://dx.doi.org/10.1016/j.foodchem.2015.11.135 Reference: FOCH 18476 To appear in: Food Chemistry Received Date: 25 May 2015 Revised Date: 21 November 2015 Accepted Date: 28 November 2015 Please cite this article as: Delgado-Pelayo, R., Gallardo-Guerrero, L., Hornero-Méndez, D., Carotenoid composition of strawberry tree (Arbutus unedo L.) fruits, Food Chemistry (2015), doi: http://dx.doi.org/10.1016/j.foodchem. 2015.11.135 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Carotenoid composition of strawberry tree (Arbutus unedo L.) fruits. Raúl Delgado-Pelayo, Lourdes Gallardo-Guerrero, Dámaso Hornero-Méndez* Group of Chemistry and Biochemistry of Pigments. Food Phytochemistry Department. Instituto de la Grasa (CSIC). Campus Universidad Pablo de Olavide, Ctra. de Utrera km. 1. 41013 - Sevilla (Spain). * Corresponding author. Telephone: +34 954611550; Fax: +34 954616790; e-mail: [email protected] 1 Abstract The carotenoid composition of strawberry tree (A. unedo) fruits has been characterised in detail and quantified for the first time. According to the total carotenoid content (over 340 µg/g dw), mature strawberry tree berries can be classified as fruits with very high carotenoid content (> 20 µg/g dw). -
Vitamins a and E and Carotenoids
Fat-Soluble Vitamins & Micronutrients: Vitamins A and E and Carotenoids Vitamins A (retinol) and E (tocopherol) and the carotenoids are fat-soluble micronutrients that are found in many foods, including some vegetables, fruits, meats, and animal products. Fish-liver oils, liver, egg yolks, butter, and cream are known for their higher content of vitamin A. Nuts and seeds are particularly rich sources of vitamin E (Thomas 2006). At least 700 carotenoids—fat-soluble red and yellow pigments—are found in nature (Britton 2004). Americans consume 40–50 of these carotenoids, primarily in fruits and vegetables (Khachik 1992), and smaller amounts in poultry products, including egg yolks, and in seafoods (Boylston 2007). Six major carotenoids are found in human serum: alpha-carotene, beta-carotene, beta-cryptoxanthin, lutein, trans-lycopene, and zeaxanthin. Major carotene sources are orange-colored fruits and vegetables such as carrots, pumpkins, and mangos. Lutein and zeaxanthin are also found in dark green leafy vegetables, where any orange coloring is overshadowed by chlorophyll. Trans-Lycopene is obtained primarily from tomato and tomato products. For information on the carotenoid content of U.S. foods, see the 1998 carotenoid database created by the U.S. Department of Agriculture and the Nutrition Coordinating Center at the University of Minnesota (http://www.nal.usda.gov/fnic/foodcomp/Data/car98/car98.html). Vitamin A, found in foods that come from animal sources, is called preformed vitamin A. Some carotenoids found in colorful fruits and vegetables are called provitamin A; they are metabolized in the body to vitamin A. Among the carotenoids, beta-carotene, a retinol dimer, has the most significant provitamin A activity. -
African) Marigold Tagetes Erecta and the Smaller-Flowered French Marigold Tagetes Patula (Fig
Fact Sheet FPS-569 October, 1999 Tagetes erecta1 Edward F. Gilman, Teresa Howe2 Introduction There are two basic types of Marigold: the large-flowered American (also referred to as African) Marigold Tagetes erecta and the smaller-flowered French Marigold Tagetes patula (Fig. 1). A less well known species, Tagetes tenuifolia has small flowers and leaves than most other marigolds. Yellow, orange, golden or bicolored flowers are held either well above the fine- textured, dark green foliage or tucked in with the foliage, depending on the cultivar. They brighten up any sunny area in the landscape and attract attention. As flowers die, they hang on the plants and detract from the appearance of the landscape bed. Cut them off periodically to enhance appearance. Marigolds may be used as a dried flower and are planted 10 to 14 inches apart to form a solid mass of color. Some of the taller selections fall over in heavy rain or in windy weather. General Information Scientific name: Tagetes erecta Pronunciation: tuh-JEE-teez ee-RECK-tuh Common name(s): American Marigold, African Marigold Figure 1. American Marigold. Family: Compositae Plant type: annual Availablity: generally available in many areas within its USDA hardiness zones: all zones (Fig. 2) hardiness range Planting month for zone 7: Jun Planting month for zone 8: May; Jun Planting month for zone 9: Mar; Apr; Sep; Oct; Nov Description Planting month for zone 10 and 11: Feb; Mar; Oct; Nov; Dec Height: 1 to 3 feet Origin: native to North America Spread: .5 to 1 feet Uses: container or above-ground planter; edging; cut flowers; Plant habit: upright border; attracts butterflies Plant density: dense 1.This document is Fact Sheet FPS-569, one of a series of the Environmental Horticulture Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida.