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Arif AB, Budiyanto A, Setiawan, Cahyono T, Sulistiyani TR, Marwati T, Widayanti SM, Setyadjit, Manalu LP, Adinegoro H, Yustiningsih N, Hadipernata M, Jamal IB, Susetyo IB, Herawati H, Iswari K, Risfaheri. Application of Red and Blue LED Light on Cultivation and Postharvest of Tomatoes ( Solanum lycopersicum L.). SCIENTIFICA 2024; 2024:3815651. [PMID: 39257674 PMCID: PMC11387089 DOI: 10.1155/2024/3815651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 05/20/2024] [Accepted: 08/16/2024] [Indexed: 09/12/2024]
Abstract
Currently, light-emitting diode (LED) technology has produced a more energy-efficient and versatile technology as an artificial lighting system that can be applied in the agricultural sector. Artificial lighting technology has been proven to be effective in increasing the production of agricultural products, especially horticultural commodities. As one of the primary horticulture commodities, tomatoes are the most common crop produced in controlled environments with LED artificial lighting. The focus of this study is to describe the application of LED lights in tomato cultivation and postharvest. We provide an amalgamation of the recent research achievements on the impact of LED lighting on photosynthesis, vegetative growth, flowering, production, and postharvest of tomatoes. Red-blue (RB) lighting induces photosynthesis; increases the content of chlorophyll a, chlorophyll b, and carotenoids in tomato leaves; regulates vegetative growth in tomatoes; and increases the production of tomatoes. In postharvest tomatoes, blue LED lighting treatment can slowly change the color of the tomato skin to red, maintain hardness, and increase shelf life. Future research may be carried out on the effect of LED artificial lighting on tomatoes' phytochemical, antioxidant and other crucial nutritional content. Different LED wavelengths can be explored to enhance various bioactive compounds and health-promoting components.
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Affiliation(s)
- Abdullah Bin Arif
- Research Center for Agroindustry National Research and Innovation Agency, Central Jakarta, Indonesia
| | - Agus Budiyanto
- Research Center for Agroindustry National Research and Innovation Agency, Central Jakarta, Indonesia
| | - Setiawan
- Research Center for Horticulture National Research and Innovation Agency, Central Jakarta, Indonesia
| | - Tri Cahyono
- Research Center for Sustainable Production Systems and Life Cycle Assessment National Research and Innovation Agency, Central Jakarta, Indonesia
| | - Tri Ratna Sulistiyani
- Research Center for Biosystematics and Evolution National Research and Innovation Agency, Central Jakarta, Indonesia
| | - Tri Marwati
- Research Center for Food Technology and Processing National Research and Innovation Agency, Central Jakarta, Indonesia
| | - Siti Mariana Widayanti
- Research Center for Agroindustry National Research and Innovation Agency, Central Jakarta, Indonesia
| | - Setyadjit
- Research Center for Agroindustry National Research and Innovation Agency, Central Jakarta, Indonesia
| | - Lamhot Parulian Manalu
- Research Center for Agroindustry National Research and Innovation Agency, Central Jakarta, Indonesia
| | - Himawan Adinegoro
- Research Center for Agroindustry National Research and Innovation Agency, Central Jakarta, Indonesia
| | - Nenie Yustiningsih
- Research Center for Agroindustry National Research and Innovation Agency, Central Jakarta, Indonesia
| | - Mulyana Hadipernata
- Research Center for Agroindustry National Research and Innovation Agency, Central Jakarta, Indonesia
| | - Irpan Badrul Jamal
- Research Center for Agroindustry National Research and Innovation Agency, Central Jakarta, Indonesia
| | - Indra Budi Susetyo
- Research Center for Agroindustry National Research and Innovation Agency, Central Jakarta, Indonesia
| | - Heny Herawati
- Research Center for Agroindustry National Research and Innovation Agency, Central Jakarta, Indonesia
| | - Kasma Iswari
- Research Center for Agroindustry National Research and Innovation Agency, Central Jakarta, Indonesia
| | - Risfaheri
- Research Center for Agroindustry National Research and Innovation Agency, Central Jakarta, Indonesia
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Gahlowt P, Tripathi DK, Singh SP, Gupta R, Singh VP. Blue light perceiving CRY proteins: protecting plants from DNA damage. PLANT CELL REPORTS 2024; 43:161. [PMID: 38829395 DOI: 10.1007/s00299-024-03239-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Accepted: 05/17/2024] [Indexed: 06/05/2024]
Affiliation(s)
- Priya Gahlowt
- Plant Physiology Laboratory, Department of Botany, C.M.P. Degree College, A Constituent Post Graduate College of University of Allahabad, Prayagraj, 211002, India
| | - Durgesh Kumar Tripathi
- Crop Nanobiology and Molecular Stress Physiology Lab Amity, Institute of Organic Agriculture, Amity University Uttar Pradesh, Sector-125, Noida, 201313, India
| | - Surendra Pratap Singh
- Plant Molecular Biology Laboratory, Department of Botany, Dayanand Anglo-Vedic (PG) College, Chhatrapati Shahu Ji Maharaj University, Kanpur, 208001, India
| | - Ravi Gupta
- College of General Education, Kookmin University, Seoul, 02707, South Korea.
| | - Vijay Pratap Singh
- Plant Physiology Laboratory, Department of Botany, C.M.P. Degree College, A Constituent Post Graduate College of University of Allahabad, Prayagraj, 211002, India.
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Hu J, Wang J, Muhammad T, Tuerdiyusufu D, Yang T, Li N, Yang H, Wang B, Yu Q. Functional analysis of fasciclin-like arabinogalactan in carotenoid synthesis during tomato fruit ripening. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 210:108589. [PMID: 38593485 DOI: 10.1016/j.plaphy.2024.108589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 03/28/2024] [Accepted: 03/29/2024] [Indexed: 04/11/2024]
Abstract
Carotenoids are important pigmented nutrients synthesized by tomato fruits during ripening. To reveal the molecular mechanism underlying carotenoid synthesis during tomato fruit ripening, we analyzed carotenoid metabolites and transcriptomes in six development stages of tomato fruits. A total of thirty different carotenoids were detected and quantified in tomato fruits from 10 to 60 DPA. Based on differential gene expression profiles and WGCNA, we explored several genes that were highly significant and negatively correlated with lycopene, all of which encode fasciclin-like arabinogalactan proteins (FLAs). The FLAs are involved in plant signal transduction, however the functional role of these proteins has not been studied in tomato. Genome-wide analysis revealed that cultivated and wild tomato species contained 18 to 22 FLA family members, clustered into four groups, and mainly evolved by means of segmental duplication. The functional characterization of FLAs showed that silencing of SlFLA1, 5, and 13 were found to contribute to the early coloration of tomato fruits, and the expression of carotenoid synthesis-related genes was up-regulated in fruits that changed phenotypically, especially in SlFLA13-silenced plants. Furthermore, the content of multiple carotenoids (including (E/Z)-phytoene, lycopene, γ-carotene, and α-carotene) was significantly increased in SlFLA13-silenced fruits, suggesting that SlFLA13 has a potential inhibitory function in regulating carotenoid synthesis in tomato fruits. The results of the present study broaden the idea of analyzing the biological functions of tomato FLAs and preliminary evidence for the inhibitory role of SlFLA13 in carotenoid synthesis in fruit, providing the theoretical basis and a candidate for improving tomato fruit quality.
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Affiliation(s)
- Jiahui Hu
- Institute of Horticulture Crops, Xinjiang Academy of Agricultural Sciences (Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables), Urumqi, China; College of Horticulture, Xinjiang Agricultural University, Urumqi, Xinjiang, China
| | - Juan Wang
- Institute of Horticulture Crops, Xinjiang Academy of Agricultural Sciences (Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables), Urumqi, China
| | - Tayeb Muhammad
- Institute of Horticulture Crops, Xinjiang Academy of Agricultural Sciences (Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables), Urumqi, China
| | - Diliaremu Tuerdiyusufu
- Institute of Horticulture Crops, Xinjiang Academy of Agricultural Sciences (Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables), Urumqi, China; College of Computer and Information Engineering, Xinjiang Agricultural University, Urumqi, China
| | - Tao Yang
- Institute of Horticulture Crops, Xinjiang Academy of Agricultural Sciences (Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables), Urumqi, China
| | - Ning Li
- Institute of Horticulture Crops, Xinjiang Academy of Agricultural Sciences (Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables), Urumqi, China
| | - Haitao Yang
- Institute of Horticulture Crops, Xinjiang Academy of Agricultural Sciences (Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables), Urumqi, China
| | - Baike Wang
- Institute of Horticulture Crops, Xinjiang Academy of Agricultural Sciences (Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables), Urumqi, China.
| | - Qinghui Yu
- Institute of Horticulture Crops, Xinjiang Academy of Agricultural Sciences (Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables), Urumqi, China; College of Horticulture, Xinjiang Agricultural University, Urumqi, Xinjiang, China.
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Kanojia A, Bhola D, Mudgil Y. Light signaling as cellular integrator of multiple environmental cues in plants. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2023; 29:1485-1503. [PMID: 38076763 PMCID: PMC10709290 DOI: 10.1007/s12298-023-01364-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 09/01/2023] [Accepted: 09/14/2023] [Indexed: 12/17/2023]
Abstract
Plants being sessile need to rapidly adapt to the constantly changing environment through modifications in their internal clock, metabolism, and gene expression. They have evolved an intricate system to perceive and transfer the signals from the primary environmental factors namely light, temperature and water to regulate their growth development and survival. Over past few decades rigorous research using molecular genetics approaches, especially in model plant Arabidopsis, has resulted in substantial progress in discovering various photoreceptor systems and light signaling components. In parallel several molecular pathways operating in response to other environmental cues have also been elucidated. Interestingly, the studies have shown that expression profiles of genes involved in photomorphogenesis can undergo modulation in response to other cues from the environment. Recently, the photoreceptor, PHYB, has been shown to function as a thermosensor. Downstream components of light signaling pathway like COP1 and PIF have also emerged as integrating hubs for various kinds of signals. All these findings indicate that light signaling components may act as central integrator of various environmental cues to regulate plant growth and development processes. In this review, we present a perspective on cross talk of signaling mechanisms induced in response to myriad array of signals and their integration with the light signaling components. By putting light signals on the central stage, we propose the possibilities of enhancing plant resilience to the changing environment by fine-tuning the genetic manipulation of its signaling components in the future.
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Affiliation(s)
- Abhishek Kanojia
- Department of Botany, University of Delhi, New Delhi, 110007 India
| | - Diksha Bhola
- Department of Botany, University of Delhi, New Delhi, 110007 India
| | - Yashwanti Mudgil
- Department of Botany, University of Delhi, New Delhi, 110007 India
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Wang YH, Zhang RR, Yin Y, Tan GF, Wang GL, Liu H, Zhuang J, Zhang J, Zhuang FY, Xiong AS. Advances in engineering the production of the natural red pigment lycopene: A systematic review from a biotechnology perspective. J Adv Res 2023; 46:31-47. [PMID: 35753652 PMCID: PMC10105081 DOI: 10.1016/j.jare.2022.06.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 05/31/2022] [Accepted: 06/20/2022] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Lycopene is a natural red compound with potent antioxidant activity that can be utilized both as pigment and as a raw material in functional food, and so possesses good commercial prospects. The biosynthetic pathway has already been documented, which provides the foundation for lycopene production using biotechnology. AIM OF REVIEW Although lycopene production has begun to take shape, there is still an urgent need to alleviate the yield of lycopene. Progress in this area can provide useful reference for metabolic engineering of lycopene production utilizing multiple approaches. KEY SCIENTIFIC CONCEPTS OF REVIEW Using conventional microbial fermentation approaches, biotechnologists have enhanced the yield of lycopene by selecting suitable host strains, utilizing various additives, and optimizing culture conditions. With the development of modern biotechnology, genetic engineering, protein engineering, and metabolic engineering have been applied for lycopene production. Extraction from natural plants is the main way for lycopene production at present. Based on the molecular mechanism of lycopene accumulation, the production of lycopene by plant bioreactor through genetic engineering has a good prospect. Here we summarized common strategies for optimizing lycopene production engineering from a biotechnology perspective, which are mainly carried out by microbial cultivation. We reviewed the challenges and limitations of this approach, summarized the critical aspects, and provided suggestions with the aim of potential future breakthroughs for lycopene production in plants.
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Affiliation(s)
- Ya-Hui Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Rong-Rong Zhang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Yue Yin
- National Wolfberry Engineering Research Center, Ningxia Academy of Agricultural and Forestry Sciences, Yinchuan, Ningxia 750002, China
| | - Guo-Fei Tan
- Institute of Horticulture, Guizhou Academy of Agricultural Sciences, Guiyang, Guizhou 550025, China
| | - Guang-Long Wang
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, Jiangsu 223003, China
| | - Hui Liu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Jing Zhuang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Jian Zhang
- College of Agriculture, Jilin Agricultural University, Changchun, Jilin 130118, China; Department of Biology, University of British Columbia, Okanagan, Kelowna, Canada
| | - Fei-Yun Zhuang
- Institute of Vegetable and Flower, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Ai-Sheng Xiong
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China.
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de Oliveira R, Alves FRR, da Rocha Prado E, Gomes LDL, Freschi L, Gaion LA, Carvalho RF. CRYPTOCHROME 1a-mediated blue light perception regulates tomato seed germination via changes in hormonal balance and endosperm-degrading hydrolase dynamics. PLANTA 2023; 257:67. [PMID: 36843173 DOI: 10.1007/s00425-023-04100-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
Blue light exposure delays tomato seed germination by decreasing endosperm-degrading hydrolase activities, a process regulated by CRY1a-dependent signaling and the hormonal balance between ABA and GA. The germination of tomato seeds (Solanum lycopersicum L.) is tightly controlled by an internal hormonal balance, which is also influenced by environmental factors such as light. In this study, we investigated the blue light (BL)-mediated impacts on physiological, biochemical, and molecular processes during the germination of the blue light photoreceptor CRYPTOCHROME 1a loss-of-function mutant (cry1a) and of the hormonal tomato mutants notabilis (not, deficient in ABA) and procera (pro, displaying a GA-constitutive response). Seeds were germinated in a controlled chamber in the dark and under different intensities of continuous BL (ranging from 1 to 25 µmol m-2 s-1). In general, exposure to BL delayed tomato seed germination in a fluency rate-dependent way due to negative impacts on the activities of endosperm-degrading hydrolases, such as endo-β-mannanase, β-mannosidase, and α-galactosidase. However, not and pro mutants presented higher germination speed index (GSI) compared to WT despite the BL influence, associated with higher hydrolase activities, especially evident in pro, indicating that the ABA/GA hormonal balance is important to diminish BL inhibition over tomato germination. The cry1a germination percentage was higher than in WT in the dark but its GSI was lower under BL exposure, suggesting that functional CRY1a is required for BL-dependent germination. BL inhibits the expression of GA-biosynthetic genes, and induces GA-deactivating and ABA-biosynthetic genes. The magnitude of the BL influence over the hormone-related transcriptional profile is also dependent upon CRY1a, highlighting the complex interplay between light and hormonal pathways. These results contribute to a better understanding of BL-induced events behind the photoregulation of tomato seed germination.
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Affiliation(s)
- Reginaldo de Oliveira
- Department of Biology, São Paulo State University (UNESP), Jaboticabal, 14884-900, Brazil
| | - Frederico Rocha Rodrigues Alves
- Department of Systematics and Ecology, Center of Exact and Natural Sciences, Federal University of Paraíba, João Pessoa, PB, 58051-900, Brazil
| | | | | | - Luciano Freschi
- Department of Botany, Institute of Biosciences, University of São Paulo, São Paulo, Brazil
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Qiu G, Han Z, Wang Q, Wang T, Sun Z, Yu Y, Han X, Yu H. Toxicity effects of nanoplastics on soybean (Glycine max L.): Mechanisms and transcriptomic analysis. CHEMOSPHERE 2023; 313:137571. [PMID: 36535503 DOI: 10.1016/j.chemosphere.2022.137571] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/13/2022] [Accepted: 12/14/2022] [Indexed: 06/17/2023]
Abstract
Microplastic (MP) pollution has become a major concern in recent years. In agricultural production, MPs can not only affect the growth of crops but also affect yield. Compared with micron-sized MPs, nanoplastics (NPs) may be more harmful to plants. However, the effects of NPs on plant growth and development have attracted relatively little attention. As such, research has currently plateaued at the level of morphology and physiology, and the molecular mechanisms are still unclear. In this study, soybeans (Glycine max L.) were treated with polystyrene nanoplastics (PS-NPs) to observe phenotypic changes and measure the effects of PS-NPs on diverse aspects of soybeans. Compared to the control group, the soybean stem and root lengths were inhibited by 11.78% and 12.58%, respectively. The reactive oxygen species content and the antioxidant enzyme activities changed significantly (p < 0.05). The accumulation of manganese (Mn) and magnesium (Mg) in the roots revealed that root transmembrane transport was affected by PS-NPs stress. The content of salicylic acid 2-O-β-glucoside was inhibited whereas the accumulation of l-tryptophan, the precursor of auxin synthesis, was significantly increased (p < 0.05) in leaves. Transcriptomic analysis showed that PS-NPs could affect soybean DNA repair, membrane protein transport, and hormone synthesis and response. This study revealed the toxicity of NPs to soybeans and that NPs affected a variety of biological processes through transcriptome and hormone metabolome analysis, which provides a theoretical basis to further study the molecular mechanism of the effects on plants.
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Affiliation(s)
- Guankai Qiu
- Key Laboratory of Wetland Ecology and Environment, State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
| | - Zhongmin Han
- Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China
| | - Quanying Wang
- Key Laboratory of Wetland Ecology and Environment, State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
| | - Tianye Wang
- Key Laboratory of Wetland Ecology and Environment, State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
| | - Zhenghao Sun
- Key Laboratory of Wetland Ecology and Environment, State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
| | - Yong Yu
- Key Laboratory of Wetland Ecology and Environment, State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
| | - Xuerong Han
- Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun 130118, China.
| | - Hongwen Yu
- Key Laboratory of Wetland Ecology and Environment, State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China.
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Xiang N, Qi X, Hu J, Wang S, Guo X. l-Tryptophan synergistically increased carotenoid accumulation with blue light in maize ( Zea mays L.) sprouts. FOOD CHEMISTRY. MOLECULAR SCIENCES 2023; 6:100161. [PMID: 36691663 PMCID: PMC9860360 DOI: 10.1016/j.fochms.2023.100161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 12/30/2022] [Accepted: 01/07/2023] [Indexed: 01/11/2023]
Abstract
In the present study, l-tryptophan was applied in combination with blue light to modulate carotenoid biosynthesis in maize sprouts. The profiles of carotenoids, chlorophylls, and relative genes in carotenoid biosynthesis and light signaling pathways were studied. l-tryptophan and blue light both promoted the accumulation of carotenoids, and their combination further increased carotenoid content by 120%. l-tryptophan exerted auxin-like effects and stimulated PSY expression in blue light exposure maize sprouts, resulting in increased α- and β- carotenes. l-tryptophan could also play a photoprotective role through the xanthophyll cycle under blue light. In addition, CRY in the light signaling pathway was critical for carotenoid biosynthesis. These findings provide new insights into the regulation of carotenoid biosynthesis and l-tryptophan could be used in conjunction with blue light to fortify carotenoids in maize sprouts.
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Key Words
- Blue light
- CHYB, beta-carotene 3-hydroxylase
- CHYE, carotenoid epsilon hydroxylase
- COP1, constitutive photomorphogenic 1
- CRTISO, carotenoid isomerase
- CRY, cryptochrome
- Carotenoid
- FAD, flavin adenine dinucleotide
- FKF1, flavin-binding kelch repeat F-box protein 1
- GGDP, Geranylgeranyl diphosphate
- HPLC, high-performance liquid chromatography
- HY5, protein long hypocotyl 5
- LCYB, lycopene beta-cyclase
- LCYE, lycopene epsilon-cyclase
- LUT5, LUTEIN DEFICIENT 5
- Light signal
- Maize sprouts
- NXD1, NEOXANTHIN-DEFICIENT 1
- NXS, neoxanthin synthase
- OCP, Orange Carotenoid Protein
- PDS, 15-cis-phytoene desaturase
- PHOT1, phototropin 1
- PIF, phytochrome-interacting factor
- PSY, 15-cis-phytoene synthase
- VDE, violaxanthin de-epoxidase
- Z-ISO, zeta-carotene isomerase
- ZDS, zeta-carotene desaturase
- ZEP, zeaxanthin epoxidase
- l-Tryptophan
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Affiliation(s)
- Nan Xiang
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Engineering Research Center of Starch and Vegetable Protein Processing Ministry of Education, Research Institute for Food Nutrition and Human Health, South China University of Technology, Guangzhou, China
| | - Xitao Qi
- Key Laboratory of Crops Genetics Improvement of Guangdong Province, Crop Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Jianguang Hu
- Key Laboratory of Crops Genetics Improvement of Guangdong Province, Crop Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Siyun Wang
- Department of Food, Nutrition, and Health, University of British Columbia, Vancouver, BC, Canada
| | - Xinbo Guo
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Engineering Research Center of Starch and Vegetable Protein Processing Ministry of Education, Research Institute for Food Nutrition and Human Health, South China University of Technology, Guangzhou, China,Corresponding author.
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He R, Wei J, Zhang J, Tan X, Li Y, Gao M, Liu H. Supplemental Blue Light Frequencies Improve Ripening and Nutritional Qualities of Tomato Fruits. FRONTIERS IN PLANT SCIENCE 2022; 13:888976. [PMID: 35755648 PMCID: PMC9218689 DOI: 10.3389/fpls.2022.888976] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 04/26/2022] [Indexed: 05/27/2023]
Abstract
Tomatoes (Solanum lycopersicum L. Micro-Tom) were grown in a plastic greenhouse. When plants anthesis, the 100 μmol m-2 s-1 blue light-emitting diode (LED) light (430 ± 10 nm) was supplemented from 6:00 to 18:00. There were 5 treatments, which contained different blue light frequencies with the same intensity: S6 (30 min blue light and 30 min pause), S8 (30 min blue light and 15 min pause), S10 (30 min blue and 8 min pause), S12 (continuous blue light for 12 h), and control (CK) (natural light, without any supplemental light). Agronomic traits and nutritional qualities of tomato fruits were measured at 30, 34, 38, 42, and 46 days after anthesis (DAA), respectively. Different frequencies of supplemental blue light could accelerate flowering of tomato plants and promote fruit ripening about 3-4 days early via promoting ethylene evolution of fruits, which significantly facilitated the processes of color change and maturity in tomato fruits. The contents of lycopene, total phenolic compounds, total flavonoids, vitamin C, and soluble sugar, as well as the overall antioxidant activity of tomato fruits were significantly enhanced by all the supplemental blue light treatments. In all, different frequencies of supplemental blue light prominently reinforced the antioxidant levels and nutritional qualities of tomato fruits, especially lycopene content, and S10 was more optimal for tomato fruits production in a plastic greenhouse.
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Abstract
Cryptochrome 1 (CRY1), a main blue light receptor protein, plays a significant role in several biological processes. However, the expression patterns and function of CRY1 in strawberry have not been identified. Here, the expression profile of CRY1 in different tissues and developmental stages of strawberry fruit, and expression patterns response to abiotic stresses (low temperature, salt and drought) were analyzed. Its subcellular localization, interaction proteins and heterologous overexpression in tobacco were also investigated. The results showed that CRY1 was mainly expressed in leaves and fruits with an expression peak at the initial red stage in strawberry fruit. Abiotic stresses could significantly induce the expression of CRY1. The CRY1 protein was located in both nucleus and cytoplasm. Five proteins (CSN5a-like, JAZ5, eIF3G. NF-YC9, and NDUFB9) interacting with CRY1 were discovered. Genes related flowering times, such as HY5 and CO, in three overexpressed FaCRY1 tobacco lines, were significantly upregulated. Taken together, our results suggested CRY1 have a broad role in biological processes in strawberry.
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Ahammed GJ, Chen Y, Liu C, Yang Y. Light regulation of potassium in plants. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 170:316-324. [PMID: 34954566 DOI: 10.1016/j.plaphy.2021.12.019] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/24/2021] [Accepted: 12/18/2021] [Indexed: 06/14/2023]
Abstract
Essential macronutrient potassium (K) and environmental signal light regulate a number of vital plant biological processes related to growth, development, and stress response. Recent research has shown connections between the perception of light and the regulation of K in plants. Photoreceptors-mediated wavelength-specific light perception activates signaling cascades which mediate stomatal movement by altering K+influx/efflux via K+ channels in the guard cells. The quality, intensity, and duration of light affect the regulation of K nutrition and crop quality. Blue/red illumination or red combined blue light treatment increases the expression levels of K transporter genes, K uptake and accumulation, leading to increased lycopene synthesis and improved fruit color in tomato. Despite the commonalities of light and K in multiple functions, our understanding of light regulation of K and associated physiological and molecular processes is fragmentary. In this review, we take a look at the light-controlled K uptake and utilization in plants and propose working models to show potential mechanisms. We discuss major light signaling components, their possible involvement in K nutrition, stomatal movement and crop quality by linking the perception of light signal and subsequent regulation of K. We also pose some outstanding questions to guide future research. Our analysis suggests that the enhancement of K utilization efficiency by manipulation of light quality and light signaling components can be a promising strategy for K management in crop production.
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Affiliation(s)
- Golam Jalal Ahammed
- College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, 471023, Henan, China
| | - Yue Chen
- Jiangxi Key Laboratory for Postharvest Technology and Nondestructive Testing of Fruits & Vegetables, Collaborative Innovation Center of Post-Harvest Key Technology and Quality Safety of Fruits and Vegetables, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Chaochao Liu
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212021, China
| | - Youxin Yang
- Jiangxi Key Laboratory for Postharvest Technology and Nondestructive Testing of Fruits & Vegetables, Collaborative Innovation Center of Post-Harvest Key Technology and Quality Safety of Fruits and Vegetables, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, China.
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12
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Ahammed GJ, Yang Y. Anthocyanin-mediated arsenic tolerance in plants. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 292:118475. [PMID: 34763015 DOI: 10.1016/j.envpol.2021.118475] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 10/19/2021] [Accepted: 11/05/2021] [Indexed: 06/13/2023]
Abstract
Plants detoxify toxic metal(loid)s by accumulating diverse metabolites. Beside scavenging excess reactive oxygen species (ROS) induced by metal(loid)s, some metabolites chelate metal(loid) ions. Classically, thiol-containing compounds, especially glutathione (GSH) and phytochelatins (PCs) are thought to be the major chelators that conjugate with metal(loid)s in the cytoplasm followed by transport and sequestration in the vacuole. In addition to this classical detoxification pathway, a role for secondary metabolites in metal(loid) detoxification has recently emerged. In particular, anthocyanins, a kind of flavonoids with ROS scavenging potential, contribute to enhanced arsenic tolerance in several plant species. Evidence is accumulating that, in analogy to GSH and PCs, anthocyanins may conjugate with arsenic followed by vacuolar sequestration in the detoxification event. Exogenous application or endogenous accumulation of anthocyanins enhances arsenic tolerance, leading to improved plant growth and productivity. The application of some plant hormones and signaling molecules stimulates endogenous anthocyanin synthesis which confers tolerance to arsenic stress. Anthocyanin biosynthesis is transcriptionally regulated by several transcription factors, including myeloblastosis (MYBs). The light-regulated transcription factor elongated hypocotyl 5 (HY5) also affects anthocyanin biosynthesis, but its role in arsenic tolerance remains elusive. Here, we review the mechanism of arsenic detoxification in plants and the potential role of anthocyanins in arsenic tolerance beyond the classical points of view. Our analysis proposes that anthocyanin manipulation in crop plants may ensure sustainable crop yield and food safety in the marginal lands prone to arsenic pollution.
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Affiliation(s)
- Golam Jalal Ahammed
- College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, 471023, Henan, China
| | - Youxin Yang
- Jiangxi Key Laboratory for Postharvest Technology and Nondestructive Testing of Fruits & Vegetables, Collaborative Innovation Center of Post-Harvest Key Technology and Quality Safety of Fruits and Vegetables, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, China.
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13
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Zhang X, Bisbis M, Heuvelink E, Jiang W, Marcelis LFM. Green light reduces elongation when partially replacing sole blue light independently from cryptochrome 1a. PHYSIOLOGIA PLANTARUM 2021; 173:1946-1955. [PMID: 34453337 PMCID: PMC9293030 DOI: 10.1111/ppl.13538] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 08/18/2021] [Accepted: 08/24/2021] [Indexed: 06/13/2023]
Abstract
Although green light is sometimes neglected, it can have several effects on plant growth and development. Green light is probably sensed by cryptochromes (crys), one of the blue light photoreceptor families. The aim of this study is to investigate the possible interaction between green and blue light and the involvement of crys in the green light response of plant photomorphogenesis. We hypothesize that green light effects on morphology only occur when crys are activated by the presence of blue light. Wild-type Moneymaker (MM), cry1a mutant (cry1a), and two CRY2 overexpressing transgenic lines (CRY2-OX3 and CRY2-OX8) of tomato (Solanum lycopersicum) were grown in a climate chamber without or with green light (30 μmol m-2 s-1 ) on backgrounds of sole red, sole blue and red/blue mixture, with all treatments having the same photosynthetic photon flux density of 150 μmol m-2 s-1 . Green light showed no significant effects on biomass accumulation, nor on leaf characteristics such as leaf area, specific leaf area, and chlorophyll content. However, in all genotypes, green light significantly decreased stem length on a sole blue background, whereas green light hardly affected stem length on sole red and red/blue mixture background. MM, cry1a, and CRY2-OX3/8 plants all exhibited similar responses of stem elongation to green light, indicating that cry1a, and probably cry2, is not involved in this green light effect. We conclude that partially replacing blue light by green light reduces elongation and that this is independent of cry1a.
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Affiliation(s)
- Xue Zhang
- Key Laboratory of Horticultural Crops Genetic Improvement (Ministry of Agriculture), Institute of Vegetables and FlowersChinese Academy of Agricultural SciencesBeijingChina
- Horticulture and Product Physiology GroupWageningen UniversityWageningenThe Netherlands
| | - Mehdi Bisbis
- Horticulture and Product Physiology GroupWageningen UniversityWageningenThe Netherlands
- Leibnitz Institute for Vegetable and Ornamental ProductionGermany
| | - Ep Heuvelink
- Horticulture and Product Physiology GroupWageningen UniversityWageningenThe Netherlands
| | - Weijie Jiang
- Key Laboratory of Horticultural Crops Genetic Improvement (Ministry of Agriculture), Institute of Vegetables and FlowersChinese Academy of Agricultural SciencesBeijingChina
| | - Leo F. M. Marcelis
- Horticulture and Product Physiology GroupWageningen UniversityWageningenThe Netherlands
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Hu Z, Li J, Ding S, Cheng F, Li X, Jiang Y, Yu J, Foyer CH, Shi K. The protein kinase CPK28 phosphorylates ascorbate peroxidase and enhances thermotolerance in tomato. PLANT PHYSIOLOGY 2021; 186:1302-1317. [PMID: 33711164 PMCID: PMC8195530 DOI: 10.1093/plphys/kiab120] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 02/26/2021] [Indexed: 05/02/2023]
Abstract
High temperatures are a major threat to plant growth and development, leading to yield losses in crops. Calcium-dependent protein kinases (CPKs) act as critical components of Ca2+ sensing in plants that transduce rapid stress-induced responses to multiple environmental stimuli. However, the role of CPKs in plant thermotolerance and their mechanisms of action remain poorly understood. To address this issue, tomato (Solanum lycopersicum) cpk28 mutants were generated using a CRISPR-Cas9 gene-editing approach. The responses of mutant and wild-type plants to normal (25°C) and high temperatures (45°C) were documented. Thermotolerance was significantly decreased in the cpk28 mutants, which showed increased heat stress-induced accumulation of reactive oxygen species (ROS) and levels of protein oxidation, together with decreased activities of ascorbate peroxidase (APX) and other antioxidant enzymes. The redox status of ascorbate and glutathione were also modified. Using a yeast two-hybrid library screen and protein interaction assays, we provide evidence that CPK28 directly interacts with cytosolic APX2. Mutations in APX2 rendered plants more sensitive to high temperatures, whereas the addition of exogenous reduced ascorbate (AsA) rescued the thermotolerance phenotype of the cpk28 mutants. Moreover, protein phosphorylation analysis demonstrated that CPK28 phosphorylates the APX2 protein at Thr-59 and Thr-164. This process is suggested to be responsive to Ca2+ stimuli and may be required for CPK28-mediated thermotolerance. Taken together, these results demonstrate that CPK28 targets APX2, thus improving thermotolerance. This study suggests that CPK28 is an attractive target for the development of improved crop cultivars that are better adapted to heat stress in a changing climate.
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Affiliation(s)
- Zhangjian Hu
- Department of Horticulture, Zhejiang University, Hangzhou 310058, China
| | - Jianxin Li
- Department of Horticulture, Zhejiang University, Hangzhou 310058, China
| | - Shuting Ding
- Department of Horticulture, Zhejiang University, Hangzhou 310058, China
| | - Fei Cheng
- Department of Horticulture, Zhejiang University, Hangzhou 310058, China
| | - Xin Li
- Key Laboratory of Tea Quality and Safety Control, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
| | - Yuping Jiang
- Department of Ecological Technology and Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Jingquan Yu
- Department of Horticulture, Zhejiang University, Hangzhou 310058, China
| | - Christine H. Foyer
- School of Biosciences, College of Life and Environmental Sciences, University of Birmingham, Edgbaston B15 2TT, UK
| | - Kai Shi
- Department of Horticulture, Zhejiang University, Hangzhou 310058, China
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Hangzhou 310058, China
- Author for communication:
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15
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Kilambi HV, Dindu A, Sharma K, Nizampatnam NR, Gupta N, Thazath NP, Dhanya AJ, Tyagi K, Sharma S, Kumar S, Sharma R, Sreelakshmi Y. The new kid on the block: a dominant-negative mutation of phototropin1 enhances carotenoid content in tomato fruits. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2021; 106:844-861. [PMID: 33608974 DOI: 10.1111/tpj.15206] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 01/15/2021] [Accepted: 02/10/2021] [Indexed: 06/12/2023]
Abstract
Phototropins, the UVA-blue light photoreceptors, endow plants to detect the direction of light and optimize photosynthesis by regulating positioning of chloroplasts and stomatal gas exchange. Little is known about their functions in other developmental responses. A tomato Non-phototropic seedling1 (Nps1) mutant, bearing an Arg495His substitution in the vicinity of LOV2 domain in phototropin1, dominant-negatively blocks phototropin1 responses. The fruits of Nps1 mutant were enriched in carotenoids, particularly lycopene, compared with its parent, Ailsa Craig. On the contrary, CRISPR/CAS9-edited loss of function phototropin1 mutants displayed subdued carotenoids compared with the parent. The enrichment of carotenoids in Nps1 fruits is genetically linked with the mutation and exerted in a dominant-negative fashion. Nps1 also altered volatile profiles with high levels of lycopene-derived 6-methyl 5-hepten2-one. The transcript levels of several MEP and carotenogenesis pathway genes were upregulated in Nps1. Nps1 fruits showed altered hormonal profiles with subdued ethylene emission and reduced respiration. Proteome profiles showed a causal link between higher carotenogenesis and increased levels of protein protection machinery, which may stabilize proteins contributing to MEP and carotenogenesis pathways. The enhancement of carotenoid content by Nps1 in a dominant-negative fashion offers a potential tool for high lycopene-bearing hybrid tomatoes.
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Affiliation(s)
- Himabindu Vasuki Kilambi
- Repository of Tomato Genomics Resources, Department of Plant Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Alekhya Dindu
- Repository of Tomato Genomics Resources, Department of Plant Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Kapil Sharma
- Repository of Tomato Genomics Resources, Department of Plant Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Narasimha Rao Nizampatnam
- Repository of Tomato Genomics Resources, Department of Plant Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Neha Gupta
- Repository of Tomato Genomics Resources, Department of Plant Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Nikhil Padmanabhan Thazath
- Repository of Tomato Genomics Resources, Department of Plant Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Ajayakumar Jaya Dhanya
- Repository of Tomato Genomics Resources, Department of Plant Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Kamal Tyagi
- Repository of Tomato Genomics Resources, Department of Plant Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Sulabha Sharma
- Repository of Tomato Genomics Resources, Department of Plant Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Sumit Kumar
- Repository of Tomato Genomics Resources, Department of Plant Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Rameshwar Sharma
- Repository of Tomato Genomics Resources, Department of Plant Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Yellamaraju Sreelakshmi
- Repository of Tomato Genomics Resources, Department of Plant Sciences, University of Hyderabad, Hyderabad, 500046, India
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Dong H, Hu C, Liu C, Wang J, Zhou Y, Yu J. ELONGATED HYPOCOTYL 5 mediates blue light-induced starch degradation in tomato. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:2627-2641. [PMID: 33377142 DOI: 10.1093/jxb/eraa604] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 12/24/2020] [Indexed: 05/25/2023]
Abstract
Starch is the major storage carbohydrate in plants, and its metabolism in chloroplasts depends mainly on light. However, the mechanism through which photoreceptors regulate starch metabolism in chloroplasts is unclear. In this study, we found that the cryptochrome 1a (CRY1a)-mediated blue light signal is critical for regulating starch accumulation by inducing starch degradation through the transcription factor HY5 in chloroplasts in tomato. cry1a mutants and HY5-RNAi plants accumulated more starch and presented lower transcript levels of starch degradation-related genes in their leaves than wild-type plants. Blue light significantly induced the transcription of starch degradation-related genes in wild-type and CRY1a- or HY5-overexpressing plants but had little effect in cry1a and HY5-RNAi plants. Dual-luciferase assays, electrophoretic mobility shift assays, and chromatin immunoprecipitation-qPCR revealed that HY5 could activate the starch degradation-related genes PWD, BAM1, BAM3, BAM8, MEX1, and DPE1 by directly binding to their promoters. Silencing of HY5 and these starch degradation-related genes in CRY1a-overexpressing plants led to increased accumulation of starch and decreased accumulation of soluble sugars. The findings presented here not only deepen our understanding of how light controls starch degradation and sugar accumulation but also allow us to explore potential targets for improving crop quality.
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Affiliation(s)
- Han Dong
- College of Horticulture, Northwest Agriculture & Forestry University, Yangling, Shaanxi, China
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, China
| | - Chaoyi Hu
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, China
| | - Chaochao Liu
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, China
| | - Jiachun Wang
- College of Horticulture, Northwest Agriculture & Forestry University, Yangling, Shaanxi, China
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, China
| | - Yanhong Zhou
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, China
- Key Laboratory of Horticultural Plants Growth, Development and Quality Improvement, Agricultural Ministry of China, Hangzhou, China
| | - Jingquan Yu
- College of Horticulture, Northwest Agriculture & Forestry University, Yangling, Shaanxi, China
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, China
- Key Laboratory of Horticultural Plants Growth, Development and Quality Improvement, Agricultural Ministry of China, Hangzhou, China
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17
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D'Amico-Damião V, Lúcio JCB, Oliveira R, Gaion LA, Barreto RF, Carvalho RF. Cryptochrome 1a depends on blue light fluence rate to mediate osmotic stress responses in tomato. JOURNAL OF PLANT PHYSIOLOGY 2021; 258-259:153374. [PMID: 33626482 DOI: 10.1016/j.jplph.2021.153374] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 12/01/2020] [Accepted: 01/11/2021] [Indexed: 06/12/2023]
Abstract
The participation of plant cryptochromes in water deficit response mechanisms has been highlighted in several reports. However, the role of tomato (Solanum lycopersicum L.) cryptochrome 1a (cry1a) in the blue light fluence-dependent modulation of the water deficit response remains largely elusive. The tomato cry1a mutant and its wild-type counterpart were grown in water (no stress) or PEG6000 (osmotic stress) treatments under white light (60 μmol m-2 s-1) or from low to high blue light fluence (1, 5, 10, 15 and 25 μmol m-2 s-1). We first demonstrate that under nonstress conditions cry1a regulates seedling growth by mechanisms that involve pigmentation, lipid peroxidation and osmoprotectant accumulation in a blue light-dependent manner. In addition, we further highlighted under osmotic stress conditions that cry1a increased tomato growth by reduced malondialdehyde (MDA) and proline accumulation. Although blue light is an environmental signal that influences osmotic stress responses mediated by tomato cry1a, specific blue light fluence rates are required during these responses. Here, we show that CRY1a manipulation may be a potential biotechnological target to develop a drought-tolerant tomato variety. Nevertheless, the complete understanding of this phenomenon requires further investigation.
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Affiliation(s)
- Victor D'Amico-Damião
- Department of Biology Applied to Agriculture, São Paulo State University (UNESP), 14884-900, Jaboticabal, Brazil
| | - José Clebson Barbosa Lúcio
- Department of Biology Applied to Agriculture, São Paulo State University (UNESP), 14884-900, Jaboticabal, Brazil
| | - Reginaldo Oliveira
- Department of Biology Applied to Agriculture, São Paulo State University (UNESP), 14884-900, Jaboticabal, Brazil
| | | | | | - Rogério Falleiros Carvalho
- Department of Biology Applied to Agriculture, São Paulo State University (UNESP), 14884-900, Jaboticabal, Brazil.
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18
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Characterization of the FLAVIN-BINDING, KELCH REPEAT, F-BOX 1 Homolog SlFKF1 in Tomato as a Model for Plants with Fleshy Fruit. Int J Mol Sci 2021; 22:ijms22041735. [PMID: 33572254 PMCID: PMC7914597 DOI: 10.3390/ijms22041735] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 01/25/2021] [Accepted: 02/04/2021] [Indexed: 12/30/2022] Open
Abstract
FLAVIN-BINDING, KELCH REPEAT, F-BOX 1 (FKF1) is a blue-light receptor whose function is related to flowering promotion under long-day conditions in Arabidopsis thaliana. However, information about the physiological role of FKF1 in day-neutral plants and even the physiological role other than photoperiodic flowering is lacking. Thus, the FKF1 homolog SlFKF1 was investigated in tomato, a day-neutral plant and a useful model for plants with fleshy fruit. It was confirmed that SlFKF1 belongs to the FKF1 group by phylogenetic tree analysis. The high sequence identity with A. thaliana FKF1, the conserved amino acids essential for function, and the similarity in the diurnal change in expression suggested that SlFKF1 may have similar functions to A. thaliana FKF1. CONSTANS (CO) is a transcription factor regulated by FKF1 and is responsible for the transcription of genes downstream of CO. cis-Regulatory elements targeted by CO were found in the promoter region of SINGLE FLOWER TRUSS (SFT) and RIN, which are involved in the regulation of flowering and fruit ripening, respectively. The blue-light effects on SlFKF1 expression, flowering, and fruit lycopene concentration have been observed in this study and previous studies. It was confirmed in RNA interference lines that the low expression of SlFKF1 is associated with late flowering with increased leaflets and low lycopene concentrations. This study sheds light on the various physiological roles of FKF1 in plants.
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D'Amico-Damião V, Dodd IC, Oliveira R, Lúcio JCB, Rossatto DR, Carvalho RF. Cryptochrome 1a of tomato mediates long-distance signaling of soil water deficit. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2021; 303:110763. [PMID: 33487348 DOI: 10.1016/j.plantsci.2020.110763] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 11/12/2020] [Accepted: 11/14/2020] [Indexed: 06/12/2023]
Abstract
Although the blue light photoreceptors cryptochromes mediate the expression of genes related to reactive oxygen species, whether cryptochrome 1a (cry1a) regulates local and long-distance signaling of water deficit in tomato (Solanum lycopersicum L.) is unknown. Thus the cry1a tomato mutant and its wild-type (WT) were reciprocally grafted (WT/WT; cry1a/cry1a; WT/cry1a; cry1a/WT; as scion/rootstock) or grown on their own roots (WT and cry1a) under irrigated and water deficit conditions. Plant growth, pigmentation, oxidative stress, water relations, stomatal characteristics and leaf gas exchange were measured. WT and cry1a plants grew similarly under irrigated conditions, whereas cry1a plants had less root biomass and length and higher tissue malondialdehyde concentrations under water deficit. Despite greater oxidative stress, cry1a maintained chlorophyll and carotenoid concentrations in drying soil. Lower stomatal density of cry1a likely increased its leaf relative water content (RWC). In grafted plants, scion genotype largely determined shoot and root biomass accumulation irrespective of water deficit. In chimeric plants grown in drying soil, cry1a rootstocks increased RWC while WT rootstocks maintained photosynthesis of cry1a scions. Manipulating tomato CRY1a may enhance plant drought tolerance by altering leaf pigmentation and gas exchange during soil drying via local and long-distance effects.
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Affiliation(s)
- Victor D'Amico-Damião
- Department of Biology Applied to Agriculture, São Paulo State University (UNESP), 14884-900, Jaboticabal, Brazil
| | - Ian C Dodd
- The Lancaster Environment Centre, Lancaster University, Lancaster, LA1 4YQ, UK
| | - Reginaldo Oliveira
- Department of Biology Applied to Agriculture, São Paulo State University (UNESP), 14884-900, Jaboticabal, Brazil
| | - José C B Lúcio
- Department of Biology Applied to Agriculture, São Paulo State University (UNESP), 14884-900, Jaboticabal, Brazil
| | - Davi R Rossatto
- Department of Biology Applied to Agriculture, São Paulo State University (UNESP), 14884-900, Jaboticabal, Brazil
| | - Rogério F Carvalho
- Department of Biology Applied to Agriculture, São Paulo State University (UNESP), 14884-900, Jaboticabal, Brazil.
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20
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Fantini E, Facella P. Cryptochromes in the field: how blue light influences crop development. PHYSIOLOGIA PLANTARUM 2020; 169:336-346. [PMID: 32175597 DOI: 10.1111/ppl.13088] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 03/03/2020] [Accepted: 03/11/2020] [Indexed: 05/02/2023]
Abstract
Light is a pivotal environmental element capable of influencing multiple physiological processes across the entire plant life cycle. Over the course of their evolution, plants have developed several families of photoreceptors such as phytochromes, phototropins, ultraviolet (UV) resistance locus 8 and cryptochromes (crys), in order to sense light stimuli and respond to their changes. Numerous genetic studies have demonstrated that functional alterations to these photoreceptors cause a change in important agronomical traits. In particular, crys, which absorb UVA/blue light, can influence seed germination, flowering induction, plant architecture, fruit metabolic content and resistance to biotic and abiotic stresses. In the years to come, the rising temperatures and alterations to precipitation patterns generated by climate change will present a dramatic challenge for our agricultural system, with its few varieties characterized by a narrow genetic pool derived from artificial selection. Here, we review the main roles of crys in determining important agronomic traits in crops, we discuss the opportunities of using these photoreceptors as genetic targets for tuning plant physiological responses to environmental change, and the molecular strategies used so far to manipulate this family of photoreceptors.
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Affiliation(s)
- Elio Fantini
- Agenzia Nazionale per le Nuove Tecnologie, l'Energia e lo Sviluppo Economico Sostenibile (ENEA), Trisaia Research Center, 75026, Rotondella (Matera), Italy
| | - Paolo Facella
- Agenzia Nazionale per le Nuove Tecnologie, l'Energia e lo Sviluppo Economico Sostenibile (ENEA), Trisaia Research Center, 75026, Rotondella (Matera), Italy
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21
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Yan S, Chen N, Huang Z, Li D, Zhi J, Yu B, Liu X, Cao B, Qiu Z. Anthocyanin Fruit encodes an R2R3-MYB transcription factor, SlAN2-like, activating the transcription of SlMYBATV to fine-tune anthocyanin content in tomato fruit. THE NEW PHYTOLOGIST 2020; 225:2048-2063. [PMID: 31625612 DOI: 10.1111/nph.16272] [Citation(s) in RCA: 96] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Accepted: 10/13/2019] [Indexed: 05/20/2023]
Abstract
Anthocyanin fruit (Aft) and atroviolacea (atv) were characterized in wild tomato and can enhance anthocyanin content in tomato fruit. However, the gene underlying the Aft locus and the mechanism by which Aft and atv act remain largely unknown. In this study, the Aft locus was fine-mapped to an approximately 145-kb interval on chromosome 10, excluding SlAN2 (Solyc10g086250), SlANT1 (Solyc10g086260) and SlANT1-like (Solyc10g086270), which have previously been suggested as candidates. Thus, the R2R3-MYB transcription factor SlAN2-like (Solyc10g086290) was considered the best candidate gene for Aft. The CRISPR/Cas9-mediated SlAN2-like mutants show a much lower accumulation of anthocyanins associated with the downregulation of multiple anthocyanin-related genes compared to the wild-type tomato, indicating that SlAN2-like is responsible for the Aft phenotype. The repressive function of SlMYBATV also was confirmed through the CRISPR/Cas9 approach. A yeast-two-hybrid assay revealed that SlMYBATV interacts with the bHLH protein SlJAF13. Furthermore, yeast-one-hybrid and dual-luciferase transient expression assays showed that Aft directly binds to the SlMYBATV promoter and activates its expression. The results herein provide candidate genes to enhance anthocyanin content in tomato fruit. This research also provides insight into a mechanism involving the Aft-SlMYBATV pathway that fine-tunes anthocyanin accumulation in tomato fruit.
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Affiliation(s)
- Shuangshuang Yan
- Key Laboratory of Horticultural Crop Biology and Germplasm Innovation in South China, Ministry of Agriculture, College of Horticulture, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Vegetable Engineering and Technology Research Center, South China Agricultural University, Guangzhou, 510642, China
| | - Na Chen
- Key Laboratory of Horticultural Crop Biology and Germplasm Innovation in South China, Ministry of Agriculture, College of Horticulture, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Vegetable Engineering and Technology Research Center, South China Agricultural University, Guangzhou, 510642, China
| | - Zejun Huang
- The Key Laboratory of Biology and Genetic Improvement of Horticultural Crops of the Ministry of Agriculture, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100086, China
| | - Dongjing Li
- Key Laboratory of Horticultural Crop Biology and Germplasm Innovation in South China, Ministry of Agriculture, College of Horticulture, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Vegetable Engineering and Technology Research Center, South China Agricultural University, Guangzhou, 510642, China
| | - Junjie Zhi
- Key Laboratory of Horticultural Crop Biology and Germplasm Innovation in South China, Ministry of Agriculture, College of Horticulture, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Vegetable Engineering and Technology Research Center, South China Agricultural University, Guangzhou, 510642, China
| | - Bingwei Yu
- Key Laboratory of Horticultural Crop Biology and Germplasm Innovation in South China, Ministry of Agriculture, College of Horticulture, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Vegetable Engineering and Technology Research Center, South China Agricultural University, Guangzhou, 510642, China
| | - Xiaoxi Liu
- Guangdong Key Laboratory of New Technology Research of Vegetable, Vegetable Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Bihao Cao
- Key Laboratory of Horticultural Crop Biology and Germplasm Innovation in South China, Ministry of Agriculture, College of Horticulture, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Vegetable Engineering and Technology Research Center, South China Agricultural University, Guangzhou, 510642, China
| | - Zhengkun Qiu
- Key Laboratory of Horticultural Crop Biology and Germplasm Innovation in South China, Ministry of Agriculture, College of Horticulture, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Vegetable Engineering and Technology Research Center, South China Agricultural University, Guangzhou, 510642, China
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22
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Sun T, Li L. Toward the 'golden' era: The status in uncovering the regulatory control of carotenoid accumulation in plants. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2020; 290:110331. [PMID: 31779888 DOI: 10.1016/j.plantsci.2019.110331] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 10/21/2019] [Accepted: 11/01/2019] [Indexed: 05/17/2023]
Abstract
Carotenoids are essential pigments to plants and important natural products to humans. Carotenoids as both primary and specialized metabolites fulfill multifaceted functions in plants. As such, carotenoid accumulation (a net process of biosynthesis, degradation and sequestration) is subjected to complicated regulation throughout plant life cycle in response to developmental and environmental signals. Investigation of transcriptional regulation of carotenoid metabolic genes remains the focus in understanding the regulatory control of carotenoid accumulation. While discovery of bona fide carotenoid metabolic regulators is still challenging, the recent progress of identification of various transcription factors and regulators helps us to construct hierarchical regulatory network of carotenoid accumulation. The elucidation of carotenoid regulatory mechanisms at protein level and in chromoplast provides some insights into post-translational regulation of carotenogenic enzymes and carotenoid sequestration in plastid sink. This review briefly describes the pathways and main flux-controlling steps for carotenoid accumulation in plants. It highlights our recent understanding of the regulatory mechanisms underlying carotenoid accumulation at both transcriptional and post-translational levels. It also discusses the opportunities to expand toolbox for further shedding light upon the intrinsic regulation of carotenoid accumulation in plants.
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Affiliation(s)
- Tianhu Sun
- Robert W Holley Center for Agriculture and Health, USDA-ARS, Cornell University, Ithaca, New York, 14853, USA; Plant Breeding and Genetics Section, School of Integrative Plant Science, Cornell University, Ithaca, New York, 14853, USA
| | - Li Li
- Robert W Holley Center for Agriculture and Health, USDA-ARS, Cornell University, Ithaca, New York, 14853, USA; Plant Breeding and Genetics Section, School of Integrative Plant Science, Cornell University, Ithaca, New York, 14853, USA.
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23
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Qiu Z, Wang H, Li D, Yu B, Hui Q, Yan S, Huang Z, Cui X, Cao B. Identification of Candidate HY5-Dependent and -Independent Regulators of Anthocyanin Biosynthesis in Tomato. PLANT & CELL PHYSIOLOGY 2019; 60:643-656. [PMID: 30597099 DOI: 10.1093/pcp/pcy236] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 12/05/2018] [Indexed: 05/24/2023]
Abstract
High quantities of anthocyanins in plants confer potential protective benefits against biotic and abiotic stressors. Studies have shown that the bZIP transcription factor HY5 plays a key role in controlling anthocyanin accumulation in response to light. However, in hy5 mutants, residual anthocyanins have been detected, indicating that other regulators exist to regulate anthocyanin biosynthesis in an HY5-independent manner. Here, we employed the CRISPR/Cas9 (clustered regularly interspersed short palindromic repeats/CRISPR-associated protein 9) system specifically to induce targeted mutagenesis of SlHY5 in the purple tomato cultivar 'Indigo Rose'. The T2 generation of tomato plants homozygous for the null allele of the SlHY5 frameshift mutated by a 1 bp insertion contained a lower anthocyanin content. Transcriptional analysis showed that most of the anthocyanin biosynthesis structural genes and several regulatory genes were down-regulated in the hy5 mutant lines. With transcriptome analyses of the various tissues from hy5 mutant lines, eight candidate transcription factors were identified that may regulate anthocyanin biosynthesis in an HY5-independent manner. These findings deepen our understanding of how light controls anthocyanin accumulation and facilitate the identification of the regulators of anthocyanin biosynthesis in an HY5-independent manner.
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Affiliation(s)
- Zhengkun Qiu
- Department of Vegetable Science, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
- Guangdong Vegetable Engineering and Technology Research Center, Guangzhou 510642, China
| | - Haijing Wang
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops of the Ministry of Agriculture, Sino-Dutch Joint Laboratory of Horticultural Genomics, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 10081, China
| | - Dongjing Li
- Department of Vegetable Science, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
- Guangdong Vegetable Engineering and Technology Research Center, Guangzhou 510642, China
| | - Bingwei Yu
- Department of Vegetable Science, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
- Guangdong Vegetable Engineering and Technology Research Center, Guangzhou 510642, China
| | - Qiuling Hui
- Department of Vegetable Science, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
- Guangdong Vegetable Engineering and Technology Research Center, Guangzhou 510642, China
| | - Shuangshuang Yan
- Department of Vegetable Science, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
- Guangdong Vegetable Engineering and Technology Research Center, Guangzhou 510642, China
| | - Zejun Huang
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops of the Ministry of Agriculture, Sino-Dutch Joint Laboratory of Horticultural Genomics, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 10081, China
| | - Xia Cui
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops of the Ministry of Agriculture, Sino-Dutch Joint Laboratory of Horticultural Genomics, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 10081, China
| | - Bihao Cao
- Department of Vegetable Science, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
- Guangdong Vegetable Engineering and Technology Research Center, Guangzhou 510642, China
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24
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Wasternack C, Strnad M. Jasmonates: News on Occurrence, Biosynthesis, Metabolism and Action of an Ancient Group of Signaling Compounds. Int J Mol Sci 2018; 19:E2539. [PMID: 30150593 PMCID: PMC6164985 DOI: 10.3390/ijms19092539] [Citation(s) in RCA: 118] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 08/22/2018] [Accepted: 08/22/2018] [Indexed: 02/07/2023] Open
Abstract
: Jasmonic acid (JA) and its related derivatives are ubiquitously occurring compounds of land plants acting in numerous stress responses and development. Recent studies on evolution of JA and other oxylipins indicated conserved biosynthesis. JA formation is initiated by oxygenation of α-linolenic acid (α-LeA, 18:3) or 16:3 fatty acid of chloroplast membranes leading to 12-oxo-phytodienoic acid (OPDA) as intermediate compound, but in Marchantiapolymorpha and Physcomitrellapatens, OPDA and some of its derivatives are final products active in a conserved signaling pathway. JA formation and its metabolic conversion take place in chloroplasts, peroxisomes and cytosol, respectively. Metabolites of JA are formed in 12 different pathways leading to active, inactive and partially active compounds. The isoleucine conjugate of JA (JA-Ile) is the ligand of the receptor component COI1 in vascular plants, whereas in the bryophyte M. polymorpha COI1 perceives an OPDA derivative indicating its functionally conserved activity. JA-induced gene expressions in the numerous biotic and abiotic stress responses and development are initiated in a well-studied complex regulation by homeostasis of transcription factors functioning as repressors and activators.
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Affiliation(s)
- Claus Wasternack
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry, Weinberg 3, D-06120 Halle (Saale), Germany.
- Laboratory of Growth Regulators, Institute of Experimental Botany AS CR & Palacký University, Šlechtitelů 11, CZ-78371 Olomouc, Czech Republic.
| | - Miroslav Strnad
- Laboratory of Growth Regulators, Institute of Experimental Botany AS CR & Palacký University, Šlechtitelů 11, CZ-78371 Olomouc, Czech Republic.
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25
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Liu CC, Chi C, Jin LJ, Zhu J, Yu JQ, Zhou YH. The bZip transcription factor HY5 mediates CRY1a-induced anthocyanin biosynthesis in tomato. PLANT, CELL & ENVIRONMENT 2018; 41:1762-1775. [PMID: 29566255 DOI: 10.1111/pce.13171] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 02/02/2018] [Accepted: 02/09/2018] [Indexed: 05/19/2023]
Abstract
The production of anthocyanin is regulated by light and corresponding photoreceptors. In this study, we found that exposure to blue light and overexpression of CRY1a are associated with increased accumulation of anthocyanin in tomato (Solanum lycopersicum L.). These responses are the result of changes in mRNA and the protein levels of SlHY5, which is a transcription factor. In vitro and in vivo experiments using electrophoretic mobility shift assay and ChIP-qPCR assays revealed that SlHY5 could directly recognize and bind to the G-box and ACGT-containing element in the promoters of anthocyanin biosynthesis genes, such as chalcone synthase 1, chalcone synthase 2, and dihydroflavonol 4-reductase. Silencing of SlHY5 in OE-CRY1a lines decreased the accumulation of anthocyanin. The findings presented here not only deepened our understanding of how light controls anthocyanin biosynthesis and associated photoprotection in tomato leaves, but also allowed us to explore potential targets for improving pigment production.
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Affiliation(s)
- Chao-Chao Liu
- Department of Horticulture, Zijingang Campus, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058, China
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212021, China
| | - Cheng Chi
- Department of Horticulture, Zijingang Campus, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058, China
| | - Li-Juan Jin
- Department of Horticulture, Zijingang Campus, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058, China
| | - Jianhua Zhu
- Department of Plant Science and Landscape Architecture, University of Maryland, College Park, MD, 20742, USA
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212021, China
| | - Jing-Quan Yu
- Department of Horticulture, Zijingang Campus, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058, China
- Key Laboratory of Horticultural Plants Growth, Development and Quality Improvement, Agricultural Ministry of China, Zijingang Road 866, Hangzhou, 310058, China
| | - Yan-Hong Zhou
- Department of Horticulture, Zijingang Campus, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058, China
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Cruz AB, Bianchetti RE, Alves FRR, Purgatto E, Peres LEP, Rossi M, Freschi L. Light, Ethylene and Auxin Signaling Interaction Regulates Carotenoid Biosynthesis During Tomato Fruit Ripening. FRONTIERS IN PLANT SCIENCE 2018; 9:1370. [PMID: 30279694 PMCID: PMC6153336 DOI: 10.3389/fpls.2018.01370] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Accepted: 08/29/2018] [Indexed: 05/17/2023]
Abstract
Light signaling and plant hormones, particularly ethylene and auxins, have been identified as important regulators of carotenoid biosynthesis during tomato fruit ripening. However, whether and how the light and hormonal signaling cascades crosstalk to control this metabolic route remain poorly elucidated. Here, the potential involvement of ethylene and auxins in the light-mediated regulation of tomato fruit carotenogenesis was investigated by comparing the impacts of light treatments and the light-hyperresponsive high pigment-2 (hp2) mutation on both carotenoid synthesis and hormonal signaling. Under either light or dark conditions, the overaccumulation of carotenoids in hp2 ripening fruits was associated with disturbed ethylene production, increased expression of genes encoding master regulators of ripening and higher ethylene sensitivity and signaling output. The increased ethylene sensitivity observed in hp2 fruits was associated with the differential expression of genes encoding ethylene receptors and downstream signaling transduction elements, including the downregulation of the transcription factor ETHYLENE RESPONSE FACTOR.E4, a repressor of carotenoid synthesis. Accordingly, treatments with exogenous ethylene promoted carotenoid biosynthetic genes more intensively in hp2 than in wild-type fruits. Moreover, the loss of HP2 function drastically altered auxin signaling in tomato fruits, resulting in higher activation of the auxin-responsive promoter DR5, severe down-regulation of AUXIN/INDOLE-3-ACETIC ACID (Aux/IAA) genes and altered accumulation of AUXIN RESPONSE FACTOR (ARF) transcripts. Both tomato ARF2 paralogues (Sl-ARF2a and SlARF2b) were up-regulated in hp2 fruits, which agrees with the promotive roles played by these ARFs in tomato fruit ripening and carotenoid biosynthesis. Among the genes differentially expressed in hp2 fruits, the additive effect of light treatment and loss of HP2 function was particularly evident for those encoding carotenoid biosynthetic enzymes, ethylene-related transcription factors, Aux/IAAs and ARFs. Altogether, the data uncover the involvement of ethylene and auxin as part of the light signaling cascades controlling tomato fruit metabolism and provide a new link between light signaling, plant hormone sensitivity and carotenoid metabolism in ripening fruits.
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Affiliation(s)
- Aline Bertinatto Cruz
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil
| | | | | | - Eduardo Purgatto
- Departamento de Alimentos e Nutrição Experimental, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, Brazil
| | - Lazaro Eustaquio Pereira Peres
- Departamento de Ciências Biológicas, Escola Superior de Agricultura “Luiz de Queiroz", Universidade de São Paulo, Piracicaba, Brazil
| | - Magdalena Rossi
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil
| | - Luciano Freschi
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil
- *Correspondence: Luciano Freschi,
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27
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D’Amico-Damião V, Carvalho RF. Cryptochrome-Related Abiotic Stress Responses in Plants. FRONTIERS IN PLANT SCIENCE 2018; 9:1897. [PMID: 30619439 PMCID: PMC6305750 DOI: 10.3389/fpls.2018.01897] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 12/06/2018] [Indexed: 05/03/2023]
Abstract
It is well known that light is a crucial environmental factor that has a fundamental role in plant growth and development from seed germination to fruiting. For this process, plants contain versatile and multifaceted photoreceptor systems to sense variations in the light spectrum and to acclimate to a range of ambient conditions. Five main groups of photoreceptors have been found in higher plants, cryptochromes, phototropins, UVR8, zeitlupes, and phytochromes, but the last one red/far red wavelengths photoreceptor is the most characterized. Among the many responses modulated by phytochromes, these molecules play an important role in biotic and abiotic stress responses, which is one of the most active research topics in plant biology, especially their effect on agronomic traits. However, regarding the light spectrum, it is not surprising to consider that other photoreceptors are also part of the stress response modulated by light. In fact, it has become increasingly evident that cryptochromes, which mainly absorb in the blue light region, also act as key regulators of a range of plant stress responses, such as drought, salinity, heat, and high radiation. However, this information is rarely evidenced in photomorphogenetic studies. Therefore, the scope of the present review is to compile and discuss the evidence on the abiotic stress responses in plants that are modulated by cryptochromes.
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