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Chen BC, Wu XJ, Guo HC, Xiao JP. Effects of appropriate low-temperature treatment on the yield and quality of pigmented potato (Solanum tuberosum L.) tubers. BMC PLANT BIOLOGY 2024; 24:274. [PMID: 38605295 PMCID: PMC11007950 DOI: 10.1186/s12870-024-04951-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Accepted: 03/26/2024] [Indexed: 04/13/2024]
Abstract
Temperature is one of the important environmental factors affecting plant growth, yield and quality. Moreover, appropriately low temperature is also beneficial for tuber coloration. The red potato variety Jianchuanhong, whose tuber color is susceptible to temperature, and the purple potato variety Huaxinyangyu, whose tuber color is stable, were used as experimental materials and subjected to 20 °C (control check), 15 °C and 10 °C treatments during the whole growth period. The effects of temperature treatment on the phenotype, the expression levels of structural genes related to anthocyanins and the correlations of each indicator were analyzed. The results showed that treatment at 10 °C significantly inhibited the potato plant height, and the chlorophyll content and photosynthetic parameters in the leaves were reduced, and the enzyme activities of SOD and POD were significantly increased, all indicating that the leaves were damaged. Treatment at 10 °C also affected the tuberization of Huaxinyangyu and reduced the tuberization and coloring of Jianchuanhong, while treatment at 15 °C significantly increased the stem diameter, root-to-shoot ratio, yield and content of secondary metabolites, especially anthocyanins. Similarly, the expression of structural genes were enhanced in two pigmented potatoes under low-temperature treatment conditions. In short, proper low temperature can not only increase yield but also enhance secondary metabolites production. Previous studies have not focused on the effects of appropriate low-temperature treatment during the whole growth period of potato on the changes in metabolites during tuber growth and development, these results can provide a theoretical basis and technical guidance for the selection of pigmented potatoes with better nutritional quality planting environment and the formulation of cultivation measures.
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Affiliation(s)
- Bi-Cong Chen
- College of Agronomy and Biotechnology, Yunnan Agricultural University, No.95 Jinhei Road, Panlong District, Kunming City, Yunnan, 650051, China
| | - Xiao-Jie Wu
- College of Agronomy and Biotechnology, Yunnan Agricultural University, No.95 Jinhei Road, Panlong District, Kunming City, Yunnan, 650051, China
| | - Hua-Chun Guo
- College of Agronomy and Biotechnology, Yunnan Agricultural University, No.95 Jinhei Road, Panlong District, Kunming City, Yunnan, 650051, China
| | - Ji-Ping Xiao
- College of Agronomy and Biotechnology, Yunnan Agricultural University, No.95 Jinhei Road, Panlong District, Kunming City, Yunnan, 650051, China.
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Mofokeng MM, Prinsloo G, Araya HT, Amoo SO, du Plooy CP, Mashela PW. NADES Compounds Identified in Hypoxis hemerocallidea Corms during Dormancy. PLANTS 2022; 11:plants11182387. [PMID: 36145788 PMCID: PMC9503605 DOI: 10.3390/plants11182387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 09/06/2022] [Accepted: 09/06/2022] [Indexed: 12/01/2022]
Abstract
Soaking Hypoxis hemerocallidea corms in distilled water improved the propagation and development of cormlets, suggesting the potential leaching-out of inhibitory chemical compounds. To investigate the presence of inhibitory compounds, nuclear magnetic resonance (NMR) spectral data of the leachate from dormant H. hemerocallidea corms were obtained using a 600 MHz 1H-NMR spectrometer. The 1H-NMR analysis led to the identification of choline, succinate, propylene glycol, and lactose, as inhibitory compounds. These four chemical compounds are part of the “Natural Deep Eutectic Solvents” (NADES) that protect plant cells during stress periods, each of which has the potential to inhibit bud growth and development. These compounds are supposedly leached out of the corms during the first rain under natural conditions, possibly accompanied by changes in the ratios of dormancy-breaking phytohormones and inhibitory compounds, to release bud dormancy. The identified chemical compounds heralded a novel frontier in the vegetative propagation of H. hemerocallidea as a medicinal plant, and for its enhanced sustainable uses.
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Affiliation(s)
- Motiki M. Mofokeng
- Agricultural Research Council—Vegetable, Industrial and Medicinal Plants (ARC-VIMP), Private Bag X293, Pretoria 0001, South Africa
- Green Technologies Research Centre, University of Limpopo, Private Bag X1106, Sovenga 0727, South Africa
- Correspondence: (M.M.M.); (H.T.A.); (S.O.A.); Tel.: +27-12-808-8000 (M.M.M. & H.T.A. & S.O.A)
| | - Gerhard Prinsloo
- Department of Agriculture and Animal Health, University of South Africa, Private Bag X6, Johannesburg 1710, South Africa
| | - Hintsa T. Araya
- Agricultural Research Council—Vegetable, Industrial and Medicinal Plants (ARC-VIMP), Private Bag X293, Pretoria 0001, South Africa
- Correspondence: (M.M.M.); (H.T.A.); (S.O.A.); Tel.: +27-12-808-8000 (M.M.M. & H.T.A. & S.O.A)
| | - Stephen O. Amoo
- Agricultural Research Council—Vegetable, Industrial and Medicinal Plants (ARC-VIMP), Private Bag X293, Pretoria 0001, South Africa
- Department of Botany and Plant Biotechnology, University of Johannesburg, P.O. Box 524, Auckland Park, Johannesburg 2006, South Africa
- Correspondence: (M.M.M.); (H.T.A.); (S.O.A.); Tel.: +27-12-808-8000 (M.M.M. & H.T.A. & S.O.A)
| | - Christian P. du Plooy
- Agricultural Research Council—Vegetable, Industrial and Medicinal Plants (ARC-VIMP), Private Bag X293, Pretoria 0001, South Africa
| | - Phatu W. Mashela
- Green Technologies Research Centre, University of Limpopo, Private Bag X1106, Sovenga 0727, South Africa
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Islam MS, Krom N, Kwon T, Li G, Saha MC. Transcriptome of Endophyte-Positive and Endophyte-Free Tall Fescue Under Field Stresses. FRONTIERS IN PLANT SCIENCE 2022; 13:803400. [PMID: 35774806 PMCID: PMC9237612 DOI: 10.3389/fpls.2022.803400] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 05/05/2022] [Indexed: 06/15/2023]
Abstract
Tall fescue is one of the primary sources of forage for livestock. It grows well in the marginal soils of the temperate zones. It hosts a fungal endophyte (Epichloë coenophiala), which helps the plants to tolerate abiotic and biotic stresses. The genomic and transcriptomic resources of tall fescue are very limited, due to a complex genetic background and outbreeding modes of pollination. The aim of this study was to identify differentially expressed genes (DEGs) in two tissues (pseudostem and leaf blade) between novel endophyte positive (E+) and endophyte-free (E-) Texoma MaxQ II tall fescue genotypes. Samples were collected at three diurnal time points: morning (7:40-9:00 am), afternoon (1:15-2:15 pm), and evening (4:45-5:45 pm) in the field environment. By exploring the transcriptional landscape via RNA-seq, for the first time, we generated 226,054 and 224,376 transcripts from E+ and E- tall fescue, respectively through de novo assembly. The upregulated transcripts were detected fewer than the downregulated ones in both tissues (S: 803 up and 878 down; L: 783 up and 846 down) under the freezing temperatures (-3.0-0.5°C) in the morning. Gene Ontology enrichment analysis identified 3 out of top 10 significant GO terms only in the morning samples. Metabolic pathway and biosynthesis of secondary metabolite genes showed lowest number of DEGs under morning freezing stress and highest number in evening cold condition. The 1,085 DEGs were only expressed under morning stress condition and, more importantly, the eight candidate orthologous genes of rice identified under morning freezing temperatures, including orthologs of rice phytochrome A, phytochrome C, and ethylene receptor genes, might be the possible route underlying cold tolerance in tall fescue.
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Affiliation(s)
- Md. Shofiqul Islam
- Grass Genomics, Noble Research Institute LLC, Ardmore, OK, United States
- Genetics Laboratory, Indiana Crop Improvement Association, Lafayette, IN, United States
| | - Nick Krom
- Scientific Computing, Noble Research Institute LLC, Ardmore, OK, United States
| | - Taegun Kwon
- Genomics Core Facility, Noble Research Institute LLC, Ardmore, OK, United States
- Genomics Center, BioDiscovery Institute, University of North Texas, Denton, TX, United States
| | - Guifen Li
- Genomics Core Facility, Noble Research Institute LLC, Ardmore, OK, United States
| | - Malay C. Saha
- Grass Genomics, Noble Research Institute LLC, Ardmore, OK, United States
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Ahres M, Gierczik K, Boldizsár Á, Vítámvás P, Galiba G. Temperature and Light-Quality-Dependent Regulation of Freezing Tolerance in Barley. PLANTS 2020; 9:plants9010083. [PMID: 31936533 PMCID: PMC7020399 DOI: 10.3390/plants9010083] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 12/31/2019] [Accepted: 01/07/2020] [Indexed: 01/10/2023]
Abstract
It is established that, besides the cold, incident light also has a crucial role in the cold acclimation process. To elucidate the interaction between these two external hardening factors, barley plantlets were grown under different light conditions with low, normal, and high light intensities at 5 and 15 °C. The expression of the HvCBF14 gene and two well-characterized members of the C-repeat binding factor (CBF)-regulon HvCOR14b and HvDHN5 were studied. In general, the expression level of the studied genes was several fold higher at 5 °C than that at 15 °C independently of the applied light intensity or the spectra. The complementary far-red (FR) illumination induced the expression of HvCBF14 and also its target gene HvCOR14b at both temperatures. However, this supplementation did not affect significantly the expression of HvDHN5. To test the physiological effects of these changes in environmental conditions, freezing tests were also performed. In all the cases, we found that the reduced R:FR ratio increased the frost tolerance of barley at every incident light intensity. These results show that the combined effects of cold, light intensity, and the modification of the R:FR light ratio can greatly influence the gene expression pattern of the plants, which can result in increased plant frost tolerance.
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Affiliation(s)
- Mohamed Ahres
- Festetics Doctoral School, Georgikon Faculty, University of Pannonia, 8360 Keszthely, Hungary;
- Agricultural Institute, Centre for Agricultural Research, 2462 Martonvásár, Hungary; (K.G.); (Á.B.)
| | - Krisztián Gierczik
- Agricultural Institute, Centre for Agricultural Research, 2462 Martonvásár, Hungary; (K.G.); (Á.B.)
| | - Ákos Boldizsár
- Agricultural Institute, Centre for Agricultural Research, 2462 Martonvásár, Hungary; (K.G.); (Á.B.)
| | - Pavel Vítámvás
- Department of Genetics and Plant Breeding, Crop Research Institute, 161 06 Prague 6, Czech Republic;
| | - Gábor Galiba
- Festetics Doctoral School, Georgikon Faculty, University of Pannonia, 8360 Keszthely, Hungary;
- Agricultural Institute, Centre for Agricultural Research, 2462 Martonvásár, Hungary; (K.G.); (Á.B.)
- Correspondence: ; Tel.:+36-22-460-523
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Puyaubert J, Baudouin E. New clues for a cold case: nitric oxide response to low temperature. PLANT, CELL & ENVIRONMENT 2014; 37:2623-30. [PMID: 24720833 DOI: 10.1111/pce.12329] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Revised: 03/17/2014] [Accepted: 03/18/2014] [Indexed: 05/18/2023]
Abstract
Low temperature is among the most frequent stresses met by plants during their lifespan, and a plant's ability to cold-acclimate is a determinant for further growth and development. Although intensive research has provided a good picture of the molecular and metabolic changes triggered by cold, the underlying regulatory mechanisms remain elusive and are thus being actively sought. Recent studies have shed light on the importance of nitric oxide (NO), a ubiquitous signalling molecule in eukaryotes, for plant tolerance to chilling and freezing. Indeed, NO formation following cold exposure has been reported in a range of plant species, and a series of proteins targeted by NO-based post-translational modifications have been identified. Moreover, key cold-regulated genes have been characterized as NO-dependent, suggesting the crucial importance of NO signalling for cold-responsive gene expression. This review provides a picture of our current understanding of the function of NO in the context of plant response to cold. Particular attention is dedicated to the open questions left by the fragmented data currently available concerning NO formation, transduction and biological significance for plant adaptation to low temperature.
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Affiliation(s)
- Juliette Puyaubert
- Sorbonne Universités, UPMC Univ Paris 06, UMR 7622, Biologie du Développement, F-75005, Paris, France; CNRS, UMR 7622, Biologie du Développement, F-75005, Paris, France
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Maibam P, Nawkar GM, Park JH, Sahi VP, Lee SY, Kang CH. The influence of light quality, circadian rhythm, and photoperiod on the CBF-mediated freezing tolerance. Int J Mol Sci 2013; 14:11527-43. [PMID: 23722661 PMCID: PMC3709746 DOI: 10.3390/ijms140611527] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2013] [Revised: 05/13/2013] [Accepted: 05/17/2013] [Indexed: 12/03/2022] Open
Abstract
Low temperature adversely affects crop yields by restraining plant growth and productivity. Most temperate plants have the potential to increase their freezing tolerance upon exposure to low but nonfreezing temperatures, a process known as cold acclimation. Various physiological, molecular, and metabolic changes occur during cold acclimation, which suggests that the plant cold stress response is a complex, vital phenomenon that involves more than one pathway. The C-Repeat Binding Factor (CBF) pathway is the most important and well-studied cold regulatory pathway that imparts freezing tolerance to plants. The regulation of freezing tolerance involves the action of phytochromes, which play an important role in light-mediated signalling to activate cold-induced gene expression through the CBF pathway. Under normal temperature conditions, CBF expression is regulated by the circadian clock through the action of a central oscillator and also day length (photoperiod). The phytochrome and phytochrome interacting factor are involved in the repression of the CBF expression under long day (LD) conditions. Apart from the CBF regulon, a novel pathway involving the Z-box element also mediates the cold acclimation response in a light-dependent manner. This review provides insights into the progress of cold acclimation in relation to light quality, circadian regulation, and photoperiodic regulation and also explains the underlying molecular mechanisms of cold acclimation for introducing the engineering of economically important, cold-tolerant plants.
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Affiliation(s)
| | | | | | | | - Sang Yeol Lee
- Authors to whom correspondence should be addressed; E-Mails: (S.Y.L.); (C.H.K.); Tel.: +82-55-772-1351 (S.Y.L.); +82-55-772-2639 (C.H.K.); Fax: +82-55-759-9363 (S.Y.L. & C.H.K.)
| | - Chang Ho Kang
- Authors to whom correspondence should be addressed; E-Mails: (S.Y.L.); (C.H.K.); Tel.: +82-55-772-1351 (S.Y.L.); +82-55-772-2639 (C.H.K.); Fax: +82-55-759-9363 (S.Y.L. & C.H.K.)
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