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Li H, Zhang Y, Lan J, Wang S, Cai H, Meng X, Ren Y, Yang M. Identification of Differentially Expressed lncRNAs in Response to Blue Light and Expression Pattern Analysis of Populus tomentosa Hybrid Poplar 741. PLANTS (BASEL, SWITZERLAND) 2023; 12:3157. [PMID: 37687403 PMCID: PMC10490017 DOI: 10.3390/plants12173157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/25/2023] [Accepted: 08/30/2023] [Indexed: 09/10/2023]
Abstract
Poplar is an important shelterbelt, timber stand, and city tree species that has been the focus of forestry research. The regulatory role of the long non-coding RNA molecule (lncRNA; length > 200 nt) has been a research hotspot in plants. In this study, seedlings of 741 poplar were irradiated with LED blue and white light, and the Illumina HiSeq 2000 sequencing platform was used to identify lncRNAs. |logFC| > 1 and p < 0.05 were considered to indicate differentially expressed lncRNAs, and nine differentially expressed lncRNAs were screened, the target genes of which were predicted, and three functionally annotated target genes were obtained. The differentially expressed lncRNAs were identified as miRNA targets. Six lncRNAs were determined to be target sites for twelve mRNAs in six miRNA families. LncRNAs and their target genes, including lncRNA MSTRG.20413.1-ptc-miR396e-5p-GRF9, were verified using quantitative real-time polymerase chain reaction analysis, and the expression patterns were analyzed. The analysis showed that the ptc-miR396e-5p expression was downregulated, while lncRNA MSTRG.20413.1 and GRF9 expression was upregulated, after blue light exposure. These results indicate that lncRNAs interact with miRNAs to regulate gene expression and affect plant growth and development.
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Affiliation(s)
- Hongyan Li
- Forest Department, Forestry College, Hebei Agricultural University, Baoding 071000, China; (H.L.); (Y.Z.); (S.W.); (H.C.); (X.M.); (Y.R.)
- Hebei Key Laboratory for Tree Genetic Resources and Forest Protection, Baoding 071000, China
| | - Yiwen Zhang
- Forest Department, Forestry College, Hebei Agricultural University, Baoding 071000, China; (H.L.); (Y.Z.); (S.W.); (H.C.); (X.M.); (Y.R.)
- Hebei Key Laboratory for Tree Genetic Resources and Forest Protection, Baoding 071000, China
| | - Jinping Lan
- Life Science Research Center, Hebei North University, Zhangjiakou 075000, China;
| | - Shijie Wang
- Forest Department, Forestry College, Hebei Agricultural University, Baoding 071000, China; (H.L.); (Y.Z.); (S.W.); (H.C.); (X.M.); (Y.R.)
- Hebei Key Laboratory for Tree Genetic Resources and Forest Protection, Baoding 071000, China
| | - Hongyu Cai
- Forest Department, Forestry College, Hebei Agricultural University, Baoding 071000, China; (H.L.); (Y.Z.); (S.W.); (H.C.); (X.M.); (Y.R.)
- Hebei Key Laboratory for Tree Genetic Resources and Forest Protection, Baoding 071000, China
| | - Xin Meng
- Forest Department, Forestry College, Hebei Agricultural University, Baoding 071000, China; (H.L.); (Y.Z.); (S.W.); (H.C.); (X.M.); (Y.R.)
- Hebei Key Laboratory for Tree Genetic Resources and Forest Protection, Baoding 071000, China
| | - Yachao Ren
- Forest Department, Forestry College, Hebei Agricultural University, Baoding 071000, China; (H.L.); (Y.Z.); (S.W.); (H.C.); (X.M.); (Y.R.)
- Hebei Key Laboratory for Tree Genetic Resources and Forest Protection, Baoding 071000, China
| | - Minsheng Yang
- Forest Department, Forestry College, Hebei Agricultural University, Baoding 071000, China; (H.L.); (Y.Z.); (S.W.); (H.C.); (X.M.); (Y.R.)
- Hebei Key Laboratory for Tree Genetic Resources and Forest Protection, Baoding 071000, China
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Cai T, Chen H, Yan L, Zhang C, Deng Y, Wu S, Yang Q, Pan R, Raza A, Chen S, Zhuang W. The root-specific NtR12 promoter-based expression of RIP increased the resistance against bacterial wilt disease in tobacco. Mol Biol Rep 2022; 49:11503-11514. [PMID: 36097128 DOI: 10.1007/s11033-022-07817-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 07/21/2022] [Indexed: 10/14/2022]
Abstract
BACKGROUND Tobacco is an important economic crop, but the quality and yield have been severely impaired by bacterial wilt disease (BWD) caused by Ralstonia solanacearum. METHODS AND RESULTS Here, we describe a transgenic approach to prevent BWD in tobacco plants. A new root-specific promoter of an NtR12 gene was successfully cloned. The NtR12 promoter drove GUS reporter gene expression to a high level in roots but to less extent in stems, and no significant expression was detected in leaves. The Ribosome-inactivating proteins (RIP) gene from Momordica charantia was also cloned, and its ability to inhibit Ralstonia solanacearum was evaluated using RIP protein produced by the prokaryotic expression system. The RIP gene was constructed downstream of the NtR12 promoter and transformed into the tobacco cultivar "Cuibi No. 1" (CB-1), resulting in many descendants. The resistance against BWD was significantly improved in transgenic tobacco lines expressing NtR12::RIP. CONCLUSION This study confirms that the RIP gene confers resistance to BWD and the NtR12 as a new promoter for its specific expression in root and stem. Our findings pave a novel avenue for transgenic engineering to prevent the harmful impact of diseases and pests in roots and stems.
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Affiliation(s)
- Tiecheng Cai
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Center of Legume Crop Genetics and Systems Biology/College of Agriculture, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, 350002, China.,State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Hua Chen
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Center of Legume Crop Genetics and Systems Biology/College of Agriculture, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, 350002, China.,State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Liming Yan
- School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Chong Zhang
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Center of Legume Crop Genetics and Systems Biology/College of Agriculture, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, 350002, China.,State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Ye Deng
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Center of Legume Crop Genetics and Systems Biology/College of Agriculture, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, 350002, China.,State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Shengxin Wu
- Fujian Province Bureau of Tobacco, Tobacco Agriculture and Scientific Research Institute, Fuzhou, 350001, Fujian, China
| | - Qiang Yang
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Center of Legume Crop Genetics and Systems Biology/College of Agriculture, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, 350002, China.,State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Ronglong Pan
- Department of Life Science and Institute of Bioinformatics and Structural Biology, College of Life Science, National Tsing Hua University, Hsin Chu, 30013, Taiwan
| | - Ali Raza
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Center of Legume Crop Genetics and Systems Biology/College of Agriculture, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, 350002, China
| | - Shunhui Chen
- Fujian Province Bureau of Tobacco, Tobacco Agriculture and Scientific Research Institute, Fuzhou, 350001, Fujian, China.
| | - Weijian Zhuang
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Center of Legume Crop Genetics and Systems Biology/College of Agriculture, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, 350002, China. .,State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
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Oh S, Kong Q, Montgomery BL. Guard-cell phytochromes impact seedling photomorphogenesis and rosette leaf morphology. MICROPUBLICATION BIOLOGY 2022; 2022. [PMID: 35128344 PMCID: PMC8808294 DOI: 10.17912/micropub.biology.000521] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 01/17/2022] [Accepted: 01/24/2022] [Indexed: 11/06/2022]
Abstract
Using a previously established transgenic approach to inactivate phytochrome chromophore synthesis in specific organs or tissues, we used a guard cell-specific promoter to induce phytochrome deficiencies in guard cells of Arabidopsis thaliana. Analyses of multiple homozygous lines depleted of phytochromes in stomatal guard cells indicated elongated hypocotyls specifically in red and far-red growth conditions. Furthermore, rosette leaves of adult plants with guard cell-specific phytochrome deficiencies showed enhanced serration compared to the wild-type Col-0 parent. Thus, we demonstrate that guard cell-localized phytochromes impact the inhibition of hypocotyl elongation, as well as leaf margin morphology of adult rosette leaves in A. thaliana.
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Affiliation(s)
- Sookyung Oh
- DOE-Plant Research Laboratory, Michigan State University, East Lansing, MI 48824, USA
| | - Que Kong
- DOE-Plant Research Laboratory, Michigan State University, East Lansing, MI 48824, USA
| | - Beronda L Montgomery
- DOE-Plant Research Laboratory, Michigan State University, East Lansing, MI 48824, USA.,Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI 48824, USA.,Department of Microbiology & Molecular Genetics, Michigan State University, East Lansing, MI 48824, USA
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Comparative analysis of two phytochrome mutants of tomato (Micro-Tom cv.) reveals specific physiological, biochemical, and molecular responses under chilling stress. J Genet Eng Biotechnol 2020; 18:77. [PMID: 33245438 PMCID: PMC7695757 DOI: 10.1186/s43141-020-00091-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 11/03/2020] [Indexed: 02/08/2023]
Abstract
Background Phytochromes are plant photoreceptors that have long been associated with photomorphogenesis in plants; however, more recently, their crucial role in the regulation of variety of abiotic stresses has been explored. Chilling stress is one of the abiotic factors that severely affect growth, development, and productivity of crops. In the present work, we have analyzed and compared physiological, biochemical, and molecular responses in two contrasting phytochrome mutants of tomato, namely aurea (aur) and high pigment1 (hp1), along with wild-type cultivar Micro-Tom (MT) under chilling stress. In tomato, aur is phytochrome-deficient mutant while hp1 is a phytochrome-sensitive mutant. The genotype-specific physiological, biochemical, and molecular responses under chilling stress in tomato mutants strongly validated phytochrome-mediated regulation of abiotic stress. Results Here, we demonstrate that phytochrome-sensitive mutant hp1 show improved performance compared to phytochrome-deficient mutant aur and wild-type MT plants under chilling stress. Interestingly, we noticed significant increase in several photosynthetic-related parameters in hp1 under chilling stress that include photosynthetic rate, stomatal conductance, stomatal aperture, transpiration rate, chlorophyll a and carotenoids. Whereas most parameters were negatively affected in aur and MT except a slight increase in carotenoids in MT plants under chilling stress. Further, we found that PSII quantum efficiency (Fv/Fm), PSII operating efficiency (Fq′/Fm′), and non-photochemical quenching (NPQ) were all positively regulated in hp1, which demonstrate enhanced photosynthetic performance of hp1 under stress. On the other hand, Fv/Fm and Fq′/Fm′ were decreased significantly in aur and wild-type plants. In addition, NPQ was not affected in MT but declined in aur mutant after chilling stress. Noticeably, the transcript analysis show that PHY genes which were previously reported to act as molecular switches in response to several abiotic stresses were mainly induced in hp1 and repressed in aur and MT in response to stress. As expected, we also found reduced levels of malondialdehyde (MDA), enhanced activities of antioxidant enzymes, and higher accumulation of protecting osmolytes (soluble sugars, proline, glycine betaine) which further elaborate the underlying tolerance mechanism of hp1 genotype under chilling stress. Conclusion Our findings clearly demonstrate that phytochrome-sensitive and phytochrome-deficient tomato mutants respond differently under chilling stress thereby regulating physiological, biochemical, and molecular responses and thus establish a strong link between phytochromes and their role in stress tolerance. Supplementary Information The online version contains supplementary material available at 10.1186/s43141-020-00091-1.
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Zeng M, He S, Hao L, Li Y, Zheng C, Zhao Y. Conjoint Analysis of Genome-Wide lncRNA and mRNA Expression of Heteromorphic Leavesin Response to Environmental Heterogeneityin Populus euphratica. Int J Mol Sci 2019; 20:E5148. [PMID: 31627402 PMCID: PMC6829562 DOI: 10.3390/ijms20205148] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 10/12/2019] [Accepted: 10/16/2019] [Indexed: 12/31/2022] Open
Abstract
Heterophylly is the phenomenon of leaf forms varying along the longitudinal axis within a single plant. Populus euphratica, a heterophyllous woody plant, develops lanceolate leaves and dentate broad-ovate leaves on the bottom and top of the canopy, respectively, which are faced with different intensities of ambient solar radiation. However, the mechanism of the heteromorphic leaf response to the microenvironment in P. euphratica remains elusive. Here, we show that the dentate broad-ovate leaves have advantages in tolerating high light intensity, while lanceolate leaves are excellent at capturing light. Compared with lanceolate leaves, more trichomes, higher stomatal density, thicker lamina, and higher specific leaf weight were observed in dentate broad-ovate leaves. Furthermore, high-throughput RNA sequencing analysis revealed that the expression patterns of genes and long noncoding RNAs (lncRNAs) are different between the two heteromorphic leaves. A total of 36,492 genes and 1725 lncRNAs were detected, among which 586 genes and 54 lncRNAs were differentially expressed. Based on targets prediction, lncRNAs and target genes involved in light adaption, protein repair, stress response, and growth and development pathways were differentially expressed in heteromorphic leaves, 10 pairs of which were confirmed by quantitative real-time PCR. Additionally, the analysis of interactions indicated that lncRNA-mRNA interactions were involved in the response to the microenvironment of heteromorphic leaves. Taken together, these results suggest that the morphological features and joint regulation of lncRNA-mRNA in heteromorphic leaves may serve as survival strategies for P. euphratica, which could lead to optimal utilization of environmental factors.
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Affiliation(s)
- Ming Zeng
- College of Biological Sciences and Technology, Beijing Forestry University, No. 35 Qing Hua Dong Lu, Beijing 100083, China.
| | - Shuhang He
- College of Biological Sciences and Technology, Beijing Forestry University, No. 35 Qing Hua Dong Lu, Beijing 100083, China.
| | - Lin Hao
- College of Biological Sciences and Technology, Beijing Forestry University, No. 35 Qing Hua Dong Lu, Beijing 100083, China.
| | - Yujie Li
- College of Biological Sciences and Technology, Beijing Forestry University, No. 35 Qing Hua Dong Lu, Beijing 100083, China.
| | - Caixia Zheng
- College of Biological Sciences and Technology, Beijing Forestry University, No. 35 Qing Hua Dong Lu, Beijing 100083, China.
| | - Yuanyuan Zhao
- College of Biological Sciences and Technology, Beijing Forestry University, No. 35 Qing Hua Dong Lu, Beijing 100083, China.
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Lee JW, Kim GH. Red And far-red regulation of filament movement correlates with the expression of phytochrome and FHY1 genes in Spirogyra varians (Zygnematales, Streptophyta) 1. JOURNAL OF PHYCOLOGY 2019; 55:688-699. [PMID: 30805922 DOI: 10.1111/jpy.12849] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 02/05/2019] [Indexed: 06/09/2023]
Abstract
Spirogyra filaments show unique photomovement that differs in response to blue, red, and far-red light. Phototropins involved in the blue-light movement have been characterized together with downstream signaling components, but the photoreceptors and mechanical effectors of red- and far-red light movement are not yet characterized. The filaments of Spirogyra varians slowly bent and aggregated to form a tangled mass in red light. In far-red light, the filaments unbent, stretched rapidly, and separated from each other. Mannitol and/or sorbitol treatment significantly inhibited this far-red light movement suggesting that turgor pressure is the driving force of this movement. The bending and aggregating movements of filaments in red light were not affected by osmotic change. Three phytochrome homologues isolated from S. varians showed unique phylogenetic characteristics. Two canonical phytochromes, named SvPHY1 and SvPHY2, and a noncanonical phytochrome named SvPHYX2. SvPHY1 is the first PHY1 family phytochrome reported in zygnematalean algae. The gene involved in the transport of phytochromes into the nucleus was characterized, and its expression in response to red and far-red light was measured using quantitative PCR. Our results suggest that the phytochromes and the genes involved in the transport system into the nucleus are well conserved in S. varians.
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Affiliation(s)
- Ji Woong Lee
- Department of Biological Sciences, Kongju National University, Gongju, 32588, Korea
| | - Gwang Hoon Kim
- Department of Biological Sciences, Kongju National University, Gongju, 32588, Korea
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Ferradás Y, Martínez Ó, Rey M, González MV. Identification and expression analysis of photoreceptor genes in kiwifruit leaves under natural daylength conditions and their relationship with other genes that regulate photoperiodic flowering. JOURNAL OF PLANT PHYSIOLOGY 2017; 213:108-121. [PMID: 28363189 DOI: 10.1016/j.jplph.2017.03.007] [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: 11/24/2016] [Revised: 01/17/2017] [Accepted: 03/13/2017] [Indexed: 06/07/2023]
Abstract
Kiwifruit (Actinidia chinensis var. deliciosa (A. Chev) A. Chev.) is a dioecious vine highly dependent on pollination, which is limited by a lack of synchrony of flowering time between male and female plants. In many plant species, the regulation of the timing of flowering depends largely on seasonal cues such as photoperiod, which is detected by photoreceptors. In this report, we determined the full sequences of the PHYB (AcPHYB) and PHYA (AcPHYA) genes and a partial sequence of the CRY2 (AcCRY2) gene in kiwifruit. Next, we monitored the expression patterns of these photoreceptor genes (AcPHYA, AcPHYB and AcCRY2) as well as other genes involved in flowering regulation (AcCO-like and AcFT) in the leaves of kiwifruit plants grown under natural photoperiods in the field. The annual expression patterns of AcPHYB, AcPHYA and AcCRY2 genes showed that they were significantly highly expressed from late flower development until full bloom and fitting with floral evocation, closely matching the peaks of expression detected for the AcFT and AcCO-like genes. In addition, the daily expression patterns of AcPHYB, AcPHYA and AcCRY2 were analyzed in leaves collected under different daylength conditions. Under long-day (LD) conditions, maximum expression levels were detected in the middle of the day in April (before full bloom), while their expression lost their daily rhythmic patterns in June (after full bloom) and were consistently expressed at low levels. Under short-day (SD) conditions, AcPHYB, AcPHYA and AcCRY2 gene expression patterns were the opposite of those observed in April. With respect to AcFT, no expression was detected in SD conditions. In contrast, the AcCO-like gene oscillated for all daylength conditions with the same daily rhythm. Our results seem to indicate the involvement of photoreceptor genes in kiwifruit flowering regulation. The different daily expression patterns detected for AcPHYA, AcPHYB, AcCRY2 and AcFT under different daylength conditions suggest that photoperiod regulates their expression, while the uniform expression of the AcCO-like gene is in agreement with its reported regulation by the circadian clock.
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Affiliation(s)
- Yolanda Ferradás
- Departamento de Biología Funcional, Facultad de Farmacia, Universidad de Santiago, Campus Sur, 15872 Santiago de Compostela, Spain
| | - Óscar Martínez
- Departamento de Biología Vegetal y Ciencia del Suelo, Facultad de Biología, Universidad de Vigo, 36310 Vigo, Spain
| | - Manuel Rey
- Departamento de Biología Vegetal y Ciencia del Suelo, Facultad de Biología, Universidad de Vigo, 36310 Vigo, Spain
| | - M Victoria González
- Departamento de Biología Funcional, Facultad de Farmacia, Universidad de Santiago, Campus Sur, 15872 Santiago de Compostela, Spain.
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Novák A, Boldizsár Á, Gierczik K, Vágújfalvi A, Ádám É, Kozma-Bognár L, Galiba G. Light and Temperature Signalling at the Level of CBF14 Gene Expression in Wheat and Barley. PLANT MOLECULAR BIOLOGY REPORTER 2017; 35:399-408. [PMID: 28751800 PMCID: PMC5504222 DOI: 10.1007/s11105-017-1035-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The wheat and barley CBF14 genes have been newly defined as key components of the light quality-dependent regulation of the freezing tolerance by the integration of phytochrome-mediated light and temperature signals. To further investigate the wavelength dependence of light-induced CBF14 expression in cereals, we carried out a detailed study using monochromatic light treatments at an inductive and a non-inductive temperature. Transcript levels of CBF14 gene in winter wheat Cheyenne, winter einkorn G3116 and winter barley Nure genotypes were monitored. We demonstrated that (1) CBF14 is most effectively induced by blue light and (2) provide evidence that this induction does not arise from light-controlled CRY gene expression. (3) We demonstrate that temperature shifts induce CBF14 transcription independent of the light conditions and that (4) the effect of temperature and light treatments are additive. Based on these data, it can be assumed that temperature and light signals are relayed to the level of CBF14 expression via separate signalling routes.
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Affiliation(s)
- Aliz Novák
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Martonvásár, Hungary
- Festetics Doctoral School, Georgikon Faculty, University of Pannonia, Keszthely, Hungary
| | - Ákos Boldizsár
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Martonvásár, Hungary
| | - Krisztián Gierczik
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Martonvásár, Hungary
- Festetics Doctoral School, Georgikon Faculty, University of Pannonia, Keszthely, Hungary
| | - Attila Vágújfalvi
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Martonvásár, Hungary
| | - Éva Ádám
- Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
| | - László Kozma-Bognár
- Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
- Department of Genetics, Faculty of Sciences and Informatics, University of Szeged, Szeged, Hungary
| | - Gábor Galiba
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Martonvásár, Hungary
- Festetics Doctoral School, Georgikon Faculty, University of Pannonia, Keszthely, Hungary
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Novák A, Boldizsár Á, Ádám É, Kozma-Bognár L, Majláth I, Båga M, Tóth B, Chibbar R, Galiba G. Light-quality and temperature-dependent CBF14 gene expression modulates freezing tolerance in cereals. JOURNAL OF EXPERIMENTAL BOTANY 2016; 67:1285-95. [PMID: 26712822 DOI: 10.1093/jxb/erv526] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
UNLABELLED C-repeat binding factor 14 (CBF14) is a plant transcription factor that regulates a set of cold-induced genes, contributing to enhanced frost tolerance during cold acclimation. Many CBF genes are induced by cool temperatures and regulated by day length and light quality, which affect the amount of accumulated freezing tolerance. Here we show that a low red to far-red ratio in white light enhances CBF14 expression and increases frost tolerance at 15°C in winter Triticum aesitivum and Hordeum vulgare genotypes, but not in T. monococcum (einkorn), which has a relatively low freezing tolerance. Low red to far-red ratio enhances the expression of PHYA in all three species, but induces PHYB expression only in einkorn. Based on our results, a model is proposed to illustrate the supposed positive effect of phytochrome A and the negative influence of phytochrome B on the enhancement of freezing tolerance in cereals in response to spectral changes of incident light. KEY WORDS CBF-regulon, barley, cereals, cold acclimation, freezing tolerance, light regulation, low red/far-red ratio, phytochrome, wheat.
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Affiliation(s)
- Aliz Novák
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, 2462 Martonvásár, Hungary Doctoral School of Molecular- and Nanotechnologies, Research Institute of Chemical and Process Engineering, Faculty of Information Technology, University of Pannonia, 8200 Veszprém, Hungary
| | - Ákos Boldizsár
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, 2462 Martonvásár, Hungary
| | - Éva Ádám
- Biological Research Centre, Hungarian Academy of Sciences, 6726 Szeged, Hungary
| | - László Kozma-Bognár
- Biological Research Centre, Hungarian Academy of Sciences, 6726 Szeged, Hungary
| | - Imre Majláth
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, 2462 Martonvásár, Hungary
| | - Monica Båga
- Department of Plant Sciences, University of Saskatchewan, S7N 5A8 Saskatoon, Saskatchewan, Canada
| | - Balázs Tóth
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, 2462 Martonvásár, Hungary Doctoral School of Molecular- and Nanotechnologies, Research Institute of Chemical and Process Engineering, Faculty of Information Technology, University of Pannonia, 8200 Veszprém, Hungary
| | - Ravindra Chibbar
- Department of Plant Sciences, University of Saskatchewan, S7N 5A8 Saskatoon, Saskatchewan, Canada
| | - Gábor Galiba
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, 2462 Martonvásár, Hungary Festetics Doctoral School, Department of Meteorology and Water Management, Georgikon Faculty, University of Pannonia, 8360 Keszthely, Hungary
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10
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Montgomery BL. Spatiotemporal Phytochrome Signaling during Photomorphogenesis: From Physiology to Molecular Mechanisms and Back. FRONTIERS IN PLANT SCIENCE 2016; 7:480. [PMID: 27148307 PMCID: PMC4826876 DOI: 10.3389/fpls.2016.00480] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Accepted: 03/24/2016] [Indexed: 05/21/2023]
Abstract
Light exposure results in distinct responses in specific seedling tissues during photomorphogenesis. Light promotes growth of cotyledons and leaves, as well as development and elongation of roots, whereas light inhibits elongation of hypocotyls. For distinct plant responses such as shade avoidance, far-red light or shifts in spectral light quality similarly have disparate impacts on distinct plant tissues, resulting in elongation of stems or petioles and a reduction in growth of leaf blades for many species. The physiological bases of such tissue- and organ-specific light responses were initially studied using localized irradiation of specific tissues and organs, or irradiation of dissected plant parts. These historical approaches were used to identify spatial-specific pools of photoreceptors responsible for regulating local, i.e., tissue- or organ-specific, or distal, i.e., interorgan, plant responses. The red/far-red responsive phytochromes have been the most widely studied among photoreceptors in this regard. Whereas, the spatial localization of photoreceptors regulating many tissue- or organ-specific light responses were identified, the underlying signaling networks responsible for mediating the observed responses have not been well defined. Recent approaches used to investigate the molecular bases of spatiotemporal light responses include selective irradiation of plants harboring mutations in specific photoreceptors, tissue-specific expression of photoreceptors, primarily in photoreceptor mutant backgrounds, or tissue-specific biochemical ablation of photoreceptor accumulation. Progressive integration of such approaches for regulating the availability of localized pools of phytochromes with the use of transcriptomic or proteomic analyses for assessing the genes or proteins which these spatially discrete pools of phytochrome regulate is yielding emergent insight into the molecular bases of spatiotemporal phytochrome signaling pathways responsible for regulating spatiotemporal light responses of which we have been aware of at the physiological level for decades. Here, I discuss historical and emerging approaches to elucidating spatiotemporal signaling mediated by phytochromes during photomorphogenesis.
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Affiliation(s)
- Beronda L. Montgomery
- Department of Energy — Plant Research Laboratory, Michigan State UniversityEast Lansing, MI, USA
- Department of Biochemistry and Molecular Biology, Michigan State UniversityEast Lansing, MI, USA
- *Correspondence: Beronda L. Montgomery,
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Nagy F, Davis SJ. Deconvoluting the interactions of phytochrome isoforms in regulating growth and development. PLANT, CELL & ENVIRONMENT 2014; 37:2649-2651. [PMID: 24995407 DOI: 10.1111/pce.12400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2014] [Accepted: 06/28/2014] [Indexed: 06/03/2023]
Affiliation(s)
- Ferenc Nagy
- Biological Research Centre, Hungarian Academy of Sciences, Szeged, H-6726, Hungary; School of Biological Sciences, University of Edinburgh, Edinburgh, EH9 3JR, UK
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