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Fu Y, Xu H, Bao Y, Wang J, Liu X, Huang Q. Unveiling the hidden potential: Above-ground parts of Paris yunnanensis Franch. Is promise as an anti-acne therapeutic beyond traditional medicinal sites. Fitoterapia 2024; 178:106179. [PMID: 39128555 DOI: 10.1016/j.fitote.2024.106179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Revised: 07/17/2024] [Accepted: 08/08/2024] [Indexed: 08/13/2024]
Abstract
The dried rhizomes of Paris yunnanensis Franch. have been extensively utilized in traditional Chinese medicine as hemostatic, antitumor, and antimicrobial agents. An examination of classical texts and renowned Chinese medical formulations showcased its efficacy in acne treatment. Presently, there is a significant scarcity of Paris resources. Consider directing attention towards the non-medicinal parts of Paris to mitigate the strain on medicinal resources within this realm. To address these resource limitations, this study investigated the bioactivity and pharmacodynamics of the above-ground parts of Paris (AGPP). A synergistic approach integrating network pharmacology, molecular docking (in silico validation), and animal experimentation (in vivo validation) was employed to elucidate the potential mechanisms underlying the efficacy of AGPP against acne vulgaris in this study. The active constituents in AGPP extracts were identified via UHPLC-Q-Orbitrap HRMS analysis, with their targets extracted for network pharmacological analysis. KEGG pathway analysis unveiled potential therapeutic mechanisms, validated through molecular docking and rat auricular acne model experiments. Comprehensive chemical characterization revealed fifty constituents, including steroidal saponins, flavonoids, amino acids, organic acids, phytohormones, phenolic acids, and alkaloids. Diosgenin, Quercetin, Kaempferol, Ecdysone, and α-linolenic acid were identified as main constituents with acne-treating potential. Core targets included SRC, MAPK3, and MAPK1, with key signaling pathways implicated. Histologically, AGPP mitigated acne-induced follicular dilatation and inflammation, inhibiting inflammatory cytokine production (IL-6, IL-1β, TNF-α). This study offers insight into AGPP's mechanism for acne treatment, laying groundwork for Paris development and drug discovery.
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Affiliation(s)
- Yue Fu
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, No.1166, Liutai Avenue, Wenjiang District, Chengdu, Sichuan, China
| | - Huiyuan Xu
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, No.1166, Liutai Avenue, Wenjiang District, Chengdu, Sichuan, China
| | - Yuchen Bao
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, No.1166, Liutai Avenue, Wenjiang District, Chengdu, Sichuan, China
| | - Jin Wang
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, No.1166, Liutai Avenue, Wenjiang District, Chengdu, Sichuan, China
| | - Xianwu Liu
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, No.1166, Liutai Avenue, Wenjiang District, Chengdu, Sichuan, China.
| | - Qinwan Huang
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, No.1166, Liutai Avenue, Wenjiang District, Chengdu, Sichuan, China.
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Wang H, Xu T, Li Y, Gao R, Tao X, Song J, Li C, Li Q. Comparative transcriptome analysis reveals the potential mechanism of GA 3-induced dormancy release in Suaeda glauca black seeds. FRONTIERS IN PLANT SCIENCE 2024; 15:1354141. [PMID: 38919815 PMCID: PMC11197467 DOI: 10.3389/fpls.2024.1354141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 05/22/2024] [Indexed: 06/27/2024]
Abstract
Suaeda glauca Bunge produces dimorphic seeds on the same plant, with brown seeds displaying non-dormant characteristics and black seeds exhibiting intermediate physiological dormancy traits. Previous studies have shown that black seeds have a very low germination rate under natural conditions, but exogenous GA3 effectively enhanced the germination rate of black seeds. However, the physiological and molecular mechanisms underlying the effects of GA3 on S. glauca black seeds are still unclear. In this study, transcriptomic profiles of seeds at different germination stages with and without GA3 treatment were analyzed and compared, and the TTF, H2O2, O2 -, starch, and soluble sugar contents of the corresponding seed samples were determined. The results indicated that exogenous GA3 treatment significantly increased seed vigor, H2O2, and O2 - contents but decreased starch and soluble sugar contents of S. glauca black seeds during seed dormancy release. RNA-seq results showed that a total of 1136 DEGs were identified in three comparison groups and were involved mainly in plant hormone signal transduction, diterpenoid biosynthesis, flavonoid biosynthesis, phenylpropanoid biosynthesis, and carbohydrate metabolism pathway. Among them, the DEGs related to diterpenoid biosynthesis (SgGA3ox1, SgKAO and SgGA2ox8) and ABA signal transduction (SgPP2Cs) could play important roles during seed dormancy release. Most genes involved in phenylpropanoid biosynthesis were activated under GA3 treatment conditions, especially many SgPER genes encoding peroxidase. In addition, exogenous GA3 treatment also significantly enhanced the expression of genes involved in flavonoid synthesis, which might be beneficial to seed dormancy release. In accordance with the decline in starch and soluble sugar contents, 15 genes involved in carbohydrate metabolism were significantly up-regulated during GA3-induced dormancy release, such as SgBAM, SgHXK2, and SgAGLU, etc. In a word, exogenous GA3 effectively increased the germination rate and seed vigor of S. glauca black seeds by mediating the metabolic process or signal transduction of plant hormones, phenylpropanoid and flavonoid biosynthesis, and carbohydrate metabolism processes. Our results provide novel insights into the transcriptional regulation mechanism of exogenous GA3 on the dormancy release of S. glauca black seeds. The candidate genes identified in this study may be further studied and used to enrich our knowledge of seed dormancy and germination.
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Affiliation(s)
- Hongfei Wang
- The Key Laboratory of Plant Biotechnology of Liaoning Province, School of Life Science, Liaoning Normal University, Dalian, China
| | - Tianjiao Xu
- The Key Laboratory of Plant Biotechnology of Liaoning Province, School of Life Science, Liaoning Normal University, Dalian, China
| | - Yongjia Li
- The Key Laboratory of Plant Biotechnology of Liaoning Province, School of Life Science, Liaoning Normal University, Dalian, China
| | - Rui Gao
- Dandong Forestry and Grassland Development Service Center, Dandong, China
| | - Xuelin Tao
- The Key Laboratory of Plant Biotechnology of Liaoning Province, School of Life Science, Liaoning Normal University, Dalian, China
| | - Jieqiong Song
- The Key Laboratory of Plant Biotechnology of Liaoning Province, School of Life Science, Liaoning Normal University, Dalian, China
| | - Changping Li
- The Key Laboratory of Plant Biotechnology of Liaoning Province, School of Life Science, Liaoning Normal University, Dalian, China
| | - Qiuli Li
- The Key Laboratory of Plant Biotechnology of Liaoning Province, School of Life Science, Liaoning Normal University, Dalian, China
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Zheng G, Li W, Zhang S, Mi Q, Luo W, Zhao Y, Qin X, Li W, Pu S, Xu F. Multiomics strategies for decoding seed dormancy breakdown in Paris polyphylla. BMC PLANT BIOLOGY 2023; 23:247. [PMID: 37170087 PMCID: PMC10173654 DOI: 10.1186/s12870-023-04262-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 05/03/2023] [Indexed: 05/13/2023]
Abstract
BACKGROUND The disruption of seed dormancy is a complicated process and is controlled by various factors. Among these factors, membrane lipids and plant hormones are two of the most important ones. Paris polyphylla is an important Chinese herbaceous species, and the dormancy trait of its seed limits the cultivation of this herb. RESULTS In this study, we investigate the global metabolic and transcriptomic profiles of Paris polyphylla during seed dormancy breaking. Widely targeted metabolomics revealed that lysophospholipids (lysoPLs) increased during P. polyphylla seed dormancy breaking. The expression of phospholipase A2 (PLA2), genes correlated to the production of lysoPLs, up-regulated significantly during this process. Abscisic acid (ABA) decreased dramatically during seed dormancy breaking of P. polyphylla. Changes of different GAs varied during P. polyphylla seeds dormancy breaking, 13-OH GAs, such as GA53 were not detected, and GA3 decreased significantly, whereas 13-H GAs, such as GA15, GA24 and GA4 increased. The expression of CYP707As was not synchronous with the change of ABA content, and the expression of most UGTs, GA20ox and GA3ox up-regulated during seed dormancy breaking. CONCLUSIONS These results suggest that PLA2 mediated production of lysoPLs may correlate to the seed dormancy breaking of P. polyphylla. The conversion of ABA to ABA-GE catalysed by UGTs may be the main cause of ABA degradation. Through inhibition the expression of genes related to the synthesis of 13-OH GAs and up-regulation genes related to the synthesis of 13-H GAs, P. polyphylla synthesized more bioactive 13-H GA (GA4) to break its seed dormancy.
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Affiliation(s)
- Guowei Zheng
- College of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650500, China
| | - Wenchun Li
- College of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650500, China
| | - Shunzhen Zhang
- College of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650500, China
| | - Qi Mi
- College of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650500, China
| | - Wenxiu Luo
- College of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650500, China
| | - Yanli Zhao
- College of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650500, China
| | - Xiangshi Qin
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Weijiao Li
- College of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650500, China.
| | - Shibiao Pu
- College of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650500, China.
| | - Furong Xu
- College of Ethnic Medicines, Yunnan University of Chinese Medicine, Kunming, 650500, China.
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Pan C, Yao L, Yu L, Qiao Z, Tang M, Wei F, Huang X, Zhou Y. Transcriptome and proteome analyses reveal the potential mechanism of seed dormancy release in Amomum tsaoko during warm stratification. BMC Genomics 2023; 24:99. [PMID: 36864423 PMCID: PMC9983222 DOI: 10.1186/s12864-023-09202-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Accepted: 02/21/2023] [Indexed: 03/04/2023] Open
Abstract
BACKGROUND In Amomum tsaoko breeding, the low germination rate is the major limitation for their large-scale reproduction. We found that warm stratification was an effective treatment to break the seed dormancy of A. tsaoko prior to sowing and could be an important component of improving breeding programs. The mechanism of seed dormancy release during warm stratification remains unclear. Therefore, we studied the differences between transcripts and proteomes at 0, 30, 60, and 90 days of warm stratification, to identify some regulatory genes and functional proteins that may cause seed dormancy release in A. tsaoko and reveal their regulatory mechanism. RESULTS RNA-seq was performed for the seed dormancy release process, and the number of differentially expressed genes (DEGs) was 3196 in three dormancy release periods. Using TMT-labelling quantitative proteome analysis, a total of 1414 proteins were defined as differentially expressed proteins (DEPs). Functional enrichment analyses revealed that the DEGs and DEPs were mainly involved in signal transduction pathways (MAPK signaling, hormone) and metabolism processes (cell wall, storage and energy reserves), suggesting that these differentially expressed genes and proteins are somehow involved in response to seed dormancy release process, including MAPK, PYR/PYL, PP2C, GID1, GH3, ARF, AUX/IAA, TPS, SPS, and SS. In addition, transcription factors ARF, bHLH, bZIP, MYB, SBP, and WRKY showed differential expression during the warm stratification stage, which may relate to dormancy release. Noteworthy, XTH, EXP, HSP and ASPG proteins may be involved in a complex network to regulate cell division and differentiation, chilling response and the seed germination status in A. tsaoko seed during warm stratification. CONCLUSION Our transcriptomic and proteomic analysis highlighted specific genes and proteins that warrant further study in fully grasping the precise molecular mechanisms that control the seed dormancy and germination of A. tsaoko. A hypothetical model of the genetic regulatory network provides a theoretical basis for overcoming the physiological dormancy in A. tsaoko in the future.
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Affiliation(s)
- Chunliu Pan
- Guangxi TCM Resources General Survey and Data Collection Key Laboratory, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
| | - Lixiang Yao
- Guangxi TCM Resources General Survey and Data Collection Key Laboratory, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
| | - Liying Yu
- Guangxi TCM Resources General Survey and Data Collection Key Laboratory, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
| | - Zhu Qiao
- Guangxi Medicinal Resources Conservation and Genetic Improvement Key Laboratory, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
| | - Meiqiong Tang
- Guangxi Medicinal Resources Conservation and Genetic Improvement Key Laboratory, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
| | - Fan Wei
- Guangxi Medicinal Resources Conservation and Genetic Improvement Key Laboratory, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
| | - Xueyan Huang
- Guangxi TCM Resources General Survey and Data Collection Key Laboratory, Guangxi Botanical Garden of Medicinal Plants, Nanning, China.
| | - Yunyi Zhou
- Guangxi TCM Resources General Survey and Data Collection Key Laboratory, Guangxi Botanical Garden of Medicinal Plants, Nanning, China.
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Yang B, Sun S, Li S, Zeng J, Xu F. RNA-seq study reveals the signaling and carbohydrate metabolism regulators involved in dormancy release by warm stratification in Paris polyphylla var. yunnanensis. PLANT BIOTECHNOLOGY (TOKYO, JAPAN) 2022; 39:355-365. [PMID: 37283615 PMCID: PMC10240920 DOI: 10.5511/plantbiotechnology.22.0824a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 08/24/2022] [Indexed: 06/08/2023]
Abstract
Long-term seed dormancy of Paris polyphylla var. yunnanensis limits its large-scale artificial cultivation. It is crucial to understand the regulatory genes involving in dormancy release for artificial cultivation in this species. In this study, seed dormancy of Paris polyphylla var. yunnanensis was effectively released by warm stratification (20°C) for 90 days. The freshly harvested seeds (dormant) and stratified seeds (non-dormant) were used to sequence, and approximately 147 million clean reads and 28,083 annotated unigenes were detected. In which, a total of 10,937 differentially expressed genes (DEGs) were identified between dormant and non-dormant seeds. Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) classification revealed that the majority unigenes involved in signaling transduction and carbohydrate metabolism. Of them, the signaling transduction-related DEGs were mainly hormones-, reactive oxygen species (ROS)-, and transcription factor (TF)-related genes. The largest number of signaling transduction-related DEGs were auxin-responsive genes (SAUR, AUX/IAA, and ARF) and AP2-like ethylene-responsive transcription factor (ERF/AP2). Moreover, at least 29 DEGs such as α-amylase (AMY), β-glucosidase (Bglb/Bglu/Bglx), and endoglucanase (Glu) were identified involving in carbohydrate metabolism. These identified genes provide a valuable resource to investigate the molecular basis of dormancy release in Paris polyphylla var. yunnanensis.
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Affiliation(s)
- Bin Yang
- Guangzhou Key Laboratory for Research and Development of Crop Germplasm Resources, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Shan Sun
- The Laboratory of Seed Science and Technology, Guangdong Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou 510642, China
| | - Shengyu Li
- Guangzhou Key Laboratory for Research and Development of Crop Germplasm Resources, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Jiali Zeng
- Guangzhou Key Laboratory for Research and Development of Crop Germplasm Resources, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Furong Xu
- College of Traditional Chinese Medicine, Yunnan University of Chinese Medicine, Kunming 650500, China
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Dynamic RNA-Seq Study Reveals the Potential Regulators of Seed Germination in Paris polyphylla var. yunnanensis. PLANTS 2022; 11:plants11182400. [PMID: 36145801 PMCID: PMC9505804 DOI: 10.3390/plants11182400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 09/09/2022] [Accepted: 09/13/2022] [Indexed: 11/17/2022]
Abstract
Paris polyphylla var. yunnanensis is an important traditional Chinese medicine, but poor seed germination limits its large-scale artificial cultivation. Thus, it is crucial to understand the regulators of seed germination to obtain clues about how to improve the artificial cultivation of Paris polyphylla. In this study, the seeds at three germination stages, including ungerminated seeds (stage 1), germinated seeds with a 0.5 cm radicel length (stage 2), and germinated seeds with a 2.0 cm radicel length (stage 3) after warm stratification (20 °C) for 90 days were used for RNA sequencing. Approximately 220 million clean reads and 447,314 annotated unigenes were obtained during seed germination, of which a total of 4454, 5150, and 1770 differentially expressed genes (DEGs) were identified at stage 1 to stage 2, stage 1 to stage 3, and stage 2 to stage 3, respectively. Encyclopedia of Genes and Genomes (KEGG) analysis revealed that the DEGs were significantly enriched in carbohydrate metabolism, lipid metabolism, signal transduction, and translation. Of them, several genes encoding the glutamate decarboxylase, glutamine synthetase, alpha-galactosidase, auxin-responsive protein IAA30, abscisic-acid-responsive element binding factor, mitogen-activated protein kinase kinase 9/18, and small and large subunit ribosomal proteins were identified as potentially involved in seed germination. The identified genes provide a valuable resource to study the molecular basis of seed germination in Paris polyphylla var. yunnanensis.
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Analysis of public domain plant transcriptomes expands the phylogenetic diversity of the family Secoviridae. Virus Genes 2022; 58:598-604. [PMID: 36040568 DOI: 10.1007/s11262-022-01931-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Accepted: 08/24/2022] [Indexed: 10/14/2022]
Abstract
Secoviruses are mono-/bipartite plant-infecting, icosahedral RNA viruses that incite economically important diseases in plants. In the present study, nine secoviruses tentatively named as Ananas comosus secovirus (AcSV), Artocarpus altilis secovirus (AaSV), Boehmeria nivea secovirus (BnSV), Gynostemma pentaphyllum secovirus (GpSV), Orobanche cernua secovirus (OcSV), Paris polyphylla secovirus 1 (PpSV1), Paris polyphylla secovirus 2 (PpSV2), Rhododendron delavayi secovirus (RdSV), and Yucca gloriosa secovirus (YgSV) were identified by probing publicly available transcriptomes of eight plant species. Coding-complete genome/genome segments of all the identified viruses encoding a polyprotein were recovered. Two of the nine identified viruses-AcSV and GpSV were discovered in few of the small RNA libraries of respective plant species. Putative cleavage sites were predicted in polyproteins encoded by AcSV, GpSV, PpSV2 and YgSV genome segments. Phylogenetic and sequence identity analyses revealed that AcSV, GpSV and YgSV, PpSV1 and RdSV putatively belong to the genera- Sadwavirus (sub genus: Cholivirus), Fabavirus, Nepovirus and Waikavirus, respectively, while AaSV, BnSV, and PpSV2 may represent a distinct group of viruses within the family Secoviridae as they could not conclusively be assigned to a single genus.
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Gao X, Zhang X, Chen W, Li J, Yang W, Zhang X, Li S, Liu C. Transcriptome analysis of Paris polyphylla var. yunnanensis illuminates the biosynthesis and accumulation of steroidal saponins in rhizomes and leaves. PHYTOCHEMISTRY 2020; 178:112460. [PMID: 32692662 DOI: 10.1016/j.phytochem.2020.112460] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 07/10/2020] [Accepted: 07/12/2020] [Indexed: 06/11/2023]
Abstract
Paris polyphylla var. yunnanensis can synthesize Paris saponins with multiple effective therapies, and its rhizome has become an indispensable ingredient in many patented drugs. However, how Paris saponin content changes in tissues at different stages and the molecular mechanisms underlying the production and accumulation of the bioactive compounds are unclear. This study aimed to uncover the mechanisms underlying the biosynthesis and accumulation by integrating transcriptome sequencing and phytochemical investigation of the leaves and rhizomes at different growth stages. Paris saponin content in leaves was lower during the fruiting stage than the vegetative stage, whereas the content in rhizomes increased during the fruiting stage. The candidate genes related to Paris saponin biosynthesis were determined by transcriptome analyses. Most biosynthetic genes were found to be abundantly expressed in the leaves during the vegetative stage in the light of expression profiles and functional enrichment results. The expression patterns of the differentially expressed genes related to the biosynthesis were positively correlated with the accumulation of saponins in tissues. These findings suggest that both leaves and rhizomes are capable of biosynthesizing Paris saponins, and that aerial plant parts can be used to extract them. The different patterns of biosynthesis and accumulation in the leaves and rhizomes were also determined here. This study will help improve our understanding of the mechanisms underlying the biosynthesis and accumulation of Paris saponins, and aid in the comprehensive development and utilization of this medicinal plant.
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Affiliation(s)
- Xiaoyang Gao
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China
| | - Xuan Zhang
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wen Chen
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China
| | - Jing Li
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wenjing Yang
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xingwang Zhang
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, Shandong, 266237, China
| | - Shengying Li
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, Shandong, 266237, China
| | - Changning Liu
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China; Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Menglun, Mengla, Yunnan, 666303, China; The Innovative Academy of Seed Design, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China.
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Huarte HR, Puglia GD, Prjibelski AD, Raccuia SA. Seed Transcriptome Annotation Reveals Enhanced Expression of Genes Related to ROS Homeostasis and Ethylene Metabolism at Alternating Temperatures in Wild Cardoon. PLANTS 2020; 9:plants9091225. [PMID: 32961840 PMCID: PMC7570316 DOI: 10.3390/plants9091225] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 09/09/2020] [Accepted: 09/13/2020] [Indexed: 12/20/2022]
Abstract
The association among environmental cues, ethylene response, ABA signaling, and reactive oxygen species (ROS) homeostasis in the process of seed dormancy release is nowadays well-established in many species. Alternating temperatures are recognized as one of the main environmental signals determining dormancy release, but their underlying mechanisms are scarcely known. Dry after-ripened wild cardoon achenes germinated poorly at a constant temperature of 20, 15, or 10 °C, whereas germination was stimulated by 80% at alternating temperatures of 20/10 °C. Using an RNA-Seq approach, we identified 23,640 and annotated 14,078 gene transcripts expressed in dry achenes and achenes exposed to constant or alternating temperatures. Transcriptional patterns identified in dry condition included seed reserve and response to dehydration stress genes (i.e., HSPs, peroxidases, and LEAs). At a constant temperature, we observed an upregulation of ABA biosynthesis genes (i.e., NCED9), ABA-responsive genes (i.e., ABI5 and TAP), as well as other genes previously related to physiological dormancy and inhibition of germination. However, the alternating temperatures were associated with the upregulation of ethylene metabolism (i.e., ACO1, 4, and ACS10) and signaling (i.e., EXPs) genes and ROS homeostasis regulators genes (i.e., RBOH and CAT). Accordingly, the ethylene production was twice as high at alternating than at constant temperatures. The presence in the germination medium of ethylene or ROS synthesis and signaling inhibitors reduced significantly, but not completely, germination at 20/10 °C. Conversely, the presence of methyl viologen and salicylhydroxamic acid (SHAM), a peroxidase inhibitor, partially increased germination at constant temperature. Taken together, the present study provides the first insights into the gene expression patterns and physiological response associated with dormancy release at alternating temperatures in wild cardoon (Cynara cardunculus var. sylvestris).
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Affiliation(s)
- Hector R. Huarte
- CONICET/Faculty of Agricultural Sciences, National University of Lomas de Zamora, 1836 Llavallol, Argentina;
| | - Giuseppe. D. Puglia
- Institute for Agricultural and Forestry Systems in the Mediterranean (ISAFoM), Department of Biology, Agriculture and Food Science (DiSBA), National Research Council (CNR), Via Empedocle, 58, 95128 Catania, Italy;
- Correspondence: ; Tel.: +39-0956139914
| | - Andrey D. Prjibelski
- Center for Algorithmic Biotechnology, Institute of Translational Biomedicine, St. Petersburg State University, 199004 St. Petersburg, Russia;
| | - Salvatore A. Raccuia
- Institute for Agricultural and Forestry Systems in the Mediterranean (ISAFoM), Department of Biology, Agriculture and Food Science (DiSBA), National Research Council (CNR), Via Empedocle, 58, 95128 Catania, Italy;
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