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Wang J, Song Y, Wang G, Shi L, Shen Y, Liu W, Xu Y, Lou X, Jia W, Zhang M, Shang W, He S, Wang Z. PoARRO-1 regulates adventitious rooting through interaction with PoIAA27b in Paeonia ostii. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 347:112204. [PMID: 39059631 DOI: 10.1016/j.plantsci.2024.112204] [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: 04/19/2024] [Revised: 07/18/2024] [Accepted: 07/23/2024] [Indexed: 07/28/2024]
Abstract
Adventitious root (AR) formation is a limiting factor in the vegetative propagation of tree peony (Paeonia suffruticosa Andr.). PoARRO-1, which encodes an auxin oxidase involved in AR formation, plays a role in the root development of P. ostii, but its associated molecular regulatory mechanisms are not yet understood. In this study, we examined the role of PoARRO-1 in AR formation in P. ostii. The overexpression of PoARRO-1 in P. ostii test-tube plantlets led to a notable enhancement in both the rooting rate and the average number of ARs in vitro, as well as increased activities of peroxidase (POD), superoxide dismutase (SOD), and indoleacetic acid oxidase (IAAO). PoARRO-1 was involved in the conversion of IAA-Asp and IAA-Glu to OxIAA and promoted IAA oxidation. RNA sequencing analysis revealed that PoARRO-1 overexpression led to upregulation of enzyme activity, auxin metabolism related genes. Further analyses showed that PoARRO-1 interacted with the 1-175 aa position of PoIAA27b to regulate the formation of ARs. We therefore propose that PoARRO-1 interacts with PoIAA27b to promote AR formation, and it may be useful targets for enhancing the in vitro propagation of P. ostii.
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Affiliation(s)
- Jiange Wang
- College of Landscape Architecture and Art, Henan Agricultural University, Zhengzhou 450002, China
| | - Yinglong Song
- College of Landscape Architecture and Art, Henan Agricultural University, Zhengzhou 450002, China
| | - Guiqing Wang
- College of Landscape Architecture and Art, Henan Agricultural University, Zhengzhou 450002, China
| | - Liyun Shi
- College of Landscape Architecture and Art, Henan Agricultural University, Zhengzhou 450002, China
| | - Yuxiao Shen
- College of Landscape Architecture and Art, Henan Agricultural University, Zhengzhou 450002, China
| | - Weichao Liu
- College of Landscape Architecture and Art, Henan Agricultural University, Zhengzhou 450002, China
| | - Yufeng Xu
- College of Landscape Architecture and Art, Henan Agricultural University, Zhengzhou 450002, China
| | - Xueyuan Lou
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China
| | - Wenqing Jia
- School of Horticulture Landscape Architecture, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Minhuan Zhang
- College of Landscape Architecture, Central South University of Forestry and Technology, Changsha 410004, China
| | - Wenqian Shang
- College of Landscape Architecture and Art, Henan Agricultural University, Zhengzhou 450002, China.
| | - Songlin He
- College of Landscape Architecture and Art, Henan Agricultural University, Zhengzhou 450002, China.
| | - Zheng Wang
- College of Landscape Architecture and Art, Henan Agricultural University, Zhengzhou 450002, China.
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Kunc P, Medic A, Osterc G. Involvement of Auxin, Flavonoids and Strigolactones in the Different Rooting Ability of European Chestnut ( Castanea sativa) and Hybrids ( Castanea crenata × Castanea sativa). PLANTS (BASEL, SWITZERLAND) 2024; 13:2088. [PMID: 39124205 PMCID: PMC11314612 DOI: 10.3390/plants13152088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Revised: 07/21/2024] [Accepted: 07/25/2024] [Indexed: 08/12/2024]
Abstract
The aim of this study was to investigate the differences between Castanea sativa Mill. and Castanea crenata Siebold & Zucc. × Castanea sativa Mill. in rooting ability in relation to endogenous levels of auxin, auxin cofactors and inhibitors that influence rooting success. Leafy cuttings of the two commercial cultivars 'Marsol' and 'Maraval' (Castanea crenata × Castanea sativa) and the native accession 'Kozjak' (Castanea sativa) were analyzed. Endogenous indole-3-acetic acid (IAA) concentration was assessed at the beginning of propagation (day 0); in addition, strigolactones, flavonoids, rooting ability and quality were assessed 120 days after. The concentration of endogenous IAA in 'Maraval' (324.34 ± 28.66 ng g-1) and 'Marsol' (251.60 ± 35.44 ng g-1) was significantly higher than in 'Kozjak' (112.87 ± 35.44 ng g-1). The best rooting result was observed with the genotypes 'Maraval' (100.00 ± 0.00%) and 'Marsol' (90.48 ± 6.15%). A significantly lower strigol concentration was observed in the roots of 'Maraval' (75.54 ± 17.93 ng g-1) compared with other genotypes. The total flavonoid concentration in 'Maraval' was significantly higher (2794.99 ± 187.13 μg g-1) than in 'Kozjak' (1057.38 ± 61.05 μg g-1). Our results indicate that the concentration of endogenous IAA has a significant influence on rooting success. The results further indicate that in the case of flavonoids and strigolactones, not only the individual compounds but also their ratio is important for rooting success. Correlation coefficients calculated between analyzed compounds and rooting success point toward specific functions of flavonoids and strigolactones in the rooting of Castanea that need to be functionally analyzed.
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Affiliation(s)
| | | | - Gregor Osterc
- Department of Agronomy, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, SI-1000 Ljubljana, Slovenia; (P.K.); (A.M.)
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3
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Wang S, Wu H, Zhang Y, Sun G, Qian W, Qu F, Zhang X, Hu J. Transcriptome Reveals the Regulation of Exogenous Auxin Inducing Rooting of Non-Rooting Callus of Tea Cuttings. Int J Mol Sci 2024; 25:8080. [PMID: 39125650 PMCID: PMC11311428 DOI: 10.3390/ijms25158080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 07/22/2024] [Accepted: 07/23/2024] [Indexed: 08/12/2024] Open
Abstract
Cuttage is the main propagation method of tea plant cultivars in China. However, some tea softwood cuttings just form an expanded and loose callus at the base, without adventitious root (AR) formation during the propagation period. Meanwhile, exogenous auxin could promote the AR formation of tea plant cuttings, but the regulation mechanism has not yet explained clearly. We conducted this study to elucidate the regulatory mechanism of exogenous auxin-induced adventitious root (AR) formation of such cuttings. The transcriptional expression profile of non-rooting tea calluses in response to exogenous IBA and NAA was analyzed using ONT RNA Seq technology. In total, 56,178 differentially expressed genes (DEGs) were detected, and most of genes were significantly differentially expressed after 12 h of exogenous auxin treatment. Among these DEGs, we further identified 80 DEGs involved in the auxin induction pathway and AR formation. Specifically, 14 auxin respective genes (ARFs, GH3s, and AUX/IAAs), 3 auxin transporters (AUX22), 19 auxin synthesis- and homeostasis-related genes (cytochrome P450 (CYP450) and calmodulin-like protein (CML) genes), and 44 transcription factors (LOB domain-containing protein (LBDs), SCARECROW-LIKE (SCL), zinc finger protein, WRKY, MYB, and NAC) were identified from these DEGs. Moreover, we found most of these DEGs were highly up-regulated at some stage before AR formation, suggesting that they may play a potential role in the AR formation of tea plant cuttings. In summary, this study will provide a theoretical foundation to deepen our understanding of the molecular mechanism of AR formation in tea cuttings induced by auxin during propagation time.
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Affiliation(s)
| | | | | | | | | | | | | | - Jianhui Hu
- College of Horticulture, Qingdao Agricultural University, Qingdao 266109, China; (S.W.); (H.W.); (Y.Z.); (G.S.); (W.Q.); (F.Q.); (X.Z.)
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4
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Wang W, Jiao M, Huang X, Liang W, Ma Z, Lu Z, Tian S, Gao X, Fan L, He X, Bao J, Yu Y, Zhang D, Bao L. The auxin-responsive CsSPL9-CsGH3.4 module finely regulates auxin levels to suppress the development of adventitious roots in tea (Camellia sinensis). THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024. [PMID: 39012276 DOI: 10.1111/tpj.16916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Revised: 06/08/2024] [Accepted: 06/24/2024] [Indexed: 07/17/2024]
Abstract
The cutting technique is extensively used in tea breeding, with key emphasis on promoting the growth of adventitious roots (ARs). Despite its importance in tea cultivation, the mechanisms underlying AR development in tea remain unclear. In this study, we demonstrated the essential role of auxins in the initiation and progression of AR and established that the application of exogenous 1-naphthaleneacetic acid-enhanced AR formation in tissue-cultured seedlings and cuttings. Then, we found that the auxin-responsive transcription factor CsSPL9 acted as a negative regulator of AR development by reducing the levels of free indole-3-acetic acid (IAA) in tea plants. Furthermore, we identified CsGH3.4 as a downstream target of CsSPL9, which was activated by direct binding to its promoter. CsGH3.4 also inhibited AR development and maintained low levels of free IAA. Thus, these results revealed the inhibitory effect of the auxin-responsive CsSPL9-CsGH3.4 module on AR development by reducing free IAA levels in tea. These findings have significant theoretical and practical value for enhancing tea breeding practices.
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Affiliation(s)
- Wenzhao Wang
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Mengmin Jiao
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Xue Huang
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Wenjuan Liang
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Zhonglian Ma
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Zhanling Lu
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Shenyang Tian
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Xiuhua Gao
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Li Fan
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Xinyue He
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Junhua Bao
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Youben Yu
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Dong Zhang
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Lu Bao
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
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5
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Dou H, Sun J, Wang T, Bi S, Feng X, Sun H, Quan J. Transcriptomic profiling and discovery of key transcription factors involved in adventitious roots formation from root cuttings of mulberry. BMC Genomics 2024; 25:693. [PMID: 39009981 PMCID: PMC11251115 DOI: 10.1186/s12864-024-10593-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Accepted: 07/03/2024] [Indexed: 07/17/2024] Open
Abstract
ARs plays a crucial role in plant morphogenesis and development. The limited and inefficient rooting of scions poses a significant challenge to the efficiency and quality of clonal propagation of forest trees in silvicultural practices. Building on previous research conducted by our team, we found that applying IBA at a concentration of 1000 mg/L significantly enhanced mulberry rooting. This study aims to uncover the molecular mechanisms underlying this effect by analyzing RNA sequencing data from mulberry phloem before and after treatment with IBA over time intervals of 10, 20, 30, and 40 days. We identified 5226 DEGs, which were then classified into GO terms and KEGG pathways, showing significant enrichment in hormone signaling processes. Using WGCNA, we identified eight co-expression modules, two of which were significantly correlated with the IBA treatment. Additionally, 18 transcription factors that potentially facilitate ARs formation in mulberry were identified, and an exploratory analysis on the cis-regulatory elements associated with these transcription factors was conducted. The findings of this study provide a comprehensive understanding of the mechanisms of ARs in mulberry and offer theoretical support for the discovery and utilization of exceptional genetic resources within the species.
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Affiliation(s)
- Hao Dou
- College of Forest, Henan Agricultural University, Zhengzhou, 450002, China
| | - Jiajia Sun
- College of Forest, Henan Agricultural University, Zhengzhou, 450002, China
| | - Tiantian Wang
- College of Forest, Henan Agricultural University, Zhengzhou, 450002, China
| | - Shuwen Bi
- College of Forest, Henan Agricultural University, Zhengzhou, 450002, China
| | - Xi Feng
- College of Forest, Henan Agricultural University, Zhengzhou, 450002, China
| | - Huijuan Sun
- College of Forest, Henan Agricultural University, Zhengzhou, 450002, China
| | - Jin'e Quan
- College of Forest, Henan Agricultural University, Zhengzhou, 450002, China.
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Zhou Y, Li A, Du T, Qin Z, Zhang L, Wang Q, Li Z, Hou F. A Small Auxin-Up RNA Gene, IbSAUR36, Regulates Adventitious Root Development in Transgenic Sweet Potato. Genes (Basel) 2024; 15:760. [PMID: 38927696 PMCID: PMC11203243 DOI: 10.3390/genes15060760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Revised: 06/05/2024] [Accepted: 06/05/2024] [Indexed: 06/28/2024] Open
Abstract
Small auxin-upregulated RNAs (SAURs), as the largest family of early auxin-responsive genes, play important roles in plant growth and development processes, such as auxin signaling and transport, hypocotyl development, and tolerance to environmental stresses. However, the functions of few SAUR genes are known in the root development of sweet potatoes. In this study, an IbSAUR36 gene was cloned and functionally analyzed. The IbSAUR36 protein was localized to the nucleus and plasma membrane. The transcriptional level of this gene was significantly higher in the pencil root and leaf.This gene was strongly induced by indole-3-acetic acid (IAA), but it was downregulated under methyl-jasmonate(MeJA) treatment. The promoter of IbSAUR36 contained the core cis-elements for phytohormone responsiveness. Promoter β-glucuronidase (GUS) analysis in Arabidopsis showed that IbSAUR36 is highly expressed in the young tissues of plants, such as young leaves, roots, and buds. IbSAUR36-overexpressing sweet potato roots were obtained by an efficient Agrobacterium rhizogenes-mediated root transgenic system. We demonstrated that overexpression of IbSAUR36 promoted the accumulation of IAA, upregulated the genes encoding IAA synthesis and its signaling pathways, and downregulated the genes encoding lignin synthesis and JA signaling pathways. Taken together, these results show that IbSAUR36 plays an important role in adventitious root (AR) development by regulating IAA signaling, lignin synthesis, and JA signaling pathways in transgenic sweet potatoes.
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Affiliation(s)
- Yuanyuan Zhou
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Aixian Li
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Taifeng Du
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Zhen Qin
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Liming Zhang
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Qingmei Wang
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Zongyun Li
- Key Laboratory of Phylogeny and Comparative Genomics of the Jiangsu Province, School of Life Sciences, Jiangsu Normal University, Xuzhou 221116, China
| | - Fuyun Hou
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, China
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7
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Xu Q, Wu M, Zhang L, Chen X, Zhou M, Jiang B, Jia Y, Yong X, Tang S, Mou L, Jia Z, Shabala S, Pan Y. Unraveling Key Factors for Hypoxia Tolerance in Contrasting Varieties of Cotton Rose by Comparative Morpho-physiological and Transcriptome Analysis. PHYSIOLOGIA PLANTARUM 2024; 176:e14317. [PMID: 38686568 DOI: 10.1111/ppl.14317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Accepted: 04/10/2024] [Indexed: 05/02/2024]
Abstract
The cotton rose (Hibiscus mutabilis) is a plant species commonly found in tropical and subtropical regions. It is remarkably resilient to waterlogging stress; however, the underlying mechanism behind this trait is yet unknown. This study used hypoxia-tolerant "Danbanhong" (DBH) and more hypoxia-sensitive "Yurui" (YR) genotypes and compared their morpho-physiological and transcriptional responses to hypoxic conditions. Notably, DBH had a higher number of adventitious roots (20.3) compared to YR (10.0), with longer adventitious roots in DBH (18.3 cm) than in YR (11.2 cm). Furthermore, the formation of aerenchyma was 3-fold greater in DBH compared to YR. Transcriptomic analysis revealed that DBH had more rapid transcriptional responses to hypoxia than YR. Identification of a greater number of differentially expressed genes (DEGs) for aerenchyma, adventitious root formation and development, and energy metabolism in DBH supported that DBH had better morphological and transcriptional adaptation than YR. DEG functional enrichment analysis indicated the involvement of variety-specific biological processes in adaption to hypoxia. Plant hormone signaling transduction, MAPK signaling pathway and carbon metabolism played more pronounced roles in DBH, whereas the ribosome genes were specifically induced in YR. These results show that effective multilevel coordination of adventitious root development and aerenchyma, in conjunction with plant hormone signaling and carbon metabolism, is required for increased hypoxia tolerance. This study provides new insights into the characterization of morpho-physiological and transcriptional responses to hypoxia in H. mutabilis, shedding light on the molecular mechanisms of its adaptation to hypoxic environments.
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Affiliation(s)
- Qian Xu
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, China
- School of Biological Sciences, University of Western Australia, Crawley, WA, Australia
| | - Mengxi Wu
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, China
| | - Lu Zhang
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, China
| | - Xi Chen
- School of Biological Sciences, University of Western Australia, Crawley, WA, Australia
- International Research Centre for Environmental Membrane Biology, Foshan University, Foshan, China
| | - Mei Zhou
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, China
| | - Beibei Jiang
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, China
| | - Yin Jia
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, China
| | - Xue Yong
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, China
| | | | - Lisha Mou
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, China
| | - Zhishi Jia
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, China
| | - Sergey Shabala
- School of Biological Sciences, University of Western Australia, Crawley, WA, Australia
- International Research Centre for Environmental Membrane Biology, Foshan University, Foshan, China
| | - Yuanzhi Pan
- College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan, China
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8
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Liu J, Xuan L, Yu C, Hua J, Wang Z, Yin Y, Wang Z. Molecular Mechanism of Different Rooting Capacity between Two Clones of Taxodium hybrid 'Zhongshanshan'. Int J Mol Sci 2024; 25:2427. [PMID: 38397108 PMCID: PMC10889566 DOI: 10.3390/ijms25042427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 02/08/2024] [Accepted: 02/13/2024] [Indexed: 02/25/2024] Open
Abstract
The conifer Taxodium hybrid 'Zhongshanshan' (T. hybrid 'Zhongshanshan') is characterized by rapid growth, strong stress resistance, and high ornamental value and has significant potential for use in afforestation, landscaping, and wood production. The main method of propagating T. hybrid 'Zhongshanshan' is tender branch cutting, but the cutting rooting abilities of different T. hybrid 'Zhongshanshan' clones differ significantly. To explore the causes of rooting ability differences at a molecular level, we analyzed the transcriptome data of cutting base and root tissues of T. hybrid 'Zhongshanshan 149' with a rooting rate of less than 5% and T. hybrid 'Zhongshanshan 118' with rooting rate greater than 60%, at the developmental time points in this study. The results indicated that differentially expressed genes between the two clones were mainly associated with copper ion binding, peroxidase, and oxidoreductase activity, response to oxidative stress, phenylpropanoid and flavonoid biosynthesis, and plant hormone signal transduction, among others. The expression pattern of ThAP2 was different throughout the development of the adventitive roots of the two clone cuttings. Therefore, this gene was selected for further study. It was shown that ThAP2 was a nuclear-localized transcription factor and demonstrated a positive feedback effect on rooting in transgenic Nicotiana benthamiana cuttings. Thus, the results of this study explain the molecular mechanism of cutting rooting and provide candidate gene resources for developing genetic breeding strategies for optimizing superior clones of T. hybrid 'Zhongshanshan'.
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Affiliation(s)
- Jiaqi Liu
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China; (J.L.); (L.X.); (C.Y.); (J.H.); (Z.W.)
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Nanjing 210014, China
| | - Lei Xuan
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China; (J.L.); (L.X.); (C.Y.); (J.H.); (Z.W.)
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Nanjing 210014, China
| | - Chaoguang Yu
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China; (J.L.); (L.X.); (C.Y.); (J.H.); (Z.W.)
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Nanjing 210014, China
| | - Jianfeng Hua
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China; (J.L.); (L.X.); (C.Y.); (J.H.); (Z.W.)
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Nanjing 210014, China
| | - Ziyang Wang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China; (J.L.); (L.X.); (C.Y.); (J.H.); (Z.W.)
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Nanjing 210014, China
| | - Yunlong Yin
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China; (J.L.); (L.X.); (C.Y.); (J.H.); (Z.W.)
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Nanjing 210014, China
| | - Zhiquan Wang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China; (J.L.); (L.X.); (C.Y.); (J.H.); (Z.W.)
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Nanjing 210014, China
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9
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Uddin S, Munir MZ, Larriba E, Pérez-Pérez JM, Gull S, Pervaiz T, Mahmood U, Mahmood Z, Sun Y, Li Y. Temporal profiling of physiological, histological, and transcriptomic dissection during auxin-induced adventitious root formation in tetraploid Robinia pseudoacacia micro-cuttings. PLANTA 2024; 259:66. [PMID: 38332379 DOI: 10.1007/s00425-024-04341-1] [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: 10/10/2023] [Accepted: 01/10/2024] [Indexed: 02/10/2024]
Abstract
MAIN CONCLUSION Optimal levels of indole-3-butyric acid (IBA) applied at the stem base promote adventitious root (AR) initiation and primordia formation, thus promoting the rooting of leafy micro-cuttings of tetraploid Robinia pseudoacacia. Tetraploid Robinia pseudoacacia L. is a widely cultivated tree in most regions of China that has a hard-rooting capability, propagated by stem cuttings. This study utilizes histological, physiological, and transcriptomic approaches to explore how root primordia are induced after indole butyric acid (IBA) treatment of micro-cuttings. IBA application promoted cell divisions in some cells within the vasculature, showing subcellular features associated with adventitious root (AR) founder cells. The anatomical structure explicitly showed that AR initiated from the cambium layer and instigate the inducible development of AR primordia. Meanwhile, the hormone data showed that similar to that of indole-3-acetic acid, the contents of trans-zeatin and abscisic acid peaked at early stages of AR formation and increased gradually in primordia formation across the subsequent stages, suggesting their indispensable roles in AR induction. On the contrary, 24-epibrassinolide roughly maintained at extremely high levels during primordium initiation thoroughly, indicating its presence was involved in cell-specific reorganization during AR development. Furthermore, antioxidant activities transiently increased in the basal region of micro-cuttings and may serve as biochemical indicators for distinct rooting phases, potentially aiding in AR formation. Transcriptomic analysis during the early stages of root formation shows significant downregulation of the abscisic acid and jasmonate signaling pathways, while ethylene and cytokinin signaling seems upregulated. Network analysis of genes involved in carbon metabolism and photosynthesis indicates that the basal region of the micro-cuttings undergoes rapid reprogramming, which results in the breakdown of sugars into pyruvate. This pyruvate is then utilized to fuel the tricarboxylic acid cycle, thereby sustaining growth through aerobic respiration. Collectively, our findings provide a time-course morphophysiological dissection and also suggest the regulatory role of a conserved auxin module in AR development in these species.
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Affiliation(s)
- Saleem Uddin
- State Key Laboratory of Tree Genetics and Breeding, Engineering Technology Research Center of Black Locust of National Forestry and Grassland Administration, National Engineering Research Center of Tree Breeding and Ecological Restoration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100083, People's Republic of China
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing, 400716, China
| | - Muhammad Zeeshan Munir
- State Key Laboratory of Tree Genetics and Breeding, Engineering Technology Research Center of Black Locust of National Forestry and Grassland Administration, National Engineering Research Center of Tree Breeding and Ecological Restoration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100083, People's Republic of China
- School of Environment and Energy, Shenzhen Graduate School, Peking University, Shenzhen, 518055, China
| | - Eduardo Larriba
- Instituto de Bioingeniería, Universidad Miguel Hernández de Elche, Alicante, Spain
| | | | - Sadia Gull
- Department of Horticulture, College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Tariq Pervaiz
- Department of Botany and Plant Sciences, University of California Riverside, Riverside, CA, 22963, USA
| | - Umer Mahmood
- Department of Plant Breeding, Swedish University of Agricultural Sciences, Alnarp, Sweden
| | - Zahid Mahmood
- Crop Sciences Institute, National Agricultural Research Centre, Islamabad, 44000, Pakistan
| | - Yuhan Sun
- State Key Laboratory of Tree Genetics and Breeding, Engineering Technology Research Center of Black Locust of National Forestry and Grassland Administration, National Engineering Research Center of Tree Breeding and Ecological Restoration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100083, People's Republic of China.
| | - Yun Li
- State Key Laboratory of Tree Genetics and Breeding, Engineering Technology Research Center of Black Locust of National Forestry and Grassland Administration, National Engineering Research Center of Tree Breeding and Ecological Restoration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100083, People's Republic of China.
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10
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Roth O, Yechezkel S, Serero O, Eliyahu A, Vints I, Tzeela P, Carignano A, Janacek DP, Peters V, Kessel A, Dwivedi V, Carmeli-Weissberg M, Shaya F, Faigenboim-Doron A, Ung KL, Pedersen BP, Riov J, Klavins E, Dawid C, Hammes UZ, Ben-Tal N, Napier R, Sadot E, Weinstain R. Slow release of a synthetic auxin induces formation of adventitious roots in recalcitrant woody plants. Nat Biotechnol 2024:10.1038/s41587-023-02065-3. [PMID: 38267759 DOI: 10.1038/s41587-023-02065-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 11/15/2023] [Indexed: 01/26/2024]
Abstract
Clonal propagation of plants by induction of adventitious roots (ARs) from stem cuttings is a requisite step in breeding programs. A major barrier exists for propagating valuable plants that naturally have low capacity to form ARs. Due to the central role of auxin in organogenesis, indole-3-butyric acid is often used as part of commercial rooting mixtures, yet many recalcitrant plants do not form ARs in response to this treatment. Here we describe the synthesis and screening of a focused library of synthetic auxin conjugates in Eucalyptus grandis cuttings and identify 4-chlorophenoxyacetic acid-L-tryptophan-OMe as a competent enhancer of adventitious rooting in a number of recalcitrant woody plants, including apple and argan. Comprehensive metabolic and functional analyses reveal that this activity is engendered by prolonged auxin signaling due to initial fast uptake and slow release and clearance of the free auxin 4-chlorophenoxyacetic acid. This work highlights the utility of a slow-release strategy for bioactive compounds for more effective plant growth regulation.
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Affiliation(s)
- Ohad Roth
- School of Plant Sciences and Food Security, Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Sela Yechezkel
- The Institute of Plant Sciences, The Volcani Center, Ministry of Agriculture and Rural Development, Rishon LeZion, Israel
| | - Ori Serero
- The Institute of Plant Sciences, The Volcani Center, Ministry of Agriculture and Rural Development, Rishon LeZion, Israel
- The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Avi Eliyahu
- The Institute of Plant Sciences, The Volcani Center, Ministry of Agriculture and Rural Development, Rishon LeZion, Israel
- The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Inna Vints
- School of Plant Sciences and Food Security, Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Pan Tzeela
- The Institute of Plant Sciences, The Volcani Center, Ministry of Agriculture and Rural Development, Rishon LeZion, Israel
- The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Alberto Carignano
- Department of Electrical and Computer Engineering, University of Washington, Seattle, WA, USA
| | - Dorina P Janacek
- Chair of Plant Systems Biology, Technical University of Munich, Freising, Germany
| | - Verena Peters
- Chair of Food Chemistry and Molecular and Sensory Science, Technical University of Munich, Freising, Germany
| | - Amit Kessel
- Department of Biochemistry and Molecular BiologySchool of Neurobiology, Biochemistry & Biophysics, Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Vikas Dwivedi
- The Institute of Plant Sciences, The Volcani Center, Ministry of Agriculture and Rural Development, Rishon LeZion, Israel
| | - Mira Carmeli-Weissberg
- The Institute of Plant Sciences, The Volcani Center, Ministry of Agriculture and Rural Development, Rishon LeZion, Israel
| | - Felix Shaya
- The Institute of Plant Sciences, The Volcani Center, Ministry of Agriculture and Rural Development, Rishon LeZion, Israel
| | - Adi Faigenboim-Doron
- The Institute of Plant Sciences, The Volcani Center, Ministry of Agriculture and Rural Development, Rishon LeZion, Israel
| | - Kien Lam Ung
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark
| | | | - Joseph Riov
- The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Eric Klavins
- Department of Electrical and Computer Engineering, University of Washington, Seattle, WA, USA
| | - Corinna Dawid
- Chair of Food Chemistry and Molecular and Sensory Science, Technical University of Munich, Freising, Germany
| | - Ulrich Z Hammes
- Chair of Plant Systems Biology, Technical University of Munich, Freising, Germany
| | - Nir Ben-Tal
- Department of Biochemistry and Molecular BiologySchool of Neurobiology, Biochemistry & Biophysics, Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Richard Napier
- School of Life Sciences, University of Warwick, Coventry, UK
| | - Einat Sadot
- The Institute of Plant Sciences, The Volcani Center, Ministry of Agriculture and Rural Development, Rishon LeZion, Israel.
| | - Roy Weinstain
- School of Plant Sciences and Food Security, Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel.
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11
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Tian Y, Yang W, Wan S, Fang S. Insights into the Hormone-Regulating Mechanism of Adventitious Root Formation in Softwood Cuttings of Cyclocarya paliurus and Optimization of the Hormone-Based Formula for Promoting Rooting. Int J Mol Sci 2024; 25:1343. [PMID: 38279343 PMCID: PMC10816064 DOI: 10.3390/ijms25021343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/13/2024] [Accepted: 01/15/2024] [Indexed: 01/28/2024] Open
Abstract
Adventitious root (AR) formation is vital for successful cutting propagation in plants, while the dynamic regulation of phytohormones is viewed as one of the most important factors affecting AR formation. Cyclocarya paliurus, a hard-to-root plant, is faced with the bottleneck of cloning its superior varieties in practice. In this study, ten treatments were designed to figure out the best hormone-based formula for promoting AR formation in softwood cuttings and explore their hormone-regulating mechanisms. Both the rooting process and the rooting parameters of the softwood cuttings were significantly affected by different hormone-based formulas (p < 0.05), while the greatest rooting rate (93%) and root quality index were achieved in the H3 formula (SR3:IR3 = 1:1). Significant differences in the measured phytohormone concentrations, as well as in their ratios, were detected among the cuttings sampled at various AR formation stages (p < 0.05), whereas the dynamics for each phytohormone varied greatly during AR formation. The transcriptome analysis showed 12,028 differentially expressed genes (DEGs) identified during the rooting process of C. paliurus cuttings, while the KEGG enrichment analysis indicated that a total of 20 KEGG terms were significantly enriched in all the comparison samples, with 253 DEGs detected in signal transduction. Furthermore, 19 genes with vital functions in regulating the hormone signaling pathway were identified by means of a WGCNA analysis. Our results not only optimize a hormone-based formula for improving the rooting of C. paliurus cuttings but also provide an insight into the hormonal regulatory network during AR formation in softwood C. paliurus cuttings.
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Affiliation(s)
- Yuan Tian
- College of Forestry and Grassland, Nanjing Forestry University, Nanjing 210037, China; (Y.T.); (W.Y.); (S.W.)
| | - Wanxia Yang
- College of Forestry and Grassland, Nanjing Forestry University, Nanjing 210037, China; (Y.T.); (W.Y.); (S.W.)
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Shiying Wan
- College of Forestry and Grassland, Nanjing Forestry University, Nanjing 210037, China; (Y.T.); (W.Y.); (S.W.)
| | - Shengzuo Fang
- College of Forestry and Grassland, Nanjing Forestry University, Nanjing 210037, China; (Y.T.); (W.Y.); (S.W.)
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
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12
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Du Q, Song K, Wang L, Du L, Du H, Li B, Li H, Yang L, Wang Y, Liu P. Integrated Transcriptomics and Metabolomics Analysis Promotes the Understanding of Adventitious Root Formation in Eucommia ulmoides Oliver. PLANTS (BASEL, SWITZERLAND) 2024; 13:136. [PMID: 38202444 PMCID: PMC10780705 DOI: 10.3390/plants13010136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 12/28/2023] [Accepted: 12/29/2023] [Indexed: 01/12/2024]
Abstract
As a primary approach to nutrient propagation for many woody plants, cutting roots is essential for the breeding and production of Eucommia ulmoides Oliver. In this study, hormone level, transcriptomics, and metabolomics analyses were performed on two E. ulmoides varieties with different adventitious root (AR) formation abilities. The higher JA level on the 0th day and the lower JA level on the 18th day promoted superior AR development. Several hub genes executed crucial roles in the crosstalk regulation of JA and other hormones, including F-box protein (EU012075), SAUR-like protein (EU0125382), LOB protein (EU0124232), AP2/ERF transcription factor (EU0128499), and CYP450 protein (EU0127354). Differentially expressed genes (DEGs) and metabolites of AR formation were enriched in phenylpropanoid biosynthesis, flavonoid biosynthesis, and isoflavonoid biosynthesis pathways. The up-regulated expression of PAL, CCR, CAD, DFR, and HIDH genes on the 18th day could contribute to AR formation. The 130 cis-acting lncRNAs had potential regulatory functions on hub genes in the module that significantly correlated with JA and DEGs in three metabolism pathways. These revealed key molecules, and vital pathways provided more comprehensive insight for the AR formation mechanism of E. ulmoides and other plants.
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Affiliation(s)
- Qingxin Du
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, Zhengzhou 450003, China; (Q.D.); (L.W.); (L.D.); (H.D.)
- College of Forestry, Nanjing Forestry University, Nanjing 210037, China
| | - Kangkang Song
- College of Plant Protection and Agricultural Big-Data Research Center, Shandong Agricultural University, Tai’an 271018, China; (K.S.); (B.L.)
- State Forestry and Grassland Administration Key Laboratory of Silviculture in Downstream Areas of the Yellow River, Mountain Tai Forest Ecosystem Research Station of State Forestry and Grassland Administration, College of Forestry, Shandong Agricultural University, Tai’an 271018, China
| | - Lu Wang
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, Zhengzhou 450003, China; (Q.D.); (L.W.); (L.D.); (H.D.)
| | - Lanying Du
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, Zhengzhou 450003, China; (Q.D.); (L.W.); (L.D.); (H.D.)
| | - Hongyan Du
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, Zhengzhou 450003, China; (Q.D.); (L.W.); (L.D.); (H.D.)
| | - Bin Li
- College of Plant Protection and Agricultural Big-Data Research Center, Shandong Agricultural University, Tai’an 271018, China; (K.S.); (B.L.)
| | - Haozhen Li
- College of Plant Protection and Agricultural Big-Data Research Center, Shandong Agricultural University, Tai’an 271018, China; (K.S.); (B.L.)
| | - Long Yang
- College of Plant Protection and Agricultural Big-Data Research Center, Shandong Agricultural University, Tai’an 271018, China; (K.S.); (B.L.)
| | - Yan Wang
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, Zhengzhou 450003, China; (Q.D.); (L.W.); (L.D.); (H.D.)
| | - Panfeng Liu
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, Zhengzhou 450003, China; (Q.D.); (L.W.); (L.D.); (H.D.)
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13
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Chen K, Zhang X, Li Z, Wang W, Lv G, Yu Q, Liu G, Yang C, Jiang J. BpWOX11 promotes adventitious root formation in Betula pendula. BMC PLANT BIOLOGY 2024; 24:17. [PMID: 38163907 PMCID: PMC10759540 DOI: 10.1186/s12870-023-04703-z] [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: 07/21/2023] [Accepted: 12/21/2023] [Indexed: 01/03/2024]
Abstract
Adventitious root formation is a key step in vegetative propagation via cuttings. It is crucial for establishing birch plantations and preserve birch varieties. Although previous studies have highlighted role of WOX11 in controlling adventitious root formation, no such study has been conducted in birch. Understanding the mechanism of adventitious root formation is essential for improvement of rooting or survival rate using stem cuttings in birch. In this study, we cloned BpWOX11 and produced BpWOX11 overexpression (OE) transgenic lines using the Agrobacterium-mediated plant transformation. OE lines exhibited early initiated adventitious root formation, leading to increase the rooting rate of stem cuttings plants. RNA sequencing analysis revealed that OE lines induced the gene expression related to expansin and cell division pathway, as well as defense and stress response genes. These may be important factors for the BpWOX11 gene to promote adventitious root formation in birch cuttings. The results of this study will help to further understand the molecular mechanisms controlling the formation of adventitious roots in birch.
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Affiliation(s)
- Kun Chen
- State Key Laboratory of Tree Genetics And Breeding, Northeast Forestry University, 26 Hexing Road, Harbin, 150040, China
| | - Xiaoyue Zhang
- State Key Laboratory of Tree Genetics And Breeding, Northeast Forestry University, 26 Hexing Road, Harbin, 150040, China
| | - Zhenglun Li
- State Key Laboratory of Tree Genetics And Breeding, Northeast Forestry University, 26 Hexing Road, Harbin, 150040, China
| | - Wei Wang
- State Key Laboratory of Tree Genetics And Breeding, Northeast Forestry University, 26 Hexing Road, Harbin, 150040, China
| | - Guanbin Lv
- State Key Laboratory of Tree Genetics And Breeding, Northeast Forestry University, 26 Hexing Road, Harbin, 150040, China
| | - Qibin Yu
- Citrus Research and Education Center, University of Florida, Lake Alfred, FL, 33850, USA
| | - Guifeng Liu
- State Key Laboratory of Tree Genetics And Breeding, Northeast Forestry University, 26 Hexing Road, Harbin, 150040, China
| | - Chuanping Yang
- State Key Laboratory of Tree Genetics And Breeding, Northeast Forestry University, 26 Hexing Road, Harbin, 150040, China.
| | - Jing Jiang
- State Key Laboratory of Tree Genetics And Breeding, Northeast Forestry University, 26 Hexing Road, Harbin, 150040, China.
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14
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Zhang H, Chen B, Zhao X, Hu J, Dong Z, Xiao H, Yuan Y, Guo F, Wang Y, Ni D, Wang P. Novel insights into the role of leaf in the cutting process of Camellia sinensis using physiological, biochemical and transcriptome analyses. TREE PHYSIOLOGY 2023; 43:2031-2045. [PMID: 37742093 DOI: 10.1093/treephys/tpad101] [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: 05/22/2023] [Accepted: 08/12/2023] [Indexed: 09/25/2023]
Abstract
Cuttage is the preferred approach for rapid propagation of many species including tea plant (Camellia sinensis). Leaf serves as a key part of nodal cutting, but there is a lack of systematic research on its role in the cutting process. In this study, 24 tea cultivars were employed to prove the necessity of leaf and light during cuttage. Further leaf physiological parameters found that lower net photosynthesis rate probably promoted rooting. Phytohormone content detection showed that auxin content and composition pattern were related to rooting ability. Leaf transcriptome analyses of cuttings from a representative easy-to-root cultivar (cv. Echa 10) revealed that genes involved in carbohydrate metabolism, signal transduction, metabolite biosynthesis and transportation were differentially expressed during the rooting process. CsTSA1, CsYUC10, CsAUX1s, CsPIN3 and CsPIN5 were selected as the candidate genes, which possibly regulate the rooting of nodal cuttings. These results illustrate the necessity of the leaf in cuttage and provide molecular evidence that leaf is an important place for signal transduction, metabolite synthesis and transport during the rooting process.
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Affiliation(s)
- Hong Zhang
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
| | - Binrui Chen
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiaoyi Zhao
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
| | - Jing Hu
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
| | - Zhijie Dong
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
| | - Hui Xiao
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
| | - Yanwen Yuan
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
| | - Fei Guo
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Urban Agriculture in Central China, Ministry of Agriculture, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
| | - Yu Wang
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Urban Agriculture in Central China, Ministry of Agriculture, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
| | - Dejiang Ni
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Urban Agriculture in Central China, Ministry of Agriculture, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
| | - Pu Wang
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Urban Agriculture in Central China, Ministry of Agriculture, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
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15
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Ma H, Li J, Luo A, Lv H, Ren Z, Yang H, Fang X, Shahzad MA, Qu H, Zhang K, Wang Q, Zheng S. Vanillin, a Newly Discovered Autotoxic Substance in Long-Term Potato Continuous Cropping Soil, Inhibits Plant Growth by Decreasing the Root Auxin Content and Reducing Adventitious Root Numbers. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023. [PMID: 37905798 DOI: 10.1021/acs.jafc.3c05027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Phenolic acids are known to reduce root biomass and hinder plant development, but it is unclear how they affect potato root traits. Over a 10 year field experiment, we found a negative correlation between the potato yield and continuous cropping years. The substantial reduction in adventitious root (AR) numbers was found to be primarily inhibited by soil vanillin accumulation. The study also found that vanillin had a more pronounced inhibitory effect on the potato yield than commonly reported ferulic acid and p-hydroxybenzoic acid. The decrease in yield was attributed to the reduction of root indole-3-acetic acid (IAA) content, which impeded the formation of AR. Exogenous IAA was found to increase the root IAA content and stimulate AR formation under vanillin stress, ultimately leading to an increase in the potato yield. This study provides valuable insights into potential strategies for the degradation of autotoxic substances and breeding of potato cultivars with enhanced resistance to autotoxicity.
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Affiliation(s)
- Haiyan Ma
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, College of Agronomy, Sichuan Agricultural University, Chengdu, Sichuan 611130, People's Republic of China
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu, Sichuan 611130, People's Republic of China
| | - Junji Li
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, College of Agronomy, Sichuan Agricultural University, Chengdu, Sichuan 611130, People's Republic of China
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu, Sichuan 611130, People's Republic of China
| | - Aihua Luo
- Potato Research Institute of Gansu Academy of Agricultural Sciences, Lanzhou, Gansu 730070, People's Republic of China
| | - Heping Lv
- Potato Research Institute of Gansu Academy of Agricultural Sciences, Lanzhou, Gansu 730070, People's Republic of China
| | - Zhitong Ren
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, College of Agronomy, Sichuan Agricultural University, Chengdu, Sichuan 611130, People's Republic of China
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu, Sichuan 611130, People's Republic of China
| | - Hongkun Yang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, College of Agronomy, Sichuan Agricultural University, Chengdu, Sichuan 611130, People's Republic of China
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu, Sichuan 611130, People's Republic of China
| | - Xiaoting Fang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, College of Agronomy, Sichuan Agricultural University, Chengdu, Sichuan 611130, People's Republic of China
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu, Sichuan 611130, People's Republic of China
| | - Muhammad Amir Shahzad
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, College of Agronomy, Sichuan Agricultural University, Chengdu, Sichuan 611130, People's Republic of China
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu, Sichuan 611130, People's Republic of China
| | - Huijuan Qu
- Institute of Biotechnology and Nuclear Technology, Sichuan Academy of Agricultural Sciences, Chengdu, Sichuan 610066, People's Republic of China
| | - Kaiqin Zhang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, College of Agronomy, Sichuan Agricultural University, Chengdu, Sichuan 611130, People's Republic of China
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu, Sichuan 611130, People's Republic of China
| | - Qiang Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, College of Agronomy, Sichuan Agricultural University, Chengdu, Sichuan 611130, People's Republic of China
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu, Sichuan 611130, People's Republic of China
| | - Shunlin Zheng
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, College of Agronomy, Sichuan Agricultural University, Chengdu, Sichuan 611130, People's Republic of China
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu, Sichuan 611130, People's Republic of China
- Key Laboratory of Tuber Crop Genetics and Breeding, Ministry of Agriculture, Chengdu Joyson Agricultural Technology Company, Limited, Xindu, Sichuan 610500, People's Republic of China
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16
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Ricci A, Polverini E, Bruno S, Dramis L, Ceresini D, Scarano A, Diaz-Sala C. New Insights into the Enhancement of Adventitious Root Formation Using N,N'-Bis(2,3-methylenedioxyphenyl)urea. PLANTS (BASEL, SWITZERLAND) 2023; 12:3610. [PMID: 37896073 PMCID: PMC10610038 DOI: 10.3390/plants12203610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 10/11/2023] [Accepted: 10/13/2023] [Indexed: 10/29/2023]
Abstract
Adventitious rooting is a process of postembryonic organogenesis strongly affected by endogenous and exogenous factors. Although adventitious rooting has been exploited in vegetative propagation programs for many plant species, it is a bottleneck for vegetative multiplication of difficult-to-root species, such as many woody species. The purpose of this research was to understand how N,N'-bis-(2,3-methylenedioxyphenyl)urea could exert its already reported adventitious rooting adjuvant activity, starting from the widely accepted knowledge that adventitious rooting is a hormonally tuned progressive process. Here, by using specific in vitro bioassays, histological analyses, molecular docking simulations and in vitro enzymatic bioassays, we have demonstrated that this urea derivative does not interfere with polar auxin transport; it inhibits cytokinin oxidase/dehydrogenase (CKX); and, possibly, it interacts with the apoplastic portion of the auxin receptor ABP1. As a consequence of this dual binding capacity, the lifespan of endogenous cytokinins could be locally increased and, at the same time, auxin signaling could be favored. This combination of effects could lead to a cell fate transition, which, in turn, could result in increased adventitious rooting.
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Affiliation(s)
- Ada Ricci
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 11/A, 43124 Parma, Italy
| | - Eugenia Polverini
- Dipartimento di Scienze Matematiche, Fisiche e Informatiche, Università di Parma, Parco Area delle Scienze 7/A, 43124 Parma, Italy
| | - Stefano Bruno
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università di Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy
| | - Lucia Dramis
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 11/A, 43124 Parma, Italy
| | - Daniela Ceresini
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 11/A, 43124 Parma, Italy
| | - Antonio Scarano
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università di Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy
| | - Carmen Diaz-Sala
- Departamento de Ciencias de la Vida, Universidad de Alcalá, 28871 Alcalá de Henares, Spain
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17
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Ahkami AH. Systems biology of root development in Populus: Review and perspectives. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2023; 335:111818. [PMID: 37567482 DOI: 10.1016/j.plantsci.2023.111818] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 06/28/2023] [Accepted: 08/04/2023] [Indexed: 08/13/2023]
Abstract
The root system of plants consists of primary, lateral, and adventitious roots (ARs) (aka shoot-born roots). ARs arise from stem- or leaf-derived cells during post-embryonic development. Adventitious root development (ARD) through stem cuttings is the first requirement for successful establishment and growth of planted trees; however, the details of the molecular mechanisms underlying ARD are poorly understood. This knowledge is important to both basic plant biology and because of its necessary role in the successful propagation of superior cultivars of commercial woody bioenergy crops, like poplar. In this review article, the molecular mechanisms that control both endogenous (auxin) and environmentally (nutrients and microbes) regulated ARD and how these systems interact to control the rooting efficiency of poplar trees are described. Then, potential future studies in employing integrated systems biology approaches at cellular resolutions are proposed to more precisely identify the molecular mechanisms that cause AR. Using genetic transformation and genome editing approaches, this information can be used for improving ARD in economically important plants for which clonal propagation is a requirement.
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Affiliation(s)
- Amir H Ahkami
- Environmental Molecular Sciences Laboratory (EMSL), Pacific Northwest National Laboratory (PNNL), Richland, WA, USA.
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18
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Wen Z, Chen Z, Liu X, Sun J, Zhang F, Zhang M, Dong C. 24-Epibrassinolide Facilitates Adventitious Root Formation by Coordinating Cell-Wall Polyamine Oxidase- and Plasma Membrane Respiratory Burst Oxidase Homologue-Derived Reactive Oxygen Species in Capsicum annuum L. Antioxidants (Basel) 2023; 12:1451. [PMID: 37507989 PMCID: PMC10376213 DOI: 10.3390/antiox12071451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 07/12/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023] Open
Abstract
Adventitious root (AR) formation is a critical process in cutting propagation of horticultural plants. Brassinosteroids (BRs) have been shown to regulate AR formation in several plant species; however, little is known about their exact effects on pepper AR formation, and the downstream signaling of BRs also remains elusive. In this study, we showed that treatment of 24-Epibrassinolide (EBL, an active BR) at the concentrations of 20-100 nM promoted AR formation in pepper (Capsicum annuum). Furthermore, we investigated the roles of apoplastic reactive oxygen species (ROS), including hydrogen peroxide (H2O2) and superoxide radical (O2•-), in EBL-promoted AR formation, by using physiological, histochemical, bioinformatic, and biochemical approaches. EBL promoted AR formation by modulating cell-wall-located polyamine oxidase (PAO)-dependent H2O2 production and respiratory burst oxidase homologue (RBOH)-dependent O2•- production, respectively. Screening of CaPAO and CaRBOH gene families combined with gene expression analysis suggested that EBL-promoted AR formation correlated with the upregulation of CaPAO1, CaRBOH2, CaRBOH5, and CaRBOH6 in the AR zone. Transient expression analysis confirmed that CaPAO1 was able to produce H2O2, and CaRBOH2, CaRBOH5, and CaRBOH6 were capable of producing O2•-. The silencing of CaPAO1, CaRBOH2, CaRBOH5, and CaRBOH6 in pepper decreased the ROS accumulation and abolished the EBL-induced AR formation. Overall, these results uncover one of the regulatory pathways for BR-regulated AR formation, and extend our knowledge of the functions of BRs and of the BRs-ROS crosstalk in plant development.
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Affiliation(s)
- Zhengyang Wen
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Zhifeng Chen
- College of Biology and Agricultural Technology, Zunyi Normal College, Zunyi 563006, China
| | - Xinyan Liu
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Jingbo Sun
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Feng Zhang
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Mengxia Zhang
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Chunjuan Dong
- College of Biology and Agricultural Technology, Zunyi Normal College, Zunyi 563006, China
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19
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Winkelmann T, Bringmann G, Herwig A, Hedrich R. Carnivory on demand: phosphorus deficiency induces glandular leaves in the African liana Triphyophyllum peltatum. THE NEW PHYTOLOGIST 2023. [PMID: 37191044 DOI: 10.1111/nph.18960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 04/17/2023] [Indexed: 05/17/2023]
Abstract
Triphyophyllum peltatum, a rare tropical African liana, is unique in its facultative carnivory. The trigger for carnivory is yet unknown, mainly because the plant is difficult to propagate and cultivate. This study aimed at identifying the conditions that result in the formation of carnivorous leaves. In vitro shoots were subjected to abiotic stressors in general and deficiencies of the major nutrients nitrogen, potassium and phosphorus in particular, to trigger carnivorous leaves' development. Adventitious root formation was improved to allow verification of the trigger in glasshouse-grown plants. Among all the stressors tested, only under phosphorus deficiency, the formation of carnivorous leaves was observed. These glandular leaves fully resembled those found under natural growing conditions including the secretion of sticky liquid by mature capture organs. To generate plants for glasshouse experiments, a pulse of 55.4 μM α-naphthaleneacetic acid was essential to achieve 90% in vitro rooting. This plant material facilitated the confirmation of phosphorus starvation to be essential and sufficient for carnivory induction, also under ex vitro conditions. Having established the cultivation of T. peltatum and the induction of carnivory, future gene expression profiles from phosphorus starvation-induced leaves will provide important insight to the molecular mechanism of carnivory on demand.
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Affiliation(s)
- Traud Winkelmann
- Institute of Horticultural Production Systems, Leibniz Universität Hannover, Herrenhäuser Str. 2, 30419, Hannover, Germany
| | - Gerhard Bringmann
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Anne Herwig
- Institute of Soil Science, Leibniz Universität Hannover, Herrenhäuser Str. 2, 30419, Hannover, Germany
| | - Rainer Hedrich
- Department of Molecular Plant-Physiology and Biophysics - Botany I, University of Würzburg, Biocentre, Julius-von-Sachs-Institute for Biosciences, Julius-von-Sachs-Platz 2, 97082, Würzburg, Germany
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20
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Kong L, Wang Y, Li M, Cai C, Li L, Wang R, Shen W. A methane-cGMP module positively influences adventitious rooting. PLANT CELL REPORTS 2023:10.1007/s00299-023-03019-4. [PMID: 37084115 DOI: 10.1007/s00299-023-03019-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 04/11/2023] [Indexed: 05/03/2023]
Abstract
KEY MESSAGE Endogenous cGMP operates downstream of CH4 control of adventitious rooting, following by the regulation in the expression of cell cycle regulatory and auxin signaling-related genes. Methane (CH4) is a natural product from plants and microorganisms. Although exogenously applied CH4 and cyclic guanosine monophosphate (cGMP) are separately confirmed to be involved in the control of adventitious root (AR) formation, the possible interaction still remains elusive. Here, we observed that exogenous CH4 not only rapidly promoted cGMP synthesis through increasing the activity of guanosine cyclase (GC), but also induced cucumber AR development. These responses were obviously impaired by the removal of endogenous cGMP with two GC inhibitors. Anatomical evidence showed that the emerged stage (V) among AR primordia development might be the main target of CH4-cGMP module. Genetic evidence revealed that the transgenic Arabidopsis that overexpressed the methyl-coenzyme M reductase gene (MtMCR) from Methanobacterium thermoautotrophicum not only increased-cGMP production, but also resulted in a pronounced AR development compared to wild-type (WT), especially with the addition of CH4 or the cell-permeable cGMP derivative 8-Br-cGMP. qPCR analysis confirmed that some marker genes associated with cell cycle regulatory and auxin signaling were closely related to the brand-new CH4-cGMP module in AR development. Overall, our results clearly revealed an important function of cGMP in CH4 governing AR formation by modulating auxin-dependent pathway and cell cycle regulation.
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Affiliation(s)
- Lingshuai Kong
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yueqiao Wang
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Min Li
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Chenxu Cai
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Longna Li
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Ren Wang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, 210014, China
| | - Wenbiao Shen
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China.
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21
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Ai Y, Qian X, Wang X, Chen Y, Zhang T, Chao Y, Zhao Y. Uncovering early transcriptional regulation during adventitious root formation in Medicago sativa. BMC PLANT BIOLOGY 2023; 23:176. [PMID: 37016323 PMCID: PMC10074720 DOI: 10.1186/s12870-023-04168-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 03/14/2023] [Indexed: 06/19/2023]
Abstract
BACKGROUND Alfalfa (Medicago sativa L.) as an important legume plant can quickly produce adventitious roots (ARs) to form new plants by cutting. But the regulatory mechanism of AR formation in alfalfa remains unclear. RESULTS To better understand the rooting process of alfalfa cuttings, plant materials from four stages, including initial separation stage (C stage), induction stage (Y stage), AR primordium formation stage (P stage) and AR maturation stage (S stage) were collected and used for RNA-Seq. Meanwhile, three candidate genes (SAUR, VAN3 and EGLC) were selected to explore their roles in AR formation. The numbers of differentially expressed genes (DEGs) of Y-vs-C (9,724) and P-vs-Y groups (6,836) were larger than that of S-vs-P group (150), indicating highly active in the early AR formation during the complicated development process. Pathways related to cell wall and sugar metabolism, root development, cell cycle, stem cell, and protease were identified, indicating that these genes were involved in AR production. A large number of hormone-related genes associated with the formation of alfalfa ARs have also been identified, in which auxin, ABA and brassinosteroids are thought to play key regulatory roles. Comparing with TF database, it was found that AP2/ERF-ERF, bHLH, WRKY, NAC, MYB, C2H2, bZIP, GRAS played a major regulatory role in the production of ARs of alfalfa. Furthermore, three identified genes showed significant promotion effect on AR formation. CONCLUSIONS Stimulation of stem basal cells in alfalfa by cutting induced AR production through the regulation of various hormones, transcription factors and kinases. This study provides new insights of AR formation in alfalfa and enriches gene resources in crop planting and cultivation.
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Affiliation(s)
- Ye Ai
- School of Grassland Science, Beijing Forestry University, Beijing, 100083, China
| | - Xu Qian
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaoqian Wang
- Beijing Tide Pharmaceutical Co., Ltd, Beijing, 100176, China
| | - Yinglong Chen
- The UWA Institute of Agriculture, and UWA School of Agriculture and Environment, The University of Western Australia, Perth, WA, 6001, Australia
| | - Tiejun Zhang
- School of Grassland Science, Beijing Forestry University, Beijing, 100083, China
| | - Yuehui Chao
- School of Grassland Science, Beijing Forestry University, Beijing, 100083, China.
| | - Yan Zhao
- College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, Key Laboratory of Grassland Resources (IMAU), Ministry of Education, Hohhot, 010021, China.
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22
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Dopamine Inhibits Arabidopsis Growth through Increased Oxidative Stress and Auxin Activity. STRESSES 2023. [DOI: 10.3390/stresses3010026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
Like some bacterial species and all animals, plants synthesize dopamine and react to its exogenous applications. Despite dopamine’s widespread presence and activity in plants, its role in plant physiology is still poorly understood. Using targeted experimentation informed by the transcriptomic response to dopamine exposure, we identify three major effects of dopamine. First, we show that dopamine causes hypersensitivity to auxin indole-3-acetic acid by enhancing auxin activity. Second, we show that dopamine increases oxidative stress, which can be mitigated with glutathione. Third, we find that dopamine downregulates iron uptake mechanisms, leading to a decreased iron content—a response possibly aimed at reducing DA-induced oxidative stress. Finally, we show that dopamine-induced auxin sensitivity is downstream of glutathione biosynthesis, indicating that the auxin response is likely a consequence of DA-induced oxidative stress. Collectively, our results show that exogenous dopamine increases oxidative stress, which inhibits growth both directly and indirectly by promoting glutathione-biosynthesis-dependent auxin hypersensitivity.
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23
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Modrego A, Pasternak T, Omary M, Albacete A, Cano A, Pérez-Pérez JM, Efroni I. Mapping of the Classical Mutation rosette Highlights a Role for Calcium in Wound-Induced Rooting. PLANT & CELL PHYSIOLOGY 2023; 64:152-164. [PMID: 36398993 DOI: 10.1093/pcp/pcac163] [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: 01/10/2022] [Revised: 11/14/2022] [Accepted: 11/17/2022] [Indexed: 06/16/2023]
Abstract
Removal of the root system induces the formation of new roots from the remaining shoot. This process is primarily controlled by the phytohormone auxin, which interacts with other signals in a yet unresolved manner. Here, we study the classical tomato mutation rosette (ro), which lacks shoot-borne roots. ro mutants were severely inhibited in formation of wound-induced roots (WiRs) and had reduced auxin transport rates. We mapped ro to the tomato ortholog of the Arabidopsis thaliana BIG and the mammalians UBR4/p600. RO/BIG is a large protein of unknown biochemical function. In A. thaliana, BIG was implicated in regulating auxin transport and calcium homeostasis. We show that exogenous calcium inhibits WiR formation in tomato and A. thaliana ro/big mutants. Exogenous calcium antagonized the root-promoting effects of the auxin indole-3-acetic-acid but not of 2,4-dichlorophenoxyacetic acid, an auxin analog that is not recognized by the polar transport machinery, and accumulation of the auxin transporter PIN-FORMED1 (PIN1) was sensitive to calcium levels in the ro/big mutants. Consistent with a role for calcium in mediating auxin transport, both ro/big mutants and calcium-treated wild-type plants were hypersensitive to treatment with polar auxin transport inhibitors. Subcellular localization of BIG suggests that, like its mammalian ortholog, it is associated with the endoplasmic reticulum. Analysis of subcellular morphology revealed that ro/big mutants exhibited disruption in cytoplasmic streaming. We suggest that RO/BIG maintains auxin flow by stabilizing PIN membrane localization, possibly by attenuating the inhibitory effect of Ca2+ on cytoplasmic streaming.
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Affiliation(s)
- Abelardo Modrego
- The Institute of Plant Sciences and Genetics in Agriculture, Faculty of Agriculture, The Hebrew University, Rehovot 7610001, Israel
| | - Taras Pasternak
- Instituto de Bioingeniería, Universidad Miguel Hernández, Elche 03202, Spain
| | - Moutasem Omary
- The Institute of Plant Sciences and Genetics in Agriculture, Faculty of Agriculture, The Hebrew University, Rehovot 7610001, Israel
| | - Alfonso Albacete
- Departamento de Nutrición Vegetal, CEBAS-CSIC, Murcia 30100, Spain
| | - Antonio Cano
- Departamento de Biología Vegetal (Fisiología Vegetal), Universidad de Murcia, Murcia 30100, Spain
| | | | - Idan Efroni
- The Institute of Plant Sciences and Genetics in Agriculture, Faculty of Agriculture, The Hebrew University, Rehovot 7610001, Israel
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24
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Fan X, Li Y, Deng CH, Wang S, Wang Z, Wang Y, Qiu C, Xu X, Han Z, Li W. Strigolactone regulates adventitious root formation via the MdSMXL7-MdWRKY6-MdBRC1 signaling cascade in apple. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023; 113:772-786. [PMID: 36575587 DOI: 10.1111/tpj.16082] [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: 09/14/2022] [Revised: 12/05/2022] [Accepted: 12/16/2022] [Indexed: 06/17/2023]
Abstract
Propagation through stem cuttings is a popular method worldwide for species such as fruit tree rootstocks and forest trees. Adventitious root (AR) formation from stem cuttings is crucial for effective and successful clonal propagation of apple rootstocks. Strigolactones (SLs) are newly identified hormones involved in AR formation. However, the regulatory mechanisms underpinning this process remain elusive. In the present study, weighted gene co-expression network analysis, as well as rooting assays using stable transgenic apple materials, revealed that MdBRC1 served as a key gene in the inhibition of AR formation by SLs. We have demonstrated that MdSMXL7 and MdWRKY6 synergistically regulated MdBRC1 expression, depending on the interactions of MdSMXL7 and MdWRKY6 at the protein level downstream of SLs as well as the direct promoter binding on MdBRC1 by MdWRKY6. Furthermore, biochemical studies and genetic analysis revealed that MdBRC1 inhibited AR formation by triggering the expression of MdGH3.1 in a transcriptional activation pathway. Finally, the present study not only proposes a component, MdWRKY6, that enables MdSMXL7 to regulate MdBRC1 during the process of SL-controlled AR formation in apple, but also provides prospective target genes to enhance AR formation capacity using CRISPR (i.e. clustered regularly interspaced short palindromic repeats) technology, particularly in woody plants.
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Affiliation(s)
- Xingqiang Fan
- College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Yuqi Li
- College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Cecilia H Deng
- The New Zealand Institute for Plant and Food Research Limited, 120 Mt Albert Road, Mt Albert, Auckland, 1025, New Zealand
| | - Shiyao Wang
- College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Zijun Wang
- College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Yi Wang
- College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Changpeng Qiu
- College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Xuefeng Xu
- College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Zhenhai Han
- College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Wei Li
- College of Horticulture, China Agricultural University, Beijing, 100193, China
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25
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Analysis of oxidase activity and transcriptomic changes related to cutting propagation of hybrid larch. Sci Rep 2023; 13:1354. [PMID: 36693928 PMCID: PMC9873909 DOI: 10.1038/s41598-023-27779-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: 05/15/2022] [Accepted: 01/09/2023] [Indexed: 01/26/2023] Open
Abstract
Hybrid larch is the main timber and afforestation tree species in Northeast China. To solve the problem of rooting difficulties in larch cutting propagation, enzyme activity determination and transcriptome sequencing were carried out on the rooting tissues at five timepoints after cutting. peroxidase (POD), indole acetic acid oxidase (IAAO) and polyphenol oxidase (PPO) play important roles in the larch rooting process after cutting. A total of 101.20 Gb of clean data was obtained by transcriptome sequencing, and 43,246 unigenes were obtained after further screening and assembly. According to GO analysis and KEGG enrichment analysis, we think that plant hormones play an important role in the rooting process of larch stem cuttings. in the plant hormone signal transduction pathway, a larch gene c141104.graph_c0 that is homologous to the Arabidopsis AUX1 was found to be significantly up-regulated. We suggest that AUX1 may promote IAA transport in larch, thus affecting adventitious root development. According to the results of POD, PPO IAAO indexes and GO analysis, we think s1 and s2 periods may be important periods in the rooting process of larch stem cuttings, so we built a gene regulatory network, a total of 14genes, including LBD, NAC, AP2/ERF, bHLH and etc., may be important in different stages of cutting propagation. As the rooting rate after cutting inhibits the development of larch clone propagation, identifying the genes that regulate rooting could help us to preliminarily understand the molecular mechanism of adventitious root formation and select a better treatment method for cutting propagation.
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26
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Wang Z, Shi Q, Chen P, Sun F, Creech D, Lu Z, Yin Y, Yu C. Grafting Causes Physiological Changes and Promotes Adventitious Root Formation in Rejuvenated Soft Shoots of Taxodium hybrid 'Zhongshanshan'. PLANTS (BASEL, SWITZERLAND) 2023; 12:201. [PMID: 36616329 PMCID: PMC9823487 DOI: 10.3390/plants12010201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 12/16/2022] [Accepted: 12/20/2022] [Indexed: 06/17/2023]
Abstract
Taxodium hybrid 'Zhongshanshan' has been widely used as a timber tree in river network areas and coastal regions and is mainly propagated by cuttings. However, when trees age, their capacity to form adventitious roots becomes weaker. We successfully enhanced the rooting ability of shoots in T. hybrid 'Zhongshanshan 302' by their rejuvenation based on grafting. We recorded temporal variation in endogenous auxin, abscisic acid (ABA), gibberellins (GAs), trans-zeatin-riboside (TZR), soluble sugar and H2O2 after root induction. Auxin, soluble sugars and H2O2 levels were higher in rejuvenated shoots than in mature shoots, whereas the opposite was true for ABA and GAs. Notably, indole-3-acetic acid (IAA) and GA3 presented higher contents with more obvious differences in T. hybrid 'Zhongshanshan 302' rejuvenated shoots vs. mature shoots compared with other kinds of auxin and GAs. The evident improvement in the rooting ability of rejuvenated shoots after grafting likely resulted from the differential regulation of plant hormones, carbohydrates and redox signaling. In addition to the physiological basis of improved rooting ability by grafting, this study provided a theoretical basis for the optimization of subsequent propagation techniques in T. hybrid 'Zhongshanshan' and potentially other Taxodium spp.
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Affiliation(s)
- Zhiquan Wang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Nanjing 210014, China
| | - Qin Shi
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Nanjing 210014, China
| | - Peipei Chen
- Jingjiang Greening Engineering Co., Ltd., Jingjiang 214500, China
| | - Feng Sun
- Jingjiang Greening Engineering Co., Ltd., Jingjiang 214500, China
| | - David Creech
- College of Forestry and Agriculture, Stephen F. Austin State University, Nacogdoches, TX 75962, USA
| | - Zhiguo Lu
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Nanjing 210014, China
| | - Yunlong Yin
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Nanjing 210014, China
| | - Chaoguang Yu
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Nanjing 210014, China
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27
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Lalthafamkimi L, Bhau BS, Kumar S, Mukhia S, Kumar R, Banik D, Bhattacharyya P. Indirect organogenesis-mediated high frequency conversion of non-embryonic synthetic seeds, essential oil profiling and antibacterial activity in genetically stable plants of Patchouli. 3 Biotech 2022; 12:349. [PMID: 36386565 PMCID: PMC9663788 DOI: 10.1007/s13205-022-03302-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 08/10/2022] [Indexed: 11/16/2022] Open
Abstract
Patchouli is a prized tropical medicinal herb with broad-spectrum therapeutic importance. The present research work describes development of an efficient callus-mediated plant regeneration protocol along with associated germplasm portability system (via alginate-encapsulation). Using 1.5 mg/l α-naphthalene acetic acid (NAA) and 1.0 mg/l 2, 4-dichlorophenoxy acetic acid (2, 4-D), highly proliferative friable calli were produced that subsequently underwent organogenesis in combinatorial cytokinin treatment to yield multiple shoot clusters. The highest frequency of shoot formation was achieved using 1.5 mg/l NAA with 1.5 mg/l 6-benzylaminopurine (BAP) in Murashige and Skoog (MS) medium. In vitro-derived shoot tips were encapsulated with 3% sodium alginate and 100 mM CaCl2 solution. The encapsulated beads were germinated in MS media with various concentrations of polyamines, where the highest regeneration frequency was observed with 1.5 mg/l spermidine. The regenerated shoots were rooted in basal MS medium and were successfully acclimatized with 96% survival rate. Genetic homogeneity amongst the regenerated plantlets was validated using Start Codon Targeted polymorphism (SCoT) and CAAT box-derived polymorphism (CBDP) ascertaining a high degree of clonal fidelity. The essential oil (EO) profiling of the donor plant and the in vitro-derived plantlets revealed identical composition. Furthermore, the antibacterial activities of various tissue extracts and extracted EOs were evaluated against the opportunistic pathogens viz. Klebsiella pneumoniae (MTCC 109), Salmonella typhii (MTCC 733), Micrococcus luteus (MTCC 2470) and Staphylococcus aureus (MTCC 96). The minimum inhibitory concentration (MIC) ranged from 0.31 to 5.0 mg/ml and 2.5 to 5.0 mg/ml against Gram-positive and Gram-negative bacteria, respectively. Eventually, the present research provides a holistic insight into the rapid regeneration of quality planting material as well as pharmacological bioprospection of patchouli along with the scope of further qualitative improvement via genetic transformation. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-022-03302-3.
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Affiliation(s)
- Lucy Lalthafamkimi
- Agrotechnology and Rural Development Division (ARDD), CSIR-North East Institute of Science and Technology, Jorhat, Assam 785006 India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002 India
| | - Brijmohan Singh Bhau
- Agrotechnology and Rural Development Division (ARDD), CSIR-North East Institute of Science and Technology, Jorhat, Assam 785006 India
- Present Address: Department of Botany, Central University of Jammu, Rahya-Suchani (Bagla), District - Samba, Jammu, Jammu & Kashmir 181143 India
| | - Sanjay Kumar
- Biotechnology Division, Council of Scientific and Industrial Research-Institute of Himalayan Bioresource Technology, P.O. Box 6, Palampur, Himachal Pradesh 176061 India
| | - Srijana Mukhia
- Biotechnology Division, Council of Scientific and Industrial Research-Institute of Himalayan Bioresource Technology, P.O. Box 6, Palampur, Himachal Pradesh 176061 India
- Department of Microbiology, Guru Nanak Dev University (GNDU), Amritsar, Punjab 143005 India
| | - Rakshak Kumar
- Biotechnology Division, Council of Scientific and Industrial Research-Institute of Himalayan Bioresource Technology, P.O. Box 6, Palampur, Himachal Pradesh 176061 India
| | - Dipanwita Banik
- Agrotechnology and Rural Development Division (ARDD), CSIR-North East Institute of Science and Technology, Jorhat, Assam 785006 India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002 India
| | - Paromik Bhattacharyya
- Biotechnology Division, Council of Scientific and Industrial Research-Institute of Himalayan Bioresource Technology, P.O. Box 6, Palampur, Himachal Pradesh 176061 India
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Ayala PG, Acevedo RM, Luna CV, Rivarola M, Acuña C, Marcucci Poltri S, González AM, Sansberro PA. Transcriptome Dynamics of Rooting Zone and Leaves during In Vitro Adventitious Root Formation in Eucalyptus nitens. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11233301. [PMID: 36501341 PMCID: PMC9740172 DOI: 10.3390/plants11233301] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/23/2022] [Accepted: 11/25/2022] [Indexed: 05/13/2023]
Abstract
Wood properties and agronomic traits associated with fast growth and frost tolerance make Eucalyptus nitens a valuable forest alternative. However, the rapid age-related decline in the adventitious root (AR) formation (herein, meaning induction, initiation, and expression stages) limits its propagation. We analyzed transcriptomic profile variation in leaves and stem bases during AR induction of microcuttings to elucidate the molecular mechanisms involved in AR formation. In addition, we quantified expressions of candidate genes associated with recalcitrance. We delimited the ontogenic phases of root formation using histological techniques and Scarecrow and Short-Root expression quantification for RNA sequencing sample collection. We quantified the gene expressions associated with root meristem formation, auxin biosynthesis, perception, signaling, conjugation, and cytokinin signaling in shoots harvested from 2- to 36-month-old plants. After IBA treatment, 702 transcripts changed their expressions. Several were involved in hormone homeostasis and the signaling pathways that determine cell dedifferentiation, leading to root meristem formation. In part, the age-related decline in the rooting capacity is attributable to the increase in the ARR1 gene expression, which negatively affects auxin homeostasis. The analysis of the transcriptomic variation in the leaves and rooting zones provided profuse information: (1) To elucidate the auxin metabolism; (2) to understand the hormonal and signaling processes involved; (3) to collect data associated with their recalcitrance.
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Affiliation(s)
- Paula G. Ayala
- Laboratorio de Biotecnología Aplicada y Genómica Funcional, Instituto de Botánica del Nordeste (IBONE-CONICET), Facultad de Ciencias Agrarias, Universidad Nacional del Nordeste, Sgto. Cabral 2131, Corrientes W3402BKG, Argentina
- Mejoramiento Genético Forestal, INTA-EEA Concordia, CC 34, Concordia E3200AQK, Argentina
| | - Raúl M. Acevedo
- Laboratorio de Biotecnología Aplicada y Genómica Funcional, Instituto de Botánica del Nordeste (IBONE-CONICET), Facultad de Ciencias Agrarias, Universidad Nacional del Nordeste, Sgto. Cabral 2131, Corrientes W3402BKG, Argentina
| | - Claudia V. Luna
- Laboratorio de Biotecnología Aplicada y Genómica Funcional, Instituto de Botánica del Nordeste (IBONE-CONICET), Facultad de Ciencias Agrarias, Universidad Nacional del Nordeste, Sgto. Cabral 2131, Corrientes W3402BKG, Argentina
| | - Máximo Rivarola
- Instituto de Biotecnología, CICVyA (INTA), Nicolas Repetto y de los Reseros s/n, Hurlingham, Buenos Aires B1686IGC, Argentina
| | - Cintia Acuña
- Instituto de Biotecnología, CICVyA (INTA), Nicolas Repetto y de los Reseros s/n, Hurlingham, Buenos Aires B1686IGC, Argentina
| | - Susana Marcucci Poltri
- Instituto de Biotecnología, CICVyA (INTA), Nicolas Repetto y de los Reseros s/n, Hurlingham, Buenos Aires B1686IGC, Argentina
| | - Ana M. González
- Laboratorio de Biotecnología Aplicada y Genómica Funcional, Instituto de Botánica del Nordeste (IBONE-CONICET), Facultad de Ciencias Agrarias, Universidad Nacional del Nordeste, Sgto. Cabral 2131, Corrientes W3402BKG, Argentina
| | - Pedro A. Sansberro
- Laboratorio de Biotecnología Aplicada y Genómica Funcional, Instituto de Botánica del Nordeste (IBONE-CONICET), Facultad de Ciencias Agrarias, Universidad Nacional del Nordeste, Sgto. Cabral 2131, Corrientes W3402BKG, Argentina
- Correspondence: or ; Tel.: +54-3794427589
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Vilasboa J, Da Costa CT, Fett-Neto AG. Environmental Modulation of Mini-Clonal Gardens for Cutting Production and Propagation of Hard- and Easy-to-Root Eucalyptus spp. PLANTS (BASEL, SWITZERLAND) 2022; 11:3281. [PMID: 36501321 PMCID: PMC9740115 DOI: 10.3390/plants11233281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/22/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
Clonal Eucalyptus propagation is essential for various industry sectors. It requires cuttings to successfully develop adventitious roots (ARs). Environmental conditions are influential on AR development and may be altered to modulate the productivity of hard-to-root clones. The current knowledge gap in research on the physiological patterns underlying commercial-scale propagation results hinders the design of novel strategies. This study aimed to identify patterns of variation in AR-relevant parameters in contrasting seasons and species with distinct rooting performances. E. dunnii and E. ×urograndis (hard- (hardR) and easy-to-root (easyR), respectively) mini-stumps were subjected to light modulation treatments and to mini-tunnel use (MT) for a year. The treatment impact on the branching and rooting rates was recorded. The carbohydrate content, AR-related gene expression, and mineral nutrition profiles of cuttings from the control (Ctrl) and treated mini-stumps were analyzed. Light treatments were often detrimental to overall productivity, while MTs had a positive effect during summer, when it altered the cutting leaf nutrient profiles. Species and seasonality played large roles in all the assessed parameters. E. ×urograndis was particularly susceptible to seasonality, and its overall superior performance correlated with changes in its gene expression profile from excision to AR formation. These patterns indicate fundamental differences between easyR and hardR clones that contribute to the design of data-driven management strategies aiming to enhance propagation protocols.
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Affiliation(s)
- Johnatan Vilasboa
- Plant Physiology Laboratory, Federal University of Rio Grande do Sul, Porto Alegre, RS 91501-970, Brazil
- Center for Biotechnology, Federal University of Rio Grande do Sul, Porto Alegre, RS 91501-970, Brazil
| | - Cibele T. Da Costa
- Plant Physiology Laboratory, Federal University of Rio Grande do Sul, Porto Alegre, RS 91501-970, Brazil
- Department of Botany, Federal University of Rio Grande do Sul, Porto Alegre, RS 91501-970, Brazil
| | - Arthur G. Fett-Neto
- Plant Physiology Laboratory, Federal University of Rio Grande do Sul, Porto Alegre, RS 91501-970, Brazil
- Center for Biotechnology, Federal University of Rio Grande do Sul, Porto Alegre, RS 91501-970, Brazil
- Department of Botany, Federal University of Rio Grande do Sul, Porto Alegre, RS 91501-970, Brazil
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Wang Y, Zhao H, Hu X, Zhang Y, Zhang Z, Zhang L, Li L, Hou L, Li M. Transcriptome and hormone Analyses reveal that melatonin promotes adventitious rooting in shaded cucumber hypocotyls. FRONTIERS IN PLANT SCIENCE 2022; 13:1059482. [PMID: 36518515 PMCID: PMC9742233 DOI: 10.3389/fpls.2022.1059482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Accepted: 11/11/2022] [Indexed: 06/17/2023]
Abstract
Melatonin, a multi-regulatory molecule, stimulates root generation and regulates many aspects of plant growth and developmental processes. To gain insight into the effects of melatonin on adventitious root (AR) formation, we use cucumber seedings subjected to one of three treatments: EW (hypocotyl exposed and irrigated with water), SW (hypocotyl shaded and irrigated with water) and SM (hypocotyl shaded and irrigated with 100 µM melatonin). Under shaded conditions, melatonin induced significant AR formation in the hypocotyl. To explore the mechanism of this melatonin-induced AR formation, we used transcriptome analysis to identify 1296 significant differentially expressed genes (DEGs). Comparing SM with SW, a total of 774 genes were upregulated and 522 genes were downregulated. The DEGs were classified among different metabolic pathways, especially those connected with the synthesis of secondary metabolites, with hormone signal transduction and with plant-pathogen interactions. Analyses indicate exogenous melatonin increased contents of endogenous auxin, jasmonic acid, salicylic acid, cytokinin and abscisic acid levels during AR formation. This study indicates melatonin promotes AR formation in cucumber seedings by regulating the expressions of genes related to hormone synthesis, signaling and cell wall formation, as well as by increasing the contents of auxin, cytokinin, jasmonic acid, salicylic acid and abscisic acid. This research elucidates the molecular mechanisms of melatonin's role in promoting AR formation in the hypocotyl of cucumber seedings under shaded conditions.
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Affiliation(s)
- Yuping Wang
- College of Horticulture, Shanxi Agricultural University, Taigu, Shanxi, China
- Experimental Teaching Center, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Hailiang Zhao
- College of Horticulture, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Xiaohui Hu
- College of Horticulture, Northwest A&F University, Yangling, China
| | - Yi Zhang
- College of Horticulture, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Zicun Zhang
- College of Horticulture, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Lu Zhang
- College of Horticulture, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Lixia Li
- College of Horticulture, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Leiping Hou
- College of Horticulture, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Meilan Li
- College of Horticulture, Shanxi Agricultural University, Taigu, Shanxi, China
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Qiao L, Zhang T, Yang H, Yang S, Wang J. Overexpression of a SHORT-ROOT transcriptional factor enhances the auxin mediated formation of adventitious roots and lateral roots in poplar trees. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2022; 323:111408. [PMID: 35932828 DOI: 10.1016/j.plantsci.2022.111408] [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: 06/01/2022] [Revised: 07/31/2022] [Accepted: 08/02/2022] [Indexed: 06/15/2023]
Abstract
SHORT-ROOT (SHR) defines root stem cells and maintains radial patterning, but its involvement in adventitious root (AR) formation has not been reported. In this study, we showed that PtSHR2 was transcriptionally upregulated by excision before the formation of AR and responded dynamically to auxin. PtSHR2 overexpression (SHR2BOE) in hybrid poplars resulted in an increased number of ARs with an initial delay. Despite a lower endogenous content in the stems than in wild-type plants, indole-3-acetic acid (IAA) content at the SHR2BOE basal stem increased rapidly after cutting and reached a higher maximum than in wild-type plants, which was accompanied by a more sustained and stronger induction of AR formation marker genes. In addition, the higher auxin content in SHR2BOE ARs resulted in more and longer lateral roots (LRs). Application of auxin abolished the early delay in the formation of AR and largely other AR phenotypes of SHR2BOE plants, whereas the polar auxin transport inhibitor N-1-naphthylphthalamic acid completely inhibited both AR and LR abnormalities. Since the enhanced rooting ability of SHR2BOE stem cuttings in hydroponics was clearly confirmed, our results suggest a novel role of poplar SHR2 as a positive regulator during the organogenesis of AR and LR by affecting local auxin homeostasis.
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Affiliation(s)
- Linxiang Qiao
- School of Environmental Science and Engineering, Tianjin University, Weijin Rd. 92, Nankai District, Tianjin 300072, China..
| | - Tianjiao Zhang
- School of Environmental Science and Engineering, Tianjin University, Weijin Rd. 92, Nankai District, Tianjin 300072, China..
| | - Heyu Yang
- School of Environmental Science and Engineering, Tianjin University, Weijin Rd. 92, Nankai District, Tianjin 300072, China..
| | - Shaohui Yang
- School of Environmental Science and Engineering, Tianjin University, Weijin Rd. 92, Nankai District, Tianjin 300072, China..
| | - Jiehua Wang
- School of Environmental Science and Engineering, Tianjin University, Weijin Rd. 92, Nankai District, Tianjin 300072, China..
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Morales-Orellana RJ, Winkelmann T, Bettin A, Rath T. Stimulation of adventitious root formation by laser wounding in rose cuttings: A matter of energy and pattern. FRONTIERS IN PLANT SCIENCE 2022; 13:1009085. [PMID: 36247617 PMCID: PMC9557736 DOI: 10.3389/fpls.2022.1009085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 09/09/2022] [Indexed: 06/16/2023]
Abstract
Adventitious root (AR) formation is the basis of vegetative propagation in rose, be it via stem cuttings or via stenting. During this process, wounding plays a pivotal role since cell reprogramming takes place at the tissue adjacent to the wound. We investigated the effects of wounding on AR formation on leafy single-node stem cuttings of the rose rootstock R. canina 'Pfänder' (codes R02-3 and R02-6) and the cut rose cultivar Rosa 'Tan09283' (Registration name 'Beluga'). Laser wounding treatments were based on the assisted removal of tissue layers located in the bark. The positioning of wounding was studied based on two marking directions: along the cutting base (strip pattern) and around the cutting base (ring pattern). Additionally, the effects of external supply of indole-butyric acid (IBA 1 mg L-1) on rooting were analyzed. Results showed that in order to remove specific tissue layers, the calculation of the laser energy density (J cm-2) in terms of cutting diameter was necessary. Interestingly, the application of energy densities from 2.5 J cm-2 up to approximately 8.5 J cm-2 were sufficient to expose the tissue layers of epidermis up to regions of phloem. Regarding AR formation for R. canina 'Pfänder', characterized by a low rooting response, an increase in the rooting percentage was registered when the laser treatment eliminated the tissue up to phloem proximities. Analysis of the nodal position showed that bud location was a preferential place for AR formation independently of wounding treatment. In case of Rosa 'Tan09283', laser treatments did not reduce its high rooting capacity, but an apparent reduction in rooting quality due to an investment in tissue healing was observed when wounding reached deeper layers such as parenchyma and sclerenchyma. Results also showed a strong AR formation directly from wounded regions in case of Rosa 'Tan09283' specifically when the wound was located below the axillary bud. In conclusion, wounding by assisted-elimination of layers by laser can induce positive effects on AR formation of single-node stem cuttings of the rose if energy applied is able to expose phloem proximities, a longitudinal orientation, and relative position to the axillary bud are considered.
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Affiliation(s)
- Raul Javier Morales-Orellana
- Hochschule Osnabrück - University of Applied Sciences, Biosystem Engineering Laboratory (BLab), Osnabrück, Germany
- Leibniz Universität Hannover, Institute of Horticultural Production Systems, Section Woody Plant and Propagation Physiology, Hannover, Germany
| | - Traud Winkelmann
- Leibniz Universität Hannover, Institute of Horticultural Production Systems, Section Woody Plant and Propagation Physiology, Hannover, Germany
| | - Andreas Bettin
- Hochschule Osnabrück - University of Applied Sciences, Biosystem Engineering Laboratory (BLab), Osnabrück, Germany
| | - Thomas Rath
- Hochschule Osnabrück - University of Applied Sciences, Biosystem Engineering Laboratory (BLab), Osnabrück, Germany
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Zhao Y, Chen Y, Jiang C, Lu MZ, Zhang J. Exogenous hormones supplementation improve adventitious root formation in woody plants. Front Bioeng Biotechnol 2022; 10:1009531. [PMID: 36177185 PMCID: PMC9513251 DOI: 10.3389/fbioe.2022.1009531] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 08/19/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- Yanqiu Zhao
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, Zhejiang, China
- The Engineering Research Institute of Agriculture and Forestry, Ludong University, Yantai, Shandong, China
| | - Yinjie Chen
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, Zhejiang, China
| | - Cheng Jiang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, Zhejiang, China
| | - Meng-Zhu Lu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, Zhejiang, China
| | - Jin Zhang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, Zhejiang, China
- *Correspondence: Jin Zhang, , orcid.org/0000-0002-8397-5078
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Comparative Proteomic Analysis Provides New Insights into the Development of Haustorium in Taxillus chinensis (DC.) Danser. BIOMED RESEARCH INTERNATIONAL 2022; 2022:9567647. [PMID: 35941969 PMCID: PMC9356245 DOI: 10.1155/2022/9567647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 06/09/2022] [Indexed: 11/28/2022]
Abstract
Taxillus chinensis is an important medicinal and parasitic plant that attacks other plants for living. The development of haustorium is a critical process, imperative for successful parasitic invasion. To reveal the mechanisms underlying haustorium development, we performed an iTRAQ-based proteomics analysis which led to the identification of several differentially abundant proteins (DAPs) in fresh seeds (CK), baby (FB), and adult haustoria (FD). A total of 563 and 785 DAPs were identified and quantified in the early and later developmental stages, respectively. Pathway enrichment analysis revealed that the DAPs are mainly associated with metabolic pathways, ribosome, phenylpropanoid biosynthesis, and photosynthesis. In addition, DAPs associated with the phytohormone signaling pathway changed markedly. Furthermore, we evaluated the content of various phytohormones during different stages of haustoria development. These results indicated that phytohormones are very important for haustorium development. qRT-PCR results validated that the mRNA expression levels were consistent with the expression of proteins, suggesting that our results are reliable. This is the first report on haustoria proteomes in the parasitic plant, Taxillus chinensis, to the best of our knowledge. Our findings will enhance our understanding of the molecular mechanism of haustoria development.
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Key regulatory pathways, microRNAs, and target genes participate in adventitious root formation of Acer rubrum L. Sci Rep 2022; 12:12057. [PMID: 35835811 PMCID: PMC9283533 DOI: 10.1038/s41598-022-16255-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 07/07/2022] [Indexed: 12/27/2022] Open
Abstract
Red maple (Acer rubrum L.) is a type of colorful ornamental tree with great economic value. Because this tree is difficult to root under natural conditions and the seedling survival rate is low, vegetative propagation methods are often used. Because the formation of adventitious roots (ARs) is essential for the asexual propagation of A. rubrum, it is necessary to investigate the molecular regulatory mechanisms of AR formation in A. rubrum. To address this knowledge gap, we sequenced the transcriptome and small RNAs (sRNAs) of the A. rubrum variety ‘Autumn Fantasy’ using high-throughput sequencing and explored changes in gene and microRNA (miRNA) expression in response to exogenous auxin treatment. We identified 82,468 differentially expressed genes (DEGs) between the treated and untreated ARs, as well as 48 known and 95 novel miRNAs. We also identified 172 target genes of the known miRNAs using degradome sequencing. Two key regulatory pathways (ubiquitin mediated proteolysis and plant hormone signal transduction), Ar-miR160a and the target gene auxin response factor 10 (ArARF10) were selected based on KEGG pathway and cluster analyses. We further investigated the expression patterns and regulatory roles of ArARF10 through subcellular localization, transcriptional activation, plant transformation, qRT-PCR analysis, and GUS staining. Experiments overexpressing ArARF10 and Ar-miR160a, indicated that ArARF10 promoted AR formation, while Ar-miR160a inhibited AR formation. Transcription factors (TFs) and miRNAs related to auxin regulation that promote AR formation in A. rubrum were identified. Differential expression patterns indicated the Ar-miR160a-ArARF10 interaction might play a significant role in the regulation of AR formation in A. rubrum. Our study provided new insights into mechanisms underlying the regulation of AR formation in A. rubrum.
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Liu W, Zhang Y, Fang X, Tran S, Zhai N, Yang Z, Guo F, Chen L, Yu J, Ison MS, Zhang T, Sun L, Bian H, Zhang Y, Yang L, Xu L. Transcriptional landscapes of de novo root regeneration from detached Arabidopsis leaves revealed by time-lapse and single-cell RNA sequencing analyses. PLANT COMMUNICATIONS 2022; 3:100306. [PMID: 35605192 PMCID: PMC9284295 DOI: 10.1016/j.xplc.2022.100306] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 02/17/2022] [Accepted: 02/21/2022] [Indexed: 05/19/2023]
Abstract
Detached Arabidopsis thaliana leaves can regenerate adventitious roots, providing a platform for studying de novo root regeneration (DNRR). However, the comprehensive transcriptional framework of DNRR remains elusive. Here, we provide a high-resolution landscape of transcriptome reprogramming from wound response to root organogenesis in DNRR and show key factors involved in DNRR. Time-lapse RNA sequencing (RNA-seq) of the entire leaf within 12 h of leaf detachment revealed rapid activation of jasmonate, ethylene, and reactive oxygen species (ROS) pathways in response to wounding. Genetic analyses confirmed that ethylene and ROS may serve as wound signals to promote DNRR. Next, time-lapse RNA-seq within 5 d of leaf detachment revealed the activation of genes involved in organogenesis, wound-induced regeneration, and resource allocation in the wounded region of detached leaves during adventitious rooting. Genetic studies showed that BLADE-ON-PETIOLE1/2, which control aboveground organs, PLETHORA3/5/7, which control root organogenesis, and ETHYLENE RESPONSE FACTOR115, which controls wound-induced regeneration, are involved in DNRR. Furthermore, single-cell RNA-seq data revealed gene expression patterns in the wounded region of detached leaves during adventitious rooting. Overall, our study not only provides transcriptome tools but also reveals key factors involved in DNRR from detached Arabidopsis leaves.
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Affiliation(s)
- Wu Liu
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai 200032, China
| | - Yuyun Zhang
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai 200032, China; University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100049, China
| | - Xing Fang
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai 200032, China; University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100049, China
| | - Sorrel Tran
- Department of Plant Pathology, University of Georgia, Athens, GA 30602, USA
| | - Ning Zhai
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai 200032, China
| | - Zhengfei Yang
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai 200032, China; College of Life Sciences, Shanghai Normal University, Shanghai 200234, China
| | - Fu Guo
- Hainan Institute of Zhejiang University, Yazhou Bay Science and Technology City, Sanya 572025, China
| | - Lyuqin Chen
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai 200032, China; University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100049, China
| | - Jie Yu
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai 200032, China
| | - Madalene S Ison
- Department of Plant Pathology, University of Georgia, Athens, GA 30602, USA
| | - Teng Zhang
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai 200032, China; University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100049, China
| | - Lijun Sun
- School of Life Sciences, Nantong University, Nantong, China
| | - Hongwu Bian
- Institute of Genetic and Regenerative Biology, Key Laboratory for Cell and Gene Engineering of Zhejiang Province, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yijing Zhang
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai 200032, China; State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, Department of Biochemistry, Institute of Plant Biology, School of Life Sciences, Fudan University, Shanghai 200438, China.
| | - Li Yang
- Department of Plant Pathology, University of Georgia, Athens, GA 30602, USA.
| | - Lin Xu
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai 200032, China.
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37
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Ibarra-Laclette E, Venancio-Rodríguez CA, Vásquez-Aguilar AA, Alonso-Sánchez AG, Pérez-Torres CA, Villafán E, Ramírez-Barahona S, Galicia S, Sosa V, Rebollar EA, Lara C, González-Rodríguez A, Díaz-Fleisher F, Ornelas JF. Transcriptional Basis for Haustorium Formation and Host Establishment in Hemiparasitic Psittacanthus schiedeanus Mistletoes. Front Genet 2022; 13:929490. [PMID: 35769994 PMCID: PMC9235361 DOI: 10.3389/fgene.2022.929490] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 05/20/2022] [Indexed: 11/13/2022] Open
Abstract
The mistletoe Psittacanthus schiedeanus, a keystone species in interaction networks between plants, pollinators, and seed dispersers, infects a wide range of native and non-native tree species of commercial interest. Here, using RNA-seq methodology we assembled the whole circularized quadripartite structure of P. schiedeanus chloroplast genome and described changes in the gene expression of the nuclear genomes across time of experimentally inoculated seeds. Of the 140,467 assembled and annotated uniGenes, 2,000 were identified as differentially expressed (DEGs) and were classified in six distinct clusters according to their expression profiles. DEGs were also classified in enriched functional categories related to synthesis, signaling, homoeostasis, and response to auxin and jasmonic acid. Since many orthologs are involved in lateral or adventitious root formation in other plant species, we propose that in P. schiedeanus (and perhaps in other rootless mistletoe species), these genes participate in haustorium formation by complex regulatory networks here described. Lastly, and according to the structural similarities of P. schiedeanus enzymes with those that are involved in host cell wall degradation in fungi, we suggest that a similar enzymatic arsenal is secreted extracellularly and used by mistletoes species to easily parasitize and break through tissues of the host.
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Affiliation(s)
- Enrique Ibarra-Laclette
- Instituto de Ecología A.C. (INECOL), Red de Estudios Moleculares Avanzados (REMAv), Xalapa, Mexico
- *Correspondence: Enrique Ibarra-Laclette, ; Juan Francisco Ornelas,
| | | | | | | | - Claudia-Anahí Pérez-Torres
- Instituto de Ecología A.C. (INECOL), Red de Estudios Moleculares Avanzados (REMAv), Xalapa, Mexico
- Investigador por Mexico-CONACyT en el Instituto de Ecología A.C. (INECOL), Xalapa, Mexico
| | - Emanuel Villafán
- Instituto de Ecología A.C. (INECOL), Red de Estudios Moleculares Avanzados (REMAv), Xalapa, Mexico
| | - Santiago Ramírez-Barahona
- Departamento de Botánica, Instituto de Biología, Universidad Nacional Autónoma de Mexico (UNAM), Ciudad de Mexico, Mexico
| | - Sonia Galicia
- Instituto de Ecología A.C. (INECOL), Red de Biología Evolutiva, Xalapa, Mexico
| | - Victoria Sosa
- Instituto de Ecología A.C. (INECOL), Red de Biología Evolutiva, Xalapa, Mexico
| | - Eria A. Rebollar
- Centro de Ciencias Genómicas, Universidad Nacional Autónoma de Mexico, Cuernavaca, Mexico
| | - Carlos Lara
- Centro de Investigación en Ciencias Biológicas, Universidad Autónoma de Tlaxcala, Tlaxcala, Mexico
| | - Antonio González-Rodríguez
- Laboratorio de Genética de la Conservación, Instituto de Investigaciones en Ecosistemas y Sustentabilidad (IIES), UNAM, Morelia, Mexico
| | | | - Juan Francisco Ornelas
- Instituto de Ecología A.C. (INECOL), Red de Biología Evolutiva, Xalapa, Mexico
- *Correspondence: Enrique Ibarra-Laclette, ; Juan Francisco Ornelas,
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Ji XL, Li HL, Qiao ZW, Zhang JC, Sun WJ, You CX, Hao YJ, Wang XF. The BTB protein MdBT2 recruits auxin signaling components to regulate adventitious root formation in apple. PLANT PHYSIOLOGY 2022; 189:1005-1020. [PMID: 35218363 PMCID: PMC9157121 DOI: 10.1093/plphys/kiac084] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 01/28/2022] [Indexed: 05/27/2023]
Abstract
Ubiquitination is an important post-translational protein modification. Although BROAD-COMPLEX, TRAMTRACK AND BRIC A BRAC and TRANSCRIPTION ADAPTOR PUTATIVE ZINC FINGER domain protein 2 (BT2) is involved in many biological processes, its role in apple (Malus domestic) root formation remains unclear. Here, we revealed that MdBT2 inhibits adventitious root (AR) formation through interacting with AUXIN RESPONSE FACTOR8 (MdARF8) and INDOLE-3-ACETIC ACID INDUCIBLE3 (MdIAA3). MdBT2 facilitated MdARF8 ubiquitination and degradation through the 26S proteasome pathway and negatively regulated GRETCHEN HAGEN 3.1 (MdGH3.1) and MdGH3.6 expression. MdARF8 regulates AR formation through inducing transcription of MdGH3s (MdGH3.1, MdGH3.2, MdGH3.5, and MdGH3.6). In addition, MdBT2 facilitated MdIAA3 stability and slightly promoted its interaction with MdARF8. MdIAA3 inhibited AR formation by forming heterodimers with MdARF8 as well as other MdARFs (MdARF5, MdARF6, MdARF7, and MdARF19). Our findings reveal that MdBT2 acts as a negative regulator of AR formation in apple.
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Affiliation(s)
- Xing-Long Ji
- State Key Laboratory of Crop Biology, Shandong Collaborative Innovation Center of Fruit and Vegetable Quality and Efficient Production, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An 271018, China
- Institute of Grape Science and Engineering, College of Horticulture, Qingdao Agricultural University, Qingdao 266109, China
| | - Hong-Liang Li
- State Key Laboratory of Crop Biology, Shandong Collaborative Innovation Center of Fruit and Vegetable Quality and Efficient Production, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An 271018, China
| | - Zhi-Wen Qiao
- State Key Laboratory of Crop Biology, Shandong Collaborative Innovation Center of Fruit and Vegetable Quality and Efficient Production, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An 271018, China
| | - Jiu-Cheng Zhang
- State Key Laboratory of Crop Biology, Shandong Collaborative Innovation Center of Fruit and Vegetable Quality and Efficient Production, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An 271018, China
| | - Wei-Jian Sun
- State Key Laboratory of Crop Biology, Shandong Collaborative Innovation Center of Fruit and Vegetable Quality and Efficient Production, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An 271018, China
| | - Chun-Xiang You
- State Key Laboratory of Crop Biology, Shandong Collaborative Innovation Center of Fruit and Vegetable Quality and Efficient Production, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An 271018, China
| | - Yu-Jin Hao
- State Key Laboratory of Crop Biology, Shandong Collaborative Innovation Center of Fruit and Vegetable Quality and Efficient Production, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An 271018, China
| | - Xiao-Fei Wang
- State Key Laboratory of Crop Biology, Shandong Collaborative Innovation Center of Fruit and Vegetable Quality and Efficient Production, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An 271018, China
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Lu R, Chen Y, Zhang X, Feng Y, Comes HP, Li Z, Zheng Z, Yuan Y, Wang L, Huang Z, Guo Y, Sun G, Olsen KM, Chen J, Qiu Y. Genome sequencing and transcriptome analyses provide insights into the origin and domestication of water caltrop (Trapa spp., Lythraceae). PLANT BIOTECHNOLOGY JOURNAL 2022; 20:761-776. [PMID: 34861095 PMCID: PMC8989495 DOI: 10.1111/pbi.13758] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 11/25/2021] [Indexed: 06/13/2023]
Abstract
Humans have domesticated diverse species from across the plant kingdom; however, our current understanding of plant domestication is largely founded on major cereal crops. Here, we examine the evolutionary processes and genetic basis underlying the domestication of water caltrop (Trapa spp., Lythraceae), a traditional, yet presently underutilized non-cereal crop that sustained early Chinese agriculturalists. We generated a chromosome-level genome assembly of tetraploid T. natans, and then divided the allotetraploid genome into two subgenomes. Based on resequencing data from 57 accessions, representing cultivated diploid T. natans, wild T. natans (2x and 4x) and diploid T. incisa, we showed that water caltrop was likely first domesticated in the Yangtze River Valley as early as 6300 yr BP, and experienced a second improvement c. 800 years ago. We also provided strong support for an allotetraploid origin of T. natans within the past 230 000-310 000 years. By integrating selective sweep and transcriptome profiling analyses, we identified a number of genes potentially selected and/or differentially expressed during domestication, some of which likely contributed not only to larger fruit sizes but also to a more vigorous root system, facilitating nutrient uptake, environmental stress response and underwater photosynthesis. Our results shed light on the evolutionary and domestication history of water caltrop, one of the earliest domesticated crops in China. This study has implications for genomic-assisted breeding of this presently underutilized aquatic plant, and improves our general understanding of plant domestication.
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Affiliation(s)
- Rui‐Sen Lu
- Systematic & Evolutionary Botany and Biodiversity Group, MOE Laboratory of Biosystem Homeostasis and Protection, College of Life SciencesZhejiang UniversityHangzhouZhejiangChina
- Institute of BotanyJiangsu Province and Chinese Academy of SciencesNanjingChina
| | - Yang Chen
- Systematic & Evolutionary Botany and Biodiversity Group, MOE Laboratory of Biosystem Homeostasis and Protection, College of Life SciencesZhejiang UniversityHangzhouZhejiangChina
| | - Xin‐Yi Zhang
- Systematic & Evolutionary Botany and Biodiversity Group, MOE Laboratory of Biosystem Homeostasis and Protection, College of Life SciencesZhejiang UniversityHangzhouZhejiangChina
| | - Yu Feng
- Systematic & Evolutionary Botany and Biodiversity Group, MOE Laboratory of Biosystem Homeostasis and Protection, College of Life SciencesZhejiang UniversityHangzhouZhejiangChina
| | | | - Zheng Li
- Department of Ecology and Evolutionary BiologyUniversity of ArizonaTucsonAZUSA
| | - Zhai‐Sheng Zheng
- Jinhua Academy of Agricultural Sciences (Zhejiang Institute of Agricultural Machinery)JinhuaZhejiangChina
| | - Ye Yuan
- Jiaxing Academy of Agricultural SciencesJiaxingChina
| | - Ling‐Yun Wang
- Jinhua Academy of Agricultural Sciences (Zhejiang Institute of Agricultural Machinery)JinhuaZhejiangChina
| | - Zi‐Jian Huang
- Systematic & Evolutionary Botany and Biodiversity Group, MOE Laboratory of Biosystem Homeostasis and Protection, College of Life SciencesZhejiang UniversityHangzhouZhejiangChina
| | - Yi Guo
- Department of Archaeology, Cultural Heritage and MuseologyZhejiang UniversityHangzhouChina
| | - Guo‐Ping Sun
- Zhejiang Provincial Research Institute of Cultural Relics and ArchaeologyHangzhouChina
| | - Kenneth M. Olsen
- Department of BiologyWashington University in St LouisSt LouisMOUSA
| | - Jun Chen
- Systematic & Evolutionary Botany and Biodiversity Group, MOE Laboratory of Biosystem Homeostasis and Protection, College of Life SciencesZhejiang UniversityHangzhouZhejiangChina
| | - Ying‐Xiong Qiu
- Systematic & Evolutionary Botany and Biodiversity Group, MOE Laboratory of Biosystem Homeostasis and Protection, College of Life SciencesZhejiang UniversityHangzhouZhejiangChina
- Wuhan Botanical GardenChinese Academy of SciencesWuhanHubeiChina
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Xu L, Deng ZN, Wu KC, Malviya MK, Solanki MK, Verma KK, Pang T, Li YJ, Liu XY, Kashyap BK, Dessoky ES, Wang WZ, Huang HR. Transcriptome Analysis Reveals a Gene Expression Pattern That Contributes to Sugarcane Bud Propagation Induced by Indole-3-Butyric Acid. FRONTIERS IN PLANT SCIENCE 2022; 13:852886. [PMID: 35371161 PMCID: PMC8969426 DOI: 10.3389/fpls.2022.852886] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 02/14/2022] [Indexed: 05/30/2023]
Abstract
Sugarcane is a cash crop that plays an integral part in the sugar industry. The Sustainable Sugarcane Initiative (SSI) has been adopted globally, ensuring enough and aiming for more yield, helping increase disease-free sugarcane cultivation. Single-bud seeds could be the best approach for sugarcane cultivation. Indole-3-butyric acid (IBA) is a rooting agent utilized significantly in seedling propagation. Greenhouse experiment results discovered the significant growth promotion in sugarcane seedlings and accumulation of plant hormones at 100 ppm IBA. Next, we performed transcriptomic analysis of sugarcane buds using RNA sequencing and compared their gene expression during root development due to affect of IBA (100 ppm). A total of 113,475 unigenes were annotated with an average length of 836 bp (N50 = 1,536). The comparative RNA-seq study between the control (CK) and IBA-treated (T) buds showed significant differentially expressed unigenes (494 upregulated and 2086 downregulated). The IBA influenced major biological processes including metabolic process, the cellular process, and single-organism process. For cellular component category, cell, cell part, organelle, membrane, and organelle part were mainly affected. In addition, catalytic activity and binding were primarily affected in the molecular function categories. Furthermore, the expression of genes related to plant hormones and signaling pathways was analyzed by qRT-PCR, which was consistent with the RNA-seq expression profile. This study provides new insights into the IBA response to the bud sprouting in sugarcane based on RNA sequencing, and generated information could help further research on breeding improvement of sugarcane.
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Affiliation(s)
- Lin Xu
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Area, Sugarcane Research Center, Chinese Academy of Agricultural Sciences, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Zhi-Nian Deng
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Area, Sugarcane Research Center, Chinese Academy of Agricultural Sciences, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Kai-Chao Wu
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Area, Sugarcane Research Center, Chinese Academy of Agricultural Sciences, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Mukesh Kumar Malviya
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Area, Sugarcane Research Center, Chinese Academy of Agricultural Sciences, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Manoj Kumar Solanki
- Plant Cytogenetics and Molecular Biology Group, Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Katowice, Poland
| | - Krishan K. Verma
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Area, Sugarcane Research Center, Chinese Academy of Agricultural Sciences, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Tian Pang
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Area, Sugarcane Research Center, Chinese Academy of Agricultural Sciences, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Yi-Jie Li
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Area, Sugarcane Research Center, Chinese Academy of Agricultural Sciences, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Xiao-Yan Liu
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Area, Sugarcane Research Center, Chinese Academy of Agricultural Sciences, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Brijendra Kumar Kashyap
- Department of Biotechnology Engineering, Institute of Engineering and Technology, Bundelkhand University, Jhansi, India
| | - Eldessoky S. Dessoky
- Department of Plant Genetic Transformation, Agriculture Genetic Engineering Research Institute, Agriculture Research Center, Giza, Egypt
- Department of Biology, College of Science, Taif University, Taif, Saudi Arabia
| | - Wei-Zan Wang
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Area, Sugarcane Research Center, Chinese Academy of Agricultural Sciences, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Hai-Rong Huang
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Area, Sugarcane Research Center, Chinese Academy of Agricultural Sciences, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
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Efficacy of Different Concentrations of NAA on Selected Ornamental Woody Shrubs Cuttings. HORTICULTURAE 2021. [DOI: 10.3390/horticulturae7110464] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Ornamental woody shrubs are used in landscape design worldwide. Their propagation can be made generatively and vegetatively. Vegetative propagation methods are mostly used by nurseries, as such methods are quick and the newly propagated plants inherit the genetics of the mother plant. However, rooting in some woody plants is slow and, unfortunately, sometimes produces only a small number of rooted cuttings. In this study, shoot cuttings from six selected ornamental woody shrubs were subjected to different concentrations of rooting stimulators (0.5 (NAA5) and 0.8 (NAA8) % concentrations of 1-Naphthylacetic acid; cuttings without treatment were considered as control) and propagated in two different periods (spring and summer). Our results show that significant changes were obtained in the plants under the different treatments. Most of the plants showed a positive response to both treatments, expect for Cotinus coggygria ‘Royal Purple’, which, compared to control, registered decreases in all the tested parameters under NAA5 treatment. Ilex aquifolium was the species that showed increments in all the parameters when NAA treatments were applied. In conclusion, our research suggests that NAA increases rooting in ornamental woody shrubs, although in some cases rooting could be a species-dependent process.
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Zhai S, Cai W, Xiang ZX, Chen CY, Lu YT, Yuan TT. PIN3-mediated auxin transport contributes to blue light-induced adventitious root formation in Arabidopsis. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2021; 312:111044. [PMID: 34620442 DOI: 10.1016/j.plantsci.2021.111044] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 08/21/2021] [Accepted: 08/27/2021] [Indexed: 06/13/2023]
Abstract
Adventitious rooting is a heritable quantitative trait that is influenced by multiple endogenous and exogenous factors in plants, and one important environmental factor required for efficient adventitious root formation is light signaling. However, the physiological significance and molecular mechanism of light underlying adventitious root formation are still largely unexplored. Here, we report that blue light-induced adventitious root formation is regulated by PIN-FORMED3 (PIN3)-mediated auxin transport in Arabidopsis. Adventitious root formation is significantly impaired in the loss-of-function mutants of the blue light receptors, PHOTOROPIN1 (PHOT1) and PHOTOROPIN2 (PHOT2), as well as the phototropic transducer, NON-PHOTOTROPIC HYPOCOTYL3 (NPH3). In addition, blue light enhanced the auxin content in the adventitious root, and the pin3 loss-of-function mutant had a reduced adventitious rooting response under blue light compared to the wild type. The PIN3 protein level was higher in plants treated with blue light than in those in darkness, especially in the hypocotyl pericycle, while PIN3-GFP failed to accumulate in nph3 PIN3::PIN3-GFP. Furthermore, the results showed that PIN3 physically interacted with NPH3, a key transducer in phototropic signaling. Taken together, our study demonstrates that blue light induces adventitious root formation through the phototropic signal transducer, NPH3, which regulates adventitious root formation by affecting PIN3-mediated auxin transport.
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Affiliation(s)
- Shuang Zhai
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Wei Cai
- Institute of Crop Science of Wuhan Academy of Agriculture Science, Wuhan, 430345, China
| | - Zhi-Xin Xiang
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Cai-Yan Chen
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Ying-Tang Lu
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Ting-Ting Yuan
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China.
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Yang R, Wang S, Zou H, Li L, Li Y, Wang D, Xu H, Cao X. R2R3-MYB Transcription Factor SmMYB52 Positively Regulates Biosynthesis of Salvianolic Acid B and Inhibits Root Growth in Salvia miltiorrhiza. Int J Mol Sci 2021; 22:ijms22179538. [PMID: 34502445 PMCID: PMC8431584 DOI: 10.3390/ijms22179538] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 08/29/2021] [Accepted: 08/30/2021] [Indexed: 12/18/2022] Open
Abstract
The dried root of Salvia miltiorrhiza is a renowned traditional Chinese medicine that was used for over 1000 years in China. Salvianolic acid B (SalB) is the main natural bioactive product of S. miltiorrhiza. Although many publications described the regulation mechanism of SalB biosynthesis, few reports simultaneously focused on S. miltiorrhiza root development. For this study, an R2R3-MYB transcription factor gene (SmMYB52) was overexpressed and silenced, respectively, in S. miltiorrhiza sterile seedlings. We found that SmMYB52 significantly inhibited root growth and indole-3-acetic acid (IAA) accumulation, whereas it activated phenolic acid biosynthesis and the jasmonate acid (JA) signaling pathway. Quantitative real-time polymerase chain reaction (qRT-PCR) analyses revealed that SmMYB52 suppressed the transcription levels of key enzyme-encoding genes involved in the IAA biosynthetic pathway and activated key enzyme-encoding genes involved in the JA and phenolic acid biosynthesis pathways. In addition, yeast one-hybrid (Y1H) and dual-luciferase assay showed that SmMYB52 directly binds to and activates the promoters of several key enzyme genes for SalB biosynthesis, including SmTAT1, Sm4CL9, SmC4H1, and SmHPPR1, to promote the accumulation of SalB. This is the first report of a regulator that simultaneously affects root growth and the production of phenolic acids in S. miltiorrhiza.
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Affiliation(s)
- Rao Yang
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, Shaanxi Normal University, Xi’an 710062, China; (R.Y.); (S.W.); (H.Z.); (L.L.); (D.W.)
| | - Shengsong Wang
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, Shaanxi Normal University, Xi’an 710062, China; (R.Y.); (S.W.); (H.Z.); (L.L.); (D.W.)
| | - Haolan Zou
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, Shaanxi Normal University, Xi’an 710062, China; (R.Y.); (S.W.); (H.Z.); (L.L.); (D.W.)
| | - Lin Li
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, Shaanxi Normal University, Xi’an 710062, China; (R.Y.); (S.W.); (H.Z.); (L.L.); (D.W.)
| | - Yonghui Li
- College of Life Science, Luoyang Normal University, Luoyang 471934, China;
| | - Donghao Wang
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, Shaanxi Normal University, Xi’an 710062, China; (R.Y.); (S.W.); (H.Z.); (L.L.); (D.W.)
| | - Hongxing Xu
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, Shaanxi Normal University, Xi’an 710062, China; (R.Y.); (S.W.); (H.Z.); (L.L.); (D.W.)
- Correspondence: (H.X.); (X.C.)
| | - Xiaoyan Cao
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, Shaanxi Normal University, Xi’an 710062, China; (R.Y.); (S.W.); (H.Z.); (L.L.); (D.W.)
- Correspondence: (H.X.); (X.C.)
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da Costa Menezes PVM, Silva AA, Mito MS, Mantovanelli GC, Stulp GF, Wagner AL, Constantin RP, Baldoqui DC, Silva RG, Oliveira do Carmo AA, de Souza LA, de Oliveira Junior RS, Araniti F, Abenavoli MR, Ishii-Iwamoto EL. Morphogenic responses and biochemical alterations induced by the cover crop Urochloa ruziziensis and its component protodioscin in weed species. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 166:857-873. [PMID: 34237604 DOI: 10.1016/j.plaphy.2021.06.040] [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: 04/03/2021] [Revised: 05/30/2021] [Accepted: 06/22/2021] [Indexed: 06/13/2023]
Abstract
Urochloa ruziziensis, a cover plant used in no-till systems, can suppress weeds in the field through their chemical compounds, but the mode of action of these compounds is still unknown. The present study aimed to investigate the effects of a saponin-rich butanolic extract from U. ruziziensis straw (BfUr) and one of its components, protodioscin on an eudicot Ipomoea grandifolia and a monocot Digitaria insularis weed. The anatomy and the morphology of the root systems and several parameters related to energy metabolism and antioxidant defense systems were examined. The IC50 values for the root growth inhibition by BfUr were 108 μg mL-1 in D. insularis and 230 μg mL-1 in I. grandifolia. The corresponding values for protodioscin were 34 μg mL-1 and 54 μg mL-1. I. grandifolia exhibited higher ROS-induced peroxidative damage in its roots compared with D. insularis. In the roots of both weeds, the BfUr and protodioscin induced a reduction in the meristematic and elongation zones with a precocious appearance of lateral roots, particularly in I. grandifolia. The roots also exhibited features of advanced cell differentiation in the vascular cylinder. These alterations were similar to stress-induced morphogenic responses (SIMRs), which are plant adaptive strategies to survive in the presence of toxicants. At concentrations above their IC50 values, the BfUr or protodioscin strongly inhibited the development of both weeds. Such findings demonstrated that U. ruziziensis mulches may contribute to the use of natural and renewable weed control tools.
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Affiliation(s)
| | - Adriano Antonio Silva
- Center of Biological Sciences and Nature, Federal University of Acre, Rio Branco, Brazil
| | | | | | | | | | | | | | | | | | | | | | - Fabrizio Araniti
- Department of Agricultural and Environmental Sciences, University of Milan, Italy
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Luo J, Nvsvrot T, Wang N. Comparative transcriptomic analysis uncovers conserved pathways involved in adventitious root formation in poplar. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2021; 27:1903-1918. [PMID: 34629770 PMCID: PMC8484428 DOI: 10.1007/s12298-021-01054-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 08/23/2021] [Accepted: 08/24/2021] [Indexed: 06/13/2023]
Abstract
UNLABELLED Cutting propagation is widely used in establishing poplar plantations, and this approach requires efficient adventitious root (AR) forming capacities. Although poplar species are considered to form roots easily, interspecific variations in AR formation are still observed. To better understand the gene regulatory network underlying the conserved modified pathways that are essential for AR formation in poplar species, comparative transcriptomic approaches were applied to identify the conserved common genes that were differentially expressed during the AR formation processes in two poplar species (Populus × euramericana and P. simonii) in woody plant medium (WPM). A total of 2146 genes were identified as conserved genes that shared similar gene expression profiles in at least one comparison. These conserved genes were enriched in diverse hormone signaling pathways, as well as the mitogen-associated protein kinase (MAPK) signaling pathway, suggesting an important role for signaling transduction in coordinating external stimuli and endogenous physiological status during AR regulation in poplar. Furthermore, the co-expression network analysis of conserved genes allowed identification of several co-expressed modules (CM) that are co-expressed with distinct biological functions, for instance, CM1 was enriched in defense response and hormone signaling, CM2 and CM3 were overrepresented in defense response-related pathways and for cell cycle, respectively. These results suggest that the AR formation processes in poplar were finely tuned at the transcriptomic level by integrating multiple biological processes essential for AR formation. Our results suggest conserved machinery for AR formation in poplar and generated informative gene co-expression networks that describe the basis of AR formation in these species. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s12298-021-01054-7.
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Affiliation(s)
- Jie Luo
- College of Horticulture and Forestry Sciences, Hubei Engineering Technology Research Center for Forestry Information, Huazhong Agricultural University, Wuhan, 430070 China
- Hubei Engineering Technology Research Center for Forestry Information, Huazhong Agricultural University, Wuhan, 430070 China
| | - Tashbek Nvsvrot
- College of Horticulture and Forestry Sciences, Hubei Engineering Technology Research Center for Forestry Information, Huazhong Agricultural University, Wuhan, 430070 China
| | - Nian Wang
- College of Horticulture and Forestry Sciences, Hubei Engineering Technology Research Center for Forestry Information, Huazhong Agricultural University, Wuhan, 430070 China
- Hubei Engineering Technology Research Center for Forestry Information, Huazhong Agricultural University, Wuhan, 430070 China
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Neogy A, Singh Z, Mushahary KKK, Yadav SR. Dynamic cytokinin signaling and function of auxin in cytokinin responsive domains during rice crown root development. PLANT CELL REPORTS 2021; 40:1367-1375. [PMID: 33047229 DOI: 10.1007/s00299-020-02618-9] [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: 07/28/2020] [Accepted: 09/30/2020] [Indexed: 06/11/2023]
Abstract
We reveal the onset and dynamic tissue-specific cytokinin signaling domains and functional importance of auxin in the auxin-cytokinin interaction domains in shaping root architecture in the economically important rice plant. Plant hormones such as auxin and cytokinin are central regulators of root organogenesis. Typical in the grass species, the root system in rice is primarily composed of post-embryonic adventitious/crown roots (ARs/CRs). Antagonistic auxin-cytokinin activities mutually balance each other to ensure proper root development. Cytokinin has been shown to inhibit crown root initiation in rice; albeit, the responsive domains remain elusive during the initiation and outgrowth of crown root primordia (CRP). Here, we show the cytokinin response domains during various stages of CRP development. RNA-RNA in situ hybridization and protein immunohistochemistry studies of the reporter gene expressed under the cytokinin responsive synthetic promoter revealed detailed spatio-temporal cytokinin signaling domains in the developing CRP. Furthermore, rice lines genetically depleted for endogenous auxin in the cytokinin responsive domains provided insight into the functional importance of auxin signaling during crown root development. Thus, our study demonstrates the onset and dynamic tissue-specific cytokinin response and functional significance of auxin-cytokinin interaction during root architecture formation in rice, a model grass species.
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Affiliation(s)
- Ananya Neogy
- Department of Biotechnology, Indian Institute of Technology, Roorkee, Roorkee, Uttarakhand, 247667, India
| | - Zeenu Singh
- Department of Biotechnology, Indian Institute of Technology, Roorkee, Roorkee, Uttarakhand, 247667, India
| | | | - Shri Ram Yadav
- Department of Biotechnology, Indian Institute of Technology, Roorkee, Roorkee, Uttarakhand, 247667, India.
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Zhang H, Li G, Yan C, Cao N, Yang H, Le M, Zhu F. Depicting the molecular responses of adventitious rooting to waterlogging in melon hypocotyls by transcriptome profiling. 3 Biotech 2021; 11:351. [PMID: 34221821 DOI: 10.1007/s13205-021-02866-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 05/31/2021] [Indexed: 12/13/2022] Open
Abstract
Waterlogging is a severe abiotic stressor that inhibits crop growth and productivity owing to the decline in the amount of oxygen available to the waterlogged organs. Although melon (Cucumis melo L.) is sensitive to waterlogging, its ability to form adventitious roots facilitates the diffusion of oxygen and allows the plant to survive waterlogging. To provide comprehensive insight into the adventitious rooting in response to waterlogging of melon, global transcriptome changes during this process were investigated. Of the 17,146 genes expressed during waterlogging, 7363 of them were differentially expressed in the pairwise comparisons between different waterlogging treatment time points. A further analysis suggested that the genes involved in sugar cleavage, glycolysis, fermentation, reactive oxygen species scavenging, cell wall modification, cell cycle governing, microtubule remodeling, hormone signals and transcription factors could play crucial roles in the adventitious root production induced by waterlogging. Additionally, ethylene and ERFs were found to be vital factors that function in melon during adventitious rooting. This study broadens our understanding of the mechanisms that underlie adventitious rooting induced by waterlogging and lays the theoretical foundation for further molecular breeding of waterlogging-tolerant melon. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s13205-021-02866-w.
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Affiliation(s)
- Huanxin Zhang
- Institute of Horticulture, Jiangxi Academy of Agricultural Sciences, Nanchang, 330200 China
| | - Guoquan Li
- Institute of Horticulture, Jiangxi Academy of Agricultural Sciences, Nanchang, 330200 China
| | - Chengpu Yan
- Institute of Horticulture, Jiangxi Academy of Agricultural Sciences, Nanchang, 330200 China
| | - Na Cao
- Institute of Horticulture, Jiangxi Academy of Agricultural Sciences, Nanchang, 330200 China
| | - Huidong Yang
- Institute of Horticulture, Jiangxi Academy of Agricultural Sciences, Nanchang, 330200 China
| | - Meiwang Le
- Institute of Horticulture, Jiangxi Academy of Agricultural Sciences, Nanchang, 330200 China
| | - Fanghong Zhu
- Institute of Horticulture, Jiangxi Academy of Agricultural Sciences, Nanchang, 330200 China
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Chacuttayapong W, Enoki H, Nabetani Y, Matsui M, Oguchi T, Motohashi R. Transformation of Jatropha curcas L. for production of larger seeds and increased amount of biodiesel. PLANT BIOTECHNOLOGY (TOKYO, JAPAN) 2021; 38:247-256. [PMID: 34393603 PMCID: PMC8329273 DOI: 10.5511/plantbiotechnology.21.0422b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 04/22/2021] [Indexed: 06/13/2023]
Abstract
The development of green energy is important to mitigate global warming. Jatropha (Jatropha curcas L.) is a promising candidate for the production of alternative biofuel, which could reduce the burden on the Earth's resources. Jatropha seeds contain a large quantity of lipids that can be used to produce biofuel, and the rest of the plant has many other uses. Currently, techniques for plant genetic transformation are extensively employed to study, create, and improve the specific characteristics of the target plant. Successful transformation involves the alteration of plants and their genetic materials. The aim of this study was to generate Jatropha plants that can support biofuel production by increasing their seed size using genes found via the rice FOX-hunting system. The present study improved previous protocols, enabling the production of transgenic Jatropha in two steps: the first step involved using auxins and dark incubation to promote root formation in excised shoots and the second step involved delaying the timing of antibiotic selection in the cultivation medium. Transgenic plants were subjected to PCR analysis; the transferred gene expression was confirmed via RT-PCR and the ploidy level was investigated. The results suggest that the genes associated with larger seed size in Arabidopsis thaliana, which were found using the rice FOX-hunting system, produce larger seeds in Jatropha.
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Affiliation(s)
- Wiluk Chacuttayapong
- Graduate School of Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, Shizuoka 422-8529, Japan
| | - Harumi Enoki
- Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, Shizuoka 422-8529, Japan
| | - Yusei Nabetani
- Graduate School of Integrated Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, Shizuoka 422-8529, Japan
| | - Minami Matsui
- Synthetic Genomics Research group, RIKEN, 1-7-22 Suehiro, Tsurumi, Yokohama, Kanagawa 230-0045, Japan
| | - Taichi Oguchi
- Tsukuba Plant‐Innovation Research Center, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8572, Japan
- Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8572, Japan
| | - Reiko Motohashi
- Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, Shizuoka 422-8529, Japan
- Graduate School of Integrated Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, Shizuoka 422-8529, Japan
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Lesmes-Vesga RA, Chaparro JX, Sarkhosh A, Ritenour MA, Cano LM, Rossi L. Effect of Propagation Systems and Indole-3-Butyric Acid Potassium Salt (K-IBA) Concentrations on the Propagation of Peach Rootstocks by Stem Cuttings. PLANTS 2021; 10:plants10061151. [PMID: 34204091 PMCID: PMC8229110 DOI: 10.3390/plants10061151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 05/16/2021] [Accepted: 06/03/2021] [Indexed: 11/16/2022]
Abstract
Traditionally, peach rootstocks are propagated by seeds due to their high availability, low cost, and easy storage and handling. However, stem cuttings allow the propagation of interspecific hybrids and keep the genetic uniformity of heterozygous genotypes. This study compared the effect of four different concentrations of K-IBA (indole-3-butyric acid potassium salt) on softwood cuttings of three peach backcrosses (peach × (peach × almond)) for rootstock propagation in two propagation systems: aeroponics and germination trays. The four concentrations of K-IBA applied were: 0.0% (w/v) as a control, 0.1% (w/v), 0.2% (w/v), and 0.4% (w/v). Data were collected on the survival rate (%), rooting rate (%), and root growth parameters. The relevance of auxin for peach cuttings rooting was evidenced. K-IBA at 0.2% showed the best rooting effect for peach softwood cuttings, evidenced by its high rooting rate and higher survival rate. K-IBA at 0.4% and 0.2% produced the highest number of adventitious roots. The highest root growth parameters were obtained in germination trays, confirming the suitability of this system for root growth. However, aeroponics was demonstrated to be as efficient as the traditional germination trays for the rooting of peach cuttings, allowing for a more controlled environment with a better use of resources.
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Affiliation(s)
- Ricardo A. Lesmes-Vesga
- Horticultural Sciences Department, Indian River Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, Fort Pierce, FL 34945, USA; (R.A.L.-V.); (M.A.R.)
| | - José X. Chaparro
- Horticultural Sciences Department, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32603, USA; (J.X.C.); (A.S.)
| | - Ali Sarkhosh
- Horticultural Sciences Department, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32603, USA; (J.X.C.); (A.S.)
| | - Mark A. Ritenour
- Horticultural Sciences Department, Indian River Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, Fort Pierce, FL 34945, USA; (R.A.L.-V.); (M.A.R.)
| | - Liliana M. Cano
- Plant Pathology Department, Indian River Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, Fort Pierce, FL 34945, USA;
| | - Lorenzo Rossi
- Horticultural Sciences Department, Indian River Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, Fort Pierce, FL 34945, USA; (R.A.L.-V.); (M.A.R.)
- Correspondence: ; Tel.: +1-772-577-7341
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Joshi M, Ginzberg I. Adventitious root formation in crops-Potato as an example. PHYSIOLOGIA PLANTARUM 2021; 172:124-133. [PMID: 33305392 DOI: 10.1111/ppl.13305] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 10/28/2020] [Accepted: 12/07/2020] [Indexed: 06/12/2023]
Abstract
The root system of potato is made up of adventitious roots (AR) that form at the base of a sprout once it emerges from the mother tuber. By definition, AR originate from dormant preformed meristems, or from cells neighboring vascular tissues in stems or leaves. This may occur as part of the developmental program of the plant (e.g., potato), or when replacing the embryonic primary roots in response to stress conditions, such as flooding, nutrient deprivation, or wounding. AR formation is studied mainly in cereals and model plants, and less is known about its developmental program in root and tuber crops. In this review, we summarize the recent data on AR development in potato and relate this knowledge to what is known from model plants. For example, AR formation following stem cutting in potato follows a pattern of initiation, expression, and emergence phases that are known for other plants and involves auxin, the master regulator of AR induction and development. Molecular regulation of AR formation and the effect of environmental stresses are discussed. Understanding the origin and nature of AR systems in important crops will contribute to increased production and improve global food security.
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Affiliation(s)
- Mukul Joshi
- Department of Biological Sciences, Birla Institute of Technology and Science, Pilani, India
| | - Idit Ginzberg
- Institute of Plant Sciences, Agricultural Research Organization, Volcani Center, Rishon LeZion, Israel
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