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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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Huang S, Zhao L, Zhang T, Qin M, Yin T, Liu Q, Li H. Root Zone Water Management Effects on Soil Hydrothermal Properties and Sweet Potato Yield. PLANTS (BASEL, SWITZERLAND) 2024; 13:1561. [PMID: 38891369 PMCID: PMC11175059 DOI: 10.3390/plants13111561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 06/03/2024] [Accepted: 06/03/2024] [Indexed: 06/21/2024]
Abstract
Sufficient soil moisture is required to ensure the successful transplantation of sweet potato seedlings. Thus, reasonable water management is essential for achieving high quality and yield in sweet potato production. We conducted field experiments in northern China, planted on 18 May and harvested on 18 October 2021, at the Nancun Experimental Base of Qingdao Agricultural University. Three water management treatments were tested for sweet potato seedlings after transplanting: hole irrigation (W1), optimized drip irrigation (W2), and traditional drip irrigation (W3). The variation characteristics of soil volumetric water content, soil temperature, and soil CO2 concentration in the root zone were monitored in situ for 0-50 days. The agronomy, root morphology, photosynthetic parameters, 13C accumulation, yield, and yield components of sweet potato were determined. The results showed that soil VWC was maintained at 22-25% and 27-32% in the hole irrigation and combined drip irrigation treatments, respectively, from 0 to 30 days after transplanting. However, there was no significant difference between the traditional (W3) and optimized (W2) drip irrigation systems. From 30 to 50 days after transplanting, the VWC decreased significantly in all treatments, with significant differences among all treatments. Soil CO2 concentrations were positively correlated with VWC from 0 to 30 days after transplanting but gradually increased from 30 to 50 days, with significant differences among treatments. Soil temperature varied with fluctuations in air temperature, with no significant differences among treatments. Sweet potato survival rates were significantly lower in the hole irrigation treatments than in the drip irrigation treatments, with no significant difference between W2 and W3. The aboveground biomass, photosynthetic parameters, and leaf area index were significantly higher under drip irrigation than under hole irrigation, and values were higher in W3 than in W2. However, the total root length, root volume, and 13C partitioning rate were higher in W2 than in W3. These findings suggest that excessive drip irrigation can lead to an imbalance in sweet potato reservoir sources. Compared with W1, the W2 and W3 treatments exhibited significant yield increases of 42.98% and 36.49%, respectively. The W2 treatment had the lowest sweet potato deformity rate.
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Affiliation(s)
| | | | | | | | | | | | - Huan Li
- College of Resources and Environmental Sciences, Qingdao Agricultural University, Qingdao 266109, China; (S.H.); (L.Z.); (T.Z.); (M.Q.); (T.Y.); (Q.L.)
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Geng L, Ren J, Ji X, Yan S, Song XS. Over-expression of DREB46 enhances drought tolerance in Populus trichocarpa. JOURNAL OF PLANT PHYSIOLOGY 2023; 281:153923. [PMID: 36657232 DOI: 10.1016/j.jplph.2023.153923] [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: 10/16/2022] [Revised: 12/20/2022] [Accepted: 01/10/2023] [Indexed: 06/17/2023]
Abstract
The drought responsive element binding (DREB) gene family has a significant role in plant abiotic stress responses. Here, we cloned a drought-inducible DREB gene, DREB46 (Potri.019G075500), and investigated its function in drought tolerance in Populus trichocarpa. Under treatment with exogenous abscisic acid and 6% PEG6000, DREB46 was rapidly and abundantly expressed. We successfully inserted P. trichocarpa DREB46 constructs into P. trichocarpa. After 11 d of drought stress and 3 d of rehydration treatment, the DREB46 over-expression (OE) lines exhibited significantly increased survival rates relative to the wild type (WT). Histochemical staining showed that the accumulation of reactive oxygen species (ROS) in transgenic plants under drought stress was lower than that in WT plants. Furthermore, OE plants displayed higher superoxide dismutase, peroxidase, and catalase activities and proline content, but lower malondialdehyde content than the WT plants under drought stress. In contrast, DREB46-RNA interference (RNAi) lines exhibited the opposite phenotype. Under PEG-6000 stress, OE plants produced significantly more adventitious roots (ARs) than WT plants. In contrast, RNAi-mediated DREB46-inhibited poplar exhibited fewer ARs. Quantitative real-time PCR indicated that WOX11/12a (Potri.013G066900), a gene related to root growth and development regulation, was significantly increased in OE plants. Additionally, yeast two-hybrid (Y2H) assays showed that DREB46 could interact with protein kinase MPK1 (Potri.002G032100) and protein phosphatase PP2C47 (Potri.007G058700), respectively, and this result was also verified by luciferase complementation assay. Transient co-expression results of leaves showed that PP2C47 and DREB46 Agrobacterium-transformed leaves had strong drought tolerance. These results show that DREB46 plays a key role in drought tolerance by inducing the ROS scavenging system and increasing the number of ARs.
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Affiliation(s)
- Liangzhuang Geng
- Department of Genetics, College of Life Science, Northeast Forestry University, Harbin, 150040, China
| | - Jing Ren
- College of Food Science, Northeast Agricultural University, Harbin, 150030, China
| | - Xiaolong Ji
- Department of Genetics, College of Life Science, Northeast Forestry University, Harbin, 150040, China
| | - Shaopeng Yan
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, 150040, China; Department of Genetics, College of Life Science, Northeast Forestry University, Harbin, 150040, China
| | - Xing Shun Song
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, 150040, China; Department of Genetics, College of Life Science, Northeast Forestry University, Harbin, 150040, China.
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Zhou Y, Li Q, Wang Z, Zhang Y. High Efficiency Regeneration System from Blueberry Leaves and Stems. LIFE (BASEL, SWITZERLAND) 2023; 13:life13010242. [PMID: 36676191 PMCID: PMC9861610 DOI: 10.3390/life13010242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/04/2023] [Accepted: 01/06/2023] [Indexed: 01/18/2023]
Abstract
The main propagation approach is tissue culture in blueberries, and tissue culture is an effective and low-cost method with higher economic efficiency in blueberries. However, there is a lack of stable and efficient production systems of industrialization of tissue culture in blueberries. In this study, the high-efficiency tissue culture and rapid propagation technology system were established based on blueberry leaves and stems. The optimal medium for callus induction was WPM (woody plant medium) containing 2.0 mg/L Forchlorfenuron (CPPU), 0.2 mg/L 2-isopentenyladenine (2-ip) with a 97% callus induction rate and a callus differentiation rate of 71% by using blueberry leaves as explants. The optimal secondary culture of the leaf callus medium was WPM containing 3.0 mg/L CPPU with an increment coefficient of 24%. The optimal bud growth medium was WPM containing 1.0 mg/L CPPU, 0.4 mg/L 2-ip, with which the growth of the bud was better, stronger and faster. The optimal rooting medium was 1/2 Murashige and Skoog (1/2MS) medium containing 2.0 mg/L naphthylacetic acid (NAA), with which the rooting rate was 90% with shorter rooting time and more adventitious root. In addition, we established a regeneration system based on blueberry stems. The optimal preculture medium in blueberry stem explants was MS medium containing 2-(N-morpholino) ethanesulfonic acid (MES) containing 0.2 mg/L indole-3-acetic acid (IAA), 0.1 mg/L CPPU, 100 mg/L NaCl, with which the germination rate of the bud was 93%. The optimal medium for fast plant growth was MS medium containing MES containing 0.4 mg/L zeatin (ZT), 1 mg/L putrescine, 1 mg/L spermidine, 1 mg/L spermidine, which had a good growth state and growth rate. The optimal cultivation for plantlet growth was MS medium containing MES containing 0.5 mg/L isopentene adenine, with which the plantlet was strong. The optimal rooting medium for the stem was 1/2MS medium containing 2.0 mg/L NAA, with which the rooting rate was 93% with a short time and more adventitious root. In conclusion, we found that stem explants had higher regeneration efficiency for a stable and efficient production system of industrialization of tissue culture. This study provides theoretical guidance and technical support in precision breeding and standardization and industrialization in the blueberry industry.
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Affiliation(s)
- Yangyan Zhou
- School of Advanced Agricultural Sciences, Peking University, Beijing 100871, China
| | - Qing Li
- Key Research Institute of Yellow River Civilization and Sustainable Development & Collaborative Innovation Center on Yellow River Civilization, Henan University, Kaifeng 475001, China
| | - Zejia Wang
- School of Advanced Agricultural Sciences, Peking University, Beijing 100871, China
| | - Yue Zhang
- Grassland Agri-Husbandry Research Center, College of Grassland Science, Qingdao Agricultural University, Qingdao 266109, China
- Correspondence:
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Shen Y, Fan K, Wang Y, Wang H, Ding S, Song D, Shen J, Li H, Song Y, Han X, Qian W, Ma Q, Ding Z. Red and Blue Light Affect the Formation of Adventitious Roots of Tea Cuttings ( Camellia sinensis) by Regulating Hormone Synthesis and Signal Transduction Pathways of Mature Leaves. FRONTIERS IN PLANT SCIENCE 2022; 13:943662. [PMID: 35873958 PMCID: PMC9301306 DOI: 10.3389/fpls.2022.943662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Accepted: 06/20/2022] [Indexed: 06/15/2023]
Abstract
Light is an important environmental factor which affects plant growth, through changes of intensity and quality. In this study, monochromatic white (control), red (660 nm), and blue (430 nm) light-emitting diodes (LEDs) were used to treat tea short cuttings. The results showed the most adventitious roots in blue light treated tea cuttings, but the lowest roots in that treated by red light. In order to explore the molecular mechanism of light quality affecting adventitious root formation, we performed full-length transcriptome and metabolome analyses of mature leaves under three light qualities, and then conducted weighted gene co-expression network analysis (WGCNA). Phytohormone analysis showed that Indole-3-carboxylic acid (ICA), Abscisic acid (ABA), ABA-glucosyl ester (ABA-GE), trans-Zeatin (tZ), and Jasmonic acid (JA) contents in mature leaves under blue light were significantly higher than those under white and red light. A crosstalk regulatory network comprising 23 co-expression modules was successfully constructed. Among them, the "MEblue" module which had a highly positive correlation with ICA (R = 0.92, P = 4e-04). KEGG analysis showed that related genes were significantly enriched in the "Plant hormone signal transduction (ko04075)" pathway. YUC (a flavin-containing monooxygenase), AUX1, AUX/IAA, and ARF were identified as hub genes, and gene expression analysis showed that the expression levels of these hub genes under blue light were higher than those under white and red light. In addition, we also identified 6 auxin transport-related genes, including PIN1, PIN3, PIN4, PILS5, PILS6, and PILS7. Except PILS5, all of these genes showed the highest expression level under blue light. In conclusion, this study elucidated the molecular mechanism of light quality regulating adventitious root formation of tea short cutting through WGCNA analysis, which provided an innovation for "rapid seedling" of tea plants.
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Affiliation(s)
- Yaozong Shen
- Tea Research Institute, Qingdao Agricultural University, Qingdao, China
| | - Kai Fan
- Tea Research Institute, Qingdao Agricultural University, Qingdao, China
| | - Yu Wang
- Tea Research Institute, Qingdao Agricultural University, Qingdao, China
| | - Hui Wang
- Rizhao Tea Research Institute, Rizhao, China
| | - Shibo Ding
- Rizhao Tea Research Institute, Rizhao, China
| | - Dapeng Song
- Rizhao Tea Research Institute, Rizhao, China
| | - Jiazhi Shen
- Tea Research Institute, Shandong Academy of Agricultural Sciences, Rizhao, China
| | - He Li
- Tea Research Institute, Qingdao Agricultural University, Qingdao, China
| | - Yujie Song
- Tea Research Institute, Qingdao Agricultural University, Qingdao, China
| | - Xiao Han
- Tea Research Institute, Qingdao Agricultural University, Qingdao, China
| | - Wenjun Qian
- Tea Research Institute, Qingdao Agricultural University, Qingdao, China
| | - Qingping Ma
- College of Agronomy, Liaocheng University, Liaocheng, China
| | - Zhaotang Ding
- Tea Research Institute, Qingdao Agricultural University, Qingdao, China
- Tea Research Institute, Shandong Academy of Agricultural Sciences, Rizhao, China
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Comparative Transcriptome Profiling Reveals the Genes Involved in Storage Root Expansion in Sweetpotato (Ipomoea batatas (L.) Lam.). Genes (Basel) 2022; 13:genes13071156. [PMID: 35885939 PMCID: PMC9321896 DOI: 10.3390/genes13071156] [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: 05/15/2022] [Revised: 06/14/2022] [Accepted: 06/14/2022] [Indexed: 12/13/2022] Open
Abstract
Sweetpotato (Ipomoea batatas (L.) Lam.) is recognized as one of the most important root crops in the world by the Food and Agriculture Organization of the United Nations. The yield of sweetpotato is closely correlated with the rate of storage root (SR) formation and expansion. At present, most of the studies on sweetpotato SR expansion are focused on the physiological mechanism. To explore the SR expansion mechanism of sweetpotato, we performed transcriptome sequencing of SR harvested at 60, 90, 120, and 150 days after planting (DAP) to analyze two sweetpotato lines, Xuzishu 8 and its crossing progenies named Xu 18-192, which were selected from an F1 segregation population of Xuzishu 8 and Meiguohong, in which SR expansion was delayed significantly. A total of 57,043 genes were produced using transcriptome sequencing, of which 1312 were differentially expressed genes (DEGs) in four SR growth periods of the sweetpotato lines. The combination of the KEGG and trend analysis revealed several key candidate genes involved in SR expansion. The SBEI gene involved in starch metabolism, and transcription factors ARF6, NF-YB3 and NF-YB10 were all significantly up-regulated during SR expansion. The data from this study provide insights into the complex mechanisms of SR formation and expansion in sweetpotato and identify new candidate genes for increasing the yield of sweetpotato.
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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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Liu Y, Chen Q, Zhou M, Yang X, Yang C, Jiao C. Sweet potato study in China: Stress response mechanisms, molecular breeding, and productivity. JOURNAL OF PLANT PHYSIOLOGY 2020; 254:153283. [PMID: 32961476 DOI: 10.1016/j.jplph.2020.153283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Affiliation(s)
- Yi Liu
- Food Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan, 430064, China.
| | - Quanxiu Chen
- Hubei Jinyue Agricultural Products Development Co., Ltd, Guangshui, China.
| | - Ming Zhou
- Hubei Jinyue Agricultural Products Development Co., Ltd, Guangshui, China.
| | - Xinsun Yang
- Food Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan, 430064, China.
| | - Chunhong Yang
- Hubei Jinyue Agricultural Products Development Co., Ltd, Guangshui, China; Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China.
| | - Chunhai Jiao
- Hubei Academy of Agricultural Sciences, Wuhan, 430064, China.
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