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Feiz L, Shyu C, Wu S, Ahern KR, Gull I, Rong Y, Artymowicz CJ, Piñeros MA, Fei Z, Brutnell TP, Jander G. COI1 F-box proteins regulate DELLA protein levels, growth, and photosynthetic efficiency in maize. THE PLANT CELL 2024; 36:3237-3259. [PMID: 38801745 PMCID: PMC11371192 DOI: 10.1093/plcell/koae161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 04/18/2024] [Accepted: 04/23/2024] [Indexed: 05/29/2024]
Abstract
The F-box protein Coronatine Insensitive (COI) is a receptor for the jasmonic acid signaling pathway in plants. To investigate the functions of the 6 maize (Zea mays) COI proteins (COI1a, COI1b, COI1c, COI1d, COI2a, and COI2b), we generated single, double, and quadruple loss-of-function mutants. The pollen of the coi2a coi2b double mutant was inviable. The coi1 quadruple mutant (coi1-4x) exhibited shorter internodes, decreased photosynthesis, leaf discoloration, microelement deficiencies, and accumulation of DWARF8 and/or DWARF9, 2 DELLA family proteins that repress the gibberellic acid (GA) signaling pathway. Coexpression of COI and DELLA in Nicotiana benthamiana showed that the COI proteins trigger proteasome-dependent DELLA degradation. Many genes that are downregulated in the coi1-4x mutant are GA-inducible. In addition, most of the proteins encoded by the downregulated genes are predicted to be bundle sheath- or mesophyll-enriched, including those encoding C4-specific photosynthetic enzymes. Heterologous expression of maize Coi genes in N. benthamiana showed that COI2a is nucleus-localized and interacts with maize jasmonate zinc-finger inflorescence meristem domain (JAZ) proteins, the canonical COI repressor partners. However, maize COI1a and COI1c showed only partial nuclear localization and reduced binding efficiency to the tested JAZ proteins. Together, these results show the divergent functions of the 6 COI proteins in regulating maize growth and defense pathways.
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Affiliation(s)
- Leila Feiz
- Boyce Thompson Institute, Ithaca, NY 14853, USA
| | - Christine Shyu
- Crop Genome Editing, Regulatory Science, Bayer Crop Science, Chesterfield, MO 63017, USA
| | - Shan Wu
- Boyce Thompson Institute, Ithaca, NY 14853, USA
| | - Kevin R Ahern
- Boyce Thompson Institute, Ithaca, NY 14853, USA
- Plant Breeding and Genetics Section, School of Integrative Plant Science, Cornell University, Ithaca, NY 14853, USA
| | - Iram Gull
- Boyce Thompson Institute, Ithaca, NY 14853, USA
| | - Ying Rong
- KWS Gateway Research Center, St. Louis, MO 63132, USA
| | | | - Miguel A Piñeros
- Robert W. Holley Center for Agriculture and Health, USDA-ARS, Ithaca, NY 14853, USA
| | - Zhangjun Fei
- Boyce Thompson Institute, Ithaca, NY 14853, USA
- Robert W. Holley Center for Agriculture and Health, USDA-ARS, Ithaca, NY 14853, USA
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Cui M, An F, Chen S, Qin X. Expression Pattern and Functional Analysis of MebHLH149 Gene in Response to Cassava Bacterial Blight. PLANTS (BASEL, SWITZERLAND) 2024; 13:2422. [PMID: 39273906 DOI: 10.3390/plants13172422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 08/03/2024] [Accepted: 08/13/2024] [Indexed: 09/15/2024]
Abstract
The significant reduction in cassava (Manihot esculenta Crantz) yields attributed to cassava bacterial blight (CBB) constitutes an urgent matter demanding prompt attention. The current study centered on the MebHLH149 transcription factor, which is acknowledged to be reactive to CBB and exhibits augmented expression levels, as indicated by laboratory transcriptome data. Our exploration, encompassing Xanthomonas phaseoli pv. manihotis strain CHN01 (Xpm CHN01) and hormone stress, disclosed that the MebHLH149 gene interacts with the pathogen at the early stage of infection. Furthermore, the MebHLH149 gene has been discovered to be responsive to the plant hormones abscisic acid (ABA), methyl jasmonate (MeJA), and salicylic acid (SA), intimating a potential role in the signaling pathways mediated by these hormones. An analysis of the protein's subcellular localization suggested that MebHLH149 is predominantly located within the nucleus. Through virus-induced gene silencing (VIGS) in cassava, we discovered that MebHLH149-silenced plants manifested higher disease susceptibility, less ROS accumulation, and significantly larger leaf spot areas compared to control plants. The proteins MePRE5 and MePRE6, which are predicted to interact with MebHLH149, demonstrated complementary downregulation and upregulation patterns in response to silencing and overexpression of the MebHLH149 gene. This implies a potential interaction between MebHLH149 and these proteins. Both MePRE5 and MePRE6 genes are involved in the initial immune response to CBB. Notably, MebHLH149 was identified as a protein that physically interacts with MePRE5 and MePRE6. Based on these findings, it is hypothesized that the MebHLH149 gene likely functions as a positive regulator in the defense mechanisms of cassava against CBB.
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Affiliation(s)
- Min Cui
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests, Ministry of Education, School of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, China
| | - Feifei An
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Songbi Chen
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Xindao Qin
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
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Luo X, Bai L, Huang J, Peng L, Hua J, Luo S. Genome-Wide Association Studies Reveal That the Abietane Diterpene Isopimaric Acid Promotes Rice Growth through Inhibition of Defense Pathways. Int J Mol Sci 2024; 25:9161. [PMID: 39273109 DOI: 10.3390/ijms25179161] [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: 07/27/2024] [Revised: 08/18/2024] [Accepted: 08/19/2024] [Indexed: 09/15/2024] Open
Abstract
Plants are an important source for the discovery of novel natural growth regulators. We used activity screening to demonstrate that treatment of Nipponbare seeds with 25 μg/mL isopimaric acid significantly increased the resulting shoot length, root length, and shoot weight of rice seedlings by 11.37 ± 5.05%, 12.96 ± 7.63%, and 27.98 ± 10.88% and that it has a higher activity than Gibberellin A3 (GA3) at the same concentration. A total of 213 inbred lines of different rice lineages were screened, and we found that isopimaric acid had different growth promotional activities on rice seedlings of different varieties. After induction with 25 μg/mL isopimaric acid, 15.02% of the rice varieties tested showed increased growth, while 15.96% of the varieties showed decreased growth; the growth of the remaining 69.02% did not show any significant change from the control. In the rice varieties showing an increase in growth, the shoot length and shoot weight significantly increased, accounting for 21.88% and 31.25%. The root length and weight significantly increased, accounting for 6.25% and 3.13%. Using genome-wide association studies (GWASs), linkage disequilibrium block, and gene haplotype significance analysis, we identified single nucleotide polymorphism (SNP) signals that were significantly associated with the length and weight of shoots on chromosomes 2 and 8, respectively. After that, we obtained 17 candidate genes related to the length of shoots and 4 candidate genes related to the weight of shoots. Finally, from the gene annotation data and gene tissue-specific expression; two genes related to this isopimaric acid regulation phenotype were identified as OsASC1 (LOC_Os02g37080) on chromosome 2 and OsBUD13 (LOC_Os08g08080) on chromosome 8. Subcellular localization analysis indicated that OsASC1 was expressed in the plasma membrane and the nuclear membrane, while OsBUD13 was expressed in the nucleus. Further RT-qPCR analysis showed that the relative expression levels of the resistance gene OsASC1 and the antibody protein gene OsBUD13 decreased significantly following treatment with 25 μg/mL isopimaric acid. These results suggest that isopimaric acid may inhibit defense pathways in order to promote the growth of rice seedlings.
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Affiliation(s)
- Xiaomeng Luo
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang 110866, China
| | - Liping Bai
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang 110866, China
| | - Jiaqi Huang
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang 110866, China
| | - Luying Peng
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang 110866, China
| | - Juan Hua
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang 110866, China
| | - Shihong Luo
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang 110866, China
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Chen S, De Zutter N, Meijer A, Gistelinck K, Wytynck P, Verbeke I, Osterne VJS, Kondeti S, De Meyer T, Audenaert K, Van Damme EJM. Overexpression of the ribosome-inactivating protein OsRIP1 modulates the jasmonate signaling pathway in rice. FRONTIERS IN PLANT SCIENCE 2024; 15:1385477. [PMID: 39206039 PMCID: PMC11349648 DOI: 10.3389/fpls.2024.1385477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Accepted: 07/24/2024] [Indexed: 09/04/2024]
Abstract
Ribosome-inactivating proteins (RIPs) are plant enzymes that target the rRNA. The cytoplasmic RIP, called OsRIP1, plays a crucial role in regulating jasmonate, a key plant hormone. Understanding the role of OsRIP1 can provide insights into enhancing stress tolerance and optimizing growth of rice. Transcription profiling by mRNA sequencing was employed to measure the changes in gene expression in rice plants in response to MeJA treatment. Compared to wild type (WT) plants, OsRIP1 overexpressing rice plants showed a lower increase in mRNA transcripts for genes related to jasmonate responses when exposed to MeJA treatment for 3 h. After 24 h of MeJA exposure, the mRNA transcripts associated with the gibberellin pathway occurred in lower levels in OsRIP1 overexpressing plants compared to WT plants. We hypothesize that the mechanism underlying OsRIP1 antagonization of MeJA-induced shoot growth inhibition involves cytokinin-mediated leaf senescence and positive regulation of cell cycle processes, probably via OsRIP1 interaction with 40S ribosomal protein S5 and α-tubulin. Moreover, the photosystem II 10kDa polypeptide was identified to favorably bind to OsRIP1, and its involvement may be attributed to the reduction of photosynthesis in OsRIP1-overexpressing plants subjected to MeJA at the early timepoint (3 h).
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Affiliation(s)
- Simin Chen
- Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Noémie De Zutter
- Laboratory of Applied Mycology and Phenomics, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Anikó Meijer
- Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Koen Gistelinck
- Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Pieter Wytynck
- Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Isabel Verbeke
- Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Vinicius J. S. Osterne
- Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Subramanyam Kondeti
- Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Tim De Meyer
- Department of Data Analysis & Mathematical Modelling, Ghent University, Ghent, Belgium
| | - Kris Audenaert
- Laboratory of Applied Mycology and Phenomics, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Els J. M. Van Damme
- Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
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Li Z, Huang Y, Shen Z, Wu M, Huang M, Hong SB, Xu L, Zang Y. Advances in functional studies of plant MYC transcription factors. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2024; 137:195. [PMID: 39103657 DOI: 10.1007/s00122-024-04697-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Accepted: 07/17/2024] [Indexed: 08/07/2024]
Abstract
Myelocytomatosis (MYC) transcription factors (TFs) belong to the basic helix-loop-helix (bHLH) family in plants and play a central role in governing a wide range of physiological processes. These processes encompass plant growth, development, adaptation to biotic and abiotic stresses, as well as secondary metabolism. In recent decades, significant strides have been made in comprehending the multifaceted regulatory functions of MYCs. This advancement has been achieved through the cloning of MYCs and the characterization of plants with MYC deficiencies or overexpression, employing comprehensive genome-wide 'omics' and protein-protein interaction technologies. MYCs act as pivotal components in integrating signals from various phytohormones' transcriptional regulators to orchestrate genome-wide transcriptional reprogramming. In this review, we have compiled current research on the role of MYCs as molecular switches that modulate signal transduction pathways mediated by phytohormones and phytochromes. This comprehensive overview allows us to address lingering questions regarding the interplay of signals in response to environmental cues and developmental shift. It also sheds light on the potential implications for enhancing plant resistance to diverse biotic and abiotic stresses through genetic improvements achieved by plant breeding and synthetic biology efforts.
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Affiliation(s)
- Zewei Li
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China
| | - Yunshuai Huang
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China
| | - Zhiwei Shen
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China
| | - Meifang Wu
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China
| | - Mujun Huang
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China
| | - Seung-Beom Hong
- Department of Biotechnology, University of Houston Clear Lake, Houston, TX, 77058-1098, USA
| | - Liai Xu
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China.
| | - Yunxiang Zang
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China.
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6
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Hu MX, Guo W, Song XQ, Liu YL, Xue Y, Cao Y, Hu JJ, Lu MZ, Zhao ST. PagJAZ5 regulates cambium activity through coordinately modulating cytokinin concentration and signaling in poplar. THE NEW PHYTOLOGIST 2024; 243:1455-1471. [PMID: 38874377 DOI: 10.1111/nph.19912] [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: 05/14/2024] [Accepted: 05/28/2024] [Indexed: 06/15/2024]
Abstract
Wood is resulted from the radial growth paced by the division and differentiation of vascular cambium cells in woody plants, and phytohormones play important roles in cambium activity. Here, we identified that PagJAZ5, a key negative regulator of jasmonate (JA) signaling, plays important roles in enhancing cambium cell division and differentiation by mediating cytokinin signaling in poplar 84K (Populus alba × Populus glandulosa). PagJAZ5 is preferentially expressed in developing phloem and cambium, weakly in developing xylem cells. Overexpression (OE) of PagJAZ5m (insensitive to JA) increased cambium activity and xylem differentiation, while jaz mutants showed opposite results. Transcriptome analyses revealed that cytokinin oxidase/dehydrogenase (CKXs) and type-A response regulators (RRs) were downregulated in PagJAZ5m OE plants. The bioactive cytokinins were significantly increased in PagJAZ5m overexpressing plants and decreased in jaz5 mutants, compared with that in 84K plants. The PagJAZ5 directly interact with PagMYC2a/b and PagWOX4b. Further, we found that the PagRR5 is regulated by PagMYC2a and PagWOX4b and involved in the regulation of xylem development. Our results showed that PagJAZ5 can increase cambium activity and promote xylem differentiation through modulating cytokinin level and type-A RR during wood formation in poplar.
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Affiliation(s)
- Meng-Xuan Hu
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China
- State Key Laboratory of Subtropical Silviculture, College of Forestry and Biotechnology, Zhejiang A & F University, Hangzhou, 311300, China
| | - Wei Guo
- Taishan Academy of Forestry Sciences, Taian, 271000, China
| | - Xue-Qin Song
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China
| | - Ying-Li Liu
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing, 100091, China
| | - Yuan Xue
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing, 100091, China
| | - Yuan Cao
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing, 100091, China
| | - Jian-Jun Hu
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China
| | - Meng-Zhu Lu
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China
- State Key Laboratory of Subtropical Silviculture, College of Forestry and Biotechnology, Zhejiang A & F University, Hangzhou, 311300, China
| | - Shu-Tang Zhao
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China
- State Key Laboratory of Subtropical Silviculture, College of Forestry and Biotechnology, Zhejiang A & F University, Hangzhou, 311300, China
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Altamura MM, Piacentini D, Della Rovere F, Fattorini L, Valletta A, Falasca G. Plastid dynamism integrates development and environment. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 213:108813. [PMID: 38861821 DOI: 10.1016/j.plaphy.2024.108813] [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: 04/26/2024] [Revised: 06/06/2024] [Accepted: 06/07/2024] [Indexed: 06/13/2024]
Abstract
In land plants plastid type differentiation occurs concomitantly with cellular differentiation and the transition from one type to another is under developmental and environmental control. Plastid dynamism is based on a bilateral communication between plastids and nucleus through anterograde and retrograde signaling. Signaling occurs through the interaction with specific phytohormones (abscisic acid, strigolactones, jasmonates, gibberellins, brassinosteroids, ethylene, salicylic acid, cytokinin and auxin). The review is focused on the modulation of plastid capabilities at both transcriptional and post-translational levels at the crossroad between development and stress, with a particular attention to the chloroplast, because the most studied plastid type. The role of plastid-encoded and nuclear-encoded proteins for plastid development and stress responses, and the changes of plastid fate through the activity of stromules and plastoglobules, are discussed. Examples of plastid dynamism in response to soil stress agents (salinity, lead, cadmium, arsenic, and chromium) are described. Albinism and root greening are described based on the modulation activities of auxin and cytokinin. The physiological and functional responses of the sensory epidermal and vascular plastids to abiotic and biotic stresses along with their specific roles in stress sensing are described together with their potential modulation of retrograde signaling pathways. Future research perspectives include an in-depth study of sensory plastids to explore their potential for establishing a transgenerational memory to stress. Suggestions about anterograde and retrograde pathways acting at interspecific level and on the lipids of plastoglobules as a novel class of plastid morphogenic agents are provided.
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Affiliation(s)
| | - Diego Piacentini
- Department of Environmental Biology, Sapienza University of Rome, Italy
| | | | - Laura Fattorini
- Department of Environmental Biology, Sapienza University of Rome, Italy
| | - Alessio Valletta
- Department of Environmental Biology, Sapienza University of Rome, Italy
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Zhao Z, Tu H, Wang Y, Yang J, Hao G, Wu J. Chemical Driving the Subtype Selectivity of Phytohormone Receptors Is Beneficial for Crop Productivity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:16583-16593. [PMID: 39013833 DOI: 10.1021/acs.jafc.4c04446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/18/2024]
Abstract
Chemicals that modulate phytohormones serve as a research tool in plant science and as products to improve crop productivity. Subtype selectivity refers to a ligand to selectively bind to specific subtypes of a receptor rather than binding to all possible subtypes indiscriminately. It allows for precise and specific control of cellular functions and is widely used in medicine. However, subtype selectivity is rarely mentioned in the realm of plant science, and it requires integrated knowledge from chemistry and biology, including structural features of small molecules as ligands, the redundancy of target proteins, and the response of signaling factors. Here, we present a comprehensive review and evaluation of phytohormone receptor subtype selectivity, leveraging the chemical characteristics of phytohormones and their analogues as clues. This work endeavors to provide a valuable research strategy that integrates knowledge from chemistry and biology to advance research efforts geared toward enhancing crop productivity.
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Affiliation(s)
- Zhichao Zhao
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Hong Tu
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Ya Wang
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Jianrong Yang
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Gefei Hao
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Jian Wu
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
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Zeeshan M, Sun C, Wang X, Hu Y, Wu H, Li S, Salam A, Zhu S, Khan AH, Holford P, Ali MA, Elshikh MS, Zhang Z, Zhang P. Insights into the ameliorative effect of ZnONPs on arsenic toxicity in soybean mediated by hormonal regulation, transporter modulation, and stress responsive genes. FRONTIERS IN PLANT SCIENCE 2024; 15:1427367. [PMID: 39139724 PMCID: PMC11319271 DOI: 10.3389/fpls.2024.1427367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Accepted: 07/11/2024] [Indexed: 08/15/2024]
Abstract
Arsenic (As) contamination of agricultural soils poses a serious threat to crop productivity and food safety. Zinc oxide nanoparticles (ZnONPs) have emerged as a potential amendment for mitigating the adverse effects of As stress in plants. Soybean crop is mostly grown on marginalized land and is known for high accumulation of As in roots than others tissue. Therefore, this study aimed to elucidate the underlying mechanisms of ZnONPs in ameliorating arsenic toxicity in soybean. Our results demonstrated that ZnOB significantly improved the growth performance of soybean plants exposed to arsenic. This improvement was accompanied by a decrease (55%) in As accumulation and an increase in photosynthetic efficiency. ZnOB also modulated hormonal balance, with a significant increase in auxin (149%), abscisic acid (118%), gibberellin (160%) and jasmonic acid content (92%) under As(V) stress assuring that ZnONPs may enhance root growth and development by regulating hormonal signaling. We then conducted a transcriptomic analysis to understand further the molecular mechanisms underlying the NPs-induced As(V) tolerance. This analysis identified genes differentially expressed in response to ZnONPs supplementation, including those involved in auxin, abscisic acid, gibberellin, and jasmonic acid biosynthesis and signaling pathways. Weighted gene co-expression network analysis identified 37 potential hub genes encoding stress responders, transporters, and signal transducers across six modules potentially facilitated the efflux of arsenic from cells, reducing its toxicity. Our study provides valuable insights into the molecular mechanisms associated with metalloid tolerance in soybean and offers new avenues for improving As tolerance in contaminated soils.
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Affiliation(s)
- Muhammad Zeeshan
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou, China
- Yingdong College of Biology and Agriculture, Shaoguan University, Shaoguan, China
| | - Chenyu Sun
- College of Natural Resources and Environment, Northwest A&F University, Yangling, China
| | - Xin Wang
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou, China
| | - Yuxin Hu
- College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, China
| | - Hao Wu
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou, China
| | - Shengnan Li
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou, China
| | - Abdul Salam
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou, China
| | - Shiqi Zhu
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou, China
| | - Aamir Hamid Khan
- Faculty of Biology and Environmental Protection, Department of Biogeography, Paleoecology and Nature conservation, University of Lodz, Lodz, Poland
| | - Paul Holford
- School of Science, Western Sydney University, Penrith, NSW, Australia
| | - Mohammad Ajmal Ali
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Mohamed Soliman Elshikh
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Zhixiang Zhang
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou, China
| | - Peiwen Zhang
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou, China
- Yingdong College of Biology and Agriculture, Shaoguan University, Shaoguan, China
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10
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Li X, Lin C, Lan C, Tao Z. Genetic and epigenetic basis of phytohormonal control of floral transition in plants. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:4180-4194. [PMID: 38457356 DOI: 10.1093/jxb/erae105] [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: 11/28/2023] [Accepted: 03/06/2024] [Indexed: 03/10/2024]
Abstract
The timing of the developmental transition from the vegetative to the reproductive stage is critical for angiosperms, and is fine-tuned by the integration of endogenous factors and external environmental cues to ensure successful reproduction. Plants have evolved sophisticated mechanisms to response to diverse environmental or stress signals, and these can be mediated by hormones to coordinate flowering time. Phytohormones such as gibberellin, auxin, cytokinin, jasmonate, abscisic acid, ethylene, and brassinosteroids and the cross-talk among them are critical for the precise regulation of flowering time. Recent studies of the model flowering plant Arabidopsis have revealed that diverse transcription factors and epigenetic regulators play key roles in relation to the phytohormones that regulate floral transition. This review aims to summarize our current knowledge of the genetic and epigenetic mechanisms that underlie the phytohormonal control of floral transition in Arabidopsis, offering insights into how these processes are regulated and their implications for plant biology.
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Affiliation(s)
- Xiaoxiao Li
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Chuyu Lin
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Chenghao Lan
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Zeng Tao
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
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11
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Huang S, Xu Y, Li X, Ye B, Jin S. Two Carya Species, Carya hunanensis and Carya illinoinensis, Used as Rootstocks Point to Improvements in the Heat Resistance of Carya cathayensis. PLANTS (BASEL, SWITZERLAND) 2024; 13:1967. [PMID: 39065493 PMCID: PMC11281051 DOI: 10.3390/plants13141967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Revised: 07/04/2024] [Accepted: 07/13/2024] [Indexed: 07/28/2024]
Abstract
Grafting as a crucial horticultural technique has been widely used in the cultivation of Carya cathayensis (Chinese hickory), which is a unique and important economic tree in the northeast of Zhejiang Province and the south of Anhui Province. However, the existing literature lacks research on the potential impact of various rootstocks on the thermal tolerance of Chinese hickory. The objectives of this study were to evaluate heat tolerance in four distinct groups of Chinese hickory, including C. cathayensis grafted onto Carya hunanensis and Carya illinoinensis, one self-grafted group (C. cathayensis grafted onto C. cathayensis), and one non-grafted group (C. cathayensis). We examined photosynthesis parameters, phytohormones, and differentially expressed genes in the four various hickory groups subjected to 25 °C, 35 °C, and 40 °C heat stress (HS). The results demonstrated that grafting onto C. hunanensis and C. illinoinensis exhibited a higher net photosynthetic rate and stomatal conductance, lower intercellular CO2 concentration, and smaller changes in plant hormone content compared to self-grafted and non-grafted group under HS. The transcriptome results revealed that the majority of differentially expressed genes (DEGs) associated with photosynthetic pathways exhibited downregulation under HS, while the degree of variation in grafted groups using C. hunanensis and C. illinoinensis as rootstocks was comparatively lower than that observed in self-grafted and non-grafted groups. The alteration in the expression patterns of DEGs involved in plant hormone synthesis and metabolism under HS corresponded to changes in plant hormone contents. Overall, Chinese hickory grafted onto C. hunanensis and C. illinoinensis exhibited enhanced resistance to high-temperature stress at the juvenile stage.
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Affiliation(s)
| | - Yanxia Xu
- Jiyang College, Zhejiang A&F University, Zhuji 311800, China; (S.H.); (X.L.); (B.Y.)
| | | | | | - Songheng Jin
- Jiyang College, Zhejiang A&F University, Zhuji 311800, China; (S.H.); (X.L.); (B.Y.)
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12
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Kim MS, Le VT, Jung YJ, Kang KK, Cho YG. OsPUB9 Gene Edited by CRISPR/Cas9 Enhanced Resistance to Bacterial Leaf Blight in Rice ( Oryza sativa L.). Int J Mol Sci 2024; 25:7145. [PMID: 39000251 PMCID: PMC11241066 DOI: 10.3390/ijms25137145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 06/12/2024] [Accepted: 06/22/2024] [Indexed: 07/16/2024] Open
Abstract
Ubiquitination plays a crucial role in regulating signal pathways during the post-translation stage of protein synthesis in response to various environmental stresses. E3 ubiquitin ligase has been discovered to ultimately control various intracellular activities by imparting specificity to proteins to be degraded. This study was conducted to confirm biological and genetic functions of the U-box type E3 ubiquitin ligase (PUB) gene against biotic stress in rice (Oryza sativa L.). OsPUB9 gene-specific sgRNA were designed and transformants were developed through Agrobacterium-mediated transformation. Deep sequencing using callus was performed to confirm the mutation type of T0 plants, and a total of three steps were performed to select null individuals without T-DNA insertion. In the case of the OsPUB9 gene-edited line, a one bp insertion was generated by gene editing, and it was confirmed that early stop codon and multiple open reading frame (ORF) sites were created by inserting thymine. It is presumed that ubiquitination function also changed according to the change in protein structure of U-box E3 ubiquitin ligase. The OsPUB9 gene-edited null lines were inoculated with bacterial leaf blight, and finally confirmed to have a resistance phenotype similar to Jinbaek, a bacterial blight-resistant cultivar. Therefore, it is assumed that the amino acid sequence derived from the OsPUB9 gene is greatly changed, resulting in a loss of the original protein functions related to biological mechanisms. Comprehensively, it was confirmed that resistance to bacterial leaf blight stress was enhanced when a mutation occurred at a specific site of the OsPUB9 gene.
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Affiliation(s)
- Me-Sun Kim
- Department of Crop Science, College of Agriculture and Life & Environment Sciences, Chungbuk National University, Cheongju 28644, Republic of Korea; (M.-S.K.); (V.T.L.)
| | - Van Trang Le
- Department of Crop Science, College of Agriculture and Life & Environment Sciences, Chungbuk National University, Cheongju 28644, Republic of Korea; (M.-S.K.); (V.T.L.)
| | - Yu Jin Jung
- Division of Horticultural Biotechnology, Hankyong National University, Anseong 17579, Republic of Korea;
| | - Kwon-Kyoo Kang
- Division of Horticultural Biotechnology, Hankyong National University, Anseong 17579, Republic of Korea;
| | - Yong-Gu Cho
- Department of Crop Science, College of Agriculture and Life & Environment Sciences, Chungbuk National University, Cheongju 28644, Republic of Korea; (M.-S.K.); (V.T.L.)
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13
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Li S, Tan X, He Z, Jiang L, Li Y, Yang L, Hoffmann AA, Zhao C, Fang J, Ji R. Transcriptome-wide N 6-methyladenosine profiling reveals growth-defense trade-offs in the response of rice to brown planthopper (Nilaparvata lugens) infestation. PEST MANAGEMENT SCIENCE 2024. [PMID: 39031631 DOI: 10.1002/ps.8265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 05/08/2024] [Accepted: 06/06/2024] [Indexed: 07/22/2024]
Abstract
BACKGROUND N6-Methyladenosine (m6A) is a common messenger RNA (mRNA) modification that affects various physiological processes in stress responses. However, the role of m6A modifications in plants responses to herbivore stress remains unclear. RESULTS Here, we found that an infestation of brown planthopper (Nilaparvata lugens) female adults enhanced the resistance of rice to N. lugens. The m6A methylome analysis of N. lugens-infested and uninfested rice samples was performed to explore the interaction between rice and N. lugens. The m6A methylation mainly occurred in genes that were actively expressed in rice following N. lugens infestation, while an analysis of the whole-genomic mRNA distribution of m6A showed that N. lugens infestation caused an overall decrease in the number of m6A methylation sites across the chromosomes. The m6A methylation of genes involved in the m6A modification machinery and several defense-related phytohormones (jasmonic acid and salicylic acid) pathways was increased in N. lugens-infested rice compared to that in uninfested rice. In contrast, m6A modification levels of growth-related phytohormone (auxin and gibberellin) biosynthesis-related genes were significantly attenuated during N. lugens infestation, accompanied by the down-regulated expression of these transcripts, indicating that rice growth was restricted during N. lugens attack to rapidly optimize resource allocation for plant defense. Integrative analysis of the differential patterns of m6A methylation and the corresponding transcripts showed a positive correlation between m6A methylation and transcriptional regulation. CONCLUSION The m6A modification is an important strategy for regulating the expression of genes involved in rice defense and growth during rice-N. lugens interactions. These findings provide new ideas for formulating strategies to control herbivorous pests. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Shuai Li
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Jiangsu Key Laboratory for Food and Safety, State Key Laboratory Cultivation Base of Ministry of Science and Technology, Nanjing, China
| | - Xinyang Tan
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Zhen He
- School of Plant Protection, Yangzhou University, Yangzhou, China
| | - Lei Jiang
- School of Plant Protection, Anhui Agricultural University, Hefei, China
| | - Yali Li
- Wuhan Benagen Technology Company Limited, Wuhan, China
| | - Liu Yang
- Wuhan Benagen Technology Company Limited, Wuhan, China
| | - Ary A Hoffmann
- School of BioSciences, Bio21 Institute, University of Melbourne, Parkville, Australia
| | - Chunqing Zhao
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Jichao Fang
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Jiangsu Key Laboratory for Food and Safety, State Key Laboratory Cultivation Base of Ministry of Science and Technology, Nanjing, China
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Rui Ji
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Jiangsu Key Laboratory for Food and Safety, State Key Laboratory Cultivation Base of Ministry of Science and Technology, Nanjing, China
- School of Life Sciences, Anhui Normal University/Key Laboratory for Conservation and Use of Important Biological Resources of Anhui Province, Anhui, China
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14
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Dong K, Wu F, Cheng S, Li S, Zhang F, Xing X, Jin X, Luo S, Feng M, Miao R, Chang Y, Zhang S, You X, Wang P, Zhang X, Lei C, Ren Y, Zhu S, Guo X, Wu C, Yang DL, Lin Q, Cheng Z, Wan J. OsPRMT6a-mediated arginine methylation of OsJAZ1 regulates jasmonate signaling and spikelet development in rice. MOLECULAR PLANT 2024; 17:900-919. [PMID: 38704640 DOI: 10.1016/j.molp.2024.04.014] [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: 12/07/2023] [Revised: 04/04/2024] [Accepted: 04/29/2024] [Indexed: 05/06/2024]
Abstract
Although both protein arginine methylation (PRMT) and jasmonate (JA) signaling are crucial for regulating plant development, the relationship between these processes in the control of spikelet development remains unclear. In this study, we used the CRISPR/Cas9 technology to generate two OsPRMT6a loss-of-function mutants that exhibit various abnormal spikelet structures. Interestingly, we found that OsPRMT6a can methylate arginine residues in JA signal repressors OsJAZ1 and OsJAZ7. We showed that arginine methylation of OsJAZ1 enhances the binding affinity of OsJAZ1 with the JA receptors OsCOI1a and OsCOI1b in the presence of JAs, thereby promoting the ubiquitination of OsJAZ1 by the SCFOsCOI1a/OsCOI1b complex and degradation via the 26S proteasome. This process ultimately releases OsMYC2, a core transcriptional regulator in the JA signaling pathway, to activate or repress JA-responsive genes, thereby maintaining normal plant (spikelet) development. However, in the osprmt6a-1 mutant, reduced arginine methylation of OsJAZ1 impaires the interaction between OsJAZ1 and OsCOI1a/OsCOI1b in the presence of JAs. As a result, OsJAZ1 proteins become more stable, repressing JA responses, thus causing the formation of abnormal spikelet structures. Moreover, we discovered that JA signaling reduces the OsPRMT6a mRNA level in an OsMYC2-dependent manner, thereby establishing a negative feedback loop to balance JA signaling. We further found that OsPRMT6a-mediated arginine methylation of OsJAZ1 likely serves as a switch to tune JA signaling to maintain normal spikelet development under harsh environmental conditions such as high temperatures. Collectively, our study establishes a direct molecular link between arginine methylation and JA signaling in rice.
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Affiliation(s)
- Kun Dong
- State Key Laboratory of Crop Gene Resources and Breeding, National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Fuqing Wu
- State Key Laboratory of Crop Gene Resources and Breeding, National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Siqi Cheng
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Shuai Li
- State Key Laboratory of Crop Gene Resources and Breeding, National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Feng Zhang
- State Key Laboratory of Crop Gene Resources and Breeding, National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xinxin Xing
- State Key Laboratory of Crop Gene Resources and Breeding, National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xin Jin
- State Key Laboratory of Crop Gene Resources and Breeding, National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Sheng Luo
- State Key Laboratory of Crop Gene Resources and Breeding, National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Miao Feng
- State Key Laboratory of Crop Gene Resources and Breeding, National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Rong Miao
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Yanqi Chang
- State Key Laboratory of Crop Gene Resources and Breeding, National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Shuang Zhang
- State Key Laboratory of Crop Gene Resources and Breeding, National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xiaoman You
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Peiran Wang
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Xin Zhang
- State Key Laboratory of Crop Gene Resources and Breeding, National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Cailin Lei
- State Key Laboratory of Crop Gene Resources and Breeding, National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yulong Ren
- State Key Laboratory of Crop Gene Resources and Breeding, National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Shanshan Zhu
- State Key Laboratory of Crop Gene Resources and Breeding, National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xiuping Guo
- State Key Laboratory of Crop Gene Resources and Breeding, National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Chuanyin Wu
- State Key Laboratory of Crop Gene Resources and Breeding, National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Dong-Lei Yang
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Qibing Lin
- State Key Laboratory of Crop Gene Resources and Breeding, National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Zhijun Cheng
- State Key Laboratory of Crop Gene Resources and Breeding, National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Jianmin Wan
- State Key Laboratory of Crop Gene Resources and Breeding, National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China; State Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China.
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15
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Wu Y, Sun Y, Wang W, Xie Z, Zhan C, Jin L, Huang J. OsJAZ10 negatively modulates the drought tolerance by integrating hormone signaling with systemic electrical activity in rice. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 211:108683. [PMID: 38714129 DOI: 10.1016/j.plaphy.2024.108683] [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: 01/22/2024] [Revised: 04/15/2024] [Accepted: 04/30/2024] [Indexed: 05/09/2024]
Abstract
Jasmonic acid (JA) plays crucial functions in plant stress response, and the synergistic interaction between JA and abscisic acid (ABA) signaling is implicated to help plants adapt to environmental challenges, whereas the underlying molecular mechanism still needs to be revealed. Here, we report that OsJAZ10, a repressor in the JA signaling, represses rice drought tolerance via inhibition of JA and ABA biosynthesis. Function loss of OsJAZ10 markedly enhances, while overexpression of OsJAZ10ΔJas reduces rice drought tolerance. The osjaz10 mutant is more sensitive to exogenous ABA and MeJA, and produces higher levels of ABA and JA after drought treatment, indicating OsJAZ10 represses the biosynthesis of these two hormones. Mechanistic study demonstrated that OsJAZ10 physically interacts with OsMYC2. Transient transcriptional regulation assays showed that OsMYC2 activates the expression of ABA-biosynthetic gene OsNCED2, JA-biosynthetic gene OsAOC, and drought-responsive genes OsRAB21 and OsLEA3, while OsJAZ10 prevents OsMYC2 transactivation of these genes. Further, the electrophoretic mobility shift assay (EMSA) confirmed that OsMYC2 directly binds to the promoters of OsNCED2 and OsRAB21. Electrical activity has been proposed to activate JA biosynthesis. Interestingly, OsJAZ10 inhibits the propagation of osmotic stress-elicited systemic electrical signals, indicated by the significantly increased PEG-elicited slow wave potentials (SWPs) in osjaz10 mutant, which is in accordance with the elevated JA levels. Collectively, our findings establish that OsJAZ10 functions as a negative regulator in rice drought tolerance by repressing JA and ABA biosynthesis, and reveal an important mechanism that plants integrate electrical events with hormone signaling to enhance the adaption to environmental stress.
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Affiliation(s)
- Yuanyuan Wu
- Key Laboratory of Biorheological Science and Technology of Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, China.
| | - Ying Sun
- Key Laboratory of Biorheological Science and Technology of Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, China.
| | - Wanmin Wang
- Key Laboratory of Biorheological Science and Technology of Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, China.
| | - Zizhao Xie
- Key Laboratory of Biorheological Science and Technology of Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, China.
| | - Chenghang Zhan
- Key Laboratory of Biorheological Science and Technology of Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, China.
| | - Liang Jin
- Key Laboratory of Biorheological Science and Technology of Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, China.
| | - Junli Huang
- Key Laboratory of Biorheological Science and Technology of Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, China.
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16
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Willige BC, Yoo CY, Saldierna Guzmán JP. What is going on inside of phytochrome B photobodies? THE PLANT CELL 2024; 36:2065-2085. [PMID: 38511271 PMCID: PMC11132900 DOI: 10.1093/plcell/koae084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 12/20/2023] [Accepted: 01/08/2024] [Indexed: 03/22/2024]
Abstract
Plants exhibit an enormous phenotypic plasticity to adjust to changing environmental conditions. For this purpose, they have evolved mechanisms to detect and measure biotic and abiotic factors in their surroundings. Phytochrome B exhibits a dual function, since it serves as a photoreceptor for red and far-red light as well as a thermosensor. In 1999, it was first reported that phytochromes not only translocate into the nucleus but also form subnuclear foci upon irradiation by red light. It took more than 10 years until these phytochrome speckles received their name; these foci were coined photobodies to describe unique phytochrome-containing subnuclear domains that are regulated by light. Since their initial discovery, there has been much speculation about the significance and function of photobodies. Their presumed roles range from pure experimental artifacts to waste deposits or signaling hubs. In this review, we summarize the newest findings about the meaning of phyB photobodies for light and temperature signaling. Recent studies have established that phyB photobodies are formed by liquid-liquid phase separation via multivalent interactions and that they provide diverse functions as biochemical hotspots to regulate gene expression on multiple levels.
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Affiliation(s)
- Björn Christopher Willige
- Department of Soil and Crop Sciences, College of Agricultural Sciences, Colorado State University, Fort Collins, CO 80521, USA
| | - Chan Yul Yoo
- School of Biological Sciences, University of Utah, UT 84112, USA
| | - Jessica Paola Saldierna Guzmán
- Department of Soil and Crop Sciences, College of Agricultural Sciences, Colorado State University, Fort Collins, CO 80521, USA
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17
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Garg A, Srivastava P, Verma PC, Ghosh S. ApCPS2 contributes to medicinal diterpenoid biosynthesis and defense against insect herbivore in Andrographis paniculata. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 342:112046. [PMID: 38395069 DOI: 10.1016/j.plantsci.2024.112046] [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: 08/27/2023] [Revised: 02/16/2024] [Accepted: 02/19/2024] [Indexed: 02/25/2024]
Abstract
Kalmegh (Andrographis paniculata) spatiotemporally produces medicinally-important ent-labdane-related diterpenoids (ent-LRDs); andrographolide (AD), 14-deoxy-11,12-didehydroandrographolide (DDAD), neoandrographolide (NAD). ApCPS1 and ApCPS2, the ent-copalyl pyrophosphate (ent-CPP)-producing class II diterpene synthases (diTPSs) were identified, but their contributions to ent-CPP precursor supply for ent-LRD biosynthesis were not well understood. Here, we characterized ApCPS4, an additional ent-CPP-forming diTPS. Further, we elucidated in planta function of the ent-CPP-producing diTPSs (ApCPS1,2,4) by integrating transcript-metabolite co-profiles, biochemical analysis and gene functional characterization. ApCPS1,2,4 localized to the plastids, where diterpenoid biosynthesis occurs in plants, but ApCPS1,2,4 transcript expression patterns and ent-LRD contents revealed a strong correlation of ApCPS2 expression and ent-LRD accumulation in kalmegh. ApCPS1,2,4 upstream sequences differentially activated β-glucuronidase (GUS) in Arabidopsis and transiently-transformed kalmegh. Similar to higher expression of ApCPS1 in kalmegh stem, ApCPS1 upstream sequence activated GUS in stem/hypocotyl of Arabidopsis and kalmegh. However, ApCPS2,4 upstream sequences weakly activated GUS expression in Arabidopsis, which was not well correlated with ApCPS2,4 transcript expression in kalmegh tissues. Whereas, ApCPS2,4 upstream sequences could activate GUS expression at a considerable level in kalmegh leaf and roots/calyx, respectively, suggesting the involvement of transcriptional regulator(s) of ApCPS2,4 that might participate in kalmegh-specific diterpenoid pathway. Interestingly, ApCPS2-silenced kalmegh showed a drastic reduction in AD, DDAD and NAD contents and compromised defense against insect herbivore Spodoptera litura. However, ent-LRD contents and herbivore defense in ApCPS1 or ApCPS4-silenced plants remained largely unaltered. Overall, these results suggested an important role of ApCPS2 in producing ent-CPP for medicinal ent-LRD biosynthesis and defense against insect herbivore.
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Affiliation(s)
- Anchal Garg
- Plant Biotechnology Division, Council of Scientific and Industrial Research-Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Lucknow 226015, India
| | - Payal Srivastava
- Plant Biotechnology Division, Council of Scientific and Industrial Research-Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Lucknow 226015, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Praveen Chandra Verma
- Molecular Biology and Biotechnology Division, Council of Scientific and Industrial Research-National Botanical Research Institute (CSIR-NBRI), Lucknow 226001, India
| | - Sumit Ghosh
- Plant Biotechnology Division, Council of Scientific and Industrial Research-Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Lucknow 226015, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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18
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Ali J, Mukarram M, Ojo J, Dawam N, Riyazuddin R, Ghramh HA, Khan KA, Chen R, Kurjak D, Bayram A. Harnessing Phytohormones: Advancing Plant Growth and Defence Strategies for Sustainable Agriculture. PHYSIOLOGIA PLANTARUM 2024; 176:e14307. [PMID: 38705723 DOI: 10.1111/ppl.14307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Revised: 04/07/2024] [Accepted: 04/10/2024] [Indexed: 05/07/2024]
Abstract
Phytohormones, pivotal regulators of plant growth and development, are increasingly recognized for their multifaceted roles in enhancing crop resilience against environmental stresses. In this review, we provide a comprehensive synthesis of current research on utilizing phytohormones to enhance crop productivity and fortify their defence mechanisms. Initially, we introduce the significance of phytohormones in orchestrating plant growth, followed by their potential utilization in bolstering crop defences against diverse environmental stressors. Our focus then shifts to an in-depth exploration of phytohormones and their pivotal roles in mediating plant defence responses against biotic stressors, particularly insect pests. Furthermore, we highlight the potential impact of phytohormones on agricultural production while underscoring the existing research gaps and limitations hindering their widespread implementation in agricultural practices. Despite the accumulating body of research in this field, the integration of phytohormones into agriculture remains limited. To address this discrepancy, we propose a comprehensive framework for investigating the intricate interplay between phytohormones and sustainable agriculture. This framework advocates for the adoption of novel technologies and methodologies to facilitate the effective deployment of phytohormones in agricultural settings and also emphasizes the need to address existing research limitations through rigorous field studies. By outlining a roadmap for advancing the utilization of phytohormones in agriculture, this review aims to catalyse transformative changes in agricultural practices, fostering sustainability and resilience in agricultural settings.
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Affiliation(s)
- Jamin Ali
- College of Plant Protection, Jilin Agricultural University, Changchun, PR China
| | - Mohammad Mukarram
- Food and Plant Biology Group, Department of Plant Biology, Universidad de la República, Montevideo, Uruguay
| | - James Ojo
- Department of Crop Production, Kwara State University, Malete, Nigeria
| | - Nancy Dawam
- Department of Zoology, Faculty of Natural and Applied Sciences, Plateau State University Bokkos, Diram, Nigeria
| | | | - Hamed A Ghramh
- Centre of Bee Research and its Products, Research Centre for Advanced Materials Science, King Khalid University, Abha, Saudi Arabia
- Biology Department, Faculty of Science, King Khalid University, Abha, Saudi Arabia
| | - Khalid Ali Khan
- Centre of Bee Research and its Products, Research Centre for Advanced Materials Science, King Khalid University, Abha, Saudi Arabia
- Applied College, King Khalid University, Abha, Saudi Arabia
| | - Rizhao Chen
- College of Plant Protection, Jilin Agricultural University, Changchun, PR China
| | - Daniel Kurjak
- Institute of Forest Ecology, Slovak Academy of Sciences, Zvolen, Slovakia
- Faculty of Forestry, Technical University in Zvolen, Zvolen, Slovakia
| | - Ahmet Bayram
- Plant Protection, Faculty of Agriculture, Technical University in Zvolen, Zvolen, Slovakia
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19
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Shani E, Hedden P, Sun TP. Highlights in gibberellin research: A tale of the dwarf and the slender. PLANT PHYSIOLOGY 2024; 195:111-134. [PMID: 38290048 PMCID: PMC11060689 DOI: 10.1093/plphys/kiae044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 10/30/2023] [Accepted: 11/06/2023] [Indexed: 02/01/2024]
Abstract
It has been almost a century since biologically active gibberellin (GA) was isolated. Here, we give a historical overview of the early efforts in establishing the GA biosynthesis and catabolism pathway, characterizing the enzymes for GA metabolism, and elucidating their corresponding genes. We then highlight more recent studies that have identified the GA receptors and early GA signaling components (DELLA repressors and F-box activators), determined the molecular mechanism of DELLA-mediated transcription reprograming, and revealed how DELLAs integrate multiple signaling pathways to regulate plant vegetative and reproductive development in response to internal and external cues. Finally, we discuss the GA transporters and their roles in GA-mediated plant development.
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Affiliation(s)
- Eilon Shani
- School of Plant Sciences and Food Security, Tel Aviv University, Tel Aviv 69978, Israel
| | - Peter Hedden
- Laboratory of Growth Regulators, Institute of Experimental Botany and Palacky University, 78371 Olomouc, Czech Republic
- Sustainable Soils and Crops, Rothamsted Research, Harpenden AL5 2JQ, UK
| | - Tai-ping Sun
- Department of Biology, Duke University, Durham, NC 27708, USA
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20
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An L, Wang Z, Cui Y, Yao Y, Bai Y, Liu Y, Li X, Yao X, Wu K. Bioinformatics, expression analysis, and functional verification of allene oxide synthase gene HvnAOS1 and HvnAOS2 in qingke. Open Life Sci 2024; 19:20220855. [PMID: 38681731 PMCID: PMC11049745 DOI: 10.1515/biol-2022-0855] [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: 10/17/2023] [Revised: 02/06/2024] [Accepted: 03/13/2024] [Indexed: 05/01/2024] Open
Abstract
Allene oxide synthase (AOS) is a key enzyme involved in the jasmonic acid (JA) synthesis pathway in plants. To explore its function on the regulatory mechanism of JA synthesis, we screened and identified two AOS genes HvnAOS1 and HvnAOS2 in qingke. Both HvnAOS1 and HvnAOS2 contained conserved heme-binding motif, which is most closely related to AtsAOS2, indicating controlled dehydration of fatty acid hydroperoxides to allene oxides. Molecular docking simulations identified the key amino acid sites that were important for heme binding and interaction with 13(S)-HPOT, respectively. The expression pattern also indicated that HvnAOS1 and HvnAOS2 were highly induced by JA, abscisic acid, and salicylic acid. Subcellular localization of HvnAOS1 and HvnAOS2 using transient expression of Agrobacterium tumefaciens showed the green fluorescent protein signal in the cell cytoplasm of the N. benthamiana leaves. Overexpression of HvnAOS1 and HvnAOS2 in Arabidopsis aos mutant restored male fertility and plant resistance to Botrytis cinerea, indicating that HvnAOS1 and HvnAOS2 can restore the functions of AOS in Arabidopsis aos mutant.
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Affiliation(s)
- Likun An
- Academy of Agricultural and Forestry Sciences, Qinghai University, Xining, Qinghai 810016, China
- Laboratory for Research and Utilization of Qinghai Tibet Plateau Germplasm Resources, Xining, Qinghai 810016, China
- Qinghai Key Laboratory of qingke Genetics and Breeding, Xining, Qinghai 810016, China
- Qinghai Subcenter of National qingke Improvement, Xining, Qinghai 810016, China
| | - Ziao Wang
- Academy of Agricultural and Forestry Sciences, Qinghai University, Xining, Qinghai 810016, China
- Laboratory for Research and Utilization of Qinghai Tibet Plateau Germplasm Resources, Xining, Qinghai 810016, China
- Qinghai Key Laboratory of qingke Genetics and Breeding, Xining, Qinghai 810016, China
- Qinghai Subcenter of National qingke Improvement, Xining, Qinghai 810016, China
| | - Yongmei Cui
- Academy of Agricultural and Forestry Sciences, Qinghai University, Xining, Qinghai 810016, China
- Laboratory for Research and Utilization of Qinghai Tibet Plateau Germplasm Resources, Xining, Qinghai 810016, China
- Qinghai Key Laboratory of qingke Genetics and Breeding, Xining, Qinghai 810016, China
- Qinghai Subcenter of National qingke Improvement, Xining, Qinghai 810016, China
| | - Youhua Yao
- Academy of Agricultural and Forestry Sciences, Qinghai University, Xining, Qinghai 810016, China
- Laboratory for Research and Utilization of Qinghai Tibet Plateau Germplasm Resources, Xining, Qinghai 810016, China
- Qinghai Key Laboratory of qingke Genetics and Breeding, Xining, Qinghai 810016, China
- Qinghai Subcenter of National qingke Improvement, Xining, Qinghai 810016, China
| | - Yixiong Bai
- Academy of Agricultural and Forestry Sciences, Qinghai University, Xining, Qinghai 810016, China
- Laboratory for Research and Utilization of Qinghai Tibet Plateau Germplasm Resources, Xining, Qinghai 810016, China
- Qinghai Key Laboratory of qingke Genetics and Breeding, Xining, Qinghai 810016, China
- Qinghai Subcenter of National qingke Improvement, Xining, Qinghai 810016, China
| | - Yuehai Liu
- Academy of Agricultural and Forestry Sciences, Qinghai University, Xining, Qinghai 810016, China
- Laboratory for Research and Utilization of Qinghai Tibet Plateau Germplasm Resources, Xining, Qinghai 810016, China
- Qinghai Key Laboratory of qingke Genetics and Breeding, Xining, Qinghai 810016, China
- Qinghai Subcenter of National qingke Improvement, Xining, Qinghai 810016, China
| | - Xin Li
- Academy of Agricultural and Forestry Sciences, Qinghai University, Xining, Qinghai 810016, China
- Laboratory for Research and Utilization of Qinghai Tibet Plateau Germplasm Resources, Xining, Qinghai 810016, China
- Qinghai Key Laboratory of qingke Genetics and Breeding, Xining, Qinghai 810016, China
- Qinghai Subcenter of National qingke Improvement, Xining, Qinghai 810016, China
| | - Xiaohua Yao
- Academy of Agricultural and Forestry Sciences, Qinghai University, Xining, Qinghai 810016, China
- Laboratory for Research and Utilization of Qinghai Tibet Plateau Germplasm Resources, Xining, Qinghai 810016, China
- Qinghai Key Laboratory of qingke Genetics and Breeding, Xining, Qinghai 810016, China
- Qinghai Subcenter of National qingke Improvement, Xining, Qinghai 810016, China
| | - Kunlun Wu
- Academy of Agricultural and Forestry Sciences, Qinghai University, Xining, Qinghai 810016, China
- Laboratory for Research and Utilization of Qinghai Tibet Plateau Germplasm Resources, Xining, Qinghai 810016, China
- Qinghai Key Laboratory of qingke Genetics and Breeding, Xining, Qinghai 810016, China
- Qinghai Subcenter of National qingke Improvement, Xining, Qinghai 810016, China
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21
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Li N, Xu Y, Lu Y. A Regulatory Mechanism on Pathways: Modulating Roles of MYC2 and BBX21 in the Flavonoid Network. PLANTS (BASEL, SWITZERLAND) 2024; 13:1156. [PMID: 38674565 PMCID: PMC11054080 DOI: 10.3390/plants13081156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 04/05/2024] [Accepted: 04/15/2024] [Indexed: 04/28/2024]
Abstract
Genes of metabolic pathways are individually or collectively regulated, often via unclear mechanisms. The anthocyanin pathway, well known for its regulation by the MYB/bHLH/WDR (MBW) complex but less well understood in its connections to MYC2, BBX21, SPL9, PIF3, and HY5, is investigated here for its direct links to the regulators. We show that MYC2 can activate the structural genes of the anthocyanin pathway but also suppress them (except F3'H) in both Arabidopsis and Oryza when a local MBW complex is present. BBX21 or SPL9 can activate all or part of the structural genes, respectively, but the effects can be largely overwritten by the local MBW complex. HY5 primarily influences expressions of the early genes (CHS, CHI, and F3H). TF-TF relationships can be complex here: PIF3, BBX21, or SPL9 can mildly activate MYC2; MYC2 physically interacts with the bHLH (GL3) of the MBW complex and/or competes with strong actions of BBX21 to lessen a stimulus to the anthocyanin pathway. The dual role of MYC2 in regulating the anthocyanin pathway and a similar role of BBX21 in regulating BAN reveal a network-level mechanism, in which pathways are modulated locally and competing interactions between modulators may tone down strong environmental signals before they reach the network.
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Affiliation(s)
- Nan Li
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; (N.L.); (Y.X.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yunzhang Xu
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; (N.L.); (Y.X.)
- University of Chinese Academy of Sciences, Beijing 100049, China
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining 810016, China
| | - Yingqing Lu
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; (N.L.); (Y.X.)
- University of Chinese Academy of Sciences, Beijing 100049, China
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22
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Ahmad A, Javad S, Iqbal S, Shahzadi K, Gatasheh MK, Javed T. Alleviation potential of green-synthesized selenium nanoparticles for cadmium stress in Solanum lycopersicum L: modulation of secondary metabolites and physiochemical attributes. PLANT CELL REPORTS 2024; 43:113. [PMID: 38573519 DOI: 10.1007/s00299-024-03197-9] [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: 12/18/2023] [Accepted: 01/19/2024] [Indexed: 04/05/2024]
Abstract
KEY MESSAGE Selenium nanoparticles reduce cadmium absorption in tomato roots, mitigating heavy metal effects. SeNPs can efficiently help to enhance growth, yield, and biomolecule markers in cadmium-stressed tomato plants. In the present study, the effects of selenium nanoparticles (SeNPs) were investigated on the tomato plants grown in cadmium-contaminated soil. Nanoparticles were synthesized using water extract of Nigella sativa and were characterized for their size and shape. Two application methods (foliar spray and soil drench) with nanoparticle concentrations of 0, 100, and 300 mg/L were used to observe their effects on cadmium-stressed plants. Growth, yield, biochemical, and stress parameters were studied. Results showed that SeNPs positively affected plant growth, mitigating the negative effects of cadmium stress. Shoot length (SL), root length (RL), number of branches (NB), number of leaves per plant (NL), and leaf area (LA) were significantly reduced by cadmium stress but enhanced by 45, 51, 506, 208, and 82%, respectively, by soil drench treatment of SeNPs. Similarly, SeNPs increased the fruit yield (> 100%) and fruit weight (> 100%), and decreased the days to fruit initiation in tomato plants. Pigments were also positively affected by the SeNPs, particularly in foliar treatment. Lycopene content was also enhanced by the addition of NPs (75%). Furthermore, the addition of SeNPs improved the ascorbic acid, protein, phenolic, flavonoid, and proline contents of the tomato plants under cadmium stress, whereas stress enzymes also showed enhanced activities under cadmium stress. It is concluded from the present study that the addition of selenium nanoparticles enhanced the growth and yield of Cd-stressed plants by reducing the absorption of cadmium and increasing the stress management of plants.
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Affiliation(s)
- Asma Ahmad
- Department of Botany, Lahore College for Women University, Lahore, Pakistan
| | - Sumera Javad
- Department of Botany, Lahore College for Women University, Lahore, Pakistan.
| | - Sumera Iqbal
- Department of Botany, Lahore College for Women University, Lahore, Pakistan
| | - Kiran Shahzadi
- Department of Botany, Lahore College for Women University, Lahore, Pakistan
| | - Mansour K Gatasheh
- Department of Biochemistry, College of Science, King Saud University, P.O. Box 2455, 11451, Riyadh, Saudi Arabia
| | - Talha Javed
- Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China
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23
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Peng C, Xu H, Xie S, Zhong X, Chen L, He Y, Li Z, Zhou Y, Duan L. Unveiling the Regulatory Role of miRNAs in Internode Elongation: Integrated Analysis of MicroRNA and mRNA Expression Profiles across Diverse Dwarfing Treatments in Maize ( Zea mays L.). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:7533-7545. [PMID: 38527761 DOI: 10.1021/acs.jafc.3c09507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
MicroRNAs are crucial regulators of gene expression in maize. However, the mechanisms through which miRNAs control internode elongation remain poorly understood. This study engineered varying levels of internode elongation inhibition, revealing that dwarfing treatments diminished gibberellin levels, curtailed cell longitudinal growth, and slowed the rate of internode elongation. Comprehensive transcriptome and miRNA profiling of the internode elongation zone showed gene expression changes that paralleled the extent of the internode length reduction. We identified 543 genes and 29 miRNAs with significant correlations to internode length, predominantly within families, including miR164 and miR396. By incorporating target gene expression levels, we pinpointed nine miRNA-mRNA pairs that are significantly associated with the regulation of the internode elongation. The inhibitory effects of these miRNAs on their target genes were confirmed through dual-luciferase reporter assays. Overexpression of miR164h in maize resulted in increased internode and cell length, suggesting a novel genetic avenue for manipulating plant stature. These miRNAs may also serve as precise spatiotemporal regulators for in vitro plant development.
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Affiliation(s)
- Chuanxi Peng
- State Key Laboratory of Plant Environmental Resilience, Engineering Research Center of Plant Growth Regulator, Ministry of Education & College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Haidong Xu
- State Key Laboratory of Plant Environmental Resilience, Engineering Research Center of Plant Growth Regulator, Ministry of Education & College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Shipeng Xie
- State Key Laboratory of Plant Environmental Resilience, Engineering Research Center of Plant Growth Regulator, Ministry of Education & College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Xingyu Zhong
- State Key Laboratory of Plant Environmental Resilience, Engineering Research Center of Plant Growth Regulator, Ministry of Education & College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Limei Chen
- Center for Crop Functional Genomics and Molecular Breeding, China Agricultural University, Beijing 100193, China
| | - Yan He
- National Maize Improvement Center of China, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Zhaohu Li
- State Key Laboratory of Plant Environmental Resilience, Engineering Research Center of Plant Growth Regulator, Ministry of Education & College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Yuyi Zhou
- State Key Laboratory of Plant Environmental Resilience, Engineering Research Center of Plant Growth Regulator, Ministry of Education & College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Liusheng Duan
- State Key Laboratory of Plant Environmental Resilience, Engineering Research Center of Plant Growth Regulator, Ministry of Education & College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
- College of Plant Science and Technology, Beijing University of Agriculture, Beijing 102206, China
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24
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Dey S, Sen Raychaudhuri S. Methyl jasmonate improves selenium tolerance via regulating ROS signalling, hormonal crosstalk and phenylpropanoid pathway in Plantago ovata. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 209:108533. [PMID: 38520967 DOI: 10.1016/j.plaphy.2024.108533] [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: 01/11/2024] [Revised: 02/28/2024] [Accepted: 03/13/2024] [Indexed: 03/25/2024]
Abstract
Selenium (Se) toxicity is an emerging contaminant of global concern. It is known to cause oxidative stress, affecting plant growth and yield. Plantago ovata, a major cash crop known for its medicinal properties, is often cultivated in Se-contaminated soil. Thus, the aim of this study was to evaluate the use of methyl jasmonate (MeJA) seed priming technique to mitigate Se-induced phytotoxicity. The results demonstrated that Se stress inhibited P. ovata growth, biomass and lowered chlorophyll content in a dose-dependent manner. Treatment with 1 μM MeJA enhanced the antioxidant defence system via ROS signalling and upregulated key enzymes of phenylpropanoid pathway, PAL (1.9 times) and CHI (5.4 times) in comparison to control. Caffeic acid, Vanillic acid, Chlorogenic acid, Coumaric acid and Luteoloside were the most abundant polyphenols. Enzymatic antioxidants involved in ROS scavenging, such as CAT (up to 1.3 times) and GPOX (up to 1.4 times) were raised, while SOD (by 0.6 times) was reduced. There was an upregulation of growth-inducible hormones, IAA (up to 2.1 fold) and GA (up to 1.5 fold) whereas, the stress-responsive hormones ABA (by 0.6 fold) and SA (by 0.5 fold) were downregulated. The alleviation of Se toxicity was also evident from the decrease in H2O2 and MDA contents under MeJA treatment. These findings suggest that MeJA can effectively improve Se tolerance and nutraceutical value in P. ovata by modulating the phytohormone regulatory network, redox homeostasis and elicits accumulation of polyphenols. Therefore, MeJA seed priming could be an efficient way to enhance stress resilience and sustainable crop production.
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Affiliation(s)
- Sankalan Dey
- Department of Biophysics, Molecular Biology and Bioinformatics, University of Calcutta, 92, A.P.C. Road, Kolkata - 700009, West Bengal, India
| | - Sarmistha Sen Raychaudhuri
- Department of Biophysics, Molecular Biology and Bioinformatics, University of Calcutta, 92, A.P.C. Road, Kolkata - 700009, West Bengal, India.
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25
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Li L, Chen J, Sun Z. Exploring the shared pathogenic strategies of independently evolved effectors across distinct plant viruses. Trends Microbiol 2024:S0966-842X(24)00058-1. [PMID: 38521726 DOI: 10.1016/j.tim.2024.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/28/2024] [Accepted: 03/01/2024] [Indexed: 03/25/2024]
Abstract
Plants have developed very diverse strategies to defend themselves against viral pathogens, among which plant hormones play pivotal roles. In response, some viruses have also deployed multifunctional viral effectors that effectively hijack key component hubs to counter or evade plant immune surveillance. Although significant progress has been made toward understanding counter-defense strategies that manipulate plant hormone regulatory molecules, these efforts have often been limited to an individual virus or specific host target/pathway. This review provides new insights into broad-spectrum antiviral responses in rice triggered by key components of phytohormone signaling, and highlights the common features of counter-defense strategies employed by distinct rice-infecting RNA viruses. These strategies involve the secretion of multifunctional virulence effectors that target the sophisticated phytohormone system, dampening immune responses by engaging with the same host targets. Additionally, the review provides an in-depth exploration of various viral effectors, emphasizing tertiary structure-based research and shared host targets. Understanding these conserved characteristics in detail may pave the way for molecular drug design, opening new opportunities to enhance broad-spectrum antiviral trials through precise engineering.
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Affiliation(s)
- Lulu Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo, 315211, China
| | - Jianping Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo, 315211, China
| | - Zongtao Sun
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo, 315211, China.
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26
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Zhang M, Yang B, Wang Y, Yu F. CrJAT1 Regulates Endogenous JA Signaling for Modulating Monoterpenoid Indole Alkaloid Biosynthesis in Catharanthus roseus. Genes (Basel) 2024; 15:324. [PMID: 38540383 PMCID: PMC10970522 DOI: 10.3390/genes15030324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 02/27/2024] [Accepted: 02/29/2024] [Indexed: 06/14/2024] Open
Abstract
Many monoterpenoid indole alkaloids (MIAs) produced in Catharanthus roseus have demonstrated biological activities and clinical potential. However, their complex biosynthesis pathway in plants leads to low accumulation, limiting therapeutic applications. Efforts to elucidate the MIA biosynthetic regulatory mechanism have focused on improving accumulation levels. Previous studies revealed that jasmonic acid (JA), an important plant hormone, effectively promotes MIA accumulation by inducing the expression of MIA biosynthesis and transport genes. Nevertheless, excessive JA signaling can strongly inhibit plant growth, decreasing MIA productivity in C. roseus. Therefore, identifying key components balancing growth and MIA production in the JA signaling pathway is imperative for effective pharmaceutical production. Here, we identify a homolog of the jasmonate transporter 1, CrJAT1, through co-expression and phylogenetic analyses. Further investigation demonstrated that CrJAT1 can activate JA signaling to promote MIA accumulation without compromising growth. The potential role of CrJAT1 in redistributing intra/inter-cellular JA and JA-Ile may calibrate signaling to avoid inhibition, representing a promising molecular breeding target in C. roseus to optimize the balance between growth and specialized metabolism for improved MIA production.
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Affiliation(s)
- Mengxia Zhang
- School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, China; (M.Z.); (B.Y.); (Y.W.)
| | - Bingrun Yang
- School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, China; (M.Z.); (B.Y.); (Y.W.)
| | - Yanyan Wang
- School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, China; (M.Z.); (B.Y.); (Y.W.)
| | - Fang Yu
- School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, China; (M.Z.); (B.Y.); (Y.W.)
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang 110866, China
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27
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Li Y, Cao Y, Fan Y, Fan G. Comprehensive Analysis of the GRAS Gene Family in Paulownia fortunei and the Response of DELLA Proteins to Paulownia Witches' Broom. Int J Mol Sci 2024; 25:2425. [PMID: 38397102 PMCID: PMC10888722 DOI: 10.3390/ijms25042425] [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: 01/14/2024] [Revised: 02/10/2024] [Accepted: 02/16/2024] [Indexed: 02/25/2024] Open
Abstract
The GRAS (GAI\RGA\SCL) gene family encodes plant-specific transcription factors that play crucial roles in plant growth and development, stress tolerance, and hormone network regulation. Plant dwarfing symptom is mainly regulated by DELLA proteins of the GRAS gene subfamily. In this study, the association between the GRAS gene family and Paulownia witches' broom (PaWB) was investigated. A total of 79 PfGRAS genes were identified using bioinformatics methods and categorized into 11 groups based on amino acid sequences. Tandem duplication and fragment duplication were found to be the main modes of amplification of the PfGRAS gene family. Gene structure analysis showed that more than 72.1% of the PfGRASs had no introns. The genes PfGRAS12/18/58 also contained unique DELLA structural domains; only PfGRAS12, which showed significant response to PaWB phytoplasma infection in stems, showed significant tissue specificity and responded to gibberellin (GA3) in PaWB-infected plants. We found that the internodes were significantly elongated under 100 µmol·L-1 GA3 treatment for 30 days. The subcellular localization analysis indicated that PfGRAS12 is located in the nucleus and cell membrane. Yeast two-hybrid (Y2H) and bimolecular fluorescence complementation (BiFC) assays confirmed that PfGRAS12 interacted with PfJAZ3 in the nucleus. Our results will lay a foundation for further research on the functions of the PfGRAS gene family and for genetic improvement and breeding of PaWB-resistant trees.
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Affiliation(s)
- Yixiao Li
- College of Forestry, Henan Agricultural University, Zhengzhou 450002, China; (Y.L.); (Y.C.); (Y.F.)
- Institute of Paulownia, Henan Agricultural University, Zhengzhou 450002, China
| | - Yabing Cao
- College of Forestry, Henan Agricultural University, Zhengzhou 450002, China; (Y.L.); (Y.C.); (Y.F.)
- Institute of Paulownia, Henan Agricultural University, Zhengzhou 450002, China
| | - Yujie Fan
- College of Forestry, Henan Agricultural University, Zhengzhou 450002, China; (Y.L.); (Y.C.); (Y.F.)
- Institute of Paulownia, Henan Agricultural University, Zhengzhou 450002, China
| | - Guoqiang Fan
- College of Forestry, Henan Agricultural University, Zhengzhou 450002, China; (Y.L.); (Y.C.); (Y.F.)
- Institute of Paulownia, Henan Agricultural University, Zhengzhou 450002, China
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28
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Li ZY, Ma N, Zhang FJ, Li LZ, Li HJ, Wang XF, Zhang Z, You CX. Functions of Phytochrome Interacting Factors (PIFs) in Adapting Plants to Biotic and Abiotic Stresses. Int J Mol Sci 2024; 25:2198. [PMID: 38396875 PMCID: PMC10888771 DOI: 10.3390/ijms25042198] [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: 01/06/2024] [Revised: 02/03/2024] [Accepted: 02/04/2024] [Indexed: 02/25/2024] Open
Abstract
Plants possess the remarkable ability to sense detrimental environmental stimuli and launch sophisticated signal cascades that culminate in tailored responses to facilitate their survival, and transcription factors (TFs) are closely involved in these processes. Phytochrome interacting factors (PIFs) are among these TFs and belong to the basic helix-loop-helix family. PIFs are initially identified and have now been well established as core regulators of phytochrome-associated pathways in response to the light signal in plants. However, a growing body of evidence has unraveled that PIFs also play a crucial role in adapting plants to various biological and environmental pressures. In this review, we summarize and highlight that PIFs function as a signal hub that integrates multiple environmental cues, including abiotic (i.e., drought, temperature, and salinity) and biotic stresses to optimize plant growth and development. PIFs not only function as transcription factors to reprogram the expression of related genes, but also interact with various factors to adapt plants to harsh environments. This review will contribute to understanding the multifaceted functions of PIFs in response to different stress conditions, which will shed light on efforts to further dissect the novel functions of PIFs, especially in adaption to detrimental environments for a better survival of plants.
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Affiliation(s)
- Zhao-Yang Li
- College of Horticulture Science and Engineering, State Key Laboratory of Wheat Improvement, Shandong Agricultural University, Tai’an 271000, China; (Z.-Y.L.); (N.M.); (F.-J.Z.); (L.-Z.L.); (H.-J.L.); (X.-F.W.)
| | - Ning Ma
- College of Horticulture Science and Engineering, State Key Laboratory of Wheat Improvement, Shandong Agricultural University, Tai’an 271000, China; (Z.-Y.L.); (N.M.); (F.-J.Z.); (L.-Z.L.); (H.-J.L.); (X.-F.W.)
| | - Fu-Jun Zhang
- College of Horticulture Science and Engineering, State Key Laboratory of Wheat Improvement, Shandong Agricultural University, Tai’an 271000, China; (Z.-Y.L.); (N.M.); (F.-J.Z.); (L.-Z.L.); (H.-J.L.); (X.-F.W.)
- Department of Horticulture, College of Agriculture, Shihezi University, Shihezi 832003, China
| | - Lian-Zhen Li
- College of Horticulture Science and Engineering, State Key Laboratory of Wheat Improvement, Shandong Agricultural University, Tai’an 271000, China; (Z.-Y.L.); (N.M.); (F.-J.Z.); (L.-Z.L.); (H.-J.L.); (X.-F.W.)
| | - Hao-Jian Li
- College of Horticulture Science and Engineering, State Key Laboratory of Wheat Improvement, Shandong Agricultural University, Tai’an 271000, China; (Z.-Y.L.); (N.M.); (F.-J.Z.); (L.-Z.L.); (H.-J.L.); (X.-F.W.)
| | - Xiao-Fei Wang
- College of Horticulture Science and Engineering, State Key Laboratory of Wheat Improvement, Shandong Agricultural University, Tai’an 271000, China; (Z.-Y.L.); (N.M.); (F.-J.Z.); (L.-Z.L.); (H.-J.L.); (X.-F.W.)
| | - Zhenlu Zhang
- College of Horticulture Science and Engineering, State Key Laboratory of Wheat Improvement, Shandong Agricultural University, Tai’an 271000, China; (Z.-Y.L.); (N.M.); (F.-J.Z.); (L.-Z.L.); (H.-J.L.); (X.-F.W.)
| | - Chun-Xiang You
- College of Horticulture Science and Engineering, State Key Laboratory of Wheat Improvement, Shandong Agricultural University, Tai’an 271000, China; (Z.-Y.L.); (N.M.); (F.-J.Z.); (L.-Z.L.); (H.-J.L.); (X.-F.W.)
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An JP, Xu RR, Wang XN, Zhang XW, You CX, Han Y. MdbHLH162 connects the gibberellin and jasmonic acid signals to regulate anthocyanin biosynthesis in apple. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2024; 66:265-284. [PMID: 38284786 DOI: 10.1111/jipb.13608] [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: 09/14/2023] [Revised: 12/09/2023] [Accepted: 01/03/2024] [Indexed: 01/30/2024]
Abstract
Anthocyanins are secondary metabolites induced by environmental stimuli and developmental signals. The positive regulators of anthocyanin biosynthesis have been reported, whereas the anthocyanin repressors have been neglected. Although the signal transduction pathways of gibberellin (GA) and jasmonic acid (JA) and their regulation of anthocyanin biosynthesis have been investigated, the cross-talk between GA and JA and the antagonistic mechanism of regulating anthocyanin biosynthesis remain to be investigated. In this study, we identified the anthocyanin repressor MdbHLH162 in apple and revealed its molecular mechanism of regulating anthocyanin biosynthesis by integrating the GA and JA signals. MdbHLH162 exerted passive repression by interacting with MdbHLH3 and MdbHLH33, which are two recognized positive regulators of anthocyanin biosynthesis. MdbHLH162 negatively regulated anthocyanin biosynthesis by disrupting the formation of the anthocyanin-activated MdMYB1-MdbHLH3/33 complexes and weakening transcriptional activation of the anthocyanin biosynthetic genes MdDFR and MdUF3GT by MdbHLH3 and MdbHLH33. The GA repressor MdRGL2a antagonized MdbHLH162-mediated inhibition of anthocyanins by sequestering MdbHLH162 from the MdbHLH162-MdbHLH3/33 complex. The JA repressors MdJAZ1 and MdJAZ2 interfered with the antagonistic regulation of MdbHLH162 by MdRGL2a by titrating the formation of the MdRGL2a-MdbHLH162 complex. Our findings reveal that MdbHLH162 integrates the GA and JA signals to negatively regulate anthocyanin biosynthesis. This study provides new information for discovering more anthocyanin biosynthesis repressors and explores the cross-talk between hormone signals.
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Affiliation(s)
- Jian-Ping An
- Apple technology innovation center of Shandong Province, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, 271018, China
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Hubei Hongshan Laboratory, The Innovative Academy of Seed Design of Chinese Academy of Sciences, Wuhan, 430074, China
| | - Rui-Rui Xu
- College of Biology and Oceanography, Weifang University, Weifang, 261061, China
| | - Xiao-Na Wang
- Apple technology innovation center of Shandong Province, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, 271018, China
| | - Xiao-Wei Zhang
- Apple technology innovation center of Shandong Province, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, 271018, China
| | - Chun-Xiang You
- Apple technology innovation center of Shandong Province, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, 271018, China
| | - Yuepeng Han
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Hubei Hongshan Laboratory, The Innovative Academy of Seed Design of Chinese Academy of Sciences, Wuhan, 430074, China
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30
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Vega-Arroy JD, Herrera-Estrella A, Ovando-Vázquez C, Casas-Flores S. Inferring co-expression networks of Arabidopsis thaliana genes during their interaction with Trichoderma spp. Sci Rep 2024; 14:2466. [PMID: 38291044 PMCID: PMC10827721 DOI: 10.1038/s41598-023-48332-w] [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: 06/07/2023] [Accepted: 11/25/2023] [Indexed: 02/01/2024] Open
Abstract
Fungi of the Trichoderma genus are called "biostimulants" because they promote plant growth and development and induce disease resistance. We used conventional transcriptome and gene co-expression analyses to understand the molecular response of the plant Arabidopsis thaliana to inoculation with Trichoderma atroviride or Trichoderma virens. The transcriptional landscape of the plant during the interaction with these fungi showed a reduction in functions such as reactive oxygen species production, defense mechanisms against pathogens, and hormone signaling. T. virens, as opposed to T. atroviride, was more effective at downregulating genes related to terpenoid metabolism, root development, and chemical homeostasis. Through gene co-expression analysis, we found functional gene modules that closely link plant defense with hypoxia. Notably, we found a transcription factor (locus AT2G47520) with two functional domains of interest: a DNA-binding domain and an N-terminal cysteine needed for protein stability under hypoxia. We hypothesize that the transcription factor can bind to the promoter sequence of the GCC-box that is connected to pathogenesis by positioned weight matrix analysis.
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Affiliation(s)
- Javier-David Vega-Arroy
- IPICYT, División de Biología Molecular, Laboratorio de Genómica Funcional y Comparativa, Camino a la Presa San José 2055. Col. Lomas 4 Sección, 78216, San Luis Potosí, SLP, Mexico
- IPICYT, CONAHCYT, Centro Nacional de Supercomputo, Laboratorio de Inteligencia Artificial y Bioinformática, Camino a la Presa San José 2055. Col. Lomas 4 sección, 78216, San Luis Potosí, SLP, Mexico
| | - Alfredo Herrera-Estrella
- Centro de Investigación y de Estudios Avanzados del IPN, unidad de Genómica Avanzada-Langebio, Libramiento Norte carretera Irapuato-León km 9.6, 36824, Irapuato, GTO, Mexico
| | - Cesaré Ovando-Vázquez
- IPICYT, CONAHCYT, Centro Nacional de Supercomputo, Laboratorio de Inteligencia Artificial y Bioinformática, Camino a la Presa San José 2055. Col. Lomas 4 sección, 78216, San Luis Potosí, SLP, Mexico.
| | - Sergio Casas-Flores
- IPICYT, División de Biología Molecular, Laboratorio de Genómica Funcional y Comparativa, Camino a la Presa San José 2055. Col. Lomas 4 Sección, 78216, San Luis Potosí, SLP, Mexico.
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Chen Y, Orlov YL, Chen M. Deciphering the Molecular Mechanism of the Intermediate Secondary Growth and Internode Elongation of the Castor Bean ( Ricinus communis L.) by the Combined Analysis of the Transcriptome and Metabolome. Int J Mol Sci 2024; 25:1053. [PMID: 38256130 PMCID: PMC10816189 DOI: 10.3390/ijms25021053] [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: 12/12/2023] [Revised: 01/10/2024] [Accepted: 01/11/2024] [Indexed: 01/24/2024] Open
Abstract
The length of internodes plays a crucial role in determining the height of the castor plant (Ricinus communis L.). However, the specific mechanisms underlying internode elongation, particularly in the main stem of the castor plant, remain uncertain. To further investigate this, we conducted a study focusing on the internode tissue of the dwarf castor variety 071113, comparing it with the control high-stalk Zhuansihao. Our study included a cytological observation, physiological measurement, transcriptome sequencing, and metabolic determination. Our integrated findings reveal that the dwarf variety 071113 undergoes an earlier lignification development in the main stem and has a more active lignin synthesis pathway during internode intermediate development. In addition, the dwarf variety exhibited lower levels of the plant hormone indole-3-acetic acid (IAA), which had an impact on the development process. Furthermore, we identified specific enzymes and regulators that were enriched in the pathways of the cell cycle, auxin signal transduction, and secondary cell wall synthesis. Using these findings, we developed a model that explained the intermediate secondary growth observed in castor internode elongation and enhanced our comprehension of the dwarfing mechanism of the 071113 variety. This research provides a theoretical groundwork for the future breeding of dwarf castor varieties.
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Affiliation(s)
- Yujie Chen
- College of Life Sciences, Zhejiang University, Hangzhou 310058, China;
- College of Life Sciences and Food Engineering, Inner Mongolia Minzu University, Tongliao 028000, China
| | - Yuriy L. Orlov
- Agrarian and Technological Institute, Peoples’ Friendship University of Russia, 117198 Moscow, Russia;
| | - Ming Chen
- College of Life Sciences, Zhejiang University, Hangzhou 310058, China;
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Deng Y, He Z. The seesaw action: balancing plant immunity and growth. Sci Bull (Beijing) 2024; 69:3-6. [PMID: 38042702 DOI: 10.1016/j.scib.2023.11.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2023]
Affiliation(s)
- Yiwen Deng
- 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, Shanghai 200032, China.
| | - Zuhua He
- 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, Shanghai 200032, China.
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Zu H, Jin G, Kong Y, Li Z, Lou Y, Li R. The N-terminal α2 helix element is critical for the activity of the rice transcription factor MYC2. PLANT MOLECULAR BIOLOGY 2024; 114:2. [PMID: 38189841 DOI: 10.1007/s11103-023-01411-y] [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: 09/21/2023] [Accepted: 11/21/2023] [Indexed: 01/09/2024]
Abstract
Jasmonates (JAs) are a class of phytohormones that play a crucial role in plant growth, development, and environmental stress responses. Central to JA signaling are the MYC2-type transcription factors, as they activate the expression of JA-responsive genes. We previously used CRISPR-Cas9-based genome editing to engineer rice OsMYC2 and yielded a mutant (myc2-5) with a single amino acid (aa) deletion (75I) outside the known functional domains of the protein. This myc2-5 mutant also showed some JA-deficient phenotypes, promoting us to investigate how 75I deletion affects JA responses. The mutation is found in the α2 helix element at the N-terminal of OsMYC2. The deletion of 75I in OsMYC2 rendered plants deficient in most of the JA responses, including root growth, leaf senescence, spikelet development, and resistance to pathogens and herbivores. Biochemical assays revealed that the 75I deletion markedly reduced OsMYC2 protein accumulation, subsequently diminishing its transcriptional activity. However, the deletion did not influence the protein's subcellular localization, DNA-binding capability, or its interactions with JAZ transcriptional repressors and the Mediator complex subunit MED25. Additionally, the screening of seven other deletions in the α2 helix further reinforces the importance of this protein element. Our results highlight the significance of the α2 helix in the N-terminus for OsMYC2's functionality, primarily through modulating its protein levels. This insight expands our knowledge of JA signaling and opens new avenues for research into the yet-to-be-explored domains of the MYC2 protein, with the potential to tailor JA responses in rice and other plant species.
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Affiliation(s)
- Hongyue Zu
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Insect Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Gaochen Jin
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Insect Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Yaze Kong
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Insect Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Zhaoyang Li
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Insect Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Yonggen Lou
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Insect Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Ran Li
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Insect Sciences, Zhejiang University, Hangzhou, 310058, China.
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Ningbo University, Ningbo, 315211, China.
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Lahari Z, van Boerdonk S, Omoboye OO, Reichelt M, Höfte M, Gershenzon J, Gheysen G, Ullah C. Strigolactone deficiency induces jasmonate, sugar and flavonoid phytoalexin accumulation enhancing rice defense against the blast fungus Pyricularia oryzae. THE NEW PHYTOLOGIST 2024; 241:827-844. [PMID: 37974472 DOI: 10.1111/nph.19354] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 10/05/2023] [Indexed: 11/19/2023]
Abstract
Strigolactones (SLs) are carotenoid-derived phytohormones that regulate plant growth and development. While root-secreted SLs are well-known to facilitate plant symbiosis with beneficial microbes, the role of SLs in plant interactions with pathogenic microbes remains largely unexplored. Using genetic and biochemical approaches, we demonstrate a negative role of SLs in rice (Oryza sativa) defense against the blast fungus Pyricularia oryzae (syn. Magnaporthe oryzae). We found that SL biosynthesis and perception mutants, and wild-type (WT) plants after chemical inhibition of SLs, were less susceptible to P. oryzae. Strigolactone deficiency also resulted in a higher accumulation of jasmonates, soluble sugars and flavonoid phytoalexins in rice leaves. Likewise, in response to P. oryzae infection, SL signaling was downregulated, while jasmonate and sugar content increased markedly. The jar1 mutant unable to synthesize jasmonoyl-l-isoleucine, and the coi1-18 RNAi line perturbed in jasmonate signaling, both accumulated lower levels of sugars. However, when WT seedlings were sprayed with glucose or sucrose, jasmonate accumulation increased, suggesting a reciprocal positive interplay between jasmonates and sugars. Finally, we showed that functional jasmonate signaling is necessary for SL deficiency to induce rice defense against P. oryzae. We conclude that a reduction in rice SL content reduces P. oryzae susceptibility by activating jasmonate and sugar signaling pathways, and flavonoid phytoalexin accumulation.
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Affiliation(s)
- Zobaida Lahari
- Department of Biotechnology, Ghent University, Ghent, 9000, Belgium
| | - Sarah van Boerdonk
- Department of Biochemistry, Max Planck Institute for Chemical Ecology, Jena, 07745, Germany
| | - Olumide Owolabi Omoboye
- Department of Plants and Crops, Laboratory of Phytopathology, Ghent University, Ghent, 9000, Belgium
- Department of Microbiology, Faculty of Science, Obafemi Awolowo University, Ile-Ife, 220005, Nigeria
| | - Michael Reichelt
- Department of Biochemistry, Max Planck Institute for Chemical Ecology, Jena, 07745, Germany
| | - Monica Höfte
- Department of Plants and Crops, Laboratory of Phytopathology, Ghent University, Ghent, 9000, Belgium
| | - Jonathan Gershenzon
- Department of Biochemistry, Max Planck Institute for Chemical Ecology, Jena, 07745, Germany
| | | | - Chhana Ullah
- Department of Biochemistry, Max Planck Institute for Chemical Ecology, Jena, 07745, Germany
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Shan L, Oduor AMO, Huang W, Liu Y. Nutrient enrichment promotes invasion success of alien plants via increased growth and suppression of chemical defenses. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2024; 34:e2791. [PMID: 36482783 DOI: 10.1002/eap.2791] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 07/23/2022] [Accepted: 08/25/2022] [Indexed: 06/17/2023]
Abstract
In support of the prediction of the enemy release hypothesis regarding a growth-defense trade-off, invasive alien plants often exhibit greater growth and lower anti-herbivory defenses than native plants. However, it remains unclear how nutrient enrichment of invaded habitats may influence competitive interactions between invasive alien and co-occurring native plants, as well as production of anti-herbivore defense compounds, growth-promoting hormones, and defense-regulating hormones by the two groups of plants. Here, we tested whether: (i) nutrient enrichment causes invasive alien plants to produce greater biomass and lower concentrations of the defense compounds flavonoids and tannins than native plants; and (ii) invasive alien plants produce lower concentrations of a defense-regulating hormone jasmonic acid (JA) and higher concentrations of a growth-promoting hormone gibberellic acid (GA3). In a greenhouse experiment, we grew five congeneric pairs of invasive alien and native plant species under two levels each of nutrient enrichment (low vs. high), simulated herbivory (leaf clipping vs. no-clipping), and competition (alone vs. competition) in 2.5-L pots. In the absence of competition, high-nutrient treatment induced a greater increase in total biomass of invasive alien species than that of native species, whereas the reverse was true under competition as native species benefitted more from nutrient enrichment than invasive alien species. Moreover, high-nutrient treatment caused a greater increase in total biomass of invasive alien species than that of native species in the presence of simulated herbivory. Competition induced higher production of flavonoids and tannins. Simulated herbivory induced higher flavonoid expression in invasive alien plants under low-nutrient than high-nutrient treatments. However, flavonoid concentrations of native plants did not change under nutrient enrichment and simulated herbivory treatments. Invasive alien plants produced higher concentrations of GA3 than native plants. Taken together, these results suggest that impact of nutrient enrichment on growth of invasive alien and co-occurring native plants may depend on the level of competition that they experience. Moreover, invasive alien plants might adjust their flavonoid-based defense more efficiently than native plants in response to variation in soil nutrient availability and herbivory pressure. Our findings suggest that large-scale efforts to reduce nutrient enrichment of invaded habitats may help to control future invasiveness of target alien plant species.
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Affiliation(s)
- Liping Shan
- Key Laboratory of Wetland Ecology and Environment, State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, China
| | - Ayub M O Oduor
- Key Laboratory of Wetland Ecology and Environment, State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, China
- Department of Applied Biology, Technical University of Kenya, Nairobi, Kenya
| | - Wei Huang
- CAS Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China
- Center of Conservation Biology, Core Botanical Gardens, Chinese Academy of Sciences, Wuhan, China
| | - Yanjie Liu
- Key Laboratory of Wetland Ecology and Environment, State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, China
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Krasauskas J, Ganie SA, Al-Husari A, Bindschedler L, Spanu P, Ito M, Devoto A. Jasmonates, gibberellins, and powdery mildew modify cell cycle progression and evoke differential spatiotemporal responses along the barley leaf. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:180-203. [PMID: 37611210 PMCID: PMC10735486 DOI: 10.1093/jxb/erad331] [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: 04/14/2023] [Accepted: 08/22/2023] [Indexed: 08/25/2023]
Abstract
Barley (Hordeum vulgare) is an important cereal crop, and its development, defence, and stress responses are modulated by different hormones including jasmonates (JAs) and the antagonistic gibberellins (GAs). Barley productivity is severely affected by the foliar biotrophic fungal pathogen Blumeria hordei. In this study, primary leaves were used to examine the molecular processes regulating responses to methyl-jasmonate (MeJA) and GA to B. hordei infection along the leaf axis. Flow cytometry, microscopy, and spatiotemporal expression patterns of genes associated with JA, GA, defence, and the cell cycle provided insights on cell cycle progression and on the gradient of susceptibility to B. hordei observed along the leaf. Notably, the combination of B. hordei with MeJA or GA pre-treatment had a different effect on the expression patterns of the analysed genes compared to individual treatments. MeJA reduced susceptibility to B. hordei in the proximal part of the leaf blade. Overall, distinctive spatiotemporal gene expression patterns correlated with different degrees of cell proliferation, growth capacity, responses to hormones, and B. hordei infection along the leaf. Our results highlight the need to further investigate differential spatial and temporal responses to pathogens at the organ, tissue, and cell levels in order to devise effective disease control strategies in crops.
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Affiliation(s)
- Jovaras Krasauskas
- Plant Molecular Science and Centre of Systems and Synthetic Biology, Department of Biological Sciences, Royal Holloway, University of London, Egham, Surrey, TW20 0EX, UK
| | - Showkat Ahmad Ganie
- Plant Molecular Science and Centre of Systems and Synthetic Biology, Department of Biological Sciences, Royal Holloway, University of London, Egham, Surrey, TW20 0EX, UK
| | - Aroub Al-Husari
- Plant Molecular Science and Centre of Systems and Synthetic Biology, Department of Biological Sciences, Royal Holloway, University of London, Egham, Surrey, TW20 0EX, UK
| | - Laurence Bindschedler
- Plant Molecular Science and Centre of Systems and Synthetic Biology, Department of Biological Sciences, Royal Holloway, University of London, Egham, Surrey, TW20 0EX, UK
| | - Pietro Spanu
- Department of Life Sciences, Imperial College London, London, SW7 2AZ, UK
| | - Masaki Ito
- School of Biological Science and Technology, Kanazawa University, Ishikawa 920-1192, Japan
| | - Alessandra Devoto
- Plant Molecular Science and Centre of Systems and Synthetic Biology, Department of Biological Sciences, Royal Holloway, University of London, Egham, Surrey, TW20 0EX, UK
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Khalil MI, Hassan MM, Samanta SC, Chowdhury AK, Hassan MZ, Ahmed NU, Somaddar U, Ghosal S, Robin AHK, Nath UK, Mostofa MG, Burritt DJ, Ha CV, Gupta A, Tran LSP, Saha G. Unraveling the genetic enigma of rice submergence tolerance: Shedding light on the role of ethylene response factor-encoding gene SUB1A-1. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 206:108224. [PMID: 38091930 DOI: 10.1016/j.plaphy.2023.108224] [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: 02/14/2023] [Revised: 11/07/2023] [Accepted: 11/21/2023] [Indexed: 02/15/2024]
Abstract
The world's low-lying rice (Oryza sativa) cultivation areas are under threat of submergence or flash flooding due to global warming. Rice plants manifest a variety of physiological and morphological changes to cope with submergence and hypoxia, including lowering carbohydrate consumption, inhibiting shoot elongation, and forming a thicker leaf gas film during submergence. Functional studies have revealed that submergence tolerance in rice is mainly determined by an ethylene response factor (ERF) transcription factor-encoding gene, namely SUBMERGENCE 1A-1 (SUB1A-1) located in the SUB1 quantitative trait locus. The SUB1A-1-dependent submergence tolerance is manifested through hormonal signaling involving ethylene, gibberellic acid, brassinosteroid, auxin and jasmonic acid. Considerable progress has been made toward the introduction of SUB1A-1 into rice varieties through a conventional marker-assisted backcrossing approach. Here, we review the recent advances in the physiological, biochemical and molecular dynamics of rice submergence tolerance mediated by the 'quiescence strategy'. Thus, the present review aims to provide researchers with insights into the genetics of rice submergence tolerance and future perspectives for designing submergence-resilient plants for sustainable agriculture under the uncertainties of climate change.
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Affiliation(s)
- Md Ibrahim Khalil
- Department of Agronomy, Patuakhali Science and Technology University, Dumki, Patuakhali, 8602, Bangladesh; Department of Genetics and Plant Breeding, Patuakhali Science and Technology University, Dumki, Patuakhali, 8602, Bangladesh.
| | - Md Mahmudul Hassan
- Department of Genetics and Plant Breeding, Patuakhali Science and Technology University, Dumki, Patuakhali, 8602, Bangladesh.
| | - Swadesh Chandra Samanta
- Department of Agronomy, Patuakhali Science and Technology University, Dumki, Patuakhali, 8602, Bangladesh.
| | - Abul Kashem Chowdhury
- Department of Genetics and Plant Breeding, Patuakhali Science and Technology University, Dumki, Patuakhali, 8602, Bangladesh.
| | - Md Zahid Hassan
- Department of Agronomy, Patuakhali Science and Technology University, Dumki, Patuakhali, 8602, Bangladesh.
| | - Nasar Uddin Ahmed
- Department of Genetics and Plant Breeding, Patuakhali Science and Technology University, Dumki, Patuakhali, 8602, Bangladesh.
| | - Uzzal Somaddar
- Department of Agronomy, Patuakhali Science and Technology University, Dumki, Patuakhali, 8602, Bangladesh.
| | - Sharmistha Ghosal
- Plant Breeding Division, Bangladesh Rice Research Institute, Gazipur, 1701, Bangladesh.
| | - Arif Hasan Khan Robin
- Department of Genetics and Plant Breeding, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh.
| | - Ujjal Kumar Nath
- Department of Genetics and Plant Breeding, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh.
| | - Mohammad Golam Mostofa
- MSU-DOE Plant Research Laboratory, Michigan State University, East Lansing, MI, 48824, USA.
| | - David J Burritt
- Department of Botany, University of Otago, Dunedin, 9054, New Zealand.
| | - Chien Van Ha
- Institute of Genomics for Crop Abiotic Stress Tolerance, Department of Plant and Soil Science, Texas Tech University, Lubbock, TX, 79409, USA.
| | - Aarti Gupta
- Institute of Genomics for Crop Abiotic Stress Tolerance, Department of Plant and Soil Science, Texas Tech University, Lubbock, TX, 79409, USA.
| | - Lam-Son Phan Tran
- Institute of Genomics for Crop Abiotic Stress Tolerance, Department of Plant and Soil Science, Texas Tech University, Lubbock, TX, 79409, USA.
| | - Gopal Saha
- Department of Agronomy, Patuakhali Science and Technology University, Dumki, Patuakhali, 8602, Bangladesh.
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Liu Y, Chen Z, Zhang C, Guo J, Liu Q, Yin Y, Hu Y, Xia H, Li B, Sun X, Li Y, Liu X. Gene editing of ZmGA20ox3 improves plant architecture and drought tolerance in maize. PLANT CELL REPORTS 2023; 43:18. [PMID: 38148416 DOI: 10.1007/s00299-023-03090-x] [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: 07/17/2023] [Accepted: 10/19/2023] [Indexed: 12/28/2023]
Abstract
KEY MESSAGE Editing ZmGA20ox3 can achieve the effect similar to applying Cycocel, which can reduce maize plant height and enhance stress resistance. Drought stress, a major plant abiotic stress, is capable of suppressing crop yield performance severely. However, the trade-off between crop drought tolerance and yield performance turns out to be significantly challenging in drought-resistant crop breeding. Several phytohormones [e.g., gibberellin (GA)] have been reported to play a certain role in plant drought response, which also take on critical significance in plant growth and development. In this study, the loss-of-function mutations of GA biosynthesis enzyme ZmGA20ox3 were produced using the CRISPR-Cas9 system in maize. As indicated by the result of 2-year field trials, the above-mentioned mutants displayed semi-dwarfing phenotype with the decrease of GA1, and almost no yield loss was generated compared with wild-type (WT) plants. Interestingly, as revealed by the transcriptome analysis, differential expressed genes (DEGs) were notably enriched in abiotic stress progresses, and biochemical tests indicated the significantly increased ABA, JA, and DIMBOA levels in mutants, suggesting that ZmGA20ox3 may take on vital significance in stress response in maize. The in-depth analysis suggested that the loss function of ZmGA20ox3 can enhance drought tolerance in maize seedling, reduce Anthesis-Silking Interval (ASI) delay while decreasing the yield loss significantly in the field under drought conditions. The results of this study supported that regulating ZmGA20ox3 can improve plant height while enhancing drought resistance in maize, thus serving as a novel method for drought-resistant genetic improvement in maize.
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Affiliation(s)
- Yang Liu
- Institute of Agricultural Biotechnology, Jilin Academy of Agricultural Sciences, Changchun, China
| | - Ziqi Chen
- Institute of Agricultural Biotechnology, Jilin Academy of Agricultural Sciences, Changchun, China
| | - Chuang Zhang
- Institute of Agricultural Biotechnology, Jilin Academy of Agricultural Sciences, Changchun, China
| | - Jia Guo
- Institute of Agricultural Biotechnology, Jilin Academy of Agricultural Sciences, Changchun, China
| | - Qing Liu
- Institute of Agricultural Biotechnology, Jilin Academy of Agricultural Sciences, Changchun, China
| | - Yuejia Yin
- Institute of Agricultural Biotechnology, Jilin Academy of Agricultural Sciences, Changchun, China
| | - Yang Hu
- Institute of Agricultural Biotechnology, Jilin Academy of Agricultural Sciences, Changchun, China
| | - Hanchao Xia
- Institute of Agricultural Biotechnology, Jilin Academy of Agricultural Sciences, Changchun, China
- Jilin Agricultural University, Changchun, China
| | - Bingyang Li
- Institute of Agricultural Biotechnology, Jilin Academy of Agricultural Sciences, Changchun, China
| | - Xiaopeng Sun
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, China.
- Hubei Hongshan Laboratory, Wuhan, China.
| | - Yidan Li
- Institute of Agricultural Biotechnology, Jilin Academy of Agricultural Sciences, Changchun, China.
| | - Xiangguo Liu
- Institute of Agricultural Biotechnology, Jilin Academy of Agricultural Sciences, Changchun, China.
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Pigolev AV, Miroshnichenko DN, Dolgov SV, Alekseeva VV, Pushin AS, Degtyaryova VI, Klementyeva A, Gorbach D, Leonova T, Basnet A, Frolov AA, Savchenko TV. Endogenously Produced Jasmonates Affect Leaf Growth and Improve Osmotic Stress Tolerance in Emmer Wheat. Biomolecules 2023; 13:1775. [PMID: 38136646 PMCID: PMC10742046 DOI: 10.3390/biom13121775] [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: 10/14/2023] [Revised: 11/20/2023] [Accepted: 11/29/2023] [Indexed: 12/24/2023] Open
Abstract
In light of recent climate change, with its rising temperatures and precipitation changes, we are facing the need to increase the valuable crop's tolerance against unfavorable environmental conditions. Emmer wheat is a cereal crop with high nutritional value. We investigated the possibility of improving the stress tolerance of emmer wheat by activating the synthesis of the stress hormone jasmonate by overexpressing two genes of the jasmonate biosynthetic pathway from Arabidopsis thaliana, ALLENE OXIDE SYNTHASE (AtAOS) and OXOPHYTODIENOATE REDUCTASE 3 (AtOPR3). Analyses of jasmonates in intact and mechanically wounded leaves of non-transgenic and transgenic plants showed that the overexpression of each of the two genes resulted in increased wounding-induced levels of jasmonic acid and jasmonate-isoleucine. Against all expectations, the overexpression of AtAOS, encoding a chloroplast-localized enzyme, does not lead to an increased level of the chloroplast-formed 12-oxo-phytodienoic acid (OPDA), suggesting an effective conversion of OPDA to downstream products in wounded emmer wheat leaves. Transgenic plants overexpressing AtAOS or AtOPR3 with increased jasmonate levels show a similar phenotype, manifested by shortening of the first and second leaves and elongation of the fourth leaf, as well as increased tolerance to osmotic stress induced by the presence of the polyethylene glycol (PEG) 6000.
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Affiliation(s)
- Alexey V. Pigolev
- Institute of Basic Biological Problems, Pushchino Scientific Center for Biological Research, Russian Academy of Sciences, 142290 Pushchino, Russia; (A.V.P.); (D.N.M.)
| | - Dmitry N. Miroshnichenko
- Institute of Basic Biological Problems, Pushchino Scientific Center for Biological Research, Russian Academy of Sciences, 142290 Pushchino, Russia; (A.V.P.); (D.N.M.)
- Branch of Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 142290 Pushchino, Russia; (S.V.D.); (V.V.A.); (A.S.P.); (V.I.D.); (A.K.)
| | - Sergey V. Dolgov
- Branch of Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 142290 Pushchino, Russia; (S.V.D.); (V.V.A.); (A.S.P.); (V.I.D.); (A.K.)
| | - Valeria V. Alekseeva
- Branch of Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 142290 Pushchino, Russia; (S.V.D.); (V.V.A.); (A.S.P.); (V.I.D.); (A.K.)
| | - Alexander S. Pushin
- Branch of Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 142290 Pushchino, Russia; (S.V.D.); (V.V.A.); (A.S.P.); (V.I.D.); (A.K.)
| | - Vlada I. Degtyaryova
- Branch of Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 142290 Pushchino, Russia; (S.V.D.); (V.V.A.); (A.S.P.); (V.I.D.); (A.K.)
| | - Anna Klementyeva
- Branch of Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 142290 Pushchino, Russia; (S.V.D.); (V.V.A.); (A.S.P.); (V.I.D.); (A.K.)
| | - Daria Gorbach
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany; (D.G.); (T.L.); (A.A.F.)
- Laboratory of Analytical Biochemistry and Biotechnology, Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, 127276 Moscow, Russia
| | - Tatiana Leonova
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany; (D.G.); (T.L.); (A.A.F.)
| | - Aditi Basnet
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany; (D.G.); (T.L.); (A.A.F.)
| | - Andrej A. Frolov
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany; (D.G.); (T.L.); (A.A.F.)
- Laboratory of Analytical Biochemistry and Biotechnology, Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, 127276 Moscow, Russia
| | - Tatyana V. Savchenko
- Institute of Basic Biological Problems, Pushchino Scientific Center for Biological Research, Russian Academy of Sciences, 142290 Pushchino, Russia; (A.V.P.); (D.N.M.)
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40
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Leibman-Markus M, Schneider A, Gupta R, Marash I, Rav-David D, Carmeli-Weissberg M, Elad Y, Bar M. Immunity priming uncouples the growth-defense trade-off in tomato. Development 2023; 150:dev201158. [PMID: 37882831 DOI: 10.1242/dev.201158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 09/25/2023] [Indexed: 10/27/2023]
Abstract
Plants have developed an array of mechanisms to protect themselves against pathogen invasion. The deployment of defense mechanisms is imperative for plant survival, but can come at the expense of plant growth, leading to the 'growth-defense trade-off' phenomenon. Following pathogen exposure, plants can develop resistance to further attack. This is known as induced resistance, or priming. Here, we investigated the growth-defense trade-off, examining how defense priming via systemic acquired resistance (SAR), or induced systemic resistance (ISR), affects tomato development and growth. We found that defense priming can promote, rather than inhibit, plant development, and that defense priming and growth trade-offs can be uncoupled. Cytokinin response was activated during induced resistance, and found to be required for the observed growth and disease resistance resulting from ISR activation. ISR was found to have a stronger effect than SAR on plant development. Our results suggest that growth promotion and induced resistance can be co-dependent, and that, in certain cases, defense priming can drive developmental processes and promote plant yield.
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Affiliation(s)
- Meirav Leibman-Markus
- Department of Plant Pathology and Weed Research, Agricultural Research Organization, Volcani Institute, Bet Dagan 50250, Israel
| | - Anat Schneider
- Department of Plant Pathology and Weed Research, Agricultural Research Organization, Volcani Institute, Bet Dagan 50250, Israel
- Department of Plant Pathology and Microbiology, Hebrew University of Jerusalem, Rehovot 7610001, Israel
| | - Rupali Gupta
- Department of Plant Pathology and Weed Research, Agricultural Research Organization, Volcani Institute, Bet Dagan 50250, Israel
| | - Iftah Marash
- Department of Plant Pathology and Weed Research, Agricultural Research Organization, Volcani Institute, Bet Dagan 50250, Israel
- School of Plant Science and Food Security, Tel-Aviv University, Tel-Aviv 69978, Israel
| | - Dalia Rav-David
- Department of Plant Pathology and Weed Research, Agricultural Research Organization, Volcani Institute, Bet Dagan 50250, Israel
| | - Mira Carmeli-Weissberg
- Institute of Plant Sciences, Agricultural Research Organization, Volcani Institute, Bet Dagan 50250, Israel
| | - Yigal Elad
- Department of Plant Pathology and Weed Research, Agricultural Research Organization, Volcani Institute, Bet Dagan 50250, Israel
| | - Maya Bar
- Department of Plant Pathology and Weed Research, Agricultural Research Organization, Volcani Institute, Bet Dagan 50250, Israel
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41
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Paull RE, Ksouri N, Kantar M, Zerpa‐Catanho D, Chen NJ, Uruu G, Yue J, Guo S, Zheng Y, Wai CMJ, Ming R. Differential gene expression during floral transition in pineapple. PLANT DIRECT 2023; 7:e541. [PMID: 38028646 PMCID: PMC10644199 DOI: 10.1002/pld3.541] [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: 12/18/2022] [Revised: 09/20/2023] [Accepted: 09/26/2023] [Indexed: 12/01/2023]
Abstract
Pineapple (Ananas comosus var. comosus) and ornamental bromeliads are commercially induced to flower by treatment with ethylene or its analogs. The apex is transformed from a vegetative to a floral meristem and shows morphological changes in 8 to 10 days, with flowers developing 8 to 10 weeks later. During eight sampling stages ranging from 6 h to 8 days after treatment, 7961 genes were found to exhibit differential expression (DE) after the application of ethylene. In the first 3 days after treatment, there was little change in ethylene synthesis or in the early stages of the ethylene response. Subsequently, three ethylene response transcription factors (ERTF) were up-regulated and the potential gene targets were predicted to be the positive flowering regulator CONSTANS-like 3 (CO), a WUSCHEL gene, two APETALA1/FRUITFULL (AP1/FUL) genes, an epidermal patterning gene, and a jasmonic acid synthesis gene. We confirm that pineapple has lost the flowering repressor FLOWERING LOCUS C. At the initial stages, the SUPPRESSOR OF OVEREXPRESSION OF CONSTANS 1 (SOC1) was not significantly involved in this transition. Another WUSCHEL gene and a PHD homeobox transcription factor, though not apparent direct targets of ERTF, were up-regulated within a day of treatment, their predicted targets being the up-regulated CO, auxin response factors, SQUAMOSA, and histone H3 genes with suppression of abscisic acid response genes. The FLOWERING LOCUS T (FT), TERMINAL FLOWER (TFL), AGAMOUS-like APETELAR (AP2), and SEPETALA (SEP) increased rapidly within 2 to 3 days after ethylene treatment. Two FT genes were up-regulated at the apex and not at the leaf bases after treatment, suggesting that transport did not occur. These results indicated that the ethylene response in pineapple and possibly most bromeliads act directly to promote the vegetative to flower transition via APETALA1/FRUITFULL (AP1/FUL) and its interaction with SPL, FT, TFL, SEP, and AP2. A model based on AP2/ERTF DE and predicted DE target genes was developed to give focus to future research. The identified candidate genes are potential targets for genetic manipulation to determine their molecular role in flower transition.
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Affiliation(s)
- Robert E. Paull
- Tropical Plant & Soil SciencesUniversity of Hawaii at ManoaHonoluluHawaiiUSA
| | - Najla Ksouri
- Laboratory of Genomics, Genetics and Breeding of Fruits and Grapevine, Experimental Aula Dei‐CSICZaragozaSpain
| | - Michael Kantar
- Tropical Plant & Soil SciencesUniversity of Hawaii at ManoaHonoluluHawaiiUSA
| | | | - Nancy Jung Chen
- Tropical Plant & Soil SciencesUniversity of Hawaii at ManoaHonoluluHawaiiUSA
| | - Gail Uruu
- Tropical Plant & Soil SciencesUniversity of Hawaii at ManoaHonoluluHawaiiUSA
| | - Jingjing Yue
- Center for Genomics and BiotechnologyFujian Agriculture and Forestry UniversityFuzhouChina
| | - Shiyong Guo
- State Key Laboratory of Primate Biomedical Research, Institute of Primate Translational MedicineKunming University of Science and TechnologyKunmingYunnanChina
| | - Yun Zheng
- State Key Laboratory of Primate Biomedical Research, Institute of Primate Translational MedicineKunming University of Science and TechnologyKunmingYunnanChina
| | | | - Ray Ming
- Department of Plant BiologyUniversity of Illinois at Urbana‐ChampaignUrbanaIllinoisUSA
- Center for Genomics and BiotechnologyFujian Agriculture and Forestry UniversityFuzhouChina
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42
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Zhou M, Li Y, Cheng Z, Zheng X, Cai C, Wang H, Lu K, Zhu C, Ding Y. Important Factors Controlling Gibberellin Homeostasis in Plant Height Regulation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:15895-15907. [PMID: 37862148 DOI: 10.1021/acs.jafc.3c03560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2023]
Abstract
Plant height is an important agronomic trait that is closely associated with crop yield and quality. Gibberellins (GAs), a class of highly efficient plant growth regulators, play key roles in regulating plant height. Increasing reports indicate that transcriptional regulation is a major point of regulation of the GA pathways. Although substantial knowledge has been gained regarding GA biosynthetic and signaling pathways, important factors contributing to the regulatory mechanisms homeostatically controlling GA levels remain to be elucidated. Here, we provide an overview of current knowledge regarding the regulatory network involving transcription factors, noncoding RNAs, and histone modifications involved in GA pathways. We also discuss the mechanisms of interaction between GAs and other hormones in plant height development. Finally, future directions for applying knowledge of the GA hormone in crop breeding are described.
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Affiliation(s)
- Mei Zhou
- Key Laboratory of Specialty Agri-Product Quality and Hazard Controlling Technology of Zhejiang Province, College of Life Sciences, China Jiliang University, Hangzhou 310018, China
| | - Yakun Li
- Key Laboratory of Specialty Agri-Product Quality and Hazard Controlling Technology of Zhejiang Province, College of Life Sciences, China Jiliang University, Hangzhou 310018, China
| | - Zhuowei Cheng
- Key Laboratory of Specialty Agri-Product Quality and Hazard Controlling Technology of Zhejiang Province, College of Life Sciences, China Jiliang University, Hangzhou 310018, China
| | - Xinyu Zheng
- Key Laboratory of Specialty Agri-Product Quality and Hazard Controlling Technology of Zhejiang Province, College of Life Sciences, China Jiliang University, Hangzhou 310018, China
| | - Chong Cai
- Key Laboratory of Specialty Agri-Product Quality and Hazard Controlling Technology of Zhejiang Province, College of Life Sciences, China Jiliang University, Hangzhou 310018, China
| | - Huizhen Wang
- Huangshan Institute of Product Quality Inspection, Huangshan 242700, China
| | - Kaixing Lu
- Ningbo Key Laboratory of Agricultural Germplasm Resources Mining and Environmental Regulation, College of Science and Technology, Ningbo University, Ningbo 315000, China
| | - Cheng Zhu
- Key Laboratory of Specialty Agri-Product Quality and Hazard Controlling Technology of Zhejiang Province, College of Life Sciences, China Jiliang University, Hangzhou 310018, China
| | - Yanfei Ding
- Key Laboratory of Specialty Agri-Product Quality and Hazard Controlling Technology of Zhejiang Province, College of Life Sciences, China Jiliang University, Hangzhou 310018, China
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43
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Zheng Y, Sun Y, Liu Y. Emerging Roles of FHY3 and FAR1 as System Integrators in Plant Development. PLANT & CELL PHYSIOLOGY 2023; 64:1139-1145. [PMID: 37384577 DOI: 10.1093/pcp/pcad068] [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: 03/31/2023] [Revised: 06/07/2023] [Accepted: 06/27/2023] [Indexed: 07/01/2023]
Abstract
FAR-RED ELONGATED HYPOCOTYL3 (FHY3) and its homolog FAR-RED-IMPAIRED RESPONSE1 (FAR1) are transcription factors derived from transposases essential for phytochrome A-mediated light signaling. In addition to their essential role in light signaling, FHY3 and FAR1 also play diverse regulatory roles in plant growth and development, including clock entrainment, seed dormancy and germination, senescence, chloroplast formation, branching, flowering and meristem development. Notably, accumulating evidence indicates that the emerging role of FHY3 and FAR1 in environmental stress signaling has begun to be revealed. In this review, we summarize these recent findings in the context of FHY3 and FAR1 as integrators of light and other developmental and stressful signals. We also discuss the antagonistic action of FHY3/FAR1 and Phytochrome Interating Factors (PIFs) in various cross-talks between light, hormone and environmental cues.
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Affiliation(s)
| | - Yanzhao Sun
- College of Horticulture, China Agricultural University, 2 Yuanmingyuan West Road, Haidian District, Beijing 100094, China
| | - Yang Liu
- College of Horticulture, China Agricultural University, 2 Yuanmingyuan West Road, Haidian District, Beijing 100094, China
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44
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Guo J, Liu S, Jing D, He K, Zhang Y, Li M, Qi J, Wang Z. Genotypic variation in field-grown maize eliminates trade-offs between resistance, tolerance and growth in response to high pressure from the Asian corn borer. PLANT, CELL & ENVIRONMENT 2023; 46:3072-3089. [PMID: 36207806 DOI: 10.1111/pce.14458] [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: 07/26/2022] [Revised: 09/28/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
Insect herbivory challenges plant survival, and coordination of the interactions between growth, herbivore resistance/tolerance is a key problem faced by plants. Based on field experiments into resistance to the Asian corn borer (ACB, Ostrinia furnacalis), we selected 10 inbred maize lines, of which five were resistant and five were susceptible to ACB. We conducted ACB larval bioassays, analysed defensive chemicals, phytohormones, and relative gene expression using RNA-seq and qPCR as well as agronomic traits, and found resistant lines had weaker inducibility, but were more resistant after ACB attack than susceptible lines. Resistance was related to high levels of major benzoxazinoids, but was not related to induced levels of JA or JA-Ile. Following combination analyses of transcriptome, metabolome and larval performance data, we discovered three benzoxazinoids biosynthesis-related transcription factors, NAC60, WRKY1 and WRKY46. Protoplast transformation analysis suggested that these may regulate maize defence-growth trade-offs by increasing levels of benzoxazinoids, JA and SA but decreasing IAA. Moreover, the resistance/tolerance-growth trade-offs were not observed in the 10 lines, and genotype-specific metabolic and genetic features probably eliminated the trade-offs. This study highlights the possibility of breeding maize varieties simultaneously with improved defences and higher yield under complex field conditions.
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Affiliation(s)
- Jingfei Guo
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, MOA-CABI Joint Laboratory for Bio-safety, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Shen Liu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, MOA-CABI Joint Laboratory for Bio-safety, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Dapeng Jing
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, MOA-CABI Joint Laboratory for Bio-safety, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Kanglai He
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, MOA-CABI Joint Laboratory for Bio-safety, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yongjun Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, MOA-CABI Joint Laboratory for Bio-safety, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Mingshun Li
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Jinfeng Qi
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Zhenying Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, MOA-CABI Joint Laboratory for Bio-safety, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
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45
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Malhotra B, Kumar P, Bisht NC. Defense versus growth trade-offs: Insights from glucosinolates and their catabolites. PLANT, CELL & ENVIRONMENT 2023; 46:2964-2984. [PMID: 36207995 DOI: 10.1111/pce.14462] [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: 06/22/2022] [Revised: 09/14/2022] [Accepted: 10/03/2022] [Indexed: 06/16/2023]
Abstract
Specialized metabolites are a structurally diverse group of naturally occurring compounds that facilitate plant-environment interactions. Their synthesis and maintenance in plants is overall a resource-demanding process that occurs at the expense of growth and reproduction and typically incurs several costs. Evidence emerging on different specialized compounds suggests that they serve multiple auxiliary functions to influence and moderate primary metabolism in plants. These new functionalities enable them to mediate trade-offs from defenses to growth and also to offset their production and maintenance costs in plants. Recent research on glucosinolates (GSLs), which are specialized metabolites of Brassicales, demonstrates their emerging multifunctionalities to fine-tune plant growth and development under variable environments. Herein, we present findings from the septennium on individual GSLs and their catabolites (GHPs) per se, that work as mobile signals within plants to mediate precise regulations of their primary physiological functions. Both GSLs and GHPs calibrate growth-defense trade-off interactions either synergistically or directly when they function as storage compounds, abiotic stress alleviators, and one-to-one regulators of growth pathways in plants. We finally summarize the overall lessons learned from GSLs and GHPs as a model and raise the most pressing questions to address the molecular-genetic intricacies of specialized metabolite-based trade-offs in plants.
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Affiliation(s)
- Bhanu Malhotra
- National Institute of Plant Genome Research, New Delhi, India
| | - Pawan Kumar
- National Institute of Plant Genome Research, New Delhi, India
| | - Naveen C Bisht
- National Institute of Plant Genome Research, New Delhi, India
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46
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Shi J, Zhang F, Wang Y, Zhang S, Wang F, Ma Y. The cytochrome P450 gene, MdCYP716B1, is involved in regulating plant growth and anthracnose resistance in apple. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2023; 335:111832. [PMID: 37586420 DOI: 10.1016/j.plantsci.2023.111832] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/21/2023] [Accepted: 08/13/2023] [Indexed: 08/18/2023]
Abstract
Apple is one of the main cultivated fruit trees worldwide. Both biotic and abiotic stresses, especially fungal diseases, have serious effects on the growth and fruit quality of apples. Cytochrome P450, the largest protein family in plants, is critical for plant growth and stress responses. However, the function of apple P450 remains poorly understood. In our previous study, 'Hanfu' autotetraploid showed dwarfism and fungal resistance phenotypes compared to 'Hanfu' diploid. Digital gene expression sequencing analysis revealed that the transcript level of MdCYP716B1 was significantly downregulated in the autotetraploid apple cultivar 'Hanfu'. In this study, we identified and cloned the MdCYP716B1 gene from 'Hanfu' apples. The MdCYP716B1 protein fused to a green fluorescent protein was localized in the cytoplasm. We constructed the plant overexpression vector and RNAi vector of MdCYP716B1, and the apple 'GL-3' was transformed by Agrobacterium-mediated transformation to obtain transgenic plants. Overexpressing and RNAi silencing transgenic plants exhibited an increase and decrease in plant height to 'GL-3', respectively. RNAi silencing transgenic plants displayed increased resistance to Colletotrichum gloeosporioides, whereas overexpression transgenic plants were more sensitive to C. gloeosporioides. According to transcriptome analysis, the transcript levels of gibberellin biosynthesis genes were upregulated in MdCYP716B1-overexpression plants. In contrast with 'GL-3', GA3 accumulation was rose in MdCYP716B1-OE lines and impaired in MdCYP716B1-RNAi lines. Collectively, our data indicate that MdCYP716B1 regulates plant growth and resistance to fungal stress.
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Affiliation(s)
- Jiajun Shi
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, PR China
| | - Feng Zhang
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Yangshu Wang
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, PR China
| | - Shuyuan Zhang
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, PR China
| | - Feng Wang
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, PR China.
| | - Yue Ma
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, PR China.
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47
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Zhao Y, Zheng X, Zhang X, Wang W, Cai G, Bi G, Chen S, Sun C, Zhou JM. PIF3 is phosphorylated by MAPK to modulate plant immunity. THE NEW PHYTOLOGIST 2023; 240:372-381. [PMID: 37475167 DOI: 10.1111/nph.19139] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 06/27/2023] [Indexed: 07/22/2023]
Abstract
Surface-localized pattern recognition receptors perceive pathogen-associated molecular patterns (PAMPs) to activate pattern-triggered immunity (PTI). Activation of mitogen-activated protein kinases (MAPKs) represents a major PTI response. Here, we report that Arabidopsis thaliana PIF3 negatively regulates plant defense gene expression and resistance to Pseudomonas syringae DC3000. PAMPs trigger phosphorylation of PIF3. Further study reveals that PIF3 interacts with and is phosphorylated by MPK3/6. By mass spectrometry and site-directed mutagenesis, we identified the corresponding phosphorylation sites which fit for SP motif. We further show that a phospho-mimicking PIF3 variant (PIF36D /pifq) conferred increased susceptibility to P. syringae DC3000 and caused lower levels of defense gene expression in plants. Together, this study reveals that PIF3 is phosphorylated by MPK3/6 and phosphorylation of the SP motif residues is required for its negative regulation on plant immunity.
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Affiliation(s)
- Yan Zhao
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Hunan Academy of Agricultural Sciences, Changsha, 410125, China
| | - Xiaojuan Zheng
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
- CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaojuan Zhang
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Wei Wang
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Gaihong Cai
- National Institute of Biological Sciences, Beijing, 100101, China
| | - Guozhi Bi
- College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - She Chen
- National Institute of Biological Sciences, Beijing, 100101, China
| | - Chuanqing Sun
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Hunan Academy of Agricultural Sciences, Changsha, 410125, China
| | - Jian-Min Zhou
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
- CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, 100049, China
- Hainan Yazhou Bay Seed Laboratory, Sanya, Hainan, 572025, China
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Mugisa I, Karungi J, Musana P, Odama R, Anyanga MO, Edema R, Gibson P, Ssali RT, Campos H, Oloka BM, Yencho GC, Yada B. Heterotic gains, transgressive segregation and fitness cost of sweetpotato weevil resistance expression in a partial diallel cross of sweetpotato. EUPHYTICA: NETHERLANDS JOURNAL OF PLANT BREEDING 2023; 219:110. [PMID: 37780031 PMCID: PMC10533626 DOI: 10.1007/s10681-023-03225-x] [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: 04/12/2023] [Accepted: 08/06/2023] [Indexed: 10/03/2023]
Abstract
Heterosis-exploiting breeding schemes are currently under consideration as a means of accelerating genetic gains in sweetpotato (Ipomoea batatas) breeding. This study was aimed at establishing heterotic gains, fitness costs and transgressive segregation associated with sweetpotato weevil (SPW) resistance in a partial diallel cross of sweetpotato. A total of 1896 clones were tested at two sites, for two seasons each in Uganda. Data on weevil severity (WED), weevil incidence (WI), storage root yield (SRY) and dry matter content (DM) were obtained. Best linear unbiased predictors (BLUPs) for each clone across environments were used to estimate heterotic gains and for regression analyses to establish relationships between key traits. In general, low mid-parent heterotic gains were detected with the highest favorable levels recorded for SRY (14.7%) and WED (- 7.9%). About 25% of the crosses exhibited desirable and significant mid-parent heterosis for weevil resistance. Over 16% of the clones displayed superior transgressive segregation, with the highest percentages recorded for SRY (21%) and WED (18%). A yield penalty of 10% was observed to be associated with SPW resistance whereas no decline in DM was detected in relation to the same. Chances of improving sweetpotato through exploiting heterosis in controlled crosses using parents of mostly similar background are somewhat minimal, as revealed by the low heterotic gains. The yield penalty detected due to SPW resistance suggests that a trade-off may be necessary between maximizing yields and developing weevil-resistant cultivars if the current needs for this crop are to be met in weevil-prone areas.
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Affiliation(s)
- Immaculate Mugisa
- National Crops Resources Research Institute (NaCRRI), NARO, Kampala, Uganda
- Department of Agricultural production, Makerere University, Kampala, Uganda
| | - Jeninah Karungi
- Department of Agricultural production, Makerere University, Kampala, Uganda
| | - Paul Musana
- National Crops Resources Research Institute (NaCRRI), NARO, Kampala, Uganda
| | - Roy Odama
- National Crops Resources Research Institute (NaCRRI), NARO, Kampala, Uganda
| | - Milton O. Anyanga
- National Crops Resources Research Institute (NaCRRI), NARO, Kampala, Uganda
| | - Richard Edema
- Department of Agricultural production, Makerere University, Kampala, Uganda
| | - Paul Gibson
- Department of Agricultural production, Makerere University, Kampala, Uganda
| | | | | | - Bonny M. Oloka
- Department of Horticultural Science, North Carolina State University, Raleigh, NC USA
| | - G. Craig Yencho
- Department of Horticultural Science, North Carolina State University, Raleigh, NC USA
| | - Benard Yada
- National Crops Resources Research Institute (NaCRRI), NARO, Kampala, Uganda
- National Crops Resources Research Institute (NaCRRI), P.O. Box 7084, Namulonge, Kampala, Uganda
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Jin G, Qi J, Zu H, Liu S, Gershenzon J, Lou Y, Baldwin IT, Li R. Jasmonate-mediated gibberellin catabolism constrains growth during herbivore attack in rice. THE PLANT CELL 2023; 35:3828-3844. [PMID: 37392473 PMCID: PMC10533328 DOI: 10.1093/plcell/koad191] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 06/12/2023] [Accepted: 06/13/2023] [Indexed: 07/03/2023]
Abstract
Plant defense against herbivores is costly and often associated with growth repression. The phytohormone jasmonate (JA) plays a central role in prioritizing defense over growth during herbivore attack, but the underlying mechanisms remain unclear. When brown planthoppers (BPH, Nilaparvata lugens) attack rice (Oryza sativa), growth is dramatically suppressed. BPH infestation also increases inactive gibberellin (GA) levels and transcripts of GA 2-oxidase (GA2ox) genes, 2 (GA2ox3 and GA2ox7) of which encode enzymes that catalyze the conversion of bioactive GAs to inactive GAs in vitro and in vivo. Mutation of these GA2oxs diminishes BPH-elicited growth restriction without affecting BPH resistance. Phytohormone profiling and transcriptome analyses revealed that GA2ox-mediated GA catabolism was enhanced by JA signaling. The transcript levels of GA2ox3 and GA2ox7 were significantly attenuated under BPH attack in JA biosynthesis (allene oxide cyclase [aoc]) or signaling-deficient (myc2) mutants. In contrast, GA2ox3 and GA2ox7 expression was increased in MYC2 overexpression lines. MYC2 directly binds to the G-boxes in the promoters of both GA2ox genes to regulate their expression. We conclude that JA signaling simultaneously activates defense responses and GA catabolism to rapidly optimize resource allocation in attacked plants and provides a mechanism for phytohormone crosstalk.
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Affiliation(s)
- Gaochen Jin
- State Key Laboratory of Rice Biology, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jinfeng Qi
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Hongyue Zu
- State Key Laboratory of Rice Biology, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China
| | - Shuting Liu
- State Key Laboratory of Rice Biology, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jonathan Gershenzon
- Department of Biochemistry, Max Planck Institute for Chemical Ecology, Jena 07745, Germany
| | - Yonggen Lou
- State Key Laboratory of Rice Biology, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China
| | - Ian T Baldwin
- Department of Molecular Ecology, Max Planck Institute for Chemical Ecology, Jena 07745, Germany
| | - Ran Li
- State Key Laboratory of Rice Biology, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China
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50
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Janicka M, Reda M, Mroczko E, Wdowikowska A, Kabała K. Jasmonic Acid Effect on Cucumis sativus L. Growth Is Related to Inhibition of Plasma Membrane Proton Pump and the Uptake and Assimilation of Nitrates. Cells 2023; 12:2263. [PMID: 37759486 PMCID: PMC10526807 DOI: 10.3390/cells12182263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 09/01/2023] [Accepted: 09/11/2023] [Indexed: 09/29/2023] Open
Abstract
When plants are exposed to environmental stress, their growth is inhibited. Under such conditions, controlled inhibition of growth is beneficial for plant survival. Jasmonic acid (JA) is a well-known phytohormone that limits plant growth, which has been confirmed in several species. However, its role in cucumber seedlings has not yet been comprehensively investigated. For this reason, we aimed to determine the involvement of JA in the regulation of proteins crucial for growth including plasma membrane proton pump (PM H+-ATPase), PM nitrate transporters, and nitrate reductase (NR). Treatment of cucumber seedlings with JA not only limited their growth but also increased the H2O2 content in their roots. The main sources of ROS generated for signalling purposes are PM NADPH oxidase (RBOH) and superoxide dismutase (SOD). Exposure of seedlings to JA induced the expression of some CsRBOH and SOD encoding genes, suggesting that ROS signalling can be activated by JA. As a consequence of JA exposure, the activity of all analysed proteins was inhibited and the expression of their genes was modified. The results indicate that reduction of PM H+-ATPase activity and the related decrease in nitrate uptake and assimilation are responsible for the root growth retardation of JA-treated plants.
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Affiliation(s)
| | | | | | | | - Katarzyna Kabała
- Department of Plant Molecular Physiology, Faculty of Biological Sciences, University of Wrocław, Kanonia 6/8, 50-328 Wrocław, Poland; (M.J.); (M.R.); (E.M.); (A.W.)
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