1
|
John S, Apelt F, Kumar A, Acosta IF, Bents D, Annunziata MG, Fichtner F, Gutjahr C, Mueller-Roeber B, Olas JJ. The transcription factor HSFA7b controls thermomemory at the shoot apical meristem by regulating ethylene biosynthesis and signaling in Arabidopsis. PLANT COMMUNICATIONS 2024; 5:100743. [PMID: 37919897 PMCID: PMC10943549 DOI: 10.1016/j.xplc.2023.100743] [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: 05/08/2023] [Revised: 10/24/2023] [Accepted: 11/01/2023] [Indexed: 11/04/2023]
Abstract
The shoot apical meristem (SAM) is responsible for overall shoot growth by generating all aboveground structures. Recent research has revealed that the SAM displays an autonomous heat stress (HS) memory of a previous non-lethal HS event. Considering the importance of the SAM for plant growth, it is essential to determine how its thermomemory is mechanistically controlled. Here, we report that HEAT SHOCK TRANSCRIPTION FACTOR A7b (HSFA7b) plays a crucial role in this process in Arabidopsis, as the absence of functional HSFA7b results in the temporal suppression of SAM activity after thermopriming. We found that HSFA7b directly regulates ethylene response at the SAM by binding to the promoter of the key ethylene signaling gene ETHYLENE-INSENSITIVE 3 to establish thermotolerance. Moreover, we demonstrated that HSFA7b regulates the expression of ETHYLENE OVERPRODUCER 1 (ETO1) and ETO1-LIKE 1, both of which encode ethylene biosynthesis repressors, thereby ensuring ethylene homeostasis at the SAM. Taken together, these results reveal a crucial and tissue-specific role for HSFA7b in thermomemory at the Arabidopsis SAM.
Collapse
Affiliation(s)
- Sheeba John
- University of Potsdam, Institute of Biochemistry and Biology, Karl-Liebknecht-Straße 24-25, Haus 20, 14476 Potsdam, Germany; Max Planck Institute of Molecular Plant Physiology, Am Muehlenberg 1, 14476 Potsdam, Germany
| | - Federico Apelt
- Max Planck Institute of Molecular Plant Physiology, Am Muehlenberg 1, 14476 Potsdam, Germany
| | - Amit Kumar
- Laboratory of Molecular Biology, Wageningen University, 6700 AP Wageningen, the Netherlands
| | - Ivan F Acosta
- Max Planck Institute of Molecular Plant Physiology, Am Muehlenberg 1, 14476 Potsdam, Germany
| | - Dominik Bents
- Max Planck Institute of Molecular Plant Physiology, Am Muehlenberg 1, 14476 Potsdam, Germany
| | - Maria Grazia Annunziata
- University of Potsdam, Institute of Biochemistry and Biology, Karl-Liebknecht-Straße 24-25, Haus 20, 14476 Potsdam, Germany
| | - Franziska Fichtner
- Max Planck Institute of Molecular Plant Physiology, Am Muehlenberg 1, 14476 Potsdam, Germany
| | - Caroline Gutjahr
- Max Planck Institute of Molecular Plant Physiology, Am Muehlenberg 1, 14476 Potsdam, Germany
| | - Bernd Mueller-Roeber
- University of Potsdam, Institute of Biochemistry and Biology, Karl-Liebknecht-Straße 24-25, Haus 20, 14476 Potsdam, Germany; Max Planck Institute of Molecular Plant Physiology, Am Muehlenberg 1, 14476 Potsdam, Germany; Center of Plant Systems Biology and Biotechnology (CPSBB), 14 St. Knyaz Boris 1 Pokrastitel Str., 4023 Plovdiv, Bulgaria.
| | - Justyna J Olas
- University of Potsdam, Institute of Biochemistry and Biology, Karl-Liebknecht-Straße 24-25, Haus 20, 14476 Potsdam, Germany.
| |
Collapse
|
2
|
Xie S, Luo H, Huang W, Jin W, Dong Z. Striking a growth-defense balance: Stress regulators that function in maize development. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2024; 66:424-442. [PMID: 37787439 DOI: 10.1111/jipb.13570] [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: 08/27/2023] [Accepted: 10/01/2023] [Indexed: 10/04/2023]
Abstract
Maize (Zea mays) cultivation is strongly affected by both abiotic and biotic stress, leading to reduced growth and productivity. It has recently become clear that regulators of plant stress responses, including the phytohormones abscisic acid (ABA), ethylene (ET), and jasmonic acid (JA), together with reactive oxygen species (ROS), shape plant growth and development. Beyond their well established functions in stress responses, these molecules play crucial roles in balancing growth and defense, which must be finely tuned to achieve high yields in crops while maintaining some level of defense. In this review, we provide an in-depth analysis of recent research on the developmental functions of stress regulators, focusing specifically on maize. By unraveling the contributions of these regulators to maize development, we present new avenues for enhancing maize cultivation and growth while highlighting the potential risks associated with manipulating stress regulators to enhance grain yields in the face of environmental challenges.
Collapse
Affiliation(s)
- Shiyi Xie
- Maize Engineering and Technology Research Center of Hunan Province, College of Agronomy, Hunan Agricultural University, Changsha, 410128, China
- State Key Laboratory of Maize Bio-breeding, National Maize Improvement Center, Frontiers Science Center for Molecular Design Breeding, China Agricultural University, Beijing, 100193, China
| | - Hongbing Luo
- Maize Engineering and Technology Research Center of Hunan Province, College of Agronomy, Hunan Agricultural University, Changsha, 410128, China
| | - Wei Huang
- State Key Laboratory of Maize Bio-breeding, National Maize Improvement Center, Frontiers Science Center for Molecular Design Breeding, China Agricultural University, Beijing, 100193, China
| | - Weiwei Jin
- State Key Laboratory of Maize Bio-breeding, National Maize Improvement Center, Frontiers Science Center for Molecular Design Breeding, China Agricultural University, Beijing, 100193, China
- Tianjin Key Laboratory of Intelligent Breeding of Major Crops, Fresh Corn Research Center of BTH, College of Agronomy & Resources and Environment, Tianjin Agricultural University, Tianjin, 300384, China
| | - Zhaobin Dong
- State Key Laboratory of Maize Bio-breeding, National Maize Improvement Center, Frontiers Science Center for Molecular Design Breeding, China Agricultural University, Beijing, 100193, China
| |
Collapse
|
3
|
Yang Z, Cao Y, Shi Y, Qin F, Jiang C, Yang S. Genetic and molecular exploration of maize environmental stress resilience: Toward sustainable agriculture. MOLECULAR PLANT 2023; 16:1496-1517. [PMID: 37464740 DOI: 10.1016/j.molp.2023.07.005] [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: 05/08/2023] [Revised: 07/03/2023] [Accepted: 07/15/2023] [Indexed: 07/20/2023]
Abstract
Global climate change exacerbates the effects of environmental stressors, such as drought, flooding, extreme temperatures, salinity, and alkalinity, on crop growth and grain yield, threatening the sustainability of the food supply. Maize (Zea mays) is one of the most widely cultivated crops and the most abundant grain crop in production worldwide. However, the stability of maize yield is highly dependent on environmental conditions. Recently, great progress has been made in understanding the molecular mechanisms underlying maize responses to environmental stresses and in developing stress-resilient varieties due to advances in high-throughput sequencing technologies, multi-omics analysis platforms, and automated phenotyping facilities. In this review, we summarize recent advances in dissecting the genetic factors and networks that contribute to maize abiotic stress tolerance through diverse strategies. We also discuss future challenges and opportunities for the development of climate-resilient maize varieties.
Collapse
Affiliation(s)
- Zhirui Yang
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Yibo Cao
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Yiting Shi
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Feng Qin
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China.
| | - Caifu Jiang
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China.
| | - Shuhua Yang
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China.
| |
Collapse
|
4
|
Naing AH, Baek S, Campol JR, Kang H, Kim CK. Loss of ACO4 in petunia improves abiotic stress tolerance by reducing the deleterious effects of stress-induced ethylene. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 203:107998. [PMID: 37678091 DOI: 10.1016/j.plaphy.2023.107998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/07/2023] [Accepted: 09/01/2023] [Indexed: 09/09/2023]
Abstract
To investigate the role of ethylene (ET) in abiotic stress tolerance in petunia cv. 'Mirage Rose', petunia plants in which the ET biosynthesis gene 1-aminocyclopropane-1-carboxylic acid oxidase 4 (ACO4) was knocked out (phaco4 mutants) and wild-type (WT) plants were exposed to heat and drought conditions. Loss of function of ACO4 significantly delayed leaf senescence and chlorosis under heat and drought stress by maintaining the SPAD values and the relative water content, indicating a greater stress tolerance of phaco4 mutants than that of WT plants. This tolerance was related to the lower ET and reactive oxygen species levels in the mutants than in WT plants. Furthermore, the stress-induced expression of genes related to ET signal transduction, antioxidant and proline activities, heat response, and biosynthesis of abscisic acid was higher in the mutants than in WT plants, indicating a greater stress tolerance in the former than in the latter. These results demonstrate the deleterious effects of stress-induced ET on plant growth and provide a better physiological and molecular understanding of the role of stress ET in the abiotic stress response of petunia. Because the loss of function of ACO4 in petunia improved stress tolerance, we suggest that ACO4 plays a vital role in stress-induced leaf senescence and acts as a negative regulator of abiotic stress tolerance.
Collapse
Affiliation(s)
- Aung Htay Naing
- Department of Horticultural Science, Kyungpook National University, Daegu, 41566, South Korea
| | - Sangcheol Baek
- Department of Horticultural Science, Kyungpook National University, Daegu, 41566, South Korea
| | - Jova Riza Campol
- Department of Horticultural Science, Kyungpook National University, Daegu, 41566, South Korea
| | - Hyunhee Kang
- Department of Horticultural Science, Kyungpook National University, Daegu, 41566, South Korea
| | - Chang Kil Kim
- Department of Horticultural Science, Kyungpook National University, Daegu, 41566, South Korea.
| |
Collapse
|
5
|
Singh A, Pandey H, Pandey S, Lal D, Chauhan D, Aparna, Antre SH, B S, Kumar A. Drought stress in maize: stress perception to molecular response and strategies for its improvement. Funct Integr Genomics 2023; 23:296. [PMID: 37697159 DOI: 10.1007/s10142-023-01226-6] [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: 07/28/2023] [Revised: 08/29/2023] [Accepted: 08/31/2023] [Indexed: 09/13/2023]
Abstract
Given the future demand for food crops, increasing crop productivity in drought-prone rainfed areas has become essential. Drought-tolerant varieties are warranted to solve this problem in major crops, with drought tolerance as a high-priority trait for future research. Maize is one such crop affected by drought stress, which limits production, resulting in substantial economic losses. It became a more serious issue due to global climate change. The most drought sensitive among all stages of maize is the reproductive stages and the most important for overall maize production. The exact molecular basis of reproductive drought sensitivity remains unclear due to genes' complex regulation of drought stress. Understanding the molecular biology and signaling of the unexplored area of reproductive drought tolerance will provide an opportunity to develop climate-smart drought-tolerant next-generation maize cultivars. In recent decades, significant progress has been made in maize to understand the drought tolerance mechanism. However, improving maize drought tolerance through breeding is ineffective due to the complex nature and multigenic control of drought traits. With the help of advanced breeding techniques, molecular genetics, and a precision genome editing approach like CRISPR-Cas, candidate genes for drought-tolerant maize can be identified and targeted. This review summarizes the effects of drought stress on each growth stage of maize, potential genes, and transcription factors that determine drought tolerance. In addition, we discussed drought stress sensing, its molecular mechanisms, different approaches to developing drought-resistant maize varieties, and how molecular breeding and genome editing will help with the current unpredictable climate change.
Collapse
Affiliation(s)
- Ashutosh Singh
- Centre for Advanced Studies On Climate Change, Dr. Rajendra Prasad Central Agricultural University, Pusa, Samastipur, Bihar, 848125, India.
| | | | - Saurabh Pandey
- Department of Agriculture, Guru Nanak Dev University, Amritsar, Punjab, 143005, India.
| | - Dalpat Lal
- College of Agriculture, Jodhpur Agriculture University, Jodhpur, Rajasthan, 342304, India
| | - Divya Chauhan
- Banasthali University, Radha Kishanpura, Rajasthan, 304022, India
| | - Aparna
- Departments of Agriculture, Jagan Nath University, Jaipur, Rajasthan, 303901, India
| | - Suresh H Antre
- Advanced Centre of Plant Biotechnology, UAS, GKVK, Bangalore, Karnataka, 560065, India
| | - Santhosh B
- Centre for Advanced Studies On Climate Change, Dr. Rajendra Prasad Central Agricultural University, Pusa, Samastipur, Bihar, 848125, India
| | - Amarjeet Kumar
- Department of Genetics and Plant Breeding, MTTC & VTC, Selesih, CAU, Imphal, 795001, India
| |
Collapse
|
6
|
Messina CD, Gho C, Hammer GL, Tang T, Cooper M. Two decades of harnessing standing genetic variation for physiological traits to improve drought tolerance in maize. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:4847-4861. [PMID: 37354091 PMCID: PMC10474595 DOI: 10.1093/jxb/erad231] [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: 03/06/2023] [Accepted: 06/15/2023] [Indexed: 06/26/2023]
Abstract
We review approaches to maize breeding for improved drought tolerance during flowering and grain filling in the central and western US corn belt and place our findings in the context of results from public breeding. Here we show that after two decades of dedicated breeding efforts, the rate of crop improvement under drought increased from 6.2 g m-2 year-1 to 7.5 g m-2 year-1, closing the genetic gain gap with respect to the 8.6 g m-2 year-1 observed under water-sufficient conditions. The improvement relative to the long-term genetic gain was possible by harnessing favourable alleles for physiological traits available in the reference population of genotypes. Experimentation in managed stress environments that maximized the genetic correlation with target environments was key for breeders to identify and select for these alleles. We also show that the embedding of physiological understanding within genomic selection methods via crop growth models can hasten genetic gain under drought. We estimate a prediction accuracy differential (Δr) above current prediction approaches of ~30% (Δr=0.11, r=0.38), which increases with increasing complexity of the trait environment system as estimated by Shannon information theory. We propose this framework to inform breeding strategies for drought stress across geographies and crops.
Collapse
Affiliation(s)
- Carlos D Messina
- Horticultural Sciences Department, University of Florida, Gainesville, FL, USA
- ARC Centre of Excellence for Plant Success in Nature and Agriculture, The University of Queensland, Brisbane, Qld 4072, Australia
| | - Carla Gho
- School of Agriculture & Food Sciences, The University of Queensland, Brisbane, Qld 4072, Australia
| | - Graeme L Hammer
- ARC Centre of Excellence for Plant Success in Nature and Agriculture, The University of Queensland, Brisbane, Qld 4072, Australia
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane, Qld 4072, Australia
| | - Tom Tang
- Corteva Agrisciences, Johnston, IA, USA
| | - Mark Cooper
- ARC Centre of Excellence for Plant Success in Nature and Agriculture, The University of Queensland, Brisbane, Qld 4072, Australia
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane, Qld 4072, Australia
| |
Collapse
|
7
|
Munns R, Millar AH. Seven plant capacities to adapt to abiotic stress. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:4308-4323. [PMID: 37220077 PMCID: PMC10433935 DOI: 10.1093/jxb/erad179] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 05/11/2023] [Indexed: 05/25/2023]
Abstract
Abiotic stresses such as drought and heat continue to impact crop production in a warming world. This review distinguishes seven inherent capacities that enable plants to respond to abiotic stresses and continue growing, although at a reduced rate, to achieve a productive yield. These are the capacities to selectively take up essential resources, store them and supply them to different plant parts, generate the energy required for cellular functions, conduct repairs to maintain plant tissues, communicate between plant parts, manage existing structural assets in the face of changed circumstances, and shape-shift through development to be efficient in different environments. By illustration, we show how all seven plant capacities are important for reproductive success of major crop species during drought, salinity, temperature extremes, flooding, and nutrient stress. Confusion about the term 'oxidative stress' is explained. This allows us to focus on the strategies that enhance plant adaptation by identifying key responses that can be targets for plant breeding.
Collapse
Affiliation(s)
- Rana Munns
- Australian Research Council Centre of Excellence in Plant Energy Biology, School of Molecular Sciences, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia
| | - A Harvey Millar
- Australian Research Council Centre of Excellence in Plant Energy Biology, School of Molecular Sciences, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia
| |
Collapse
|
8
|
Kopecká R, Kameniarová M, Černý M, Brzobohatý B, Novák J. Abiotic Stress in Crop Production. Int J Mol Sci 2023; 24:ijms24076603. [PMID: 37047573 PMCID: PMC10095105 DOI: 10.3390/ijms24076603] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/23/2023] [Accepted: 03/28/2023] [Indexed: 04/05/2023] Open
Abstract
The vast majority of agricultural land undergoes abiotic stress that can significantly reduce agricultural yields. Understanding the mechanisms of plant defenses against stresses and putting this knowledge into practice is, therefore, an integral part of sustainable agriculture. In this review, we focus on current findings in plant resistance to four cardinal abiotic stressors—drought, heat, salinity, and low temperatures. Apart from the description of the newly discovered mechanisms of signaling and resistance to abiotic stress, this review also focuses on the importance of primary and secondary metabolites, including carbohydrates, amino acids, phenolics, and phytohormones. A meta-analysis of transcriptomic studies concerning the model plant Arabidopsis demonstrates the long-observed phenomenon that abiotic stressors induce different signals and effects at the level of gene expression, but genes whose regulation is similar under most stressors can still be traced. The analysis further reveals the transcriptional modulation of Golgi-targeted proteins in response to heat stress. Our analysis also highlights several genes that are similarly regulated under all stress conditions. These genes support the central role of phytohormones in the abiotic stress response, and the importance of some of these in plant resistance has not yet been studied. Finally, this review provides information about the response to abiotic stress in major European crop plants—wheat, sugar beet, maize, potatoes, barley, sunflowers, grapes, rapeseed, tomatoes, and apples.
Collapse
Affiliation(s)
- Romana Kopecká
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 61300 Brno, Czech Republic
| | - Michaela Kameniarová
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 61300 Brno, Czech Republic
| | - Martin Černý
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 61300 Brno, Czech Republic
| | - Břetislav Brzobohatý
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 61300 Brno, Czech Republic
| | - Jan Novák
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 61300 Brno, Czech Republic
| |
Collapse
|
9
|
Ma F, Li Z, Wang S, Li K, Tang F, Jia J, Zhao Q, Jing P, Yang W, Hua C, Han H, Xu J, Sun R, Zhang J, Han R, Liu X, Fan S, Gu L, Xu K, Li L. The F-box protein OsEBF2 confers the resistance to the brown planthopper (Nilparvata lugens Stål). PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2023; 327:111547. [PMID: 36462682 DOI: 10.1016/j.plantsci.2022.111547] [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: 08/17/2022] [Revised: 11/25/2022] [Accepted: 11/28/2022] [Indexed: 06/17/2023]
Abstract
The brown planthopper (BPH; Nilaparvata lugens) is a piercing-sucking insect pest specific to rice plants and may cause severe declines in rice yields. Therefore, it is of great theoretical significance and practical application value to elucidate the molecular mechanism of rice resistance to BPH. Previous studies have shown that an ethylene (ET) signaling pathway gene, OsEBF1, positively regulates BPH resistance in rice. OsEBF1 is an E3 ligase that mediates the degradation of another ET pathway gene, OsEIL1. OsEBF2 is the homologous gene of OsEBF1, and the sequence identity between the two genes is 78.5%. Our results indicated that OsEBF2 can directly interact with OsEIL1 and positively regulate rice resistance to BPH. More importantly, there were no obvious differences in agronomic traits between WT and OsEBF2OE transgenic lines. The resistance mechanism of the OsEBF2 gene may be to reduce the content of ET in rice by inhibiting the expression of ethylene response factor genes. This study revealed that OsEBF2 is an F-box protein that positively regulates the rice resistance to BPH and can be used as an effective target gene for rice BPH resistance breeding.
Collapse
Affiliation(s)
- Feilong Ma
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou 466001, China
| | - Zixin Li
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou 466001, China
| | - Sayi Wang
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou 466001, China
| | - Kejia Li
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou 466001, China
| | - Fei Tang
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou 466001, China
| | - Jingxuan Jia
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou 466001, China
| | - Qiujin Zhao
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou 466001, China
| | - Peihua Jing
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou 466001, China
| | - Wenqing Yang
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou 466001, China
| | - Congmin Hua
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou 466001, China
| | - Haifu Han
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou 466001, China
| | - Jiayin Xu
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou 466001, China
| | - Ruohan Sun
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou 466001, China
| | - Jiaoxin Zhang
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou 466001, China
| | - Rui Han
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou 466001, China
| | - Xiaolong Liu
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou 466001, China
| | - Shaocong Fan
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou 466001, China
| | - Laihong Gu
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou 466001, China
| | - Kedong Xu
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou 466001, China.
| | - Lili Li
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou 466001, China.
| |
Collapse
|
10
|
Azhar W, Khan AR, Salam A, Ulhassan Z, Qi J, Shah G, Liu Y, Chunyan Y, Yang S, Gan Y. Ethylene accelerates copper oxide nanoparticle-induced toxicity at physiological, biochemical, and ultrastructural levels in rice seedlings. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:26137-26149. [PMID: 36350451 DOI: 10.1007/s11356-022-23915-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 10/26/2022] [Indexed: 06/16/2023]
Abstract
The enormous use of metal-based nanoparticles (NPs) in different sectors may result in enhanced accumulation in agricultural soil, which could impose negative effects on crop productivity. Hence, strategies are needed to explore the mechanisms of copper oxide nanoparticle (CuO NP)-induced toxicity in crops. The present study aimed to investigate the involvement of ethylene in CuO NP-induced toxicity in rice seedlings. Here, our results indicate that 450 mg L-1 of CuO NPs induced toxic effects in rice seedlings. Thus, it was evidenced by the reduced plant biomass accumulation, enhanced oxidative stress indicators, and cellular ultrastructural damages. More importantly, the exogenous supply of ethylene biosynthesis and signaling antagonists cobalt (Co) and silver (Ag) respectively provided tolerance and improved the defense system of rice seedlings against CuO NP toxicity. The ethylene antagonists could significantly reduce the extent of ultrastructural and stomatal damage by controlling the ROS accumulation in rice seedlings under CuO NP stress. Furthermore, Co and Ag augmented the antioxidant defense system against CuO NP-induced toxicity. Contrary to that, all oxidative damage attributes were further enhanced exogenous application of ethylene biosynthesis precursor [1-aminocyclopropane-1-carboxylic acid (ACC)] in the presence of CuO NPs. In addition, ACC could increase the CuO NP-induced stomatal and ultrastructural damages by reducing the ROS-scavenging ability in rice seedlings. Taken together, these results indicate the involvement of ethylene in CuO NP-induced toxicity in rice seedlings.
Collapse
Affiliation(s)
- Wardah Azhar
- Zhejiang Key Lab of Crop Germplasm, Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, People's Republic of China
| | - Ali Raza Khan
- Zhejiang Key Lab of Crop Germplasm, Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, People's Republic of China
| | - Abdul Salam
- Zhejiang Key Lab of Crop Germplasm, Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, People's Republic of China
| | - Zaid Ulhassan
- Zhejiang Key Lab of Crop Germplasm, Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, People's Republic of China
| | - Jiaxuan Qi
- Zhejiang Key Lab of Crop Germplasm, Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, People's Republic of China
| | - Gulmeena Shah
- Zhejiang Key Lab of Crop Germplasm, Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, People's Republic of China
| | - Yihua Liu
- College of Agriculture and Forestry Sciences, Linyi University, Linyi, 276000, China
| | - Yang Chunyan
- Zhejiang Key Lab of Crop Germplasm, Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, People's Republic of China
| | - Shuaiqi Yang
- Zhejiang Key Lab of Crop Germplasm, Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, People's Republic of China
| | - Yinbo Gan
- Zhejiang Key Lab of Crop Germplasm, Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, People's Republic of China.
| |
Collapse
|
11
|
Rehman B, Javed J, Rauf M, Khan SA, Arif M, Hamayun M, Gul H, Khilji SA, Sajid ZA, Kim WC, Lee IJ. ACC deaminase-producing endophytic fungal consortia promotes drought stress tolerance in M.oleifera by mitigating ethylene and H 2O 2. FRONTIERS IN PLANT SCIENCE 2022; 13:967672. [PMID: 36618664 PMCID: PMC9814162 DOI: 10.3389/fpls.2022.967672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 11/14/2022] [Indexed: 06/17/2023]
Abstract
INTRODUCTION Drought has become more prevalent due to dramatic climate change worldwide. Consequently, the most compatible fungal communities collaborate to boost plant development and ecophysiological responses under environmental constraints. However, little is known about the specific interactions between non-host plants and endophytic fungal symbionts that produce growth-promoting and stress-alleviating hormones during water deficits. METHODS The current research was rationalized and aimed at exploring the influence of the newly isolated, drought-resistant, ACC deaminase enzyme-producing endophytic fungi Trichoderma gamsii (TP), Fusarium proliferatum (TR), and its consortium (TP+TR) from a xerophytic plant Carthamus oxycantha L. on Moringa oleifera L. grown under water deficit induced by PEG-8000 (8% osmoticum solution). RESULTS The current findings revealed that the co-inoculation promoted a significant enhancement in growth traits such as dry weight (217%), fresh weight (123%), root length (65%), shoot length (53%), carotenoids (87%), and chlorophyll content (76%) in comparison to control plants under water deficit. Total soluble sugars (0.56%), proteins (132%), lipids (43%), flavonoids (52%), phenols (34%), proline (55%), GA3 (86%), IAA (35%), AsA (170%), SA (87%), were also induced, while H2O2 (-45%), ABA (-60%) and ACC level (-77%) was decreased by co-inoculation of TP and TR in M. oleifera plants, compared with the non-inoculated plants under water deficit. The co-inoculum (TP+TR) also induced the antioxidant potential and enzyme activities POX (325%), CAT activity (166%), and AsA (21%), along with a lesser decrease (-2%) in water potential in M. oleifera plants with co-inoculation under water deficit compared with non-inoculated control. The molecular analysis for gene expression unraveled the reduced expression of ethylene biosynthesis and signaling-related genes up to an optimal level, with an induction of antioxidant enzymatic genes by endophytic co-inoculation in M. oleifera plants under water deficit, suggesting their role in drought stress tolerance as an essential regulatory function. CONCLUSION The finding may alert scientists to consider the impacts of optimal reduction of ethylene and induction of antioxidant potential on drought stress tolerance in M. oleifera. Hence, the present study supports the use of compatible endophytic fungi to build a bipartite mutualistic symbiosis in M. oleifera non-host plants to mitigate the negative impacts of water scarcity in arid regions throughout the world.
Collapse
Affiliation(s)
- Bushra Rehman
- Center of Biotechnology and Microbiology, University of Peshawar, Peshawar, Pakistan
| | - Javeria Javed
- Department of Botany, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Mamoona Rauf
- Department of Botany, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Sumera Afzal Khan
- Center of Biotechnology and Microbiology, University of Peshawar, Peshawar, Pakistan
| | - Muhammad Arif
- Department of Biotechnology, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Muhammad Hamayun
- Department of Botany, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Humaira Gul
- Department of Botany, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Sheza Ayaz Khilji
- Department of Botany, Division of Science and Technology, University of Education, Township, Lahore, Pakistan
| | | | - Won-Chan Kim
- Department of Applied Biosciences, Kyungpook National University, Daegu, Republic of Korea
| | - In-Jung Lee
- Department of Applied Biosciences, Kyungpook National University, Daegu, Republic of Korea
| |
Collapse
|
12
|
Nowicka B. Modifications of Phytohormone Metabolism Aimed at Stimulation of Plant Growth, Improving Their Productivity and Tolerance to Abiotic and Biotic Stress Factors. PLANTS (BASEL, SWITZERLAND) 2022; 11:3430. [PMID: 36559545 PMCID: PMC9781743 DOI: 10.3390/plants11243430] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 12/05/2022] [Accepted: 12/06/2022] [Indexed: 06/17/2023]
Abstract
Due to the growing human population, the increase in crop yield is an important challenge for modern agriculture. As abiotic and biotic stresses cause severe losses in agriculture, it is also crucial to obtain varieties that are more tolerant to these factors. In the past, traditional breeding methods were used to obtain new varieties displaying demanded traits. Nowadays, genetic engineering is another available tool. An important direction of the research on genetically modified plants concerns the modification of phytohormone metabolism. This review summarizes the state-of-the-art research concerning the modulation of phytohormone content aimed at the stimulation of plant growth and the improvement of stress tolerance. It aims to provide a useful basis for developing new strategies for crop yield improvement by genetic engineering of phytohormone metabolism.
Collapse
Affiliation(s)
- Beatrycze Nowicka
- Department of Plant Physiology and Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland
| |
Collapse
|
13
|
Molecular Aspects of MicroRNAs and Phytohormonal Signaling in Response to Drought Stress: A Review. Curr Issues Mol Biol 2022; 44:3695-3710. [PMID: 36005149 PMCID: PMC9406886 DOI: 10.3390/cimb44080253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 07/29/2022] [Accepted: 08/10/2022] [Indexed: 11/16/2022] Open
Abstract
Phytohormones play an essential role in plant growth and development in response to environmental stresses. However, plant hormones require a complex signaling network combined with other signaling pathways to perform their proper functions. Thus, multiple phytohormonal signaling pathways are a prerequisite for understanding plant defense mechanism against stressful conditions. MicroRNAs (miRNAs) are master regulators of eukaryotic gene expression and are also influenced by a wide range of plant development events by suppressing their target genes. In recent decades, the mechanisms of phytohormone biosynthesis, signaling, pathways of miRNA biosynthesis and regulation were profoundly characterized. Recent findings have shown that miRNAs and plant hormones are integrated with the regulation of environmental stress. miRNAs target several components of phytohormone pathways, and plant hormones also regulate the expression of miRNAs or their target genes inversely. In this article, recent developments related to molecular linkages between miRNAs and phytohormones were reviewed, focusing on drought stress.
Collapse
|
14
|
Effects of the Rhizosphere Fungus Cunninghamella bertholletiae on the Solanum lycopersicum Response to Diverse Abiotic Stresses. Int J Mol Sci 2022; 23:ijms23168909. [PMID: 36012179 PMCID: PMC9408995 DOI: 10.3390/ijms23168909] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/05/2022] [Accepted: 08/08/2022] [Indexed: 01/20/2023] Open
Abstract
This study examined the efficiency of fungal strain (Cunninghamella bertholletiae) isolated from the rhizosphere of Solanum lycopersicum to reduce symptoms of salinity, drought and heavy metal stresses in tomato plants. In vitro evaluation of C. bertholletiae demonstrated its ability to produce indole-3-Acetic Acid (IAA), ammonia and tolerate varied abiotic stresses on solid media. Tomato plants at 33 days’ old, inoculated with or without C. bertholletiae, were treated with 1.5% sodium chloride, 25% polyethylene glycol, 3 mM cadmium and 3 mM lead for 10 days, and the impact of C. bertholletiae on plant performance was investigated. Inoculation with C. bertholletiae enhanced plant biomass and growth attributes in stressed plants. In addition, C. bertholletiae modulated the physiochemical apparatus of stressed plants by raising chlorophyll, carotenoid, glucose, fructose, and sucrose contents, and reducing hydrogen peroxide, protein, lipid metabolism, amino acid, antioxidant activities, and abscisic acid. Gene expression analysis showed enhanced expression of SlCDF3 and SlICS genes and reduced expression of SlACCase, SlAOS, SlGRAS6, SlRBOHD, SlRING1, SlTAF1, and SlZH13 genes following C. bertholletiae application. In conclusion, our study supports the potential of C. bertholletiae as a biofertilizer to reduce plant damage, improve crop endurance and remediation under stress conditions.
Collapse
|
15
|
Kazerooni EA, Al-Sadi AM, Rashid U, Kim ID, Kang SM, Lee IJ. Salvianolic Acid Modulates Physiological Responses and Stress-Related Genes That Affect Osmotic Stress Tolerance in Glycine max and Zea mays. FRONTIERS IN PLANT SCIENCE 2022; 13:904037. [PMID: 35783988 PMCID: PMC9240475 DOI: 10.3389/fpls.2022.904037] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 05/16/2022] [Indexed: 05/23/2023]
Abstract
Drought is a serious threat worldwide to soybean and maize production. This study was conducted to discern the impact of salvianolic acid treatment on osmotic-stressed soybean (Glycine max L.) and maize (Zea mays L.) seedlings from the perspective of physiochemical and molecular reactions. Examination of varied salvianolic acid concentrations (0, 0.1, 1, 5, 10, and 25 μM) on soybean and maize seedling growth confirmed that the 0.1 and 1 μM concentrations, respectively, showed an improvement in agronomic traits. Likewise, the investigation ascertained how salvianolic acid application could retrieve osmotic-stressed plants. Soybean and maize seedlings were irrigated with water or 25% PEG for 8 days. The results indicated that salvianolic acid application promoted the survival of the 39-day-old osmotic-stressed soybean and maize plants. The salvianolic acid-treated plants retained high photosynthetic pigments, protein, amino acid, fatty acid, sugar, and antioxidant contents, and demonstrated low hydrogen peroxide and lipid contents under osmotic stress conditions. Gene transcription pattern certified that salvianolic acid application led to an increased expression of GmGOGAT, GmUBC2, ZmpsbA, ZmNAGK, ZmVPP1, and ZmSCE1d genes, and a diminished expression of GmMIPS2, GmSOG1, GmACS, GmCKX, ZmPIS, and ZmNAC48 genes. Together, our results indicate the utility of salvianolic acid to enhance the osmotic endurance of soybean and maize plants.
Collapse
Affiliation(s)
- Elham Ahmed Kazerooni
- Department of Applied Biosciences, Kyungpook National University, Daegu, South Korea
| | - Abdullah Mohammed Al-Sadi
- Department of Plant Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, Muscat, Oman
| | - Umer Rashid
- Institute of Nanoscience and Nanotechnology (ION2), Universiti Putra Malaysia, Serdang, Malaysia
| | - Il-Doo Kim
- Department of Applied Biosciences, Kyungpook National University, Daegu, South Korea
| | - Sang-Mo Kang
- Department of Applied Biosciences, Kyungpook National University, Daegu, South Korea
| | - In-Jung Lee
- Department of Applied Biosciences, Kyungpook National University, Daegu, South Korea
| |
Collapse
|
16
|
Viviani A, Spada M, Giordani T, Fambrini M, Pugliesi C. Origin of the genome editing systems: application for crop improvement. Biologia (Bratisl) 2022. [DOI: 10.1007/s11756-022-01142-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
17
|
Chakrabarti M, Nagabhyru P, Schardl CL, Dinkins RD. Differential gene expression in tall fescue tissues in response to water deficit. THE PLANT GENOME 2022; 15:e20199. [PMID: 35322562 DOI: 10.1002/tpg2.20199] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 02/03/2022] [Indexed: 06/14/2023]
Abstract
Tall fescue (Festuca arundinacea Schreb.) is a popular pasture and turf grass particularly known for drought resistance, allowing for its persistence in locations that are unfavorable for other cool-season grasses. Also, its seed-borne fungal symbiont (endophyte) Epichloë coenophiala, which resides in the crown and pseudostem, can be a contributing factor in its drought tolerance. Because it contains the apical meristems, crown survival under drought stress is critical to plant survival as well as the endophyte. In this study, we subjected tall fescue plants with their endophyte to water-deficit stress or, as controls with normal watering, then compared plant transcriptome responses in four vegetative tissues: leaf blades, pseudostem, crown, and roots. A transcript was designated a differentially expressed gene (DEG) if it exhibited at least a twofold expression difference between stress and control samples with an adjusted p value of .001. Pathway analysis of the DEGs across all tissue types included photosynthesis, carbohydrate metabolism, phytohormone biosynthesis and signaling, cellular organization, and a transcriptional regulation. While no specific pathway was observed to be differentially expressed in the crown, genes encoding auxin response factors, nuclear pore anchors, structural maintenance of chromosomes, and class XI myosin proteins were more highly differentially expressed in crown than in the other vegetative tissues, suggesting that regulation in expression of these genes in the crown may aid in survival of the meristems in the crown.
Collapse
Affiliation(s)
- Manohar Chakrabarti
- Dep. of Plant and Soil Sciences, Univ. of Kentucky, Lexington, KY, 40546-0312, USA
| | - Padmaja Nagabhyru
- Dep. of Plant Pathology, Univ. of Kentucky, Lexington, KY, 40546-0312, USA
| | | | - Randy D Dinkins
- USDA-ARS, Forage-Animal Production Research Unit, Lexington, KY, 40546-0091, USA
| |
Collapse
|
18
|
Beasley JT, Bonneau JP, Moreno-Moyano LT, Callahan DL, Howell KS, Tako E, Taylor J, Glahn RP, Appels R, Johnson AAT. Multi-year field evaluation of nicotianamine biofortified bread wheat. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2022; 109:1168-1182. [PMID: 34902177 DOI: 10.1111/tpj.15623] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 11/27/2021] [Indexed: 06/14/2023]
Abstract
Conventional breeding efforts for iron (Fe) and zinc (Zn) biofortification of bread wheat (Triticum aestivum L.) have been hindered by a lack of genetic variation for these traits and a negative correlation between grain Fe and Zn concentrations and yield. We have employed genetic engineering to constitutively express (CE) the rice (Oryza sativa) nicotianamine synthase 2 (OsNAS2) gene and upregulate biosynthesis of two metal chelators - nicotianamine (NA) and 2'-deoxymugineic acid (DMA) - in bread wheat, resulting in increased Fe and Zn concentrations in wholemeal and white flour. Here we describe multi-location confined field trial (CFT) evaluation of a low-copy transgenic CE-OsNAS2 wheat event (CE-1) over 3 years and demonstrate higher concentrations of NA, DMA, Fe, and Zn in CE-1 wholemeal flour, white flour, and white bread and higher Fe bioavailability in CE-1 white flour relative to a null segregant (NS) control. Multi-environment models of agronomic and grain nutrition traits revealed a negative correlation between grain yield and grain Fe, Zn, and total protein concentrations, yet no correlation between grain yield and grain NA and DMA concentrations. White flour Fe bioavailability was positively correlated with white flour NA concentration, suggesting that NA-chelated Fe should be targeted in wheat Fe biofortification efforts.
Collapse
Affiliation(s)
- Jesse T Beasley
- School of BioSciences, The University of Melbourne, Melbourne, Victoria, 3010, Australia
| | - Julien P Bonneau
- School of BioSciences, The University of Melbourne, Melbourne, Victoria, 3010, Australia
| | - Laura T Moreno-Moyano
- School of BioSciences, The University of Melbourne, Melbourne, Victoria, 3010, Australia
| | - Damien L Callahan
- School of Life and Environmental Sciences, Deakin University, Melbourne, Victoria, 3125, Australia
| | - Kate S Howell
- School of Agriculture and Food, The University of Melbourne, Melbourne, Victoria, 3010, Australia
| | - Elad Tako
- Department of Food Science, Cornell University, Stocking Hall, Ithaca, NY, 14853-7201, USA
| | - Julian Taylor
- School of Agriculture, Food and Wine, University of Adelaide, Glen Osmond, South Australia, 5064, Australia
| | - Raymond P Glahn
- Robert W. Holley Center for Agriculture and Health, USDA-ARS, Ithaca, NY, 14853, USA
| | - Rudi Appels
- School of Agriculture and Food, The University of Melbourne, Melbourne, Victoria, 3010, Australia
| | - Alexander A T Johnson
- School of BioSciences, The University of Melbourne, Melbourne, Victoria, 3010, Australia
| |
Collapse
|
19
|
Berrío RT, Nelissen H, Inzé D, Dubois M. Increasing yield on dry fields: molecular pathways with growing potential. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2022; 109:323-341. [PMID: 34695266 PMCID: PMC7612350 DOI: 10.1111/tpj.15550] [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: 07/15/2021] [Revised: 10/08/2021] [Accepted: 10/19/2021] [Indexed: 05/02/2023]
Abstract
Drought stress constitutes one of the major constraints to agriculture all over the world, and its devastating effect is only expected to increase in the following years due to climate change. Concurrently, the increasing food demand in a steadily growing population requires a proportional increase in yield and crop production. In the past, research aimed to increase plant resilience to severe drought stress. However, this often resulted in stunted growth and reduced yield under favorable conditions or moderate drought. Nowadays, drought tolerance research aims to maintain plant growth and yield under drought conditions. Overall, recently deployed strategies to engineer drought tolerance in the lab can be classified into a 'growth-centered' strategy, which focuses on keeping growth unaffected by the drought stress, and a 'drought resilience without growth penalty' strategy, in which the main aim is still to boost drought resilience, while limiting the side effects on plant growth. In this review, we put the scope on these two strategies and some molecular players that were successfully engineered to generate drought-tolerant plants: abscisic acid, brassinosteroids, cytokinins, ethylene, ROS scavenging genes, strigolactones, and aquaporins. We discuss how these pathways participate in growth and stress response regulation under drought. Finally, we present an overview of the current insights and future perspectives in the development of new strategies to improve drought tolerance in the field.
Collapse
Affiliation(s)
- Rubén Tenorio Berrío
- Ghent University, Department of Plant Biotechnology and Bioinformatics, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
| | - Hilde Nelissen
- Ghent University, Department of Plant Biotechnology and Bioinformatics, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
| | - Dirk Inzé
- Ghent University, Department of Plant Biotechnology and Bioinformatics, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
- Corresponding Author: Dirk Inzé VIB Center for Plant Systems Biology Ghent University, Department of Plant Biotechnology Technologiepark 71 B-9052 Ghent (Belgium) Tel.: +32 9 3313800; Fax: +32 9 3313809;
| | - Marieke Dubois
- Ghent University, Department of Plant Biotechnology and Bioinformatics, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
| |
Collapse
|
20
|
Sheoran S, Kaur Y, Kumar S, Shukla S, Rakshit S, Kumar R. Recent Advances for Drought Stress Tolerance in Maize ( Zea mays L.): Present Status and Future Prospects. FRONTIERS IN PLANT SCIENCE 2022; 13:872566. [PMID: 35707615 PMCID: PMC9189405 DOI: 10.3389/fpls.2022.872566] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 04/26/2022] [Indexed: 05/04/2023]
Abstract
Drought stress has severely hampered maize production, affecting the livelihood and economics of millions of people worldwide. In the future, as a result of climate change, unpredictable weather events will become more frequent hence the implementation of adaptive strategies will be inevitable. Through utilizing different genetic and breeding approaches, efforts are in progress to develop the drought tolerance in maize. The recent approaches of genomics-assisted breeding, transcriptomics, proteomics, transgenics, and genome editing have fast-tracked enhancement for drought stress tolerance under laboratory and field conditions. Drought stress tolerance in maize could be considerably improved by combining omics technologies with novel breeding methods and high-throughput phenotyping (HTP). This review focuses on maize responses against drought, as well as novel breeding and system biology approaches applied to better understand drought tolerance mechanisms and the development of drought-tolerant maize cultivars. Researchers must disentangle the molecular and physiological bases of drought tolerance features in order to increase maize yield. Therefore, the integrated investments in field-based HTP, system biology, and sophisticated breeding methodologies are expected to help increase and stabilize maize production in the face of climate change.
Collapse
|
21
|
Chen H, Bullock DA, Alonso JM, Stepanova AN. To Fight or to Grow: The Balancing Role of Ethylene in Plant Abiotic Stress Responses. PLANTS (BASEL, SWITZERLAND) 2021; 11:plants11010033. [PMID: 35009037 PMCID: PMC8747122 DOI: 10.3390/plants11010033] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 12/18/2021] [Accepted: 12/19/2021] [Indexed: 05/04/2023]
Abstract
Plants often live in adverse environmental conditions and are exposed to various stresses, such as heat, cold, heavy metals, salt, radiation, poor lighting, nutrient deficiency, drought, or flooding. To adapt to unfavorable environments, plants have evolved specialized molecular mechanisms that serve to balance the trade-off between abiotic stress responses and growth. These mechanisms enable plants to continue to develop and reproduce even under adverse conditions. Ethylene, as a key growth regulator, is leveraged by plants to mitigate the negative effects of some of these stresses on plant development and growth. By cooperating with other hormones, such as jasmonic acid (JA), abscisic acid (ABA), brassinosteroids (BR), auxin, gibberellic acid (GA), salicylic acid (SA), and cytokinin (CK), ethylene triggers defense and survival mechanisms thereby coordinating plant growth and development in response to abiotic stresses. This review describes the crosstalk between ethylene and other plant hormones in tipping the balance between plant growth and abiotic stress responses.
Collapse
|
22
|
Khan AR, Azhar W, Wu J, Ulhassan Z, Salam A, Zaidi SHR, Yang S, Song G, Gan Y. Ethylene participates in zinc oxide nanoparticles induced biochemical, molecular and ultrastructural changes in rice seedlings. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 226:112844. [PMID: 34619479 DOI: 10.1016/j.ecoenv.2021.112844] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 09/04/2021] [Accepted: 09/27/2021] [Indexed: 05/07/2023]
Abstract
Nowadays, the applications of engineered nanoparticles (ENPs) have been significantly increased, thereby negatively affecting crop production and ultimately contaminating the food chain worldwide. Zinc oxide nanoparticles (ZnO NPs) induced oxidative stress has been clarified in previous studies. But until now, it has not been investigated that how ethylene mediates or participates in ZnO NPs-induced toxicity and related cellular ultrastructural changes in rice seedlings. Here, we reported that 500 mg/L of ZnO NPs reduced the fresh weight (54.75% and 55.64%) and dry weight (40.33% and 47.83%) in shoot and root respectively as compared to control. Furthermore, ZnO NPs (500 mg/L) reduced chlorophyll content (72% Chla, 70% Chlb), induced the stomatal closure and ultrastructural damages by causing oxidative stress in rice seedlings. These cellular damages were significantly increased by exogenous applications of ethylene biosynthesis precursor (ACC) in the presence of ZnO NPs. In contrary, ZnO NPs induced damages on the above-mentioned attributes were reversed through the exogenous supply of ethylene signaling and biosynthesis antagonists such as silver (Ag) and cobalt (Co) respectively. Interestingly, ZnO NPs accelerate ethylene biosynthesis by up-regulating the transcriptome of ethylene biosynthesis responsive genes. The antioxidant enzymes activities and related gene expressions were further increased in ethylene signaling and biosynthesis associated antagonists (Ag and Co) treated seedlings as compared to sole ZnO NPs treatments. In contrary, the above-reported attributes were further decreased by ACC together with ZnO NPs. In a nutshell, ethylene effectively contributes in ZnO NPs induced toxicity and causing ultrastructural and stomatal damage in rice seedlings. Such findings could have potential implications in producing genetic engineered crops, which will be able to tolerate nanoparticles toxicity in the environment.
Collapse
Affiliation(s)
- Ali Raza Khan
- Zhejiang Key Lab of Crop Germplasm, Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Wardah Azhar
- Zhejiang Key Lab of Crop Germplasm, Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Junyu Wu
- Zhejiang Key Lab of Crop Germplasm, Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Zaid Ulhassan
- Zhejiang Key Lab of Crop Germplasm, Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Abdul Salam
- Zhejiang Key Lab of Crop Germplasm, Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Syed Hassan Raza Zaidi
- Zhejiang Key Lab of Crop Germplasm, Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Shuaiqi Yang
- Zhejiang Key Lab of Crop Germplasm, Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Ge Song
- Zhejiang Key Lab of Crop Germplasm, Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Yinbo Gan
- Zhejiang Key Lab of Crop Germplasm, Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China; Hainan Institute of Zhejiang University, Building 11, Yonyou Industrial Park, Yazhou Bay Science and Technology City, Yazhou District, Sanya, Hainan 572025, China.
| |
Collapse
|
23
|
Naing AH, Maung TT, Kim CK. The ACC deaminase-producing plant growth-promoting bacteria: Influences of bacterial strains and ACC deaminase activities in plant tolerance to abiotic stress. PHYSIOLOGIA PLANTARUM 2021; 173:1992-2012. [PMID: 34487352 DOI: 10.1111/ppl.13545] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 08/17/2021] [Accepted: 08/27/2021] [Indexed: 05/02/2023]
Abstract
Global climate change results in frequent occurrences and/or long durations of abiotic stress. Field grown plants are affected by abiotic stress, and they modulate ethylene in response to abiotic stress exposure and use it as a signaling molecule in stress tolerance mechanisms. However, frequent occurrences and/or long durations of stress conditions can cause plants to induce ethylene levels higher than their thresholds, resulting in a reduction of plant growth and crop productivity. The use of plant growth-promoting bacteria (PGPB) that produce 1-aminocyclopropane-1-carboxylate (ACC) deaminase has increased in various plant species to ameliorate the deleterious effects of stress-induced ethylene and promote plant growth despite abiotic stress conditions. Unfortunately, there are restrictions that limit the use of ACC deaminase-producing PGPB to protect plants from abiotic stresses. This review describes how abiotic stress induces ethylene and how stress-induced ethylene adversely affects plant growth. In addition, this review emphasizes the importance of the compatibility of PGPB strains and specific host plants and ACC deaminase activities in the reduction of stress ethylene and the promotion of plant growth, based on the research published in the last 10 years. Moreover, due to the restrictions in PGPB use, this review highlights the potential generation of transgenic plants expressing the AcdS gene that encodes the ACC deaminase enzyme as a substitute for PGPB in the future to support and uplift agricultural sustainability and food security globally.
Collapse
Affiliation(s)
- Aung Htay Naing
- Department of Horticulture, Kyungpook National University, Daegu, Korea
| | - The-Thiri Maung
- Department of Food Science and Technology, Kongju National University, Yesan, Korea
| | - Chang Kil Kim
- Department of Horticulture, Kyungpook National University, Daegu, Korea
| |
Collapse
|
24
|
An ethylene biosynthesis enzyme controls quantitative variation in maize ear length and kernel yield. Nat Commun 2021; 12:5832. [PMID: 34611160 PMCID: PMC8492687 DOI: 10.1038/s41467-021-26123-z] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 09/14/2021] [Indexed: 02/05/2023] Open
Abstract
Maize ear size and kernel number differ among lines, however, little is known about the molecular basis of ear length and its impact on kernel number. Here, we characterize a quantitative trait locus, qEL7, to identify a maize gene controlling ear length, flower number and fertility. qEL7 encodes 1-aminocyclopropane-1- carboxylate oxidase2 (ACO2), a gene that functions in the final step of ethylene biosynthesis and is expressed in specific domains in developing inflorescences. Confirmation of qEL7 by gene editing of ZmACO2 leads to a reduction in ethylene production in developing ears, and promotes meristem and flower development, resulting in a ~13.4% increase in grain yield per ear in hybrids lines. Our findings suggest that ethylene serves as a key signal in inflorescence development, affecting spikelet number, floral fertility, ear length and kernel number, and also provide a tool to improve grain productivity by optimizing ethylene levels in maize or in other cereals. Considerable genetic variation exists in maize ear size and kernel number. Here the authors show that variation in a gene encoding an ethylene biosynthetic enzyme impacts ear length, flower fertility and kernel yield suggesting an important role for ethylene signaling during inflorescence development.
Collapse
|
25
|
Salvi P, Manna M, Kaur H, Thakur T, Gandass N, Bhatt D, Muthamilarasan M. Phytohormone signaling and crosstalk in regulating drought stress response in plants. PLANT CELL REPORTS 2021; 40:1305-1329. [PMID: 33751168 DOI: 10.1007/s00299-021-02683-8] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 03/15/2021] [Indexed: 05/23/2023]
Abstract
Phytohormones are ubiquitously involved in plant biological processes and regulate cellular signaling pertaining to unheralded environmental cues, such as salinity, drought, extreme temperature and nutrient deprivation. The association of phytohormones to nearly all the fundamental biological processes epitomizes the phytohormone syndicate as a candidate target for consideration during engineering stress endurance in agronomically important crops. The drought stress response is essentially driven by phytohormones and their intricate network of crosstalk, which leads to transcriptional reprogramming. This review is focused on the pivotal role of phytohormones in water deficit responses, including their manipulation for mitigating the effect of the stressor. We have also discussed the inherent complexity of existing crosstalk accrued among them during the progression of drought stress, which instigates the tolerance response. Therefore, in this review, we have highlighted the role and regulatory aspects of various phytohormones, namely abscisic acid, auxin, gibberellic acid, cytokinin, brassinosteroid, jasmonic acid, salicylic acid, ethylene and strigolactone, with emphasis on drought stress tolerance.
Collapse
Affiliation(s)
- Prafull Salvi
- DST-INSPIRE Faculty, Agriculture Biotechnology Department, National Agri-Food Biotechnology Institute, Sector 81, Sahibzada Ajit Singh Nagar, Mohali, 140308, Punjab, India.
| | - Mrinalini Manna
- National Institute of Plant Genome Research, New Delhi, India
| | - Harmeet Kaur
- ICAR-National Institute for Plant Biotechnology, New Delhi, India
| | - Tanika Thakur
- DST-INSPIRE Faculty, Agriculture Biotechnology Department, National Agri-Food Biotechnology Institute, Sector 81, Sahibzada Ajit Singh Nagar, Mohali, 140308, Punjab, India
| | - Nishu Gandass
- DST-INSPIRE Faculty, Agriculture Biotechnology Department, National Agri-Food Biotechnology Institute, Sector 81, Sahibzada Ajit Singh Nagar, Mohali, 140308, Punjab, India
| | - Deepesh Bhatt
- Department of Biotechnology, Shree Ramkrishna Institute of Computer Education and Applied Sciences, Veer Narmad South Gujarat University, Surat, Gujarat, India
| | - Mehanathan Muthamilarasan
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad, Hyderabad, Telangana, India
| |
Collapse
|
26
|
Maximiano MR, Távora FTPK, Prado GS, Dias SC, Mehta A, Franco OL. CRISPR Genome Editing Technology: A Powerful Tool Applied to Developing Agribusiness. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:6379-6395. [PMID: 34097395 DOI: 10.1021/acs.jafc.1c01062] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The natural increase of the world's population implies boosting agricultural demand. In the current non-optimistic global scenario, where adverse climate changes come associated with substantial population growth, the main challenge in agribusiness is food security. Recently, the CRISPR/Cas system has emerged as a friendly gene editing biotechnological tool, enabling a precise manipulation of genomes and enhancement of desirable traits in several organisms. This review highlights the CRISPR/Cas system as a paramount tool for the improvement of agribusiness products and brings up-to-date findings showing its potential applications in improving agricultural-related traits in major plant crops and farm animals, all representing economic-relevant commodities responsible for feeding the world. Several applied pieces of research have successfully demonstrated the CRISPR/Cas ability in boosting interesting traits in agribusiness products, including animal productivity and welfare, crop yield growth, and seed quality, reflecting positive impacts in both socioeconomics and human health aspects. Hence, the CRISPR/Cas system has revolutionized bioscience and biotechnology, and its concrete application in agribusiness goods is on the horizon.
Collapse
Affiliation(s)
- Mariana Rocha Maximiano
- S-Inova Biotech, Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, Mato Grosso do Sul 79117-900, Brazil
- Centro de Análises Proteômicas e Bioquímicas, Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, Distrito Federal 70790-160, Brazil
| | - Fabiano T P K Távora
- Embrapa Recursos Genéticos e Biotecnologia, Brasília, Distrito Federal 70770-917, Brazil
- Programa de Pós Graduação em Ciências Biológicas (Imunologia e DIP/Genética e Biotecnologia), Universidade Federal de Juiz de Fora, Juiz de Fora, Minas Gerais 36036-900, Brazil
| | - Guilherme Souza Prado
- Laboratório de Biotecnologia, Embrapa Arroz e Feijão, Goiânia, Goiás 75375-000, Brazil
| | - Simoni Campos Dias
- Centro de Análises Proteômicas e Bioquímicas, Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, Distrito Federal 70790-160, Brazil
| | - Angela Mehta
- Embrapa Recursos Genéticos e Biotecnologia, Brasília, Distrito Federal 70770-917, Brazil
| | - Octávio Luiz Franco
- S-Inova Biotech, Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, Mato Grosso do Sul 79117-900, Brazil
- Centro de Análises Proteômicas e Bioquímicas, Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, Distrito Federal 70790-160, Brazil
- Programa de Pós Graduação em Ciências Biológicas (Imunologia e DIP/Genética e Biotecnologia), Universidade Federal de Juiz de Fora, Juiz de Fora, Minas Gerais 36036-900, Brazil
| |
Collapse
|
27
|
Simmons CR, Lafitte HR, Reimann KS, Brugière N, Roesler K, Albertsen MC, Greene TW, Habben JE. Successes and insights of an industry biotech program to enhance maize agronomic traits. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2021; 307:110899. [PMID: 33902858 DOI: 10.1016/j.plantsci.2021.110899] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 03/22/2021] [Accepted: 03/26/2021] [Indexed: 05/18/2023]
Abstract
Corteva Agriscience™ ran a discovery research program to identify biotech leads for improving maize Agronomic Traits such as yield, drought tolerance, and nitrogen use efficiency. Arising from many discovery sources involving thousands of genes, this program generated over 3331 DNA cassette constructs involving a diverse set of circa 1671 genes, whose transformed maize events were field tested from 2000 to 2018 under managed environments designed to evaluate their potential for commercialization. We demonstrate that a subgroup of these transgenic events improved yield in field-grown elite maize breeding germplasm. A set of at least 22 validated gene leads are identified and described which represent diverse molecular and physiological functions. These leads illuminate sectors of biology that could guide crop improvement in maize and perhaps other crops. In this review and interpretation, we share some of our approaches and results, and key lessons learned in discovering and developing these maize Agronomic Traits leads.
Collapse
Affiliation(s)
- Carl R Simmons
- Corteva Agriscience, 7300 NW 62nd Avenue, Johnston, IA, 50131, USA.
| | - H Renee Lafitte
- Corteva Agriscience, 7300 NW 62nd Avenue, Johnston, IA, 50131, USA
| | - Kellie S Reimann
- Corteva Agriscience, 7300 NW 62nd Avenue, Johnston, IA, 50131, USA
| | - Norbert Brugière
- Corteva Agriscience, 7300 NW 62nd Avenue, Johnston, IA, 50131, USA
| | - Keith Roesler
- Corteva Agriscience, 7300 NW 62nd Avenue, Johnston, IA, 50131, USA
| | - Marc C Albertsen
- Corteva Agriscience, 7300 NW 62nd Avenue, Johnston, IA, 50131, USA
| | - Thomas W Greene
- Corteva Agriscience, 7300 NW 62nd Avenue, Johnston, IA, 50131, USA
| | - Jeffrey E Habben
- Corteva Agriscience, 7300 NW 62nd Avenue, Johnston, IA, 50131, USA
| |
Collapse
|
28
|
Mubarik MS, Khan SH, Sajjad M, Raza A, Hafeez MB, Yasmeen T, Rizwan M, Ali S, Arif MS. A manipulative interplay between positive and negative regulators of phytohormones: A way forward for improving drought tolerance in plants. PHYSIOLOGIA PLANTARUM 2021; 172:1269-1290. [PMID: 33421147 DOI: 10.1111/ppl.13325] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 11/20/2020] [Accepted: 12/23/2020] [Indexed: 05/28/2023]
Abstract
Among different abiotic stresses, drought stress is the leading cause of impaired plant growth and low productivity worldwide. It is therefore essential to understand the process of drought tolerance in plants and thus to enhance drought resistance. Accumulating evidence indicates that phytohormones are essential signaling molecules that regulate diverse processes of plant growth and development under drought stress. Plants can often respond to drought stress through a cascade of phytohormones signaling as a means of plant growth regulation. Understanding biosynthesis pathways and regulatory crosstalk involved in these vital compounds could pave the way for improving plant drought tolerance while maintaining overall plant health. In recent years, the identification of phytohormones related key regulatory genes and their manipulation through state-of-the-art genome engineering tools have helped to improve drought tolerance plants. To date, several genes linked to phytohormones signaling networks, biosynthesis, and metabolism have been described as a promising contender for engineering drought tolerance. Recent advances in functional genomics have shown that enhanced expression of positive regulators involved in hormone biosynthesis could better equip plants against drought stress. Similarly, knocking down negative regulators of phytohormone biosynthesis can also be very effective to negate the negative effects of drought on plants. This review explained how manipulating positive and negative regulators of phytohormone signaling could be improvised to develop future crop varieties exhibiting higher drought tolerance. In addition, we also discuss the role of a promising genome editing tool, CRISPR/Cas9, on phytohormone mediated plant growth regulation for tackling drought stress.
Collapse
Affiliation(s)
- Muhammad Salman Mubarik
- Centre of Agricultural Biochemistry and Biotechnology (CABB), University of Agriculture, Faisalabad, Pakistan
- Center for Advanced Studies in Agriculture and Food Security (CAS-AFS), University of Agriculture, Faisalabad, Pakistan
| | - Sultan Habibullah Khan
- Centre of Agricultural Biochemistry and Biotechnology (CABB), University of Agriculture, Faisalabad, Pakistan
- Center for Advanced Studies in Agriculture and Food Security (CAS-AFS), University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Sajjad
- Department of Biosciences, COMSATS University Islamabad (CUI), Islamabad, Pakistan
| | - Ali Raza
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Wuhan, China
| | | | - Tahira Yasmeen
- Department of Environmental Sciences and Engineering, Government College University Faisalabad, Faisalabad, Pakistan
| | - Muhammad Rizwan
- Department of Environmental Sciences and Engineering, Government College University Faisalabad, Faisalabad, Pakistan
| | - Shafaqat Ali
- Department of Environmental Sciences and Engineering, Government College University Faisalabad, Faisalabad, Pakistan
| | - Muhammad Saleem Arif
- Department of Environmental Sciences and Engineering, Government College University Faisalabad, Faisalabad, Pakistan
| |
Collapse
|
29
|
Jogawat A, Yadav B, Lakra N, Singh AK, Narayan OP. Crosstalk between phytohormones and secondary metabolites in the drought stress tolerance of crop plants: A review. PHYSIOLOGIA PLANTARUM 2021; 172:1106-1132. [PMID: 33421146 DOI: 10.1111/ppl.13328] [Citation(s) in RCA: 88] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 11/08/2020] [Accepted: 01/01/2021] [Indexed: 05/21/2023]
Abstract
Drought stress negatively affects crop performance and weakens global food security. It triggers the activation of downstream pathways, mainly through phytohormones homeostasis and their signaling networks, which further initiate the biosynthesis of secondary metabolites (SMs). Roots sense drought stress, the signal travels to the above-ground tissues to induce systemic phytohormones signaling. The systemic signals further trigger the biosynthesis of SMs and stomatal closure to prevent water loss. SMs primarily scavenge reactive oxygen species (ROS) to protect plants from lipid peroxidation and also perform additional defense-related functions. Moreover, drought-induced volatile SMs can alert the plant tissues to perform drought stress mitigating functions in plants. Other phytohormone-induced stress responses include cell wall and cuticle thickening, root and leaf morphology alteration, and anatomical changes of roots, stems, and leaves, which in turn minimize the oxidative stress, water loss, and other adverse effects of drought. Exogenous applications of phytohormones and genetic engineering of phytohormones signaling and biosynthesis pathways mitigate the drought stress effects. Direct modulation of the SMs biosynthetic pathway genes or indirect via phytohormones' regulation provides drought tolerance. Thus, phytohormones and SMs play key roles in plant development under the drought stress environment in crop plants.
Collapse
Affiliation(s)
| | - Bindu Yadav
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Nita Lakra
- Department of Biotechnology, Chaudhary Charan Singh Haryana Agricultural University, Hisar, India
| | - Amit Kumar Singh
- School of Plant Sciences and Food Security, Tel Aviv University, Tel Aviv, Israel
| | - Om Prakash Narayan
- Biomedical Engineering Department, Tufts University, Medford, Massachusetts, USA
| |
Collapse
|
30
|
Quamruzzaman M, Manik SMN, Shabala S, Zhou M. Improving Performance of Salt-Grown Crops by Exogenous Application of Plant Growth Regulators. Biomolecules 2021; 11:788. [PMID: 34073871 PMCID: PMC8225067 DOI: 10.3390/biom11060788] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 05/19/2021] [Accepted: 05/21/2021] [Indexed: 12/31/2022] Open
Abstract
Soil salinity is one of the major abiotic stresses restricting plant growth and development. Application of plant growth regulators (PGRs) is a possible practical means for minimizing salinity-induced yield losses, and can be used in addition to or as an alternative to crop breeding for enhancing salinity tolerance. The PGRs auxin, cytokinin, nitric oxide, brassinosteroid, gibberellin, salicylic acid, abscisic acid, jasmonate, and ethylene have been advocated for practical use to improve crop performance and yield under saline conditions. This review summarizes the current knowledge of the effectiveness of various PGRs in ameliorating the detrimental effects of salinity on plant growth and development, and elucidates the physiological and genetic mechanisms underlying this process by linking PGRs with their downstream targets and signal transduction pathways. It is shown that, while each of these PGRs possesses an ability to alter plant ionic and redox homeostasis, the complexity of interactions between various PGRs and their involvement in numerous signaling pathways makes it difficult to establish an unequivocal causal link between PGRs and their downstream effectors mediating plants' adaptation to salinity. The beneficial effects of PGRs are also strongly dependent on genotype, the timing of application, and the concentration used. The action spectrum of PGRs is also strongly dependent on salinity levels. Taken together, this results in a rather narrow "window" in which the beneficial effects of PGR are observed, hence limiting their practical application (especially under field conditions). It is concluded that, in the light of the above complexity, and also in the context of the cost-benefit analysis, crop breeding for salinity tolerance remains a more reliable avenue for minimizing the impact of salinity on plant growth and yield. Further progress in the field requires more studies on the underlying cell-based mechanisms of interaction between PGRs and membrane transporters mediating plant ion homeostasis.
Collapse
Affiliation(s)
- Md. Quamruzzaman
- Tasmanian Institute of Agriculture, University of Tasmania, Prospect 7250, Australia; (M.Q.); (S.M.N.M.); (S.S.)
| | - S. M. Nuruzzaman Manik
- Tasmanian Institute of Agriculture, University of Tasmania, Prospect 7250, Australia; (M.Q.); (S.M.N.M.); (S.S.)
| | - Sergey Shabala
- Tasmanian Institute of Agriculture, University of Tasmania, Prospect 7250, Australia; (M.Q.); (S.M.N.M.); (S.S.)
- International Research Centre for Environmental Membrane Biology, Foshan University, Foshan 528000, China
| | - Meixue Zhou
- Tasmanian Institute of Agriculture, University of Tasmania, Prospect 7250, Australia; (M.Q.); (S.M.N.M.); (S.S.)
- College of Agronomy, Shanxi Agricultural University, Taigu 030801, China
| |
Collapse
|
31
|
Tamang TM, Sprague SA, Kakeshpour T, Liu S, White FF, Park S. Ectopic Expression of a Heterologous Glutaredoxin Enhances Drought Tolerance and Grain Yield in Field Grown Maize. Int J Mol Sci 2021; 22:ijms22105331. [PMID: 34069397 PMCID: PMC8158702 DOI: 10.3390/ijms22105331] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 05/08/2021] [Accepted: 05/10/2021] [Indexed: 11/22/2022] Open
Abstract
Drought stress is a major constraint in global maize production, causing almost 30–90% of the yield loss depending upon growth stage and the degree and duration of the stress. Here, we report that ectopic expression of Arabidopsis glutaredoxin S17 (AtGRXS17) in field grown maize conferred tolerance to drought stress during the reproductive stage, which is the most drought sensitive stage for seed set and, consequently, grain yield. AtGRXS17-expressing maize lines displayed higher seed set in the field, resulting in 2-fold and 1.5-fold increase in yield in comparison to the non-transgenic plants when challenged with drought stress at the tasseling and silking/pollination stages, respectively. AtGRXS17-expressing lines showed higher relative water content, higher chlorophyll content, and less hydrogen peroxide accumulation than wild-type (WT) control plants under drought conditions. AtGRXS17-expressing lines also exhibited at least 2-fold more pollen germination than WT plants under drought stress. Compared to the transgenic maize, WT controls accumulated higher amount of proline, indicating that WT plants were more stressed over the same period. The results present a robust and simple strategy for meeting rising yield demands in maize under water limiting conditions.
Collapse
Affiliation(s)
- Tej Man Tamang
- Department of Horticulture and Natural resources, Kansas State University, Manhattan, KS 66506, USA; (T.M.T.); (S.A.S.); (T.K.)
| | - Stuart A. Sprague
- Department of Horticulture and Natural resources, Kansas State University, Manhattan, KS 66506, USA; (T.M.T.); (S.A.S.); (T.K.)
| | - Tayebeh Kakeshpour
- Department of Horticulture and Natural resources, Kansas State University, Manhattan, KS 66506, USA; (T.M.T.); (S.A.S.); (T.K.)
| | - Sanzhen Liu
- Department of Plant Pathology, Kansas State University, Manhattan, KS 66506, USA;
| | - Frank F. White
- Department of Plant Pathology, University of Florida, Gainesville, FL 32611, USA;
| | - Sunghun Park
- Department of Horticulture and Natural resources, Kansas State University, Manhattan, KS 66506, USA; (T.M.T.); (S.A.S.); (T.K.)
- Correspondence:
| |
Collapse
|
32
|
An C, Gao Y. Essential Roles of the Linker Sequence Between Tetratricopeptide Repeat Motifs of Ethylene Overproduction 1 in Ethylene Biosynthesis. FRONTIERS IN PLANT SCIENCE 2021; 12:657300. [PMID: 33936142 PMCID: PMC8081955 DOI: 10.3389/fpls.2021.657300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 03/26/2021] [Indexed: 06/12/2023]
Abstract
Ethylene Overproduction 1 (ETO1) is a negative regulator of ethylene biosynthesis. However, the regulation mechanism of ETO1 remains largely unclear. Here, a novel eto1 allele (eto1-16) was isolated with typical triple phenotypes due to an amino acid substitution of G480C in the uncharacterized linker sequence between the TPR1 and TPR2 motifs. Further genetic and biochemical experiments confirmed the eto1-16 mutation site. Sequence analysis revealed that G480 is conserved not only in two paralogs, EOL1 and EOL2, in Arabidopsis, but also in the homologous protein in other species. The glycine mutations (eto1-11, eto1-12, and eto1-16) do not influence the mRNA abundance of ETO1, which is reflected by the mRNA secondary structure similar to that of WT. According to the protein-protein interaction analysis, the abnormal root phenotype of eto1-16 might be caused by the disruption of the interaction with type 2 1-aminocyclopropane-1-carboxylic acid (ACC) synthases (ACSs) proteins. Overall, these data suggest that the linker sequence between tetratricopeptide repeat (TPR) motifs and the glycine in TPR motifs or the linker region are essential for ETO1 to bind with downstream mediators, which strengthens our knowledge of ETO1 regulation in balancing ACSs.
Collapse
Affiliation(s)
- Chuanjing An
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Yuefang Gao
- College of Horticulture, Northwest A&F University, Yangling, China
| |
Collapse
|
33
|
Metabolomics Intervention Towards Better Understanding of Plant Traits. Cells 2021; 10:cells10020346. [PMID: 33562333 PMCID: PMC7915772 DOI: 10.3390/cells10020346] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 01/29/2021] [Accepted: 02/01/2021] [Indexed: 02/06/2023] Open
Abstract
The majority of the most economically important plant and crop species are enriched with the availability of high-quality reference genome sequences forming the basis of gene discovery which control the important biochemical pathways. The transcriptomics and proteomics resources have also been made available for many of these plant species that intensify the understanding at expression levels. However, still we lack integrated studies spanning genomics–transcriptomics–proteomics, connected to metabolomics, the most complicated phase in phenotype expression. Nevertheless, for the past few decades, emphasis has been more on metabolome which plays a crucial role in defining the phenotype (trait) during crop improvement. The emergence of modern high throughput metabolome analyzing platforms have accelerated the discovery of a wide variety of biochemical types of metabolites and new pathways, also helped in improving the understanding of known existing pathways. Pinpointing the causal gene(s) and elucidation of metabolic pathways are very important for development of improved lines with high precision in crop breeding. Along with other-omics sciences, metabolomics studies have helped in characterization and annotation of a new gene(s) function. Hereby, we summarize several areas in the field of crop development where metabolomics studies have made its remarkable impact. We also assess the recent research on metabolomics, together with other omics, contributing toward genetic engineering to target traits and key pathway(s).
Collapse
|
34
|
Naing AH, Jeong HY, Jung SK, Kim CK. Overexpression of 1-Aminocyclopropane-1-Carboxylic Acid Deaminase ( acdS) Gene in Petunia hybrida Improves Tolerance to Abiotic Stresses. FRONTIERS IN PLANT SCIENCE 2021; 12:737490. [PMID: 34795684 PMCID: PMC8594826 DOI: 10.3389/fpls.2021.737490] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 10/12/2021] [Indexed: 05/07/2023]
Abstract
Abiotic stress induces the ethylene precursor 1-aminocyclopropane-1-carboxylic acid (ACC) in plants, which consequently enhances ethylene production and inhibits plant growth. The bacterial ACC deaminase enzyme encoded by the acdS gene reduces stress-induced ethylene production and improves plant growth in response to stress. In this study, overexpression of acdS in Petunia hybrida ('Mirage Rose') significantly reduced expression of the ethylene biosynthesis gene ACC oxidase 1 (ACO1) and ethylene production relative to those in wild type (WT) under various abiotic stresses (cold, drought, and salt). The higher reduction of stress-induced ethylene in the transgenic plants, which was due to the overexpression of acdS, led to a greater tolerance to the stresses compared to that in the WT plants. The greater stress tolerances were proven based on better plant growth and physiological performance, which were linked to stress tolerance. Moreover, expression analysis of the genes involved in stress tolerance also supported the increased tolerance of transgenics relative to that with the WT. These results suggest the possibility that acdS is overexpressed in ornamental plants, particularly in bedding plants normally growing outside the environment, to overcome the deleterious effect of ethylene on plant growth under different abiotic stresses. The development of stress-tolerant plants will be helpful to advance the floricultural industry.
Collapse
Affiliation(s)
- Aung Htay Naing
- Department of Horticultural Science, Kyungpook National University, Daegu, South Korea
| | - Hui Yeong Jeong
- Department of Horticultural Science, Kyungpook National University, Daegu, South Korea
- Forest Medicinal Resources Research Center, NIFoS, Yeongju, South Korea
| | - Sung Keun Jung
- School of Food Science and Biotechnology, Kyungpook National University, Daegu, South Korea
| | - Chang Kil Kim
- Department of Horticultural Science, Kyungpook National University, Daegu, South Korea
- *Correspondence: Chang Kil Kim,
| |
Collapse
|
35
|
Zhao H, Yin CC, Ma B, Chen SY, Zhang JS. Ethylene signaling in rice and Arabidopsis: New regulators and mechanisms. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2021; 63:102-125. [PMID: 33095478 DOI: 10.1111/jipb.13028] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 10/21/2020] [Indexed: 05/22/2023]
Abstract
Ethylene is a gaseous hormone which plays important roles in both plant growth and development and stress responses. Based on studies in the dicot model plant species Arabidopsis, a linear ethylene signaling pathway has been established, according to which ethylene is perceived by ethylene receptors and transduced through CONSTITUTIVE TRIPLE RESPONSE 1 (CTR1) and ETHYLENE-INSENSITIVE 2 (EIN2) to activate transcriptional reprogramming. In addition to this canonical signaling pathway, an alternative ethylene receptor-mediated phosphor-relay pathway has also been proposed to participate in ethylene signaling. In contrast to Arabidopsis, rice, a monocot, grows in semiaquatic environments and has a distinct plant structure. Several novel regulators and/or mechanisms of the rice ethylene signaling pathway have recently been identified, indicating that the ethylene signaling pathway in rice has its own unique features. In this review, we summarize the latest progress and compare the conserved and divergent aspects of the ethylene signaling pathway between Arabidopsis and rice. The crosstalk between ethylene and other plant hormones is also reviewed. Finally, we discuss how ethylene regulates plant growth, stress responses and agronomic traits. These analyses should help expand our knowledge of the ethylene signaling mechanism and could further be applied for agricultural purposes.
Collapse
Affiliation(s)
- He Zhao
- State Key Lab of Plant Genomics, Institute of Genetics & Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
| | - Cui-Cui Yin
- State Key Lab of Plant Genomics, Institute of Genetics & Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
| | - Biao Ma
- Biology and Agriculture Research Center, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100024, China
| | - Shou-Yi Chen
- State Key Lab of Plant Genomics, Institute of Genetics & Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
| | - Jin-Song Zhang
- State Key Lab of Plant Genomics, Institute of Genetics & Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| |
Collapse
|
36
|
Simmons CR, Weers BP, Reimann KS, Abbitt SE, Frank MJ, Wang W, Wu J, Shen B, Habben JE. Maize BIG GRAIN1 homolog overexpression increases maize grain yield. PLANT BIOTECHNOLOGY JOURNAL 2020; 18:2304-2315. [PMID: 32356392 PMCID: PMC7589417 DOI: 10.1111/pbi.13392] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 03/15/2020] [Accepted: 04/20/2020] [Indexed: 05/14/2023]
Abstract
The Zea Mays BIG GRAIN 1 HOMOLOG 1 (ZM-BG1H1) was ectopically expressed in maize. Elite commercial hybrid germplasm was yield tested in diverse field environment locations representing commercial models. Yield was measured in 101 tests across all 4 events, 26 locations over 2 years, for an average yield gain of 355 kg/ha (5.65 bu/ac) above control, with 83% tests broadly showing yield gains (range +2272 kg/ha to -1240 kg/ha), with seven tests gaining more than one metric ton per hectare. Plant and ear height were slightly elevated, and ear and tassel flowering time were delayed one day, but ASI was unchanged, and these traits did not correlate to yield gain. ZM-BG1H1 overexpression is associated with increased ear kernel row number and total ear kernel number and mass, but individual kernels trended slightly smaller and less dense. The ZM-BG1H1 protein is detected in the plasma membrane like rice OS-BG1. Five predominant native ZM-BG1H1 alleles exhibit little structural and expression variation compared to the large increased expression conferred by these ectopic alleles.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | - Bo Shen
- Corteva AgriscienceJohnstonIAUSA
| | | |
Collapse
|
37
|
Jose J, Roy Choudhury S. Heterotrimeric G-proteins mediated hormonal responses in plants. Cell Signal 2020; 76:109799. [PMID: 33011291 DOI: 10.1016/j.cellsig.2020.109799] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 09/27/2020] [Accepted: 09/28/2020] [Indexed: 01/27/2023]
Abstract
Phytohormones not only orchestrate intrinsic developmental programs from germination to senescence but also regulate environmental inputs through complex signalling pathways. Despite building an own signalling network, hormones mutually contribute several signalling systems, which are also essential for plant growth and development, defense, and responses to abiotic stresses. One of such important signalling cascades is G-proteins, which act as critical regulators of a wide range of fundamental cellular processes by transducing receptor signals to the intracellular environment. G proteins are composed of α, β, and γ subunits, and the molecular switching between active and inactive conformation of Gα controls the signalling cycle. The active GTP bound Gα and freed Gβγ have both independent and tightly coordinated roles in the regulation of effector molecules, thereby modulating multiple responses, including hormonal responses. Therefore, an interplay of hormones with G-proteins fine-tunes multiple biological processes of plants; however, their molecular mechanisms are largely unknown. Functional characterization of hormone biosynthesis, perception, and signalling components, as well as identification of few effector molecules of G-proteins and their interaction networks, reduces the complexity of the hormonal signalling networks related to G-proteins. In this review, we highlight a valuable insight into the mechanisms of how the G-protein signalling cascades connect with hormonal responses to regulate increased developmental flexibility as well as remarkable plasticity of plants.
Collapse
Affiliation(s)
- Jismon Jose
- Department of Biology, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati, Andhra Pradesh 517507, India
| | - Swarup Roy Choudhury
- Department of Biology, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati, Andhra Pradesh 517507, India.
| |
Collapse
|
38
|
Li H, Jia S, Tang Y, Jiang Y, Yang S, Zhang J, Yan B, Wang Y, Guo J, Zhao S, Yang Q, Shao R. A transcriptomic analysis reveals the adaptability of the growth and physiology of immature tassel to long-term soil water deficit in Zea mays L. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 155:756-768. [PMID: 32882617 DOI: 10.1016/j.plaphy.2020.08.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 08/12/2020] [Accepted: 08/13/2020] [Indexed: 06/11/2023]
Abstract
Drought is a key threat to maize growth and yield. Understanding the mechanism of immature tassel (IT) response to long term drought is of paramount importance. Here, the maize inbred line PH6WC was tested under well-watered (CK) and two water deficit treatments (WD1 and WD2). The final IT length in the WD1 and WD2 treatments decreased by nearly 6.2% and 21.2% compared to the CK, respectively, and the average accumulation rate IT dry matter was 1.5-fold and 1.8-fold slower, respectively. Furthermore, RNA sequencing analysis was conducted on the IT sampled at 30 days after the WD treatments. In total, the cellular component in gene ontology (GO) analysis suggested that the differentially expressed genes were significantly enriched in three common terms (apoplast, plant-type cell wall, and anchored component of membrane) among the CK vs WD1, CK vs WD2, and WD1 vs WD2 comparisons. Next, a co-expression network analysis identified 44 modules that contained global expression genes. Finally, by combining the GO analysis with modules, nine genes involved in carbohydrate metabolism and the antioxidant system were screened out, and the six corresponding physiological parameters were all significantly increased under the WD treatments. These results showed that, although the IT length and dry matter decreased, the IT enhanced the adaptation to drought by regulating their own genetic and physiological changes.
Collapse
Affiliation(s)
- Hongwei Li
- National Key Laboratory of Wheat and Maize Crop Science, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
| | - Shuangjie Jia
- National Key Laboratory of Wheat and Maize Crop Science, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
| | - Yulou Tang
- National Key Laboratory of Wheat and Maize Crop Science, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
| | - Yanping Jiang
- National Key Laboratory of Wheat and Maize Crop Science, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
| | - Shenjiao Yang
- Farmland Irrigation Research Institute, CAAS/National Agro-ecological System Observation and Research Station of Shangqiu, Xinxiang, 453002, China
| | - Junjie Zhang
- National Key Laboratory of Wheat and Maize Crop Science, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
| | - Bowen Yan
- National Key Laboratory of Wheat and Maize Crop Science, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
| | - Yongchao Wang
- National Key Laboratory of Wheat and Maize Crop Science, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
| | - Jiameng Guo
- National Key Laboratory of Wheat and Maize Crop Science, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
| | - Shijie Zhao
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai'an, 271018, China
| | - Qinghua Yang
- National Key Laboratory of Wheat and Maize Crop Science, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China.
| | - Ruixin Shao
- National Key Laboratory of Wheat and Maize Crop Science, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China.
| |
Collapse
|
39
|
Niu L, Liu L, Wang W. Digging for Stress-Responsive Cell Wall Proteins for Developing Stress-Resistant Maize. FRONTIERS IN PLANT SCIENCE 2020; 11:576385. [PMID: 33101346 PMCID: PMC7546335 DOI: 10.3389/fpls.2020.576385] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 09/07/2020] [Indexed: 06/09/2023]
Abstract
As a vital component of plant cell walls, proteins play important roles in stress response by modifying the structure of cell walls and involving in the wall integrity signaling pathway. Recently, we have critically reviewed the predictors, databases, and cross-referencing of the subcellular locations of possible cell wall proteins (CWPs) in plants (Briefings in Bioinformatics 2018;19:1130-1140). Here, we briefly introduce strategies for isolating CWPs during proteomic analysis. Taking maize (Zea mays) as an example, we retrieved 1873 probable maize CWPs recorded in the UniProt KnowledgeBase (UniProtKB). After curation, 863 maize CWPs were identified and classified into 59 kinds of protein families. By referring to gene ontology (GO) annotations and gene differential expression in the Expression Atlas, we have highlighted the potential of CWPs acting in the front line of defense against biotic and abiotic stresses. Moreover, the analysis results of cis-acting elements revealed the responsiveness of the genes encoding CWPs toward phytohormones and various stresses. We suggest that the stress-responsive CWPs could be promising candidates for applications in developing varieties of stress-resistant maize.
Collapse
|
40
|
Joshi RK, Bharat SS, Mishra R. Engineering drought tolerance in plants through CRISPR/Cas genome editing. 3 Biotech 2020; 10:400. [PMID: 32864285 PMCID: PMC7438458 DOI: 10.1007/s13205-020-02390-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 08/11/2020] [Indexed: 12/13/2022] Open
Abstract
Drought stress is primarily responsible for heavy yield losses and productivity in major crops and possesses the greatest threat to the global food security. While conventional and molecular breeding approaches along with genetic engineering techniques have been instrumental in developing drought-tolerant crop varieties, these methods are cumbersome, time consuming and the genetically modified varieties are not widely accepted due to regulatory concerns. Plant breeders are now increasingly centring towards the recently available genome-editing tools for improvement of agriculturally important traits. The advent of multiple sequence-specific nucleases has facilitated precise gene modification towards development of novel climate ready crop variants. Amongst the available genome-editing platforms, the clustered regularly interspaced short palindromic repeat-Cas (CRISPR/Cas) system has emerged as a revolutionary tool for its simplicity, adaptability, flexibility and wide applicability. In this review, we focus on understanding the molecular mechanism of drought response in plants and the application of CRISPR/Cas genome-editing system towards improved tolerance to drought stress.
Collapse
Affiliation(s)
- Raj Kumar Joshi
- Department of Biotechnology, Rama Devi Women’s University, Vidya Vihar, Bhubaneswar, Odisha India
| | - Suhas Sutar Bharat
- National Key Facility for Crop Gene Resources and Genetic Improvement (NFCRI), Institute of Crop Science, Chinese Academy of Agriculture Sciences (CAAS), Beijing, 100081 China
| | - Rukmini Mishra
- School of Applied Sciences, Centurion University of Technology and Management, Bhubaneswar, Odisha India
| |
Collapse
|
41
|
Zheng H, Yang Z, Wang W, Guo S, Li Z, Liu K, Sui N. Transcriptome analysis of maize inbred lines differing in drought tolerance provides novel insights into the molecular mechanisms of drought responses in roots. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 149:11-26. [PMID: 32035249 DOI: 10.1016/j.plaphy.2020.01.027] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Revised: 01/12/2020] [Accepted: 01/17/2020] [Indexed: 05/21/2023]
Abstract
Maize (Zea mays) is an important food and forage crop, as well as an industrial raw material, that plays important roles in agriculture and national economies. Drought stress has negative effects on seed germination and seedling growth, and it decreases crop production. In this study, we selected two maize inbred lines with different drought-tolerance levels: drought-tolerant 287M and drought-sensitive 753F. The physiological results showed that drought stress resulted in a large accumulation of reactive oxygen species (ROS) in maize root cells. However, in 287M, the activity levels of the ROS scavenging enzymes superoxide dismutase and ascorbate peroxidase also increased, resulting in a higher ROS scavenging ability than 753F. We used Illumina RNA sequencing to obtain the gene expression profiles of the two maize inbred lines at the seedling stage in response to drought stress. The transcriptome data were analyzed to reveal the mechanisms underlying the drought tolerance of 287M at the gene regulatory level. The differences in drought tolerance between 287M and 753F may be associated with different ROS scavenging capabilities, signal interaction networks, and some transcription factors. Our results will aid in understanding the molecular mechanisms involved in plant responses to drought stress.
Collapse
Affiliation(s)
- Hongxiang Zheng
- Shandong Provincial Key Laboratory of Plant Stress, College of Life Science, Shandong Normal University, Jinan, 250014, China
| | - Zhen Yang
- Shandong Provincial Key Laboratory of Microbial Engineering, School of Biologic Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250300, China
| | - Wenqing Wang
- Shandong Provincial Key Laboratory of Plant Stress, College of Life Science, Shandong Normal University, Jinan, 250014, China
| | - Shangjing Guo
- College of Agronomy, Liaocheng University, Liaocheng, 252000, China
| | - Zongxin Li
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, 250100, China
| | - Kaichang Liu
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, 250100, China.
| | - Na Sui
- Shandong Provincial Key Laboratory of Plant Stress, College of Life Science, Shandong Normal University, Jinan, 250014, China.
| |
Collapse
|
42
|
Komori T, Sun Y, Kashihara M, Uekawa N, Kato N, Usami S, Ishikawa N, Hiei Y, Kobayashi K, Kum R, Bortiri E, White K, Oeller P, Takemori N, Bate NJ, Komari T. High-throughput phenotypic screening of random genomic fragments in transgenic rice identified novel drought tolerance genes. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2020; 133:1291-1301. [PMID: 31980835 DOI: 10.1007/s00122-020-03548-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 01/14/2020] [Indexed: 06/10/2023]
Abstract
Novel drought tolerance genes were identified by screening thousands of random genomic fragments from grass species in transgenic rice. Identification of agronomically important genes is a critical step for crop breeding through biotechnology. Multiple approaches have been employed to identify new gene targets, including comprehensive screening platforms for gene discovery such as the over-expression of libraries of cDNA clones. In this study, random genomic fragments from plants were introduced into rice and screened for drought tolerance in a high-throughput manner with the aim of finding novel genetic elements not exclusively limited to coding sequences. To illustrate the power of this approach, genomic libraries were constructed from four grass species, and screening a total of 50,825 transgenic rice lines for drought tolerance resulted in the identification of 12 reproducibly efficacious fragments. Of the twelve, two were from the mitochondrial genome of signal grass and ten were from the nuclear genome of buffalo grass. Subsequent sequencing and analyses revealed that the ten fragments from buffalo grass carried a similar genetic element with no significant homology to any previously characterized gene. The deduced protein sequence was rich in acidic amino acid residues in the C-terminal half, and two of the glutamic acid residues in the C-terminal half were shown to play an important role in drought tolerance. The results demonstrate that an open-ended screening approach using random genomic fragments could discover trait genes distinct from gene discovery based on known pathways or biased toward coding sequence over-expression.
Collapse
Affiliation(s)
- Toshiyuki Komori
- Plant Innovation Center, Japan Tobacco Inc., 700 Higashibara, Iwata, Shizuoka, 438-0802, Japan.
| | - Yuejin Sun
- Syngenta Crop Protection LLC, 9 Davis Drive, Research Triangle Park, NC, 27709, USA
| | - Masakazu Kashihara
- Plant Innovation Center, Japan Tobacco Inc., 700 Higashibara, Iwata, Shizuoka, 438-0802, Japan
| | - Natsuko Uekawa
- Plant Innovation Center, Japan Tobacco Inc., 700 Higashibara, Iwata, Shizuoka, 438-0802, Japan
| | - Norio Kato
- Plant Innovation Center, Japan Tobacco Inc., 700 Higashibara, Iwata, Shizuoka, 438-0802, Japan
| | - Satoru Usami
- Plant Innovation Center, Japan Tobacco Inc., 700 Higashibara, Iwata, Shizuoka, 438-0802, Japan
| | - Noriko Ishikawa
- Plant Innovation Center, Japan Tobacco Inc., 700 Higashibara, Iwata, Shizuoka, 438-0802, Japan
| | - Yukoh Hiei
- Plant Innovation Center, Japan Tobacco Inc., 700 Higashibara, Iwata, Shizuoka, 438-0802, Japan
| | - Kei Kobayashi
- Plant Innovation Center, Japan Tobacco Inc., 700 Higashibara, Iwata, Shizuoka, 438-0802, Japan
| | - Rise Kum
- Plant Innovation Center, Japan Tobacco Inc., 700 Higashibara, Iwata, Shizuoka, 438-0802, Japan
| | - Esteban Bortiri
- Syngenta Crop Protection LLC, 9 Davis Drive, Research Triangle Park, NC, 27709, USA
| | - Kimberly White
- Syngenta Crop Protection LLC, 9 Davis Drive, Research Triangle Park, NC, 27709, USA
| | - Paul Oeller
- Syngenta Crop Protection LLC, 9 Davis Drive, Research Triangle Park, NC, 27709, USA
| | - Naoki Takemori
- Plant Innovation Center, Japan Tobacco Inc., 700 Higashibara, Iwata, Shizuoka, 438-0802, Japan
| | - Nicholas J Bate
- Syngenta Crop Protection LLC, 9 Davis Drive, Research Triangle Park, NC, 27709, USA
- Pairwise Plants, 110 TW Alexander Drive, Research Triangle Park, NC, 27709, USA
| | - Toshihiko Komari
- Plant Innovation Center, Japan Tobacco Inc., 700 Higashibara, Iwata, Shizuoka, 438-0802, Japan
| |
Collapse
|
43
|
Progress of ethylene action mechanism and its application on plant type formation in crops. Saudi J Biol Sci 2020; 27:1667-1673. [PMID: 32489309 PMCID: PMC7253889 DOI: 10.1016/j.sjbs.2019.12.038] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 12/25/2019] [Accepted: 12/25/2019] [Indexed: 11/21/2022] Open
Abstract
The plant hormone ethylene exerts a huge influence in the whole life cycle of plants, especially stress-resistance responses. With the development of functional genomics, that the action mechanism of ethylene takes part in mediated plant architecture has been clarified gradually, such as plant roots, stems, leaves, fiber elongation and so on. Accordingly, the application of ethylene on crops chemical control and genetic improvement is greatly expanded. From the view of ethylene mediated plant architecture in crops, here reviewed advances in ethylene biosynthesis and signal transduction pathway, stress-resistance responses and the yield potential enhance of crops in recently 20 years. On these grounds, the objectives of this paper were to provide scientific reference and a useful clue for the crop creation of ideal plant type.
Collapse
|
44
|
Paponov IA, Paponov M, Sambo P, Engels C. Differential Regulation of Kernel Set and Potential Kernel Weight by Nitrogen Supply and Carbohydrate Availability in Maize Genotypes Contrasting in Nitrogen Use Efficiency. FRONTIERS IN PLANT SCIENCE 2020; 11:586. [PMID: 32499807 PMCID: PMC7243938 DOI: 10.3389/fpls.2020.00586] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 04/17/2020] [Indexed: 05/15/2023]
Abstract
Sub-optimal nitrogen (N) conditions reduce maize yield due to a decrease in two sink components: kernel set and potential kernel weight. Both components are established during the lag phase, suggesting that they could compete for resources during this critical period. However, whether this competition occurs or whether different genotypic strategies exist to optimize photoassimilate use during the lag phase is not clear and requires further investigation. We have addressed this knowledge gap by conducting a nutrient solution culture experiment that allows abrupt changes in N level and light intensity during the lag phase. We investigated plant growth, dry matter partitioning, non-structural carbohydrate concentration, N concentration, and 15N distribution (applied 4 days before silking) in plant organs at the beginning and the end of the lag phase in two maize hybrids that differ in grain yield under N-limited conditions: one is a nitrogen-use-efficient (EFFI) genotype and the other is a control (GREEN) genotype that does not display high N use efficiency. We found that the two genotypes used different mechanisms to regulate kernel set. The GREEN genotype showed a reduction in kernel set associated with reduced dry matter allocation to the ear during the lag phase, indicating that the reduced kernel set under N-limited conditions was related to sink restrictions. This idea was supported by a negative correlation between kernel set and sucrose/total sugar ratios in the kernels, indicating that the capacity for sucrose cleavage might be a key factor defining kernel set in the GREEN genotype. By contrast, the kernel set of the EFFI genotype was not correlated with dry matter allocation to the ear or to a higher capacity for sucrose cleavage; rather, it showed a relationship with the different EFFI ear morphology with bigger kernels at the apex of the ear than in the GREEN genotype. The potential kernel weight was independent of carbohydrate availability but was related to the N flux per kernel in both genotypes. In conclusion, kernel set and potential kernel weight are regulated independently, suggesting the possibility of simultaneously increasing both sink components in maize.
Collapse
Affiliation(s)
- Ivan A. Paponov
- Division of Food Production and Society, Norwegian Institute of Bioeconomy Research, Ås, Norway
- *Correspondence: Ivan A. Paponov,
| | - Martina Paponov
- Division of Food Production and Society, Norwegian Institute of Bioeconomy Research, Ås, Norway
| | - Paolo Sambo
- Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Legnaro, Italy
| | - Christof Engels
- Albrecht Daniel Thaer-Institute of Agricultural and Horticultural Sciences, Plant Nutrition and Fertilisation, Humboldt-Universitat zu Berlin, Berlin, Germany
| |
Collapse
|
45
|
Tiwari P, Bajpai M, Singh LK, Mishra S, Yadav AN. Phytohormones Producing Fungal Communities: Metabolic Engineering for Abiotic Stress Tolerance in Crops. Fungal Biol 2020. [DOI: 10.1007/978-3-030-45971-0_8] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
46
|
Zhang Y, Wang Y, Ye D, Xing J, Duan L, Li Z, Zhang M. Ethephon-regulated maize internode elongation associated with modulating auxin and gibberellin signal to alter cell wall biosynthesis and modification. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2020; 290:110196. [PMID: 31779899 DOI: 10.1016/j.plantsci.2019.110196] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 07/18/2019] [Accepted: 07/20/2019] [Indexed: 05/12/2023]
Abstract
Ethephon efficiently regulates plant growth to modulate the maize (Zea mays L.) stalk strength and yield potential, yet there is little information on how ethylene governs a specific cellular response for altering internode elongation. Here, the internode elongation kinetics, cell morphological and physiological properties and transcript expression patterns were investigated in the ethephon-treated elongating internode. Ethephon decreased the internode elongation rate, shortened the effective elongation duration, and advanced the growth process. Ethephon regulated the expression patterns of expansin and secondary cell wall-associated cellulose synthase genes to alter cell size. Moreover, ethephon increased the activities and transcripts level of phenylalanine ammonia-lyase and peroxidase, which contributed to lignin accumulation. Otherwise, ethephon-boosted ethylene evolution activated ethylene signal and increased ZmGA2ox3 and ZmGA2ox10 transcript levels while down-regulating ZmPIN1a, ZmPIN4 and ZmGA3ox1 transcript levels, which led to lower accumulation of gibberellins and auxin. In addition, transcriptome profiles confirmed previous results and identified several transcription factors that are involved in the ethephon-modulated transcriptional regulation of cell wall biosynthesis and modification and responses to ethylene, gibberellins and auxin. These results indicated that ethylene-modulated auxin and gibberellins signaling mediated the transcriptional operation of cell wall modification to regulate cell elongation in the ethephon-treated maize internode.
Collapse
Affiliation(s)
- Yushi Zhang
- Engineering Research Center of Plant Growth Regulator, Ministry of Education, Key Laboratory of Farming System, Ministry of Agriculture of China, College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100193, China
| | - Yubin Wang
- Engineering Research Center of Plant Growth Regulator, Ministry of Education, Key Laboratory of Farming System, Ministry of Agriculture of China, College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100193, China
| | - Delian Ye
- College of Crop Science, Fujian Agriculture and Forestry University, Fujian, 350002, China
| | - Jiapeng Xing
- Engineering Research Center of Plant Growth Regulator, Ministry of Education, Key Laboratory of Farming System, Ministry of Agriculture of China, College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100193, China
| | - Liusheng Duan
- Engineering Research Center of Plant Growth Regulator, Ministry of Education, Key Laboratory of Farming System, Ministry of Agriculture of China, College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100193, China
| | - Zhaohu Li
- Engineering Research Center of Plant Growth Regulator, Ministry of Education, Key Laboratory of Farming System, Ministry of Agriculture of China, College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100193, China
| | - Mingcai Zhang
- Engineering Research Center of Plant Growth Regulator, Ministry of Education, Key Laboratory of Farming System, Ministry of Agriculture of China, College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100193, China.
| |
Collapse
|
47
|
Kerchev P, van der Meer T, Sujeeth N, Verlee A, Stevens CV, Van Breusegem F, Gechev T. Molecular priming as an approach to induce tolerance against abiotic and oxidative stresses in crop plants. Biotechnol Adv 2019; 40:107503. [PMID: 31901371 DOI: 10.1016/j.biotechadv.2019.107503] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Revised: 11/20/2019] [Accepted: 12/30/2019] [Indexed: 12/31/2022]
Abstract
Abiotic stresses, including drought, salinity, extreme temperature, and pollutants, are the main cause of crop losses worldwide. Novel climate-adapted crops and stress tolerance-enhancing compounds are increasingly needed to counteract the negative effects of unfavorable stressful environments. A number of natural products and synthetic chemicals can protect model and crop plants against abiotic stresses through induction of molecular and physiological defense mechanisms, a process known as molecular priming. In addition to their stress-protective effect, some of these compounds can also stimulate plant growth. Here, we provide an overview of the known physiological and molecular mechanisms that induce molecular priming, together with a survey of the approaches aimed to discover and functionally study new stress-alleviating chemicals.
Collapse
Affiliation(s)
- Pavel Kerchev
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 613 00 Brno, Czech Republic; Phytophthora Research Centre, Faculty of AgriSciences, Mendel University in Brno, 613 00 Brno, Czech Republic
| | - Tom van der Meer
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium; Centre for Plant Systems Biology,VIB, 9052 Ghent, Belgium
| | | | - Arno Verlee
- Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium
| | - Christian V Stevens
- Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium
| | - Frank Van Breusegem
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium; Centre for Plant Systems Biology,VIB, 9052 Ghent, Belgium
| | - Tsanko Gechev
- Department of Molecular Stress Physiology, Center of Plant Systems Biology and Biotechnology, Plovdiv 4000, Bulgaria; Department of Plant Physiology and Molecular Biology, University of Plovdiv, Plovdiv 4000, Bulgaria.
| |
Collapse
|
48
|
Wu J, Lawit SJ, Weers B, Sun J, Mongar N, Van Hemert J, Melo R, Meng X, Rupe M, Clapp J, Haug Collet K, Trecker L, Roesler K, Peddicord L, Thomas J, Hunt J, Zhou W, Hou Z, Wimmer M, Jantes J, Mo H, Liu L, Wang Y, Walker C, Danilevskaya O, Lafitte RH, Schussler JR, Shen B, Habben JE. Overexpression of zmm28 increases maize grain yield in the field. Proc Natl Acad Sci U S A 2019; 116:23850-23858. [PMID: 31685622 PMCID: PMC6876154 DOI: 10.1073/pnas.1902593116] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Increasing maize grain yield has been a major focus of both plant breeding and genetic engineering to meet the global demand for food, feed, and industrial uses. We report that increasing and extending expression of a maize MADS-box transcription factor gene, zmm28, under the control of a moderate-constitutive maize promoter, results in maize plants with increased plant growth, photosynthesis capacity, and nitrogen utilization. Molecular and biochemical characterization of zmm28 transgenic plants demonstrated that their enhanced agronomic traits are associated with elevated plant carbon assimilation, nitrogen utilization, and plant growth. Overall, these positive attributes are associated with a significant increase in grain yield relative to wild-type controls that is consistent across years, environments, and elite germplasm backgrounds.
Collapse
Affiliation(s)
- Jingrui Wu
- Research & Development, Corteva Agriscience, Johnston, IA 50131
| | - Shai J Lawit
- Research & Development, Corteva Agriscience, Johnston, IA 50131
| | - Ben Weers
- Research & Development, Corteva Agriscience, Johnston, IA 50131
| | - Jindong Sun
- Research & Development, Corteva Agriscience, Johnston, IA 50131
| | - Nick Mongar
- Research & Development, Corteva Agriscience, Johnston, IA 50131
| | - John Van Hemert
- Research & Development, Corteva Agriscience, Johnston, IA 50131
| | - Rosana Melo
- Research & Development, Corteva Agriscience, Johnston, IA 50131
| | - Xin Meng
- Research & Development, Corteva Agriscience, Johnston, IA 50131
| | - Mary Rupe
- Research & Development, Corteva Agriscience, Johnston, IA 50131
| | - Joshua Clapp
- Research & Development, Corteva Agriscience, Johnston, IA 50131
| | | | - Libby Trecker
- Research & Development, Corteva Agriscience, Johnston, IA 50131
| | - Keith Roesler
- Research & Development, Corteva Agriscience, Johnston, IA 50131
| | | | - Jill Thomas
- Research & Development, Corteva Agriscience, Johnston, IA 50131
| | - Joanne Hunt
- Research & Development, Corteva Agriscience, Johnston, IA 50131
| | - Wengang Zhou
- Research & Development, Corteva Agriscience, Johnston, IA 50131
| | - Zhenglin Hou
- Research & Development, Corteva Agriscience, Johnston, IA 50131
| | - Matthew Wimmer
- Research & Development, Corteva Agriscience, Johnston, IA 50131
| | - Justin Jantes
- Research & Development, Corteva Agriscience, Johnston, IA 50131
| | - Hua Mo
- Research & Development, Corteva Agriscience, Johnston, IA 50131
| | - Lu Liu
- Research & Development, Corteva Agriscience, Johnston, IA 50131
| | - Yiwei Wang
- Research & Development, Corteva Agriscience, Johnston, IA 50131
| | - Carl Walker
- Research & Development, Corteva Agriscience, Johnston, IA 50131
| | | | - Renee H Lafitte
- Research & Development, Corteva Agriscience, Johnston, IA 50131
| | | | - Bo Shen
- Research & Development, Corteva Agriscience, Johnston, IA 50131
| | | |
Collapse
|
49
|
Sadras VO. Effective Phenotyping Applications Require Matching Trait and Platform and More Attention to Theory. FRONTIERS IN PLANT SCIENCE 2019; 10:1339. [PMID: 31695718 PMCID: PMC6817593 DOI: 10.3389/fpls.2019.01339] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 09/25/2019] [Indexed: 05/06/2023]
Affiliation(s)
- Victor O. Sadras
- South Australia Research and Development Institute, Adelaide, South Australia, Australia
- School of Agriculture, Food and Wine, The University of Adelaide, Australia
| |
Collapse
|
50
|
Raineri J, Campi M, Chan RL, Otegui ME. Maize expressing the sunflower transcription factor HaHB11 has improved productivity in controlled and field conditions. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2019; 287:110185. [PMID: 31481205 DOI: 10.1016/j.plantsci.2019.110185] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Revised: 07/05/2019] [Accepted: 07/06/2019] [Indexed: 06/10/2023]
Abstract
HaHB11 is a sunflower transcription factor from the homeodomain-leucine zipper I family. Transgenic Arabidopsis plants expressing HaHB11 had larger rosettes and improved seed yield. In this work maize plants from hybrid HiII were transformed with 35S:HaHB11, ZmUBI:HaHB11 and ProHaHB11:HaHB11 and then backcrossed to B73 to obtain a more homozygous inbred phenotype. Transgene expression levels were stable at least during three generations. Greenhouse-grown HaHB11 transgenic lines had larger leaf area and delayed senescence than controls, together with increased total biomass (up to 25%) and seed yield (up to 28%). Field trials conducted with T2 and T4 generations indicated that enhanced leaf area (up to 18%), stem diameter (up to 28%) and total biomass (up to 40%) as well as delayed leaf senescence were maintained among transgenic individuals when upscaling from pots in the greenhouse to communal plants in the field. The T4 field-grown transgenic generation had increased light interception and radiation use efficiency as well as seed yield (43-47% for events driven by the 35S promoter). Results suggest that HaHB11 is a promising tool for crop improvement because differential traits observed in the Arabidopsis model plant were preserved in a crop like maize independently of growth conditions and backcross level.
Collapse
Affiliation(s)
- Jesica Raineri
- Instituto de Agrobiotecnología del Litoral, Universidad Nacional del Litoral- CONICET, Facultad de Bioquímica y Ciencias Biológicas, Colectora Ruta Nacional 168 km 0, Santa Fe, Argentina.
| | - Mabel Campi
- Instituto de Agrobiotecnología del Litoral, Universidad Nacional del Litoral- CONICET, Facultad de Bioquímica y Ciencias Biológicas, Colectora Ruta Nacional 168 km 0, Santa Fe, Argentina.
| | - Raquel L Chan
- Instituto de Agrobiotecnología del Litoral, Universidad Nacional del Litoral- CONICET, Facultad de Bioquímica y Ciencias Biológicas, Colectora Ruta Nacional 168 km 0, Santa Fe, Argentina.
| | - María E Otegui
- CONICET- INTA-FAUBA, Estación Experimental Pergamino, Facultad de Agronomía Universidad de Buenos Aires, Buenos Aires, Argentina.
| |
Collapse
|