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Lilay GH, Thiébaut N, du Mee D, Assunção AGL, Schjoerring JK, Husted S, Persson DP. Linking the key physiological functions of essential micronutrients to their deficiency symptoms in plants. THE NEW PHYTOLOGIST 2024; 242:881-902. [PMID: 38433319 DOI: 10.1111/nph.19645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 02/12/2024] [Indexed: 03/05/2024]
Abstract
In this review, we untangle the physiological key functions of the essential micronutrients and link them to the deficiency responses in plants. Knowledge of these responses at the mechanistic level, and the resulting deficiency symptoms, have improved over the last decade and it appears timely to review recent insights for each of them. A proper understanding of the links between function and symptom is indispensable for an accurate and timely identification of nutritional disorders, thereby informing the design and development of sustainable fertilization strategies. Similarly, improved knowledge of the molecular and physiological functions of micronutrients will be important for breeding programmes aiming to develop new crop genotypes with improved nutrient-use efficiency and resilience in the face of changing soil and climate conditions.
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Affiliation(s)
- Grmay Hailu Lilay
- Plant and Soil Science Section, Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Thorvaldsensvej 40, Frederiksberg C, 1871, Denmark
| | - Noémie Thiébaut
- Plant and Soil Science Section, Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Thorvaldsensvej 40, Frederiksberg C, 1871, Denmark
- Earth and Life Institute, Faculty of Bioscience Engineering, Université Catholique de Louvain, Louvain-la-Neuve, 1348, Belgium
| | - Dorine du Mee
- Plant and Soil Science Section, Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Thorvaldsensvej 40, Frederiksberg C, 1871, Denmark
| | - Ana G L Assunção
- CIBIO-InBIO, Research Centre in Biodiversity and Genetic Resources, University of Porto, Vairão, 4485-661, Portugal
| | - Jan Kofod Schjoerring
- Plant and Soil Science Section, Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Thorvaldsensvej 40, Frederiksberg C, 1871, Denmark
| | - Søren Husted
- Plant and Soil Science Section, Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Thorvaldsensvej 40, Frederiksberg C, 1871, Denmark
| | - Daniel Pergament Persson
- Plant and Soil Science Section, Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Thorvaldsensvej 40, Frederiksberg C, 1871, Denmark
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Sayyed A, Chen B, Wang Y, Cao SK, Tan BC. PPR596 Is Required for nad2 Intron Splicing and Complex I Biogenesis in Arabidopsis. Int J Mol Sci 2024; 25:3542. [PMID: 38542518 PMCID: PMC10971677 DOI: 10.3390/ijms25063542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 03/15/2024] [Accepted: 03/16/2024] [Indexed: 04/04/2024] Open
Abstract
Mitochondria are essential organelles that generate energy via oxidative phosphorylation. Plant mitochondrial genome encodes some of the respiratory complex subunits, and these transcripts require accurate processing, including C-to-U RNA editing and intron splicing. Pentatricopeptide repeats (PPR) proteins are involved in various organellar RNA processing events. PPR596, a P-type PPR protein, was previously identified to function in the C-to-U editing of mitochondrial rps3 transcripts in Arabidopsis. Here, we demonstrate that PPR596 functions in the cis-splicing of nad2 intron 3 in mitochondria. Loss of the PPR596 function affects the editing at rps3eU1344SS, impairs nad2 intron 3 splicing and reduces the mitochondrial complex I's assembly and activity, while inducing alternative oxidase (AOX) gene expression. This defect in nad2 intron splicing provides a plausible explanation for the slow growth of the ppr595 mutants. Although a few P-type PPR proteins are involved in RNA C-to-U editing, our results suggest that the primary function of PPR596 is intron splicing.
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Affiliation(s)
| | | | | | | | - Bao-Cai Tan
- Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Qingdao 266237, China; (A.S.); (B.C.); (Y.W.); (S.-K.C.)
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Li Y, Jiang F, Niu L, Wang G, Yin J, Song X, Ottosen CO, Rosenqvist E, Mittler R, Wu Z, Zhou R. Synergistic regulation at physiological, transcriptional and metabolic levels in tomato plants subjected to a combination of salt and heat stress. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 117:1656-1675. [PMID: 38055844 DOI: 10.1111/tpj.16580] [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: 06/10/2023] [Revised: 11/23/2023] [Accepted: 11/25/2023] [Indexed: 12/08/2023]
Abstract
With global warming and climate change, abiotic stresses often simultaneously occur. Combined salt and heat stress was a common phenomenon that was severe, particularly in arid/semi-arid lands. We aimed to reveal the systematic responsive mechanisms of tomato genotypes with different salt/heat susceptibilities to combined salt and heat stress. Morphological and physiological responses of salt-tolerant/sensitive and heat-tolerant/sensitive tomatoes at control, heat, salt and combined stress were investigated. Based on leaf Fv /Fm and H2 O2 content, samples from tolerant genotype at the four treatments for 36 h were taken for transcriptomics and metabolomics. We found that plant height, dry weight and net photosynthetic rate decreased while leaf Na+ concentration increased in all four genotypes under salt and combined stress than control. Changes in physiological indicators such as photosynthetic parameters and defence enzyme activities in tomato under combined stress were regulated by the expression of relevant genes and the accumulation of key metabolites. We screened five key pathways in tomato responding to a combination of salt and heat stress, such as oxidative phosphorylation (map00190). Synergistic regulation at morphological, physiological, transcriptional and metabolic levels in tomato plants was induced by combined stress. Heat stress was considered as a dominant stressor for tomato plants under the current combined stress. The oxidative phosphorylation pathway played a key role in tomato in response to combined stress, where tapped key genes (e.g. alternative oxidase, Aox1a) need further functional analysis. Our study will provide a valuable resource important for studying stress combination and improving tomato tolerance.
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Affiliation(s)
- Yankai Li
- Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Fangling Jiang
- Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Lifei Niu
- Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Ge Wang
- Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Jian Yin
- Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Xiaoming Song
- College of Life Sciences, North China University of Science and Technology, Tangshan, China
| | - Carl-Otto Ottosen
- Department of Food Science, Aarhus University, Agro Food Park 48, Aarhus, N 8200, Denmark
| | - Eva Rosenqvist
- Department of Plant and Environmental Sciences, University of Copenhagen, Taastrup, 2630, Denmark
| | - Ron Mittler
- Division of Plant Science and Technology, College of Agriculture, Food and Natural Resources, University of Missouri, Bond Life Sciences Center, 1201 Rollins St, Columbia, MO, 65201, USA
| | - Zhen Wu
- Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Rong Zhou
- Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
- Department of Food Science, Aarhus University, Agro Food Park 48, Aarhus, N 8200, Denmark
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Hanson AD, Millar AH, Nikoloski Z, Way DA. Focus on respiration. PLANT PHYSIOLOGY 2023; 191:2067-2069. [PMID: 36703191 PMCID: PMC10069875 DOI: 10.1093/plphys/kiad041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 01/24/2023] [Indexed: 06/18/2023]
Affiliation(s)
- Andrew D Hanson
- Author for correspondence: (A.D.H.), (A.H.M.), (Z.N.), (D.A.W.)
| | - A Harvey Millar
- Author for correspondence: (A.D.H.), (A.H.M.), (Z.N.), (D.A.W.)
| | - Zoran Nikoloski
- Author for correspondence: (A.D.H.), (A.H.M.), (Z.N.), (D.A.W.)
| | - Danielle A Way
- Author for correspondence: (A.D.H.), (A.H.M.), (Z.N.), (D.A.W.)
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