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Basso MF, Girardin G, Vergata C, Buti M, Martinelli F. Genome-wide transcript expression analysis reveals major chickpea and lentil genes associated with plant branching. FRONTIERS IN PLANT SCIENCE 2024; 15:1384237. [PMID: 38962245 PMCID: PMC11220206 DOI: 10.3389/fpls.2024.1384237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 05/31/2024] [Indexed: 07/05/2024]
Abstract
The search for elite cultivars with better architecture has been a demand by farmers of the chickpea and lentil crops, which aims to systematize their mechanized planting and harvesting on a large scale. Therefore, the identification of genes associated with the regulation of the branching and architecture of these plants has currently gained great importance. Herein, this work aimed to gain insight into transcriptomic changes of two contrasting chickpea and lentil cultivars in terms of branching pattern (little versus highly branched cultivars). In addition, we aimed to identify candidate genes involved in the regulation of shoot branching that could be used as future targets for molecular breeding. The axillary and apical buds of chickpea cultivars Blanco lechoso and FLIP07-318C, and lentil cultivars Castellana and Campisi, considered as little and highly branched, respectively, were harvested. A total of 1,624 and 2,512 transcripts were identified as differentially expressed among different tissues and contrasting cultivars of chickpea and lentil, respectively. Several gene categories were significantly modulated such as cell cycle, DNA transcription, energy metabolism, hormonal biosynthesis and signaling, proteolysis, and vegetative development between apical and axillary tissues and contrasting cultivars of chickpea and lentil. Based on differential expression and branching-associated biological function, ten chickpea genes and seven lentil genes were considered the main players involved in differentially regulating the plant branching between contrasting cultivars. These collective data putatively revealed the general mechanism and high-effect genes associated with the regulation of branching in chickpea and lentil, which are potential targets for manipulation through genome editing and transgenesis aiming to improve plant architecture.
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Affiliation(s)
| | | | - Chiara Vergata
- Department of Biology, University of Florence, Florence, Italy
| | - Matteo Buti
- Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, Florence, Italy
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2
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Gulzar F, Ahmad R, Kwan SY, Khan Z, Alharbi SA, Shah MM, Rehman SU, Siddique M, Ansari MJ, Shahzadi I, Saddique MAB, Ishaq MZ, Waheed U. Understanding the role of the fructose-1,6-bisphosphatase gene for enhancing the photosynthetic rate in Arabidopsis thaliana. FUNCTIONAL PLANT BIOLOGY : FPB 2024; 51:FP24034. [PMID: 38640358 DOI: 10.1071/fp24034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 03/24/2024] [Indexed: 04/21/2024]
Abstract
Transgenic Arabidopsis thaliana (ecotype Columbia) was successfully transformed with the gene fructose-1,6-bisphosphatase (FBPas e) and named as AtFBPase plants. Transgenic plants exhibited stable transformation, integration and significantly higher expressions for the transformed gene. Morphological evaluation of transgenic plants showed increased plant height (35cm), number of leaves (25), chlorophyll contents (28%), water use efficiency (increased from 1.5 to 2.6μmol CO2 μmol-1 H2 O) and stomatal conductance (20%), which all resulted in an enhanced photosynthetic rate (2.7μmolm-2 s-1 ) compared to wild type plants. This study suggests the vital role of FBPase gene in the modification of regulatory pathways to enhance the photosynthetic rate, which can also be utilised for economic crops in future.
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Affiliation(s)
- Fatima Gulzar
- Institute of Plant Breeding and Biotechnology, Muhammad Nawaz Shareef University of Agriculture, Multan, Pakistan
| | - Raza Ahmad
- Department of Biotechnology, COMSATS University Islamabad, Abbottabad Campus, Islamabad, Pakistan
| | - Suk-Yoon Kwan
- Plant System Engineering, Korea Research Institute of Bio Sciences and Biotechnology, Daejon 34141, Republic of Korea
| | - Zulqurnain Khan
- Institute of Plant Breeding and Biotechnology, Muhammad Nawaz Shareef University of Agriculture, Multan, Pakistan
| | - Sulaiman Ali Alharbi
- Department of Botany & Microbiology, College of Science, King Saud University, P.O Box 2455, Riyadh 11451, Saudi Arabia
| | - Mohmmad Maroof Shah
- Department of Biotechnology, COMSATS University Islamabad, Abbottabad Campus, Islamabad, Pakistan
| | - Shoaib Ur Rehman
- Institute of Plant Breeding and Biotechnology, Muhammad Nawaz Shareef University of Agriculture, Multan, Pakistan
| | - Maria Siddique
- Department of Environmental Sciences, COMSATS University Islamabad, Abbottabad Campus, Islamabad, Pakistan
| | - Mohammad Javed Ansari
- Department of Plant Protection, College of Food and Agriculture Sciences, King Saud University, Riyadh 1451, Saudi Arabia; and Department of Botany, Hindu College Moradabad, Mahatma Jyotiba Phule Rohilkhand University, Bareilly 244001, India
| | - Irum Shahzadi
- Department of Biotechnology, COMSATS University Islamabad, Abbottabad Campus, Islamabad, Pakistan
| | - Muhammad Abu Bakar Saddique
- Institute of Plant Breeding and Biotechnology, Muhammad Nawaz Shareef University of Agriculture, Multan, Pakistan
| | - Muhmmad Zahid Ishaq
- Department of Otorhinolaryngology, Nishtar Medical University and Hospital, Multan, Pakistan
| | - Ummara Waheed
- Institute of Plant Breeding and Biotechnology, Muhammad Nawaz Shareef University of Agriculture, Multan, Pakistan
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3
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Chen Z, Chen Y, Shi L, Wang L, Li W. Interaction of Phytohormones and External Environmental Factors in the Regulation of the Bud Dormancy in Woody Plants. Int J Mol Sci 2023; 24:17200. [PMID: 38139028 PMCID: PMC10743443 DOI: 10.3390/ijms242417200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 11/26/2023] [Accepted: 12/04/2023] [Indexed: 12/24/2023] Open
Abstract
Bud dormancy and release are essential phenomena that greatly assist in adapting to adverse growing conditions and promoting the holistic growth and development of perennial plants. The dormancy and release process of buds in temperate perennial trees involves complex interactions between physiological and biochemical processes influenced by various environmental factors, representing a meticulously orchestrated life cycle. In this review, we summarize the role of phytohormones and their crosstalk in the establishment and release of bud dormancy. External environmental factors, such as light and temperature, play a crucial role in regulating bud germination. We also highlight the mechanisms of how light and temperature are involved in the regulation of bud dormancy by modulating phytohormones. Moreover, the role of nutrient factors, including sugar, in regulating bud dormancy is also discussed. This review provides a foundation for enhancing our understanding of plant growth and development patterns, fostering agricultural production, and exploring plant adaptive responses to adversity.
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Affiliation(s)
| | | | | | | | - Weixing Li
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China; (Z.C.); (Y.C.); (L.S.); (L.W.)
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4
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Guo WJ, Pommerrenig B, Neuhaus HE, Keller I. Interaction between sugar transport and plant development. JOURNAL OF PLANT PHYSIOLOGY 2023; 288:154073. [PMID: 37603910 DOI: 10.1016/j.jplph.2023.154073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 08/14/2023] [Accepted: 08/16/2023] [Indexed: 08/23/2023]
Abstract
Endogenous programs and constant interaction with the environment regulate the development of the plant organism and its individual organs. Sugars are necessary building blocks for plant and organ growth and at the same time act as critical integrators of the metabolic state into the developmental program. There is a growing recognition that the specific type of sugar and its subcellular or tissue distribution is sensed and translated to developmental responses. Therefore, the transport of sugars across membranes is a key process in adapting plant organ properties and overall development to the nutritional state of the plant. In this review, we discuss how plants exploit various sugar transporters to signal growth responses, for example, to control the development of sink organs such as roots or fruits. We highlight which sugar transporters are involved in root and shoot growth and branching, how intracellular sugar allocation can regulate senescence, and, for example, control fruit development. We link the important transport processes to downstream signaling cascades and elucidate the factors responsible for the integration of sugar signaling and plant hormone responses.
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Affiliation(s)
- Woei-Jiun Guo
- Department of Biotechnology and Bioindustry Sciences, National Cheng Kung University, Tainan, Taiwan
| | - Benjamin Pommerrenig
- Department of Plant Physiology, University of Kaiserslautern, Erwin Schrödinger Str., 67663, Kaiserslautern, Germany
| | - H Ekkehard Neuhaus
- Department of Plant Physiology, University of Kaiserslautern, Erwin Schrödinger Str., 67663, Kaiserslautern, Germany
| | - Isabel Keller
- Department of Plant Physiology, University of Kaiserslautern, Erwin Schrödinger Str., 67663, Kaiserslautern, Germany.
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Singh J, Kaushik S, Maharana C, Jhingan GD, Dhar DW. Elevated inorganic carbon and salinity enhances photosynthesis and ATP synthesis in picoalga Picocystis salinarum as revealed by label free quantitative proteomics. Front Microbiol 2023; 14:1059199. [PMID: 36937286 PMCID: PMC10020504 DOI: 10.3389/fmicb.2023.1059199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Accepted: 01/27/2023] [Indexed: 03/06/2023] Open
Abstract
Saline soda lakes are of immense ecological value as they niche some of the most exclusive haloalkaliphilic communities dominated by bacterial and archaeal domains, with few eukaryotic algal representatives. A handful reports describe Picocystis as a key primary producer with great production rates in extremely saline alkaline habitats. An extremely haloalkaliphilic picoalgal strain, Picocystis salinarum SLJS6 isolated from hypersaline soda lake Sambhar, Rajasthan, India, grew robustly in an enriched soda lake medium containing mainly Na2CO3, 50 g/l; NaHCO3, 50 g/l, NaCl, 50 g/l (salinity ≈150‰) at pH 10. To elucidate the molecular basis of such adaptation to high inorganic carbon and NaCl concentrations, a high-throughput label-free quantitation based quantitative proteomics approach was applied. Out of the total 383 proteins identified in treated samples, 225 were differentially abundant proteins (DAPs), of which 150 were statistically significant (p < 0.05) including 70 upregulated and 64 downregulated proteins after 3 days of growth in highly saline-alkaline medium. Most DAPs were involved in photosynthesis, oxidative phosphorylation, glucose metabolism and ribosomal structural components envisaging that photosynthesis and ATP synthesis were central to the salinity-alkalinity response. Key components of photosynthetic machinery like photosystem reaction centres, adenosine triphosphate (ATP) synthase ATP, Rubisco, Fructose-1,6-bisphosphatase, Fructose-bisphosphate aldolase were highly upregulated. Enzymes peptidylprolyl isomerases (PPIase), important for correct protein folding showed remarkable marked-up regulation along with other chaperon proteins indicating their role in osmotic adaptation. Enhanced photosynthetic activity exhibited by P. salinarum in highly saline-alkaline condition is noteworthy as photosynthesis is suppressed under hyperosmotic conditions in most photosynthetic organisms. The study provided the first insights into the proteome of extremophilic alga P. salinarum exhibiting extraordinary osmotic adaptation and proliferation in polyextreme conditions prevailing in saline sodic ecosystems, potentially unraveling the basis of resilience in this not so known organism and paves the way for a promising future candidate for biotechnological applications and model organism for deciphering the molecular mechanisms of osmotic adaptation. The mass spectrometry proteomics data is available at the ProteomeXchange Consortium via the PRIDE partner repository with the dataset identifier PXD037170.
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Affiliation(s)
- Jyoti Singh
- Centre for Conservation and Utilization of Blue Green Algae, Division of Microbiology, Indian Agricultural Research Institute, New Delhi, India
- Department of Earth Sciences, Pondicherry University, Puducherry, India
- *Correspondence: Jyoti Singh,
| | - Shubham Kaushik
- Vproteomics, Valerian Chem Private Limited, New Delhi, India
| | - Chinmaya Maharana
- Department of Earth Sciences, Pondicherry University, Puducherry, India
- Water Technology Centre, Indian Agricultural Research Institute, New Delhi, India
| | | | - Dolly Wattal Dhar
- Centre for Conservation and Utilization of Blue Green Algae, Division of Microbiology, Indian Agricultural Research Institute, New Delhi, India
- School of Agricultural Sciences, Sharda University, Greater Noida, Uttar Pradesh, India
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Patil SB, Barbier FF, Zhao J, Zafar SA, Uzair M, Sun Y, Fang J, Perez-Garcia MD, Bertheloot J, Sakr S, Fichtner F, Chabikwa TG, Yuan S, Beveridge CA, Li X. Sucrose promotes D53 accumulation and tillering in rice. THE NEW PHYTOLOGIST 2022; 234:122-136. [PMID: 34716593 DOI: 10.1111/nph.17834] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 10/24/2021] [Indexed: 05/25/2023]
Abstract
Shoot branching is regulated by multiple signals. Previous studies have indicated that sucrose may promote shoot branching through suppressing the inhibitory effect of the hormone strigolactone (SL). However, the molecular mechanisms underlying this effect are unknown. Here, we used molecular and genetic tools to identify the molecular targets underlying the antagonistic interaction between sucrose and SL. We showed that sucrose antagonizes the suppressive action of SL on tillering in rice and on the degradation of D53, a major target of SL signalling. Sucrose inhibits the gene expression of D3, the orthologue of the Arabidopsis F-box MAX2 required for SL signalling. Overexpression of D3 antagonizes sucrose inhibition of D53 degradation and enables the SL inhibition of tillering under high sucrose. Sucrose prevents SL-induced degradation of D14, the SL receptor involved in D53 degradation. In contrast to D3, D14 overexpression enhances D53 protein levels and sucrose-induced tillering, even in the presence of SL. Our results show that sucrose inhibits SL response by affecting key components of SL signalling and, together with previous studies reporting the inhibition of SL synthesis by nitrate and phosphate, demonstrate the central role played by SLs in the regulation of plant architecture by nutrients.
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Affiliation(s)
- Suyash B Patil
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing,, 100081, China
| | - Francois F Barbier
- School of Biological Sciences, The University of Queensland, St Lucia, QLD, 4072, Australia
- ARC Centre for Plant Success in Nature and Agriculture, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Jinfeng Zhao
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing,, 100081, China
| | - Syed A Zafar
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing,, 100081, China
| | - Muhammad Uzair
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing,, 100081, China
| | - Yinglu Sun
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing,, 100081, China
| | - Jingjing Fang
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing,, 100081, China
| | | | - Jessica Bertheloot
- INRAE, IRHS, SFR 4207 QUASAV, Institut Agro, Université d'Angers, Angers, 49000, France
| | - Soulaiman Sakr
- INRAE, IRHS, SFR 4207 QUASAV, Institut Agro, Université d'Angers, Angers, 49000, France
| | - Franziska Fichtner
- School of Biological Sciences, The University of Queensland, St Lucia, QLD, 4072, Australia
- ARC Centre for Plant Success in Nature and Agriculture, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Tinashe G Chabikwa
- School of Biological Sciences, The University of Queensland, St Lucia, QLD, 4072, Australia
| | | | - Christine A Beveridge
- School of Biological Sciences, The University of Queensland, St Lucia, QLD, 4072, Australia
- ARC Centre for Plant Success in Nature and Agriculture, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Xueyong Li
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing,, 100081, China
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7
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Barbier FF, Cao D, Fichtner F, Weiste C, Perez-Garcia MD, Caradeuc M, Le Gourrierec J, Sakr S, Beveridge CA. HEXOKINASE1 signalling promotes shoot branching and interacts with cytokinin and strigolactone pathways. THE NEW PHYTOLOGIST 2021; 231:1088-1104. [PMID: 33909299 DOI: 10.1111/nph.17427] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 04/18/2021] [Indexed: 05/08/2023]
Abstract
Plant architecture is controlled by several endogenous signals including hormones and sugars. However, only little information is known about the nature and roles of the sugar signalling pathways in this process. Here we test whether the sugar signalling pathway mediated by HEXOKINASE1 (HXK1) is involved in the control of shoot branching. To test the involvement of HXK1 in shoot branching and in the hormonal network controlling this process, we modulated the HXK1 pathway using physiological and genetic approaches in rose, pea and arabidopsis. Mannose-induced HXK signalling triggered bud outgrowth in rose and pea. In arabidopsis, both HXK1 deficiency and defoliation led to decreased shoot branching and conferred hypersensitivity to auxin. Complementation of the HXK1 knockout mutant gin2 with a catalytically inactive HXK1, restored shoot branching to the wild-type level. HXK1-deficient plants displayed decreased cytokinin levels and increased expression of MAX2, which is required for strigolactone signalling. The branching phenotype of HXK1-deficient plants could be partly restored by cytokinin treatment and strigolactone deficiency could override the negative impact of HXK1 deficiency on shoot branching. Our observations demonstrate that HXK1 signalling contributes to the regulation of shoot branching and interacts with hormones to modulate plant architecture.
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Affiliation(s)
- Francois F Barbier
- School of Biological Sciences, The University of Queensland, St Lucia, Qld, 4072, Australia
- Institut Agro, INRAE, IRHS, SFR QUASAV, Université Angers, Angers, 49000, France
- ARC Centre for Plant Success in Nature and Agriculture, The University of Queensland, St Lucia, Qld, 4072, Australia
| | - Da Cao
- School of Biological Sciences, The University of Queensland, St Lucia, Qld, 4072, Australia
- ARC Centre for Plant Success in Nature and Agriculture, The University of Queensland, St Lucia, Qld, 4072, Australia
| | - Franziska Fichtner
- School of Biological Sciences, The University of Queensland, St Lucia, Qld, 4072, Australia
- ARC Centre for Plant Success in Nature and Agriculture, The University of Queensland, St Lucia, Qld, 4072, Australia
| | - Christoph Weiste
- Department of Pharmaceutical Biology, Julius-von-Sachs-Institute, Biocenter, Julius-Maximilians-Universität Würzburg, Würzburg, 97082, Germany
| | | | - Mathieu Caradeuc
- Institut Agro, INRAE, IRHS, SFR QUASAV, Université Angers, Angers, 49000, France
| | - José Le Gourrierec
- Institut Agro, INRAE, IRHS, SFR QUASAV, Université Angers, Angers, 49000, France
| | - Soulaiman Sakr
- Institut Agro, INRAE, IRHS, SFR QUASAV, Université Angers, Angers, 49000, France
| | - Christine A Beveridge
- School of Biological Sciences, The University of Queensland, St Lucia, Qld, 4072, Australia
- ARC Centre for Plant Success in Nature and Agriculture, The University of Queensland, St Lucia, Qld, 4072, Australia
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8
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Xu X, Jibran R, Wang Y, Dong L, Flokova K, Esfandiari A, McLachlan ARG, Heiser A, Sutherland-Smith AJ, Brummell DA, Bouwmeester HJ, Dijkwel PP, Hunter DA. Strigolactones regulate sepal senescence in Arabidopsis. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:5462-5477. [PMID: 33970249 DOI: 10.1093/jxb/erab199] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 05/08/2021] [Indexed: 05/07/2023]
Abstract
Flower sepals are critical for flower development and vary greatly in life span depending on their function post-pollination. Very little is known about what controls sepal longevity. Using a sepal senescence mutant screen, we identified two Arabidopsis mutants with delayed senescence directly connecting strigolactones with senescence regulation in a novel floral context that hitherto has not been explored. The mutations were in the strigolactone biosynthetic gene MORE AXILLARY GROWTH1 (MAX1) and in the strigolactone receptor gene DWARF14 (AtD14). The mutation in AtD14 changed the catalytic Ser97 to Phe in the enzyme active site, which is the first mutation of its kind in planta. The lesion in MAX1 was in the haem-iron ligand signature of the cytochrome P450 protein, converting the highly conserved Gly469 to Arg, which was shown in a transient expression assay to substantially inhibit the activity of MAX1. The two mutations highlighted the importance of strigolactone activity for driving to completion senescence initiated both developmentally and in response to carbon-limiting stress, as has been found for the more well-known senescence-associated regulators ethylene and abscisic acid. Analysis of transcript abundance in excised inflorescences during an extended night suggested an intricate relationship among sugar starvation, senescence, and strigolactone biosynthesis and signalling.
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Affiliation(s)
- Xi Xu
- Massey University, School of Fundamental Sciences, Palmerston North, New Zealand
- The New Zealand Institute for Plant and Food Research Limited, Palmerston North, New Zealand
| | - Rubina Jibran
- The New Zealand Institute for Plant and Food Research Limited, Palmerston North, New Zealand
| | - Yanting Wang
- Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, The Netherlands
| | - Lemeng Dong
- Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, The Netherlands
| | - Kristyna Flokova
- Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, The Netherlands
| | - Azadeh Esfandiari
- The New Zealand Institute for Plant and Food Research Limited, Palmerston North, New Zealand
| | - Andrew R G McLachlan
- The New Zealand Institute for Plant and Food Research Limited, Palmerston North, New Zealand
| | - Axel Heiser
- Hopkirk Research Institute, AgResearch Limited, Palmerston North, New Zealand
| | | | - David A Brummell
- The New Zealand Institute for Plant and Food Research Limited, Palmerston North, New Zealand
| | - Harro J Bouwmeester
- Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, The Netherlands
| | - Paul P Dijkwel
- Massey University, School of Fundamental Sciences, Palmerston North, New Zealand
| | - Donald A Hunter
- The New Zealand Institute for Plant and Food Research Limited, Palmerston North, New Zealand
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9
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Salam BB, Barbier F, Danieli R, Teper-Bamnolker P, Ziv C, Spíchal L, Aruchamy K, Shnaider Y, Leibman D, Shaya F, Carmeli-Weissberg M, Gal-On A, Jiang J, Ori N, Beveridge C, Eshel D. Sucrose promotes stem branching through cytokinin. PLANT PHYSIOLOGY 2021; 185:1708-1721. [PMID: 33793932 PMCID: PMC8133652 DOI: 10.1093/plphys/kiab003] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 12/16/2020] [Indexed: 05/23/2023]
Abstract
Shoot branching is an important aspect of plant architecture because it substantially affects plant biology and agricultural performance. Sugars play an important role in the induction of shoot branching in several species, including potato (Solanum tuberosum L.). However, the mechanism by which sugars affect shoot branching remains mostly unknown. In the present study, we addressed this question using sugar-mediated induction of bud outgrowth in potato stems under etiolated conditions. Our results indicate that sucrose feeding to detached stems promotes the accumulation of cytokinin (CK), as well as the expression of vacuolar invertase (VInv), an enzyme that contributes to sugar sink strength. These effects of sucrose were suppressed by CK synthesis and perception inhibitors, while CK supplied to detached stems induced bud outgrowth and VInv activity in the absence of sucrose. CK-induced bud outgrowth was suppressed in vinv mutants, which we generated by genome editing. Altogether, our results identify a branching-promoting module, and suggest that sugar-induced lateral bud outgrowth is in part promoted by the induction of CK-mediated VInv activity.
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Affiliation(s)
- Bolaji Babajide Salam
- Department of Postharvest Science, The Volcani Center, ARO, Rishon LeZion, Israel
- The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of Jerusalem, Robert H. Smith Faculty of Agriculture, Food and Environment, Rehovot, Israel
| | - Francois Barbier
- The University of Queensland, School of Biological Sciences, St. Lucia, QLD 4072, Australia
| | - Raz Danieli
- Department of Postharvest Science, The Volcani Center, ARO, Rishon LeZion, Israel
| | | | - Carmit Ziv
- Department of Postharvest Science, The Volcani Center, ARO, Rishon LeZion, Israel
| | - Lukáš Spíchal
- Centre of the Region Haná for Biotechnological and Agricultural Research, Palacký University in Olomouc, Czech Republic (L.S.)
| | - Kalaivani Aruchamy
- Department of Postharvest Science, The Volcani Center, ARO, Rishon LeZion, Israel
| | - Yula Shnaider
- Department of Plant Pathology and Weed Research, The Volcani Center, ARO, Rishon LeZion, Israel
| | - Diana Leibman
- Department of Plant Pathology and Weed Research, The Volcani Center, ARO, Rishon LeZion, Israel
| | - Felix Shaya
- Department of Fruit Tree Sciences, The Volcani Center, ARO, Rishon LeZion, Israel
| | | | - Amit Gal-On
- Department of Plant Pathology and Weed Research, The Volcani Center, ARO, Rishon LeZion, Israel
| | - Jiming Jiang
- Department of Horticulture, Michigan State University, East Lansing, MI 48824, USA
| | - Naomi Ori
- The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of Jerusalem, Robert H. Smith Faculty of Agriculture, Food and Environment, Rehovot, Israel
| | - Christine Beveridge
- The University of Queensland, School of Biological Sciences, St. Lucia, QLD 4072, Australia
| | - Dani Eshel
- Department of Postharvest Science, The Volcani Center, ARO, Rishon LeZion, Israel
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10
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Wang M, Pérez-Garcia MD, Davière JM, Barbier F, Ogé L, Gentilhomme J, Voisine L, Péron T, Launay-Avon A, Clément G, Baumberger N, Balzergue S, Macherel D, Grappin P, Bertheloot J, Achard P, Hamama L, Sakr S. Outgrowth of the axillary bud in rose is controlled by sugar metabolism and signalling. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:3044-3060. [PMID: 33543244 DOI: 10.1093/jxb/erab046] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 02/01/2021] [Indexed: 05/12/2023]
Abstract
Shoot branching is a pivotal process during plant growth and development, and is antagonistically orchestrated by auxin and sugars. In contrast to extensive investigations on hormonal regulatory networks, our current knowledge on the role of sugar signalling pathways in bud outgrowth is scarce. Based on a comprehensive stepwise strategy, we investigated the role of glycolysis/the tricarboxylic acid (TCA) cycle and the oxidative pentose phosphate pathway (OPPP) in the control of bud outgrowth. We demonstrated that these pathways are necessary for bud outgrowth promotion upon plant decapitation and in response to sugar availability. They are also targets of the antagonistic crosstalk between auxin and sugar availability. The two pathways act synergistically to down-regulate the expression of BRC1, a conserved inhibitor of shoot branching. Using Rosa calluses stably transformed with GFP-fused promoter sequences of RhBRC1 (pRhBRC1), glycolysis/TCA cycle and the OPPP were found to repress the transcriptional activity of pRhBRC1 cooperatively. Glycolysis/TCA cycle- and OPPP-dependent regulations involve the -1973/-1611 bp and -1206/-709 bp regions of pRhBRC1, respectively. Our findings indicate that glycolysis/TCA cycle and the OPPP are integrative parts of shoot branching control and can link endogenous factors to the developmental programme of bud outgrowth, likely through two distinct mechanisms.
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Affiliation(s)
- Ming Wang
- Université Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, 49000 Angers, France
- College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
| | | | - Jean-Michel Davière
- Institut de Biologie Moléculaire des Plantes, Centre National de la Recherche Scientifique, Unité Propre de Recherche 2357, Conventionné avec l'Université de Strasbourg, 67084 Strasbourg, France
| | - François Barbier
- Université Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, 49000 Angers, France
- School of Biological Sciences, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Laurent Ogé
- Université Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, 49000 Angers, France
| | - José Gentilhomme
- Université Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, 49000 Angers, France
| | - Linda Voisine
- Université Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, 49000 Angers, France
| | - Thomas Péron
- Université Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, 49000 Angers, France
| | - Alexandra Launay-Avon
- Institute of Plant Sciences Paris-Saclay (IPS2), CNRS, INRA, Université Paris-Sud, Université d'Evry, Université Paris-Saclay, Bâtiment 630, Plateau de Moulon, 91192 Gif sur Yvette, France
| | - Gilles Clément
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Université Paris-Saclay, 78000 Versailles, France
| | - Nicolas Baumberger
- Institut de Biologie Moléculaire des Plantes, Centre National de la Recherche Scientifique, Unité Propre de Recherche 2357, Conventionné avec l'Université de Strasbourg, 67084 Strasbourg, France
| | - Sandrine Balzergue
- Université Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, 49000 Angers, France
| | - David Macherel
- Université Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, 49000 Angers, France
| | - Philippe Grappin
- Université Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, 49000 Angers, France
| | - Jessica Bertheloot
- Université Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, 49000 Angers, France
| | - Patrick Achard
- Institut de Biologie Moléculaire des Plantes, Centre National de la Recherche Scientifique, Unité Propre de Recherche 2357, Conventionné avec l'Université de Strasbourg, 67084 Strasbourg, France
| | - Latifa Hamama
- Université Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, 49000 Angers, France
| | - Soulaiman Sakr
- Université Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, 49000 Angers, France
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11
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Liu L, Wu Y, Zhao D, Tao J. Integrated mRNA and microRNA transcriptome analyses provide insights into paclobutrazol inhibition of lateral branching in herbaceous peony. 3 Biotech 2020; 10:496. [PMID: 33150122 DOI: 10.1007/s13205-020-02489-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Accepted: 10/14/2020] [Indexed: 11/24/2022] Open
Abstract
Herbaceous peony (Paeonia lactiflora Pall.) is a new high-end cut flower, but a large number of lateral branches often appear in some excellent cultivars, which is inconvenient for cut flower production. In the present study, we analyzed the effects of paclobutrazol (PBZ) on the lateral branches of P. lactiflora and adopted a next-generation sequencing approach to identify miRNAs and mRNAs that were differentially expressed involved in the PBZ response. Our results indicate that PBZ may inhibit the production of lateral branches on P. lactiflora. There were 827 differentially expressed genes (DEGs) and 104 differentially expressed miRNAs (DEMs). Integrative analysis revealed 29 miRNA-mRNA interactions related to PBZ stress. Our results provided a wealth of genetic information and data on metabolic pathways for revealing the regulatory mechanism of PBZ inhibition of the development of lateral branches in P. lactiflora and provided a new possibility for reducing lateral branch formation in the production of herbaceous peony cut flowers.
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Affiliation(s)
- Lei Liu
- College of Horticulture, Xinyang College of Agriculture and Forestry, Xinyang, 464000 China
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009 China
- Jiangsu Key Laboratory of Crop Genetics and Physiology/College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009 China
| | - Yanqing Wu
- Institutes of Agricultural Science and Technology Development, Yangzhou University/Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou, 225009 China
| | - Daqiu Zhao
- Jiangsu Key Laboratory of Crop Genetics and Physiology/College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009 China
| | - Jun Tao
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009 China
- Jiangsu Key Laboratory of Crop Genetics and Physiology/College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009 China
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12
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Mitchell MC, Pritchard J, Okada S, Zhang J, Venables I, Vanhercke T, Ral J. Increasing growth and yield by altering carbon metabolism in a transgenic leaf oil crop. PLANT BIOTECHNOLOGY JOURNAL 2020; 18:2042-2052. [PMID: 32069385 PMCID: PMC7539989 DOI: 10.1111/pbi.13363] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 02/11/2020] [Indexed: 05/14/2023]
Abstract
Engineering high biomass plants that produce oil (triacylglycerol or TAG) in vegetative rather than seed-related tissues could help meet our growing demand for plant oil. Several studies have already demonstrated the potential of this approach by creating transgenic crop and model plants that accumulate TAG in their leaves and stems. However, TAG synthesis may compete with other important carbon and energy reserves, including carbohydrate production, and thereby limit plant growth. The aims of this study were thus: first, to investigate the effect of TAG accumulation on growth and development of previously generated high leaf oil tobacco plants; and second, to increase plant growth and/or oil yields by further altering carbon fixation and partitioning. This study showed that TAG accumulation varied with leaf and plant developmental stage, affected leaf carbon and nitrogen partitioning and reduced the relative growth rate and final biomass of high leaf oil plants. To overcome these growth limitations, four genes related to carbon fixation (encoding CBB cycle enzymes SBPase and chloroplast-targeted FBPase) or carbon partitioning (encoding sucrose biosynthetic enzyme cytosolic FBPase and lipid-related transcription factor DOF4) were overexpressed in high leaf oil plants. In glasshouse conditions, all four constructs increased early growth without affecting TAG accumulation while chloroplast-targeted FBPase and DOF4 also increased final biomass and oil yields. These results highlight the reliance of plant growth on carbon partitioning, in addition to carbon supply, and will guide future attempts to improve biomass and TAG accumulation in transgenic leaf oil crops.
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Affiliation(s)
- Madeline C. Mitchell
- RMIT UniversityMelbourneVicAustralia
- Food Agility Cooperative Research CentreSydneyNSWAustralia
- Commonwealth Scientific and Industrial Research OrganisationCanberraACTAustralia
| | - Jenifer Pritchard
- Commonwealth Scientific and Industrial Research OrganisationCanberraACTAustralia
| | - Shoko Okada
- Commonwealth Scientific and Industrial Research OrganisationCanberraACTAustralia
| | - Jing Zhang
- Commonwealth Scientific and Industrial Research OrganisationCanberraACTAustralia
| | - Ingrid Venables
- Commonwealth Scientific and Industrial Research OrganisationCanberraACTAustralia
| | - Thomas Vanhercke
- Commonwealth Scientific and Industrial Research OrganisationCanberraACTAustralia
| | - Jean‐Philippe Ral
- Commonwealth Scientific and Industrial Research OrganisationCanberraACTAustralia
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13
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Liu H, Wen Y, Cui M, Qi X, Deng R, Gao J, Cheng Z. Histological, Physiological and Transcriptomic Analysis Reveal Gibberellin-Induced Axillary Meristem Formation in Garlic ( Allium sativum). PLANTS (BASEL, SWITZERLAND) 2020; 9:plants9080970. [PMID: 32751960 PMCID: PMC7464525 DOI: 10.3390/plants9080970] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 07/10/2020] [Accepted: 07/15/2020] [Indexed: 05/11/2023]
Abstract
The number of cloves in a garlic bulb is controlled by axillary meristem differentiation, which directly determines the propagation efficiency. Our previous study showed that injecting garlic plants with gibberellins (GA3) solution significantly increased clove number per bulb. However, the physiological and molecular mechanism of GA-induced axillary bud formation is still unknown. Herein, dynamic changes in histology, phytohormones, sugars and related genes expression at 2, 4, 8, 16 and 32 days after treatment (DAT) were investigated. Histological results indicated two stages (axillary meristem initiation and dormancy) were in the period of 0-30 days after GA3 treatment. Application of GA3 caused a significant increase of GA3 and GA4, and the downregulation of AsGA20ox expression. Furthermore, the change trends in zeatin riboside (ZR) and soluble sugar were the same, in which a high level of ZR at 2 DAT and high content of soluble sugar, glucose and fructose at 4 DAT were recorded, and a low level of ZR and soluble sugar arose at 16 and 32 DAT. Overall, injection of GA3 firstly caused the downregulation of AsGA20ox, a significant increase in the level of ZR and abscisic acid (ABA), and the upregulation of AsCYP735 and AsAHK to activate axillary meristem initiation. Low level of ZR and soluble sugar and a high level of sucrose maintained axillary meristem dormancy.
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14
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Zhu Y, Wagner D. Plant Inflorescence Architecture: The Formation, Activity, and Fate of Axillary Meristems. Cold Spring Harb Perspect Biol 2020; 12:cshperspect.a034652. [PMID: 31308142 DOI: 10.1101/cshperspect.a034652] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The above-ground plant body in different plant species can have very distinct forms or architectures that arise by recurrent redeployment of a finite set of building blocks-leaves with axillary meristems, stems or branches, and flowers. The unique architectures of plant inflorescences in different plant families and species, on which this review focuses, determine the reproductive success and yield of wild and cultivated plants. Major contributors to the inflorescence architecture are the activity and developmental trajectories adopted by axillary meristems, which determine the degree of branching and the number of flowers formed. Recent advances in genetic and molecular analyses in diverse flowering plants have uncovered both common regulatory principles and unique players and/or regulatory interactions that underlie inflorescence architecture. Modulating activity of these regulators has already led to yield increases in the field. Additional insight into the underlying regulatory interactions and principles will not only uncover how their rewiring resulted in altered plant form, but will also enhance efforts at optimizing plant architecture in desirable ways in crop species.
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Affiliation(s)
- Yang Zhu
- Department of Biology, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - Doris Wagner
- Department of Biology, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
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15
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Bertheloot J, Barbier F, Boudon F, Perez-Garcia MD, Péron T, Citerne S, Dun E, Beveridge C, Godin C, Sakr S. Sugar availability suppresses the auxin-induced strigolactone pathway to promote bud outgrowth. THE NEW PHYTOLOGIST 2020; 225:866-879. [PMID: 31529696 DOI: 10.1111/nph.16201] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 09/09/2019] [Indexed: 05/21/2023]
Abstract
Apical dominance occurs when the growing shoot tip inhibits the outgrowth of axillary buds. Apically-derived auxin in the nodal stem indirectly inhibits bud outgrowth via cytokinins and strigolactones. Recently, sugar deprivation was found to contribute to this phenomenon. Using rose and pea, we investigated whether sugar availability interacts with auxin in bud outgrowth control, and the role of cytokinins and strigolactones, in vitro and in planta. We show that sucrose antagonises auxin's effect on bud outgrowth, in a dose-dependent and coupled manner. Sucrose also suppresses strigolactone inhibition of outgrowth and the rms3 strigolactone-perception mutant is less affected by reducing sucrose supply. However, sucrose does not interfere with the regulation of cytokinin levels by auxin and stimulates outgrowth even with optimal cytokinin supply. These observations were assembled into a computational model in which sucrose represses bud response to strigolactones, largely independently of cytokinin levels. It quantitatively captures our observed dose-dependent sucrose-hormones effects on bud outgrowth and allows us to express outgrowth response to various combinations of auxin and sucrose levels as a simple quantitative law. This study places sugars in the bud outgrowth regulatory network and paves the way for a better understanding of branching plasticity in response to environmental and genotypic factors.
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Affiliation(s)
- Jessica Bertheloot
- IRHS, INRA, Agrocampus-Ouest, Université d'Angers, SFR 4207 QuaSaV, 49071, Beaucouzé, France
| | - François Barbier
- IRHS, INRA, Agrocampus-Ouest, Université d'Angers, SFR 4207 QuaSaV, 49071, Beaucouzé, France
- School of Biological Sciences, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Frédéric Boudon
- CIRAD, UMR AGAP & Univ. Montpellier, Avenue Agropolis, TA A-108/01, F-34398, Montpellier, France
| | | | - Thomas Péron
- IRHS, INRA, Agrocampus-Ouest, Université d'Angers, SFR 4207 QuaSaV, 49071, Beaucouzé, France
| | - Sylvie Citerne
- Institut Jean-Pierre Bourgin Centre de Versailles-Grignon (IJPB), INRA, Agro-ParisTech, CNRS, Versailles, France
| | - Elizabeth Dun
- School of Biological Sciences, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Christine Beveridge
- School of Biological Sciences, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Christophe Godin
- Laboratoire Reproduction et Développement des Plantes, University of Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRA, Inria, F-69342, Lyon, France
| | - Soulaiman Sakr
- IRHS, INRA, Agrocampus-Ouest, Université d'Angers, SFR 4207 QuaSaV, 49071, Beaucouzé, France
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16
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Schneider A, Godin C, Boudon F, Demotes-Mainard S, Sakr S, Bertheloot J. Light Regulation of Axillary Bud Outgrowth Along Plant Axes: An Overview of the Roles of Sugars and Hormones. FRONTIERS IN PLANT SCIENCE 2019; 10:1296. [PMID: 31681386 PMCID: PMC6813921 DOI: 10.3389/fpls.2019.01296] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 09/18/2019] [Indexed: 05/06/2023]
Abstract
Apical dominance, the process by which the growing apical zone of the shoot inhibits bud outgrowth, involves an intricate network of several signals in the shoot. Auxin originating from plant apical region inhibits bud outgrowth indirectly. This inhibition is in particular mediated by cytokinins and strigolactones, which move from the stem to the bud and that respectively stimulate and repress bud outgrowth. The action of this hormonal network is itself modulated by sugar levels as competition for sugars, caused by the growing apical sugar sink, may deprive buds from sugars and prevents bud outgrowth partly by their signaling role. In this review, we analyze recent findings on the interaction between light, in terms of quantity and quality, and apical dominance regulation. Depending on growth conditions, light may trigger different pathways of the apical dominance regulatory network. Studies pinpoint to the key role of shoot-located cytokinin synthesis for light intensity and abscisic acid synthesis in the bud for R:FR in the regulation of bud outgrowth by light. Our analysis provides three major research lines to get a more comprehensive understanding of light effects on bud outgrowth. This would undoubtedly benefit from the use of computer modeling associated with experimental observations to deal with a regulatory system that involves several interacting signals, feedbacks, and quantitative effects.
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Affiliation(s)
- Anne Schneider
- IRHS, INRA, Agrocampus-Ouest, Université d’Angers, SFR 4207 QuaSaV, Beaucouzé, France
| | - Christophe Godin
- Laboratoire Reproduction et Développement des Plantes, Univ Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRA, INRIA, Lyon, France
| | | | | | - Soulaiman Sakr
- IRHS, INRA, Agrocampus-Ouest, Université d’Angers, SFR 4207 QuaSaV, Beaucouzé, France
| | - Jessica Bertheloot
- IRHS, INRA, Agrocampus-Ouest, Université d’Angers, SFR 4207 QuaSaV, Beaucouzé, France
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17
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Barbier FF, Dun EA, Kerr SC, Chabikwa TG, Beveridge CA. An Update on the Signals Controlling Shoot Branching. TRENDS IN PLANT SCIENCE 2019; 24:220-236. [PMID: 30797425 DOI: 10.1016/j.tplants.2018.12.001] [Citation(s) in RCA: 154] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 12/11/2018] [Accepted: 12/20/2018] [Indexed: 05/21/2023]
Abstract
Many new questions on the regulation of shoot branching have been raised in recent years, prompting a review and reassessment of the role of each signal involved. Sugars and their signaling networks have been attributed a major role in the early events of axillary bud outgrowth, whereas cytokinin appears to play a critical role in the modulation of this process in response to the environment. Perception of the recently discovered hormone strigolactone is now quite well understood, while the downstream targets remain largely unknown. Recent literature has highlighted that auxin export from a bud is important for its subsequent growth.
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Affiliation(s)
- Francois F Barbier
- The University of Queensland, School of Biological Sciences, St. Lucia, QLD 4072, Australia
| | - Elizabeth A Dun
- The University of Queensland, School of Biological Sciences, St. Lucia, QLD 4072, Australia; These authors contributed equally to this publication
| | - Stephanie C Kerr
- The University of Queensland, School of Biological Sciences, St. Lucia, QLD 4072, Australia; These authors contributed equally to this publication
| | - Tinashe G Chabikwa
- The University of Queensland, School of Biological Sciences, St. Lucia, QLD 4072, Australia
| | - Christine A Beveridge
- The University of Queensland, School of Biological Sciences, St. Lucia, QLD 4072, Australia.
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18
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Otori K, Tanabe N, Tamoi M, Shigeoka S. Sugar Transporter Protein 1 (STP1) contributes to regulation of the genes involved in shoot branching via carbon partitioning in Arabidopsis. Biosci Biotechnol Biochem 2018; 83:472-481. [PMID: 30488772 DOI: 10.1080/09168451.2018.1550355] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
We previously demonstrated that alterations in sugar partitioning affect the expression of genes involved in hormone biosynthesis and responses, including BRANCHED1 (BRC1), resulting in enhanced shoot branching in transgenic Arabidopsis plants overexpressing cyanobacterial fructose-1,6-bisphosphatase-II in the cytosol (AcF). The exogenous treatment of wild-type Arabidopsis plants with sugars showed the same transcript characteristics, indicating that sugars act as a signal for branching. We also found that the reductions induced in BRC1 expression levels in wild-type plants by the sugar treatments were suppressed in the knockout mutant of sugar transporter 1 (stp1-1). Intracellular sugar contents were similar in stp1-1 and wild-type plants following the sugar treatments, suggesting that STP1 acts as a factor for the regulation of shoot branching depending on extracellular sugar contents. Abbreviations: BRC1: BRABCHED1; FBP/SBPase: fructose-1,6-/sedoheptulose-1,7-bisphosphatase; Glc: glucose; HXK: hexokinase; SnRK1.1/AKIN10: SNF1-RELATED PROTEIN KINASE 1.1; Suc: sucrose; SnRK1: sucrose non-fermenting 1-related protein kinase; STP: sugar transporter protein.
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Affiliation(s)
- Kumi Otori
- a Department of Advanced Bioscience, Faculty of Agriculture , Kindai University , Nara , Japan
| | - Noriaki Tanabe
- a Department of Advanced Bioscience, Faculty of Agriculture , Kindai University , Nara , Japan
| | - Masahiro Tamoi
- a Department of Advanced Bioscience, Faculty of Agriculture , Kindai University , Nara , Japan
| | - Shigeru Shigeoka
- a Department of Advanced Bioscience, Faculty of Agriculture , Kindai University , Nara , Japan
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19
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Effects of Calcium Alginate Submicroparticles on Seed Germination and Seedling Growth of Wheat ( Triticum aestivum L.). Polymers (Basel) 2018; 10:polym10101154. [PMID: 30961078 PMCID: PMC6403849 DOI: 10.3390/polym10101154] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 10/05/2018] [Accepted: 10/06/2018] [Indexed: 11/26/2022] Open
Abstract
Calcium alginate (CaAlg) submicroparticles have a potential application in agricultural delivery systems. This study investigated the effects of CaAlg submicroparticles on seed germination and seedling growth of wheat. CaAlg submicroparticles with a Z-average diameter of around 250.4 nm and a measured zeta potential value of about −25.4 mV were prepared and characterized by dynamic light scattering (DLS), scanning electron microscopy (SEM) and energy dispersive X-ray spectrometer (EDS). After this, the effects of the concentration of CaAlg submicroparticles (10–500 μg/mL) on germination percentage, seedling length, the number of adventitious roots, chlorophyll content and soluble protein content were evaluated. The results demonstrated a significant increase in the level of germination percentage (9.0%), seedling index (50.3%), adventitious roots (27.5%), seedling length (17.0%), chlorophyll (8.7%) and soluble protein contents (4.5%) at a concentration of 100 μg/mL. However, an inhibitory effect was observed at a concentration of 500 μg/mL. The SEM examination showed that CaAlg submicroparticles could be successfully adsorbed onto the surface of the wheat seed. Further studies proved that CaAlg submicroparticles at a concentration of 100 μg/mL promoted the expression of indole-3-acetic acid (IAA)-related genes (YUCCA9, AUX1, ARF and UGT) in wheat, which resulted in an increase of 69% and 21% in IAA concentration in wheat roots and shoots, respectively.
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20
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Sakr S, Wang M, Dédaldéchamp F, Perez-Garcia MD, Ogé L, Hamama L, Atanassova R. The Sugar-Signaling Hub: Overview of Regulators and Interaction with the Hormonal and Metabolic Network. Int J Mol Sci 2018; 57:2367-2379. [PMID: 30149541 DOI: 10.1093/pcp/pcw157] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 08/07/2018] [Accepted: 09/05/2016] [Indexed: 05/25/2023] Open
Abstract
Plant growth and development has to be continuously adjusted to the available resources. Their optimization requires the integration of signals conveying the plant metabolic status, its hormonal balance, and its developmental stage. Many investigations have recently been conducted to provide insights into sugar signaling and its interplay with hormones and nitrogen in the fine-tuning of plant growth, development, and survival. The present review emphasizes the diversity of sugar signaling integrators, the main molecular and biochemical mechanisms related to the sugar-signaling dependent regulations, and to the regulatory hubs acting in the interplay of the sugar-hormone and sugar-nitrogen networks. It also contributes to compiling evidence likely to fill a few knowledge gaps, and raises new questions for the future.
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Affiliation(s)
- Soulaiman Sakr
- Institut de Recherche en Horticulture et Semences, Agrocampus-Ouest, INRA, Université d'Angers, SFR 4207 QUASAV, F-49045 Angers, France.
| | - Ming Wang
- Institut de Recherche en Horticulture et Semences, Agrocampus-Ouest, INRA, Université d'Angers, SFR 4207 QUASAV, F-49045 Angers, France.
| | - Fabienne Dédaldéchamp
- Equipe "Sucres & Echanges Végétaux-Environnement", Ecologie et Biologie des Interactions, Université de Poitiers, UMR CNRS 7267 EBI, Bâtiment B31, 3 rue Jacques Fort, TSA 51106, 86073 Poitiers CEDEX 9, France.
| | - Maria-Dolores Perez-Garcia
- Institut de Recherche en Horticulture et Semences, Agrocampus-Ouest, INRA, Université d'Angers, SFR 4207 QUASAV, F-49045 Angers, France.
| | - Laurent Ogé
- Institut de Recherche en Horticulture et Semences, Agrocampus-Ouest, INRA, Université d'Angers, SFR 4207 QUASAV, F-49045 Angers, France.
| | - Latifa Hamama
- Institut de Recherche en Horticulture et Semences, Agrocampus-Ouest, INRA, Université d'Angers, SFR 4207 QUASAV, F-49045 Angers, France.
| | - Rossitza Atanassova
- Equipe "Sucres & Echanges Végétaux-Environnement", Ecologie et Biologie des Interactions, Université de Poitiers, UMR CNRS 7267 EBI, Bâtiment B31, 3 rue Jacques Fort, TSA 51106, 86073 Poitiers CEDEX 9, France.
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21
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Sakr S, Wang M, Dédaldéchamp F, Perez-Garcia MD, Ogé L, Hamama L, Atanassova R. The Sugar-Signaling Hub: Overview of Regulators and Interaction with the Hormonal and Metabolic Network. Int J Mol Sci 2018; 19:ijms19092506. [PMID: 30149541 PMCID: PMC6165531 DOI: 10.3390/ijms19092506] [Citation(s) in RCA: 105] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 08/07/2018] [Accepted: 08/13/2018] [Indexed: 12/31/2022] Open
Abstract
Plant growth and development has to be continuously adjusted to the available resources. Their optimization requires the integration of signals conveying the plant metabolic status, its hormonal balance, and its developmental stage. Many investigations have recently been conducted to provide insights into sugar signaling and its interplay with hormones and nitrogen in the fine-tuning of plant growth, development, and survival. The present review emphasizes the diversity of sugar signaling integrators, the main molecular and biochemical mechanisms related to the sugar-signaling dependent regulations, and to the regulatory hubs acting in the interplay of the sugar-hormone and sugar-nitrogen networks. It also contributes to compiling evidence likely to fill a few knowledge gaps, and raises new questions for the future.
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Affiliation(s)
- Soulaiman Sakr
- Institut de Recherche en Horticulture et Semences, Agrocampus-Ouest, INRA, Université d'Angers, SFR 4207 QUASAV, F-49045 Angers, France.
| | - Ming Wang
- Institut de Recherche en Horticulture et Semences, Agrocampus-Ouest, INRA, Université d'Angers, SFR 4207 QUASAV, F-49045 Angers, France.
| | - Fabienne Dédaldéchamp
- Equipe "Sucres & Echanges Végétaux-Environnement", Ecologie et Biologie des Interactions, Université de Poitiers, UMR CNRS 7267 EBI, Bâtiment B31, 3 rue Jacques Fort, TSA 51106, 86073 Poitiers CEDEX 9, France.
| | - Maria-Dolores Perez-Garcia
- Institut de Recherche en Horticulture et Semences, Agrocampus-Ouest, INRA, Université d'Angers, SFR 4207 QUASAV, F-49045 Angers, France.
| | - Laurent Ogé
- Institut de Recherche en Horticulture et Semences, Agrocampus-Ouest, INRA, Université d'Angers, SFR 4207 QUASAV, F-49045 Angers, France.
| | - Latifa Hamama
- Institut de Recherche en Horticulture et Semences, Agrocampus-Ouest, INRA, Université d'Angers, SFR 4207 QUASAV, F-49045 Angers, France.
| | - Rossitza Atanassova
- Equipe "Sucres & Echanges Végétaux-Environnement", Ecologie et Biologie des Interactions, Université de Poitiers, UMR CNRS 7267 EBI, Bâtiment B31, 3 rue Jacques Fort, TSA 51106, 86073 Poitiers CEDEX 9, France.
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Tan M, Li G, Liu X, Cheng F, Ma J, Zhao C, Zhang D, Han M. Exogenous application of GA 3 inactively regulates axillary bud outgrowth by influencing of branching-inhibitors and bud-regulating hormones in apple (Malus domestica Borkh.). Mol Genet Genomics 2018; 293:1547-1563. [PMID: 30116947 DOI: 10.1007/s00438-018-1481-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 08/12/2018] [Indexed: 11/24/2022]
Abstract
Although gibberellin (GA) has been reported to control branching, little is known about how GA mediates signals regulating the outgrowth of axillary buds (ABs). In the current study, the effect of the exogenous application of 5.0 mM GA3 on ABs outgrowth on 1-year-old 'Nagafu No. 2'/T337/M. robusta Rehd. apple trees was investigated and compared to the bud-activating treatments, 5 mM BA or decapitation. Additionally, the expression of genes related to bud-regulating signals and sucrose levels in ABs was examined. Results indicated that GA3 did not promote ABs' outgrowth, nor down-regulate the expression of branching repressors [MdTCP40, MdTCP33, and MdTCP16 (homologs of BRANCHED1 and BRC2)], which were significantly inhibited by the BA and decapitation treatments. MdSBP12 and MdSBP18, the putative transcriptional activators of these genes, which are expressed at lower levels in BA-treated and decapitated buds, were up-regulated in the GA3 treatment in comparison to the BA treatment. Additionally, GA3 did not up-regulate the expression of CK response- and auxin transport-related genes, which were immediately induced by the BA treatment. In addition, GA3 also up-regulated the expression of several Tre6P biosynthesis genes and reduced sucrose levels in ABs. Sucrose levels, however, were still higher than what was observed in BA-treated buds, indicating that sucrose may not be limiting in GA3-controlled AB outgrowth. Although GA3 promoted cell division, it was not sufficient to induce AB outgrowth. Conclusively, some branching-inhibiting genes and bud-regulating hormones are associated with the inability of GA3 to activate AB outgrowth.
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Affiliation(s)
- Ming Tan
- College of Horticulture, Northwest A & F University, Yangling, 712100, Shaanxi, China
| | - Guofang Li
- College of Horticulture, Northwest A & F University, Yangling, 712100, Shaanxi, China
| | - Xiaojie Liu
- College of Horticulture, Northwest A & F University, Yangling, 712100, Shaanxi, China
| | - Fang Cheng
- College of Horticulture, Northwest A & F University, Yangling, 712100, Shaanxi, China
| | - Juanjuan Ma
- College of Horticulture, Northwest A & F University, Yangling, 712100, Shaanxi, China
| | - Caiping Zhao
- College of Horticulture, Northwest A & F University, Yangling, 712100, Shaanxi, China
| | - Dong Zhang
- College of Horticulture, Northwest A & F University, Yangling, 712100, Shaanxi, China
| | - Mingyu Han
- College of Horticulture, Northwest A & F University, Yangling, 712100, Shaanxi, China.
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23
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De Porcellinis AJ, Nørgaard H, Brey LMF, Erstad SM, Jones PR, Heazlewood JL, Sakuragi Y. Overexpression of bifunctional fructose-1,6-bisphosphatase/sedoheptulose-1,7-bisphosphatase leads to enhanced photosynthesis and global reprogramming of carbon metabolism in Synechococcus sp. PCC 7002. Metab Eng 2018; 47:170-183. [PMID: 29510212 DOI: 10.1016/j.ymben.2018.03.001] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 02/02/2018] [Accepted: 03/01/2018] [Indexed: 12/25/2022]
Abstract
Cyanobacteria fix atmospheric CO2 to biomass and through metabolic engineering can also act as photosynthetic factories for sustainable productions of fuels and chemicals. The Calvin Benson cycle is the primary pathway for CO2 fixation in cyanobacteria, algae and C3 plants. Previous studies have overexpressed the Calvin Benson cycle enzymes, ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO) and bifunctional sedoheptulose-1,7-bisphosphatase/fructose-1,6-bisphosphatase (hereafter BiBPase), in both plants and algae, although their impacts on cyanobacteria have not yet been rigorously studied. Here, we show that overexpression of BiBPase and RuBisCO have distinct impacts on carbon metabolism in the cyanobacterium Synechococcus sp. PCC 7002 through physiological, biochemical, and proteomic analyses. The former enhanced growth, cell size, and photosynthetic O2 evolution, and coordinately upregulated enzymes in the Calvin Benson cycle including RuBisCO and fructose-1,6-bisphosphate aldolase. At the same time it downregulated enzymes in respiratory carbon metabolism (glycolysis and the oxidative pentose phosphate pathway) including glucose-6-phosphate dehydrogenase (G6PDH). The content of glycogen was also significantly reduced while the soluble carbohydrate content increased. These results indicate that overexpression of BiBPase leads to global reprogramming of carbon metabolism in Synechococcus sp. PCC 7002, promoting photosynthetic carbon fixation and carbon partitioning towards non-storage carbohydrates. In contrast, whilst overexpression of RuBisCO had no measurable impact on growth and photosynthetic O2 evolution, it led to coordinated increase in the abundance of proteins involved in pyruvate metabolism and fatty acid biosynthesis. Our results underpin that singular genetic modifications in the Calvin Benson cycle can have far broader cellular impact than previously expected. These features could be exploited to more efficiently direct carbons towards desired bioproducts.
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Affiliation(s)
- Alice Jara De Porcellinis
- Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Thorvaldsensvej 40, Frederiksberg DK-1871, Denmark; Copenhagen Plant Science Center, University of Copenhagen, Thorvaldsensvej 40, Frederiksberg DK-1871, Denmark; Carlsberg Research Laboratory, 100 Ny Carlsberg Vej, 1799 Copenhagen V, Denmark
| | - Hanne Nørgaard
- Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Thorvaldsensvej 40, Frederiksberg DK-1871, Denmark; Novo Nordisk, Novo Nordisk Park 1, 2760 Måløv, Denmark
| | - Laura Maria Furelos Brey
- Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Thorvaldsensvej 40, Frederiksberg DK-1871, Denmark; Copenhagen Plant Science Center, University of Copenhagen, Thorvaldsensvej 40, Frederiksberg DK-1871, Denmark
| | - Simon Matthé Erstad
- Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Thorvaldsensvej 40, Frederiksberg DK-1871, Denmark; Copenhagen Plant Science Center, University of Copenhagen, Thorvaldsensvej 40, Frederiksberg DK-1871, Denmark
| | - Patrik R Jones
- Department Life Sciences, Imperial College London, Sir Alexander Fleming Building, London SW7 2AZ, UK
| | - Joshua L Heazlewood
- Joint BioEnergy Institute and Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA; School of BioSciences, The University of Melbourne, Victoria 3010, Australia
| | - Yumiko Sakuragi
- Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Thorvaldsensvej 40, Frederiksberg DK-1871, Denmark; Copenhagen Plant Science Center, University of Copenhagen, Thorvaldsensvej 40, Frederiksberg DK-1871, Denmark.
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