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Pandian BA, Varanasi A, Vennapusa AR, Thompson C, Tesso T, Prasad PVV, Jugulam M. Identification and Characterization of Mesotrione-Resistant Grain Sorghum [ Sorghum bicolor (L.) Moench]: A Viable Option for Postemergence Grass Weed Control. J Agric Food Chem 2023; 71:1035-1045. [PMID: 36602944 DOI: 10.1021/acs.jafc.2c05865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Mesotrione is effective in controlling a wide spectrum of weeds in corn but not registered for postemergence use in sorghum because of crop injury. We screened a sorghum germplasm collection and identified two mesotrione-resistant sorghum genotypes (G-1 and G-10) and one susceptible genotype (S-1) in an in vitro plate assay. A mesotrione dose-response assay under greenhouse and field conditions confirmed that G-1 and G-10 are highly resistant compared to S-1. We found enhanced metabolism of mesotrione in G-1 and G-10 using HPLC assay, and a significant reduction in biomass accumulation was found in G-1 and G-10 plants pretreated with cytochrome P450 (CYP)-inhibitors malathion or piperonyl butoxide, indicating the involvement of CYPs in the metabolism of mesotrione. Genetic analyses using F1 and F2 progenies generated by crossing G-1 and G-10 separately with S-1 revealed that mesotrione resistance in sorghum is controlled by a single dominant gene along with several genes with minor effects.
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Affiliation(s)
| | - Aruna Varanasi
- Bayer Crop Science, St. Louis, Missouri 63017, United States
| | - Amaranatha Reddy Vennapusa
- Department of Agriculture & Natural Resources, Delaware State University, Dover, Delaware 19904, United States
| | - Curtis Thompson
- Department of Agronomy, Kansas State University, Manhattan, Kansas 66506, United States
| | - Tesfaye Tesso
- Department of Agronomy, Kansas State University, Manhattan, Kansas 66506, United States
| | - P V Vara Prasad
- Department of Agronomy, Kansas State University, Manhattan, Kansas 66506, United States
- Sustainable Intensification Innovation Lab, Kansas State University, Manhattan, Kansas 66506, United States
| | - Mithila Jugulam
- Department of Agronomy, Kansas State University, Manhattan, Kansas 66506, United States
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Vennapusa AR, Agarwal S, Rao Hm H, Aarthy T, Babitha KC, Thulasiram HV, Kulkarni MJ, Melmaiee K, Sudhakar C, Udayakumar M, S Vemanna R. Stacking herbicide detoxification and resistant genes improves glyphosate tolerance and reduces phytotoxicity in tobacco (Nicotiana tabacum L.) and rice (Oryza sativa L.). Plant Physiol Biochem 2022; 189:126-138. [PMID: 36084528 DOI: 10.1016/j.plaphy.2022.08.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/15/2022] [Accepted: 08/28/2022] [Indexed: 06/15/2023]
Abstract
Glyphosate residues retained in the growing meristematic tissues or in grains of glyphosate-resistant crops affect the plants physiological functions and crop yield. Removing glyphosate residues in the plants is desirable with no penalty on crop yield and quality. We report a new combination of scientific strategy to detoxify glyphosate that reduces the residual levels and improve crop resistance. The glyphosate detoxifying enzymes Aldo-keto reductase (AKR1) and mutated glycine oxidase (mGO) with different modes of action were co-expressed with modified EPSPS, which is insensitive to glyphosate in tobacco (Nicotiana tabacum L.) and rice (Oryza sativa L.). The transgenic tobacco plants expressing individual PsAKR1, mGO, CP4-EPSPS, combinations of PsAKR1:CP4EPSPS, PsAKR1:mGO, and multigene with PsAKR1: mGO: CP4EPSPS genes were developed. The bio-efficacy studies of in-vitro leaf regeneration on different concentrations of glyphosate, seedling bioassay, and spray on transgenic tobacco plants demonstrate that glyphosate detoxification with enhanced resistance. Comparative analysis of the transgenic tobacco plants reveals that double and multigene expressing transgenics had reduced accumulation of shikimic acid, glyphosate, and its primary residue AMPA, and increased levels of sarcosine were observed in all PsAKR1 expressing transgenics. The multigene expressing rice transgenics showed improved glyphosate resistance with yield maintenance. In summary, results suggest that stacking genes with two different detoxification mechanisms and insensitive EPSPS is a potential approach for developing glyphosate-resistant plants with less residual content.
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Affiliation(s)
- Amaranatha Reddy Vennapusa
- Department of Crop Physiology, University of Agricultural Sciences, GKVK, Bangalore, 560065, India; Department of Botany, Sri Krishnadevaraya University, Anantapur, 515001, India; Department of Agriculture and Natural Resources, Delaware State University, Dover, DE, 19901, USA.
| | - Subham Agarwal
- Laboratory of Plant Functional Genomics, Regional Center for Biotechnology, Faridabad, 121001, India
| | - Hanumanth Rao Hm
- Department of Crop Physiology, University of Agricultural Sciences, GKVK, Bangalore, 560065, India
| | | | - K C Babitha
- Laboratory of Plant Functional Genomics, Regional Center for Biotechnology, Faridabad, 121001, India
| | | | | | - Kalpalatha Melmaiee
- Department of Agriculture and Natural Resources, Delaware State University, Dover, DE, 19901, USA
| | - Chinta Sudhakar
- Department of Botany, Sri Krishnadevaraya University, Anantapur, 515001, India
| | - M Udayakumar
- Department of Crop Physiology, University of Agricultural Sciences, GKVK, Bangalore, 560065, India
| | - Ramu S Vemanna
- Laboratory of Plant Functional Genomics, Regional Center for Biotechnology, Faridabad, 121001, India.
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Moghimi N, Desai JS, Bheemanahalli R, Impa SM, Vennapusa AR, Sebela D, Perumal R, Doherty CJ, Jagadish SVK. New candidate loci and marker genes on chromosome 7 for improved chilling tolerance in sorghum. J Exp Bot 2019; 70:3357-3371. [PMID: 30949711 DOI: 10.1093/jxb/erz143] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 03/20/2019] [Indexed: 06/09/2023]
Abstract
Sorghum is often exposed to suboptimal low temperature stress under field conditions, particularly at the seedling establishment stage. Enhancing chilling tolerance will facilitate earlier planting and so minimize the negative impacts of other stresses experienced at later growth stages. Genome-wide association mapping was performed on a sorghum association panel grown under control (30/20 °C; day/night) and chilling (20/10 °C) conditions. Genomic regions on chromosome 7, controlling the emergence index and seedling (root and shoot) vigor, were associated with increased chilling tolerance but they did not co-localize with undesirable tannin content quantitative trait loci (QTLs). Shoot and root samples from highly contrasting haplotype pairs expressing differential responses to chilling stress were used to identify candidate genes. Three candidate genes (an alpha/beta hydrolase domain protein, a DnaJ/Hsp40 motif-containing protein, and a YTH domain-containing RNA-binding protein) were expressed at significantly higher levels under chilling stress in the tolerant haplotype compared with the sensitive haplotype and BTx623. Moreover, two CBF/DREB1A transcription factors on chromosome 2 showed a divergent response to chilling in the contrasting haplotypes. These studies identify haplotype differences on chromosome 7 that modulate chilling tolerance by either regulating CBF or feeding back into this signaling pathway. We have identified new candidate genes that will be useful markers in ongoing efforts to develop tannin-free chilling-tolerant sorghum hybrids.
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Affiliation(s)
- Naghmeh Moghimi
- Department of Agronomy, Kansas State University, Manhattan, KS, USA
| | - Jigar S Desai
- Department of Molecular and Structural Biochemistry, North Carolina State University, Raleigh, NC, USA
| | | | - Somayanda M Impa
- Department of Agronomy, Kansas State University, Manhattan, KS, USA
| | | | - David Sebela
- Department of Agronomy, Kansas State University, Manhattan, KS, USA
| | - Ramasamy Perumal
- Agricultural Research Center, Kansas State University, Hays, KS, USA
| | - Colleen J Doherty
- Department of Molecular and Structural Biochemistry, North Carolina State University, Raleigh, NC, USA
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Nisarga KN, Vemanna RS, Kodekallu Chandrashekar B, Rao H, Vennapusa AR, Narasimaha A, Makarla U, Basavaiah MR. Aldo-ketoreductase 1 (AKR1) improves seed longevity in tobacco and rice by detoxifying reactive cytotoxic compounds generated during ageing. Rice (N Y) 2017; 10:11. [PMID: 28409435 PMCID: PMC5391344 DOI: 10.1186/s12284-017-0148-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Accepted: 03/17/2017] [Indexed: 05/03/2023]
Abstract
BACKGROUND Maintenance of seed viability is an important factor for seedling vigour and plant establishment. Lipid peroxidation mediated reactive carbonyl compounds (RCC's) and non-enzymatic modifications of proteins through Maillard and Amadori products reduce seed viability and seedling vigour. RESULTS In this study, the relevance of RCCs on genotypic variation in rice seed viability and overexpression of an aldo-ketoreductase (AKR1) enzyme that detoxify cytotoxic compounds to improve seed viability and vigour was studied. Physiological and biochemical approaches were integrated to quantify the variation in seed viability and seedling vigour in rice genotypes after exposing to ageing treatment. AKR1 was overexpressed in a susceptible rice genotype and tobacco to study the relevance of reduced RCC's on seed viability and seedling vigour. The glycation and lipid peroxidation compounds accumulated after accelerated ageing treatments in rice genotypes. The accumulation of malondialdehyde, methyl glyoxal, Maillard and Amadori products affected the seed viability and germination as they showed a significant negative relationship. The transgenic rice and tobacco seeds expressing AKR1 showed lower levels of cytotoxic compounds and glycation products that resulted in improved seed viability and seedling vigour in rice and tobacco. CONCLUSIONS The study demonstrates that, reactive cytotoxic compounds affect the seed viability during storage. Detoxification of reactive cytotoxic compounds by Aldo-keto reductases is one of the mechanisms to improve the seed longevity during storage.
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Affiliation(s)
| | - Ramu S Vemanna
- Department of Crop Physiology, University of Agriculture Sciences, GKVK, Bengaluru, 560065, India
| | | | - Hanumantha Rao
- Department of Crop Physiology, University of Agriculture Sciences, GKVK, Bengaluru, 560065, India
| | | | - Ashwini Narasimaha
- Department of Crop Physiology, University of Agriculture Sciences, GKVK, Bengaluru, 560065, India
| | - Udayakumar Makarla
- Department of Crop Physiology, University of Agriculture Sciences, GKVK, Bengaluru, 560065, India.
| | - Mohan Raju Basavaiah
- Department of Crop Physiology, University of Agriculture Sciences, GKVK, Bengaluru, 560065, India
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Nisarga KN, Vemanna RS, Chandrashekar BK, Rao H, Vennapusa AR, Narasimaha A, Makarla U, Basavaiah MR. Erratum to: Aldo-ketoreductase 1 (AKR1) improves seed longevity in tobacco and rice by detoxifying reactive cytotoxic compounds generated during ageing. Rice (N Y) 2017; 10:19. [PMID: 28500410 PMCID: PMC5429317 DOI: 10.1186/s12284-017-0160-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 05/04/2017] [Indexed: 05/14/2023]
Affiliation(s)
| | - Ramu S Vemanna
- Department of Crop Physiology, University of Agriculture Sciences, GKVK, Bengaluru, 560065, India
| | | | - Hanumantha Rao
- Department of Crop Physiology, University of Agriculture Sciences, GKVK, Bengaluru, 560065, India
| | | | - Ashwini Narasimaha
- Department of Crop Physiology, University of Agriculture Sciences, GKVK, Bengaluru, 560065, India
| | - Udayakumar Makarla
- Department of Crop Physiology, University of Agriculture Sciences, GKVK, Bengaluru, 560065, India.
| | - Mohan Raju Basavaiah
- Department of Crop Physiology, University of Agriculture Sciences, GKVK, Bengaluru, 560065, India
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Vemanna RS, Vennapusa AR, Easwaran M, Chandrashekar BK, Rao H, Ghanti K, Sudhakar C, Mysore KS, Makarla U. Aldo-keto reductase enzymes detoxify glyphosate and improve herbicide resistance in plants. Plant Biotechnol J 2017; 15:794-804. [PMID: 27611904 PMCID: PMC5466437 DOI: 10.1111/pbi.12632] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 08/31/2016] [Indexed: 05/19/2023]
Abstract
In recent years, concerns about the use of glyphosate-resistant crops have increased because of glyphosate residual levels in plants and development of herbicide-resistant weeds. In spite of identifying glyphosate-detoxifying genes from microorganisms, the plant mechanism to detoxify glyphosate has not been studied. We characterized an aldo-keto reductase gene from Pseudomonas (PsAKR1) and rice (OsAKR1) and showed, by docking studies, both PsAKR1 and OsAKR1 can efficiently bind to glyphosate. Silencing AKR1 homologues in rice and Nicotiana benthamiana or mutation of AKR1 in yeast and Arabidopsis showed increased sensitivity to glyphosate. External application of AKR proteins rescued glyphosate-mediated cucumber seedling growth inhibition. Regeneration of tobacco transgenic lines expressing PsAKR1 or OsAKRI on glyphosate suggests that AKR can be used as selectable marker to develop transgenic crops. PsAKR1- or OsAKRI-expressing tobacco and rice transgenic plants showed improved tolerance to glyphosate with reduced accumulation of shikimic acid without affecting the normal photosynthetic rates. These results suggested that AKR1 when overexpressed detoxifies glyphosate in planta.
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Affiliation(s)
- Ramu S. Vemanna
- Department of Crop PhysiologyUniversity of Agricultural SciencesGKVKBangaloreIndia
- Plant Biology DivisionThe Samuel Roberts Noble FoundationArdmoreOKUSA
| | - Amaranatha Reddy Vennapusa
- Department of Crop PhysiologyUniversity of Agricultural SciencesGKVKBangaloreIndia
- Department of BotanySri Krishnadevaraya UniversityAnantapurIndia
| | - Murugesh Easwaran
- Department of BioinformaticsCentre for BioinformaticsBharathiar UniversityCoimbatoreIndia
| | - Babitha K. Chandrashekar
- Department of Crop PhysiologyUniversity of Agricultural SciencesGKVKBangaloreIndia
- Plant Biology DivisionThe Samuel Roberts Noble FoundationArdmoreOKUSA
| | - Hanumantha Rao
- Department of Crop PhysiologyUniversity of Agricultural SciencesGKVKBangaloreIndia
- Present address: Orris Life SciencesBangaloreIndia
| | - Kirankumar Ghanti
- Department of Crop PhysiologyUniversity of Agricultural SciencesGKVKBangaloreIndia
- Present address: Monsanto Research CenterBangaloreIndia
| | - Chinta Sudhakar
- Department of BotanySri Krishnadevaraya UniversityAnantapurIndia
| | | | - Udayakumar Makarla
- Department of Crop PhysiologyUniversity of Agricultural SciencesGKVKBangaloreIndia
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