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Ratchaseema MTN, Kladsuwan L, Soulard L, Swangmaneecharern P, Punpee P, Klomsa-Ard P, Sriroth K, Keawsompong S. The role of salicylic acid and benzothiadiazole in decreasing phytoplasma titer of sugarcane white leaf disease. Sci Rep 2021; 11:15211. [PMID: 34312478 PMCID: PMC8313703 DOI: 10.1038/s41598-021-94746-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 07/16/2021] [Indexed: 11/09/2022] Open
Abstract
The objective of this research was to study the effect of Benzothiadiazole (BTH) and Salicylic acid (SA) on the systemic acquired resistance (SAR) of sugarcane the phytoplasma associated with the sugarcane white leaf (SCWL) disease. The experiment was conducted on plants of the sugarcane variety Khon Kaen 3 (KK3) infected with SCWL phytoplasma using insect vectors. Biochemical changes related to the SAR such as SA and total phenolic compounds were followed according to 4 different timepoints: 7, 14, 21 and 28 days after inoculation. Together, phytoplasma were quantified by RT-qPCR using the secA gene of phytoplasma. According to our results, the spraying of BTH and SA tended to increase the amounts of SA, total phenolic compounds and a lower presence of phytoplasma in the plants in comparison with the inoculated control. Spraying BTH at a concentration of 2.4 mM and SA at a concentration of 2.4 mM exhibited the best efficiency to reduce the concentration of phytoplasma. According to RT-qPCR results, the inoculated plants sprayed with BTH displayed a significantly lower concentration of phytoplasma compared to the inoculated controls. Overall, our results indicated that the spray of BTH and SA could induce an efficient SAR response to the phytoplasma associated with the SCWL disease. We expect these results will give support to the development of new products for controlling white leaf disease in sugarcane.
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Affiliation(s)
- Manuwat Tintarasara Na Ratchaseema
- Mitr Phol Sugarcane and Research Center, 399 M1, Koksa-ad, Phukhieo, 36110, Chaiyaphum, Thailand.,Department of Biotechnology, Faculty of Agro-Industry, Kasetsart University, Bangkok, 10900, Thailand
| | - Lawan Kladsuwan
- Mitr Phol Sugarcane and Research Center, 399 M1, Koksa-ad, Phukhieo, 36110, Chaiyaphum, Thailand
| | - Laurent Soulard
- Mitr Phol Sugarcane and Research Center, 399 M1, Koksa-ad, Phukhieo, 36110, Chaiyaphum, Thailand
| | | | - Prapat Punpee
- Mitr Phol Sugarcane and Research Center, 399 M1, Koksa-ad, Phukhieo, 36110, Chaiyaphum, Thailand
| | - Peeraya Klomsa-Ard
- Mitr Phol Sugarcane and Research Center, 399 M1, Koksa-ad, Phukhieo, 36110, Chaiyaphum, Thailand
| | - Klanarong Sriroth
- Mitr Phol Sugarcane and Research Center, 399 M1, Koksa-ad, Phukhieo, 36110, Chaiyaphum, Thailand.,Department of Biotechnology, Faculty of Agro-Industry, Kasetsart University, Bangkok, 10900, Thailand
| | - Suttipun Keawsompong
- Department of Biotechnology, Faculty of Agro-Industry, Kasetsart University, Bangkok, 10900, Thailand.
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Ashwin NMR, Barnabas L, Ramesh Sundar A, Malathi P, Viswanathan R, Masi A, Agrawal GK, Rakwal R. CfPDIP1, a novel secreted protein of Colletotrichum falcatum, elicits defense responses in sugarcane and triggers hypersensitive response in tobacco. Appl Microbiol Biotechnol 2018; 102:6001-6021. [PMID: 29728727 DOI: 10.1007/s00253-018-9009-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Revised: 04/03/2018] [Accepted: 04/08/2018] [Indexed: 02/05/2023]
Abstract
Colletotrichum falcatum, a hemibiotrophic fungal pathogen, causes one of the major devastating diseases of sugarcane-red rot. C. falcatum secretes a plethora of molecular signatures that might play a crucial role during its interaction with sugarcane. Here, we report the purification and characterization of a novel secreted protein of C. falcatum that elicits defense responses in sugarcane and triggers hypersensitive response (HR) in tobacco. The novel protein purified from the culture filtrate of C. falcatum was identified by MALDI TOF/TOF MS and designated as C. falcatum plant defense-inducing protein 1 (CfPDIP1). Temporal transcriptional profiling showed that the level of CfPDIP1 expression was greater in incompatible interaction than the compatible interaction until 120 h post-inoculation (hpi). EffectorP, an in silico tool, has predicted CfPDIP1 as a potential effector. Functional characterization of full length and two other domain deletional variants (CfPDIP1ΔN1-21 and CfPDIP1ΔN1-45) of recombinant CfPDIP1 proteins has indicated that CfPDIP1ΔN1-21 variant elicited rapid alkalinization and induced a relatively higher production of hydrogen peroxide (H2O2) in sugarcane suspension culture. However, in Nicotiana tabacum, all the three forms of recombinant CfPDIP1 proteins triggered HR along with the induction of H2O2 production and callose deposition. Further characterization using detached leaf bioassay in sugarcane revealed that foliar priming with CfPDIP1∆1-21 has suppressed the extent of lesion development, even though the co-infiltration of CfPDIP1∆1-21 with C. falcatum on unprimed leaves increased the extent of lesion development than control. Besides, the foliar priming has induced systemic expression of major defense-related genes with the concomitant reduction of pathogen biomass and thereby suppression of red rot severity in sugarcane. Comprehensively, the results have suggested that the novel protein, CfPDIP1, has the potential to trigger a multitude of defense responses in sugarcane and tobacco upon priming and might play a potential role during plant-pathogen interactions.
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Affiliation(s)
- N M R Ashwin
- Plant Pathology Section, Division of Crop Protection, Indian Council of Agricultural Research - Sugarcane Breeding Institute, Coimbatore, Tamil Nadu, 641 007, India
| | - Leonard Barnabas
- Plant Pathology Section, Division of Crop Protection, Indian Council of Agricultural Research - Sugarcane Breeding Institute, Coimbatore, Tamil Nadu, 641 007, India
| | - Amalraj Ramesh Sundar
- Plant Pathology Section, Division of Crop Protection, Indian Council of Agricultural Research - Sugarcane Breeding Institute, Coimbatore, Tamil Nadu, 641 007, India.
| | - Palaniyandi Malathi
- Plant Pathology Section, Division of Crop Protection, Indian Council of Agricultural Research - Sugarcane Breeding Institute, Coimbatore, Tamil Nadu, 641 007, India
| | - Rasappa Viswanathan
- Plant Pathology Section, Division of Crop Protection, Indian Council of Agricultural Research - Sugarcane Breeding Institute, Coimbatore, Tamil Nadu, 641 007, India
| | - Antonio Masi
- Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Padova, Italy
| | - Ganesh Kumar Agrawal
- Research Laboratory for Biotechnology and Biochemistry, Kathmandu, Nepal
- GRADE (Global Research Arch for Developing Education) Academy Private Limited, Adarsh Nagar-13, Birgunj, Nepal
| | - Randeep Rakwal
- Research Laboratory for Biotechnology and Biochemistry, Kathmandu, Nepal
- GRADE (Global Research Arch for Developing Education) Academy Private Limited, Adarsh Nagar-13, Birgunj, Nepal
- Faculty of Health and Sport Sciences, and Tsukuba International Academy for Sport Studies (TIAS), University of Tsukuba, Tsukuba, Ibaraki, Japan
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Ashwin NMR, Barnabas L, Ramesh Sundar A, Malathi P, Viswanathan R, Masi A, Agrawal GK, Rakwal R. Comparative secretome analysis of Colletotrichum falcatum identifies a cerato-platanin protein (EPL1) as a potential pathogen-associated molecular pattern (PAMP) inducing systemic resistance in sugarcane. J Proteomics 2017; 169:2-20. [PMID: 28546091 DOI: 10.1016/j.jprot.2017.05.020] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Revised: 04/12/2017] [Accepted: 05/17/2017] [Indexed: 02/06/2023]
Abstract
Colletotrichum falcatum, an intriguing hemibiotrophic fungal pathogen causes red rot, a devastating disease of sugarcane. Repeated in vitro subculturing of C. falcatum under dark condition alters morphology and reduces virulence of the culture. Hitherto, no information is available on this phenomenon at molecular level. In this study, the in vitro secretome of C. falcatum cultured under light and dark conditions was analyzed using 2-DE coupled with MALDI TOF/TOF MS. Comparative analysis identified nine differentially abundant proteins. Among them, seven proteins were less abundant in the dark-cultured C. falcatum, wherein only two protein species of a cerato-platanin protein called EPL1 (eliciting plant response-like protein) were found to be highly abundant. Transcriptional expression of candidate high abundant proteins was profiled during host-pathogen interaction using qRT-PCR. Comprehensively, this comparative secretome analysis identified five putative effectors, two pathogenicity-related proteins and one pathogen-associated molecular pattern (PAMP) of C. falcatum. Functional characterization of three distinct domains of the PAMP (EPL1) showed that the major cerato-platanin domain (EPL1∆N1-92) is exclusively essential for inducing defense and hypersensitive response (HR) in sugarcane and tobacco, respectively. Further, priming with EPL1∆N1-92 protein induced systemic resistance and significantly suppressed the red rot severity in sugarcane. BIOLOGICAL SIGNIFICANCE Being the first secretomic investigation of C. falcatum, this study has identified five potential effectors, two pathogenicity-related proteins and a PAMP. Although many reports have highlighted the influence of light on pathogenicity, this study has established a direct link between light and expression of effectors, for the first time. This study has presented the influence of a novel N-terminal domain of EPL1 in physical and biological properties and established the functional role of major cerato-platanin domain of EPL1 as a potential elicitor inducing systemic resistance in sugarcane. Comprehensively, the study has identified proteins that putatively contribute to virulence of C. falcatum and for the first time, demonstrated the potential role of EPL1 in inducing PAMP-triggered immunity (PTI) in sugarcane.
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Affiliation(s)
- N M R Ashwin
- Division of Crop Protection, Indian Council of Agricultural Research - Sugarcane Breeding Institute, Coimbatore 641007, India
| | - Leonard Barnabas
- Division of Crop Protection, Indian Council of Agricultural Research - Sugarcane Breeding Institute, Coimbatore 641007, India
| | - Amalraj Ramesh Sundar
- Division of Crop Protection, Indian Council of Agricultural Research - Sugarcane Breeding Institute, Coimbatore 641007, India.
| | - Palaniyandi Malathi
- Division of Crop Protection, Indian Council of Agricultural Research - Sugarcane Breeding Institute, Coimbatore 641007, India
| | - Rasappa Viswanathan
- Division of Crop Protection, Indian Council of Agricultural Research - Sugarcane Breeding Institute, Coimbatore 641007, India
| | - Antonio Masi
- Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Padova 35020, Italy
| | - Ganesh Kumar Agrawal
- Research Laboratory for Biotechnology and Biochemistry, Kathmandu 13265, Nepal; GRADE (Global Research Arch for Developing Education) Academy Private Limited, Adarsh Nagar-13, Birgunj, Nepal
| | - Randeep Rakwal
- Research Laboratory for Biotechnology and Biochemistry, Kathmandu 13265, Nepal; GRADE (Global Research Arch for Developing Education) Academy Private Limited, Adarsh Nagar-13, Birgunj, Nepal; Faculty of Health and Sport Sciences, and Tsukuba International Academy for Sport Studies (TIAS), University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
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Disease suppressive effects of resistance-inducing agents against red rot of sugarcane. EUROPEAN JOURNAL OF PLANT PATHOLOGY 2017. [DOI: 10.1007/s10658-017-1181-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Molecular Profiling of Systemic Acquired Resistance (SAR)-Responsive Transcripts in Sugarcane Challenged with Colletotrichum falcatum. Appl Biochem Biotechnol 2014; 174:2839-50. [DOI: 10.1007/s12010-014-1230-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Accepted: 09/10/2014] [Indexed: 01/24/2023]
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