Metabolic shift in sugars and amino acids regulates sprouting in Saffron corm
Abstract Saffron is one of the most expensive spices of the world. Since this spice is triploid and meiosis is unusual, it cannot reproduce sexually like other plants; rather, it is propagated vegetatively via an underground corm, which can withstand a long dry dormant period before sprouting. Thus,...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2017-09-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-017-10528-2 |
| _version_ | 1818844054039822336 |
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| author | Jayram Bagri Anupama Yadav Khalid Anwar Jeremy Dkhar Sneh Lata Singla-Pareek Ashwani Pareek |
| author_facet | Jayram Bagri Anupama Yadav Khalid Anwar Jeremy Dkhar Sneh Lata Singla-Pareek Ashwani Pareek |
| author_sort | Jayram Bagri |
| collection | DOAJ |
| description | Abstract Saffron is one of the most expensive spices of the world. Since this spice is triploid and meiosis is unusual, it cannot reproduce sexually like other plants; rather, it is propagated vegetatively via an underground corm, which can withstand a long dry dormant period before sprouting. Thus, corms are indispensable to saffron propagation. To identify and analyse signature metabolites associated with the ‘dormancy-sprouting’ process, non-targeted GC-MS was performed at different stages of corm development. Comparative metabolite profiling reflected dissimilar profiles among the stages as portrayed by differential cluster patterns of metabolites in the PCA and PLS-DA analysis. Correlation analysis revealed the interdependencies of individual metabolites and metabolic pathway. At the onset of stage 2, characterized by the initiation and differentiation of leaf primordia, a shift from dormancy to active metabolism occurred as derived from the increased abundance of sugars and other metabolites involved in the tricarboxylic acid cycle, glycolytic, amino acid and fatty acid pathways. These changes contribute to sprouting and vegetative growth of the corm. The present study provides new insights into saffron corm composition and metabolite changes associated with various stages of corm development and may pave the way for achieving agronomical improvements in this economically important spice. |
| first_indexed | 2024-12-19T05:07:39Z |
| format | Article |
| id | doaj.art-22e452c445c141b3b49c457f66393574 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-19T05:07:39Z |
| publishDate | 2017-09-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-22e452c445c141b3b49c457f663935742022-12-21T20:34:53ZengNature PortfolioScientific Reports2045-23222017-09-017111010.1038/s41598-017-10528-2Metabolic shift in sugars and amino acids regulates sprouting in Saffron cormJayram Bagri0Anupama Yadav1Khalid Anwar2Jeremy Dkhar3Sneh Lata Singla-Pareek4Ashwani Pareek5Stress Physiology and Molecular Biology Laboratory, School of Life Sciences, Jawaharlal Nehru UniversityStress Physiology and Molecular Biology Laboratory, School of Life Sciences, Jawaharlal Nehru UniversityStress Physiology and Molecular Biology Laboratory, School of Life Sciences, Jawaharlal Nehru UniversityStress Physiology and Molecular Biology Laboratory, School of Life Sciences, Jawaharlal Nehru UniversityPlant Stress Biology, International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali MargStress Physiology and Molecular Biology Laboratory, School of Life Sciences, Jawaharlal Nehru UniversityAbstract Saffron is one of the most expensive spices of the world. Since this spice is triploid and meiosis is unusual, it cannot reproduce sexually like other plants; rather, it is propagated vegetatively via an underground corm, which can withstand a long dry dormant period before sprouting. Thus, corms are indispensable to saffron propagation. To identify and analyse signature metabolites associated with the ‘dormancy-sprouting’ process, non-targeted GC-MS was performed at different stages of corm development. Comparative metabolite profiling reflected dissimilar profiles among the stages as portrayed by differential cluster patterns of metabolites in the PCA and PLS-DA analysis. Correlation analysis revealed the interdependencies of individual metabolites and metabolic pathway. At the onset of stage 2, characterized by the initiation and differentiation of leaf primordia, a shift from dormancy to active metabolism occurred as derived from the increased abundance of sugars and other metabolites involved in the tricarboxylic acid cycle, glycolytic, amino acid and fatty acid pathways. These changes contribute to sprouting and vegetative growth of the corm. The present study provides new insights into saffron corm composition and metabolite changes associated with various stages of corm development and may pave the way for achieving agronomical improvements in this economically important spice.https://doi.org/10.1038/s41598-017-10528-2 |
| spellingShingle | Jayram Bagri Anupama Yadav Khalid Anwar Jeremy Dkhar Sneh Lata Singla-Pareek Ashwani Pareek Metabolic shift in sugars and amino acids regulates sprouting in Saffron corm Scientific Reports |
| title | Metabolic shift in sugars and amino acids regulates sprouting in Saffron corm |
| title_full | Metabolic shift in sugars and amino acids regulates sprouting in Saffron corm |
| title_fullStr | Metabolic shift in sugars and amino acids regulates sprouting in Saffron corm |
| title_full_unstemmed | Metabolic shift in sugars and amino acids regulates sprouting in Saffron corm |
| title_short | Metabolic shift in sugars and amino acids regulates sprouting in Saffron corm |
| title_sort | metabolic shift in sugars and amino acids regulates sprouting in saffron corm |
| url | https://doi.org/10.1038/s41598-017-10528-2 |
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