ArticleScientific reports2019
Cyanide produced with ethylene by ACS and its incomplete detoxification by β-CAS in mango inflorescence leads to malformation.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed, 12 citations in OpenAlex.
- Insights Into the Regulation of Salt Tolerance by Flavonoid and Cyanoamino Acid Metabolism in Sorghum-Sudangrass Hybrids.Plant direct · 2026Article
- Decoding polyamine-ethylene dynamics: synergies at synthesis and signalling levels during osmotic stress and ripening.Frontiers in plant science · 2026Review
- Putrescine mitigates NaCl-induced stress by modulating gene expression, antioxidants, and ethylene level in tomato.Plant signaling & behavior · 2025Article
- Thiol-based Oxidative Posttranslational Modifications (OxiPTMs) of Plant Proteins.Plant & cell physiology · 2022Review
- Salicylic acid modulates ACS, NHX1, sos1 and HKT1;2 expression to regulate ethylene overproduction and NaPlant signaling & behavior · 2021Article
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Authors and funding
12 authors at 5 institutions in 3 countries.
Funding
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Abstract
Malformation of mango inflorescences (MMI) disease causes severe economic losses worldwide. Present research investigates the underlying causes of MMI. Results revealed significantly higher levels of cyanide, a by-product of ethylene biosynthesis, in malformed inflorescences (MI) of mango cultivars. There was a significant rise in ACS transcripts, ACS enzyme activity and cyanide and ethylene levels in MI as compared to healthy inflorescences (HI). Significant differences in levels of methionine, phosphate, S-adenosyl-L-methionine, S-adenosyl-L-homocysteine, ascorbate and glutathione, and activities of dehydroascorbate reductase and glutathione reductase were seen in MI over HI. Further, a lower expression of β-cyanoalanine synthase (β-CAS) transcript was associated with decreased cellular β-CAS activity in MI, indicating accumulation of unmetabolized cyanide. TEM studies showed increased gum-resinosis and necrotic cell organelles, which might be attributed to unmetabolized cyanide. In field trials, increased malformed-necrotic-inflorescence (MNI) by spraying ethrel and decreased MNI by treating with ethylene inhibitors (silver and cobalt ions) further confirmed the involvement of cyanide in MMI. Implying a role for cyanide in MMI at the physiological and molecular level, this study will contribute to better understanding of the etiology of mango inflorescence malformation, and also help manipulate mango varieties genetically for resistance to malformation.
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