Nitric oxide effectively curtails neck bending and mitigates senescence in isolated flowers of Calendula officinalis L.

Lone, Mohammad Lateef; Haq, Aehsan Ul; Farooq, Sumira; Altaf, Foziya; Tahir, Inayatullah

doi:10.1007/s12298-021-00969-5

Cited by 11 publications

(3 citation statements)

References 59 publications

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“…We found that SNP did not effectively inhibit curvature when the vase life period was extended to 9 days. However, SNP has been reported to delay stem bending in gerberas and Calendula officinalis [ 3 , 14 , 15 ]. This different outcome could be due to the difference in the nature of the stem structures between snapdragon and gerberas and Calendula officinalis .…”

Section: Discussionmentioning

confidence: 99%

“…In this study, higher reduction of bending rate by SNP over control at 6 DAT was associated with a significant reduction of RSE in part II. Previous studies have reported the role of SNPs in delaying stem bending in gerbera and Calendula officinalis L. [ 3 , 14 , 15 ]; however, they did not investigate the role of SNPs in the inhibition of RSE. Our results suggest that the delaying stem of bending using SNP observed in previous studies could partly be also explained by its inhibitory effect on RSE.…”

Section: Discussionmentioning

confidence: 99%

“…Ethephon has been shown to have promoting effects on lignification [ 2 , 12 , 13 ]. Delaying of stem bending by sodium nitroprusside (SNP) has been reported in gerbera and Calendula officinalis L. [ 3 , 14 , 15 ], whereas SNP promoted lignification and delayed the stem bending in cut gerbera [ 3 ]. Although ethephon has a promoting effect on lignification and preventive effect on stem bending [ 2 , 11 – 13 ], as described above, the ethylene inhibitors STS or 1-MCP blocked the gravitropic bending of snapdragon [ 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

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Characterizing the effects of different chemicals on stem bending of cut snapdragon flower

et al. 2022

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Background This study investigated the effects of ethylene release compounds (ethephon), ethylene-action inhibitors (silver thiosulfate: STS), and nitric oxide donor (sodium nitroprusside: SNP) on stem bending of snapdragon flowers. Moreover, the effects of plant growth supplements [6-benzyladenine (BA), gibberellic acid 3 (GA3), and calcium chloride (CaCl2)] on the stem bending were also extensively investigated. Results Ethephon completely prevented stem bending until 9 days after treatment (9 DAT). STS exhibited the highest bending rate, while SNP did not significantly affect the bending compared to the controls. The bending results were associated with the results of stem curvature, relative shoot elongation, ethylene production, and lignin content, that are involved in the stem bending mechanism. This was proven by the expression analysis of genes involved in ethylene and lignin biosynthetic pathways. The addition of plant growth supplements slightly or significantly delayed stem bending in the treatments (control, SNP, and STS) and significantly reduced petal senescence in ethephon at 9 DAT. Conclusion These results show the preventive role of ethephon in the stem bending of cut snapdragon. Moreover, the combination of ethephon with supplements also provided information that could guide the development of strategies to delay stem bending in other cut flowers that undergo serious bending during a short vase life.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%