Chemical Compounds Interacting With the Ethylene Receptor in Ornamental Crops

Serek, M.; Sisler, Edward C.; Mibus, H.

doi:10.17660/actahortic.2015.1060.2

Cited by 7 publications

(9 citation statements)

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“…These findings are consistent with studies which have indicated that STS is capable of transport through the phloem and xylem vascular systems (Beyer 1976;Veen and van de Geijn 1978). The target tissue for the observed effects on floral development are consistent with findings that indicate ethylene elicits flower senescence via direct signaling in floral tissues (Serek et al 2006(Serek et al , 2015.…”

Section: Sts Benefit Is Via Blocking Ethylene Responses In the Shoot supporting

confidence: 91%

“…Various inhibitors of key enzymes in ethylene synthesis have been used to decrease the rate of ethylene formation (Kosugi et al 2014;Serek et al 2006). Alternatively, chemical agents such as 1-methylcyclopropene (1-MCP) and silver (Ag + ), which bind to the ethylene receptor and thereby block its signal transduction, have been used to prevent ethylene signalling (Beyer 1976;Serek et al 2006;Serek et al 2015;Veen 1983;Veen and van de Geijn 1978). However, preliminary trials with 1-MCP were not effective in improving flowering in cassava (Supplementary Table S1, worksheets PGR 4 and 5).…”

Section: Introductionmentioning

confidence: 99%

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The anti-ethylene growth regulator silver thiosulfate (STS) increases flower production and longevity in cassava (Manihot esculenta Crantz)

et al. 2019

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Cassava, which produces edible starchy roots, is an important staple food for hundreds of millions of people in the tropics. Breeding of cassava is hampered by its poor flower production, flower abortion, and lack of reproductive prolificacy. The current work determined that ethylene signalling affects floral development in cassava and that the anti-ethylene plant growth regulator silver thiosulfate (STS) mitigates the effects of ethylene on flower development. STS did not affect the timing of flower initiation, but improved early inflorescence and flower development as well as flower longevity such that flower numbers were increased. STS did not affect shoot and storage root growth. Studies of silver accumulation and treatment localization support the hypothesis that the beneficial effects of STS are confined to tissues of the shoot apex. The most effective timing of application was before inflorescence appearance extending to post-flower appearance. Based on this work a recommended protocol for STS use was developed. This work has the potential to improve methods for enhancing cassava flower development in breeding nurseries and thereby synchronize flowering of desired parents and enable the production of abundant progeny of desired crosses.

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Section: Sts Benefit Is Via Blocking Ethylene Responses In the Shoot supporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

The anti-ethylene growth regulator silver thiosulfate (STS) increases flower production and longevity in cassava (Manihot esculenta Crantz)

et al. 2019

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“…While the combination of STS and BA provided considerable benefit to flower and fruit production, it had some phytotoxicity effects on leaves. Such phytotoxicity has been previously reported for STS (Serek et al 2012;Høyer 1998;Hyde et al 2020) in cassava and other species and it is generally tolerated given that the benefit for flower and fruit production outweighs the negative effects. In the current field application, however, PGR treatment significantly decreased the number of plants that survived until harvest at about 12 months.…”

Section: Discussionmentioning

confidence: 69%

Enhancing cassava reproductive development does not negatively impact shoot to root ratio and dry matter content in storage roots

Oluwasanya

Setter

2020

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From previous studies we developed treatments that significantly improved cassava female flower and fruit development, using a combination of the anti-ethylene, silver thiosulfate (STS), and the cytokinin, benzyladenine (BA); collectively referred to as plant growth regulators (PGR). In this study, we investigated whether the benefit derived from this treatment altered partitioning of photosynthate to other sinks and general vegetative growth of cassava in the first six months of plants growth, when reproductive growth initiates and peaks. Our flower enhancing treatment did not significantly alter shoot and storage root fresh weight, partitioning index on a fresh weight basis and percent dry matter content of storage roots between Months 2 and 5. With the onset of the dry season in Month 6, PGR treated plants had higher shoot and storage root fresh weight than controls but these plant parts responded proportionally and so partitioning index between controls and treated plants was not significantly different. The nighttime starch export under PGR treatments was reduced at Months 2, 4 and 5 but this was not correlated with flower development at these months. The survival of PGR treated plants until harvest was however reduced owing to increased mortality arising from phytotoxicity and increased susceptibility to disease. We therefore conclude that PGRs have effects more directly on flower and fruit reproductive signaling and regulatory pathways rather than on an indirect effect on resource partitioning.

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“…1-Methylcyclopropene (1-MCP) is a cyclic alkene and also an ethylene antagonist that binds to ethylene receptors in plant cells and inhibits ethylene binding, preventing signal transduction and ethylene action ( Lurie, 2006 ; Serek et al, 2015 ). 1-MCP is one of the postharvest agents used to delay spoilage, thus improving the shelf-life, quality, and flavor of many climacteric fruit and vegetables.…”

Section: Introductionmentioning

confidence: 99%

Storage Stability of Nutritional Qualities, Enzyme Activities, and Volatile Compounds of “Hangjiao No. 2” Chili Pepper Treated With Different Concentrations of 1-Methyl Cyclopropene

et al. 2022

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This study aimed to determine the effects of different concentrations of 1-methyl cyclopropene (1-MCP) on the nutritional quality, antioxidant enzyme activities, and volatile compounds of “Hangjiao No.2” chili pepper during 12 days of storage at ambient temperature. The chili fruit were randomly selected and divided into four groups corresponding to the four treatments, thus, 0.5, 1.0, and 1.5 μl L–1 1-MCP and a control. The analysis of the nutritional value, enzyme activities, and volatile compounds were determined at 3 days interval. The results showed that the malondialdehyde (MDA) content was lower in the fruit treated with 1-MCP compared to the control. The treatment with 1.5 μl L–1 and the control showed the lowest superoxide dismutase (SOD) activity compared to the other treatments. Peroxidase (POD) and Catalase (CAT) were highest in the fruit treated with 0.5 μl L–1 compared to the control and treatment with 1.0 μl L–1. The 1.5 μl L–1 treatment delayed the decline in vitamin C and protein content compared to the control. Nitrate levels increased 1.34-fold at 0.5 μl L–1 and 2.01-fold in the control. Chlorophyll content degradation was delayed at 1.0 μl L–1 compared to the control. A total of 88 volatile compounds, including terpenes, aldehydes, alkanes, esters, alcohols, acids, phenolic derivatives, ketones, and other aromatic compounds, were detected in “Hangjiao No.2” pepper during the 12-day storage period and treatment concentrations. The production of volatile terpenes was higher in the control than in the 1-MCP treatments, while the 0.5 μl L–1 1-MCP treatment generally suppressed the production of volatile compounds during storage. Overall, the production of volatile compounds after treatment was higher in the “Hangjiao No.2” chili fruit treated with 1.0 μl L–1 1-MCP than in the other treatments throughout the storage period. The results indicate that 1-MCP treatment was more effective in maintaining fruit quality, enhancing the activities of SOD, POD, and CAT, retarding the accumulation of MDA and restoring volatile aromas, with 1.0 μl L–1 having the best preservative effect on “Hangjiao No.2” chili fruit during storage, which could be useful for future marketing and processing.

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Chemical Compounds Interacting With the Ethylene Receptor in Ornamental Crops

Cited by 7 publications

References 0 publications

The anti-ethylene growth regulator silver thiosulfate (STS) increases flower production and longevity in cassava (Manihot esculenta Crantz)

The anti-ethylene growth regulator silver thiosulfate (STS) increases flower production and longevity in cassava (Manihot esculenta Crantz)

Enhancing cassava reproductive development does not negatively impact shoot to root ratio and dry matter content in storage roots

Storage Stability of Nutritional Qualities, Enzyme Activities, and Volatile Compounds of “Hangjiao No. 2” Chili Pepper Treated With Different Concentrations of 1-Methyl Cyclopropene

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