The discovery and development of compounds counteracting ethylene at the receptor level

Tomato Root Penetration in Soil Requires a Coaction between Ethylene and Auxin Signaling

“…Figure 1D shows that seedlings germinated in the presence of both 1-MCP and ethylene displayed increases in root penetration with increasing ethylene concentration, indicating that ethylene could counteract the 1-MCP-induced inhibition of root penetration. This agrees with previous reports that exogenously applied ethylene can partially restore the 1-MCP-induced inhibition of ethylene receptors in some plant species (Sisler et al, 1996;Binder and Bleecker, 2003;Feng et al, 2004;Sisler, 2006). Taken together, these observations strongly support a role of ethylene in regulating root penetration.…”

“…In conformity with previous studies, roots of tomato seedlings grown in the presence of 1-MCP, an inhibitor of ethylene receptors (Sisler et al, 1996;Binder and Bleecker, 2003;Feng et al, 2004;Sisler, 2006), failed to penetrate in the Soilrite. Likewise, roots of the ethylene-resistant mutant Nr also failed to enter the Soilrite, a response that was exacerbated by the application of 1-MCP.…”

“…To study the role of ethylene in root growth in tomato, we germinated tomato seeds on Soilrite in the presence of 1-methylcyclopropene (1-MCP), an inhibitor of ethylene receptors (Sisler et al, 1996;Sisler, 2006). Amazingly, in contrast to control seedlings, which showed normal penetration, the roots of the 1-MCP-treated seedlings failed to penetrate into the Soilrite and grew in the air, forming loops (Fig.…”

Effect of 1- Methyl Cyclopropene Concentration, Storage Time and Temperature on Postharvest Quality and Shelflife of Tomato Fruit

“…Control Fruits (Tomato Cv. US-440) T 1 1-MCP at 0.5 µl -L + 24 hr exposure time+ 20 º C storage temperature T 2 1-MCP at 1 µl -L + 24 hr exposure time + 20 º C storage temperature T 3 1-MCP at 1.5 µl -L + 24 hr exposure time + 20 º C storage temperature T 4 1-MCP at 2 µl -L + 24 hr exposure time + 20 º C storage temperature T 5 1-MCP at 0.5 µl -L + 24 hr exposure time + Room temperature T 6 1-MCP at 1 µl -L + 24 hr exposure time + Room temperature T 7 1-MCP at 1.5 µl -L + 24 hr exposure time + Room temperature T 8 1-MCP at 2 µl -L + 24 hr exposure time + Room temperature T 9 1-MCP at 0.5 µl -L + 12 hr exposure time + 20 º C storage temperature T 10 1-MCP at 1 µl -L + 12 hr exposure time + 20 º C storage temperature T 11 1-MCP at 1.5 µl -L + 12 hr exposure time + 20 º C storage temperature T 12 1-MCP at 2 µl -L + 12 hr exposure time + 20 º C storage temperature T 13 1-MCP at 0.5 µl -L + 12 hr exposure time + Room temperature T 14 1-MCP at 1 µl -L + 12 hr exposure time + Room temperature T 15 1-MCP at 1.5 µl -L + 12 hr exposure time + Room temperature T 16 1-MCP at 2 µl -L + 12 hr exposure time + Room temperature Table 5 shows that, tomato fruits treated with 1-MCP at 2.0µl/L concentration exposed for 24 hr at 20 o C storage temperature found highest shelf life of 33 days, along with gradual increase in TSS (%) from 1.3 to 3.1%, as compared to the rest of treatments given to the ethylene untreated fruit at 0.5,1.0,1.5µl/L concentration, for 24 hr exposure time, at 20 0 C and control fruit in which TSS (%) was increased from 1.2 to 3.7, 1.6 to 3.2, 1.4 to 3.6 and 1.4 to 3.3% in 24,27 and 30 days, respectively. Results were found in close approximity with results obtained by (17).…”

1-Methylcyclopropene (MCP)-Containing Cellulose Paper Packaging for Fresh Fruit and Vegetable Preservation: A Review

“…1-MCP is a gas at room temperature and pressure. It has been continually attracting research/commercial interest because of its effective, environmental, and non-toxic inhibition of ethylene perception at extremely low concentrations (Sisler 2006). The product was approved by the United States Environmental Protection Agency (EPA) in 1999 for ornamentals and is sold under the trade name EthylBloc (Blankenship and Dole 2003).…”