High temperature enhances ethylene promotion of anther filament growth in Brussels sprouts (Brassica oleraceavar.gemmifera)
✍ Scribed by N. L. Biddington; H. T. Robinson
- Publisher
- Springer Netherlands
- Year
- 1993
- Tongue
- English
- Weight
- 441 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0167-6903
No coin nor oath required. For personal study only.
✦ Synopsis
A study was made of the effect of high temperature on the growth response of Brussels sprout filaments to ethylene . Filaments with or without the anthers attached were incubated continuously at 25 °C or 35 °C for 7 days or for 2 days at 35'C followed by 5 days at 25'C . Growth was reduced during both 35'C treatments compared to that of filaments at continuous 25 °C . Ethylene had little effect on filament growth at continuous 25 °C, whereas with treatment for either 2 or 7 days at 35 °C ethylene promoted filament growth considerably . Thus ethylene effectively overcame the growth inhibition induced by the 35'C treatment .
High temperature treatments reduced ethylene production from filaments alone, and from filaments with anthers attached . The ethylene biosynthesis inhibitor aminoethoxyvinylglycine (AVG) and the ethylene action inhibitor AgNO 3 enhanced filament growth at 25 °C but had little or no effect at 35 °C . The relevance of temperature to ethylene sensitivity is discussed in relation to filament growth and to other plant processes in general .