The Effect of Sulfur Fertilizer on Glucoraphanin Levels in Broccoli (B. oleracea L. var. italica) at Different Growth Stages
| Autor: | Paul J. Taylor, Marc E. Nicolas, Nuchanart Rangkadilok, Richard N. Bennett, David R Eagling, Robert Premier |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Glucosinolates
Brassica engineering.material Calcium Sulfate chemistry.chemical_compound Imidoesters Oximes Cultivar Fertilizers Legume Glucoraphanin biology General Chemistry biology.organism_classification Glucose Agronomy chemistry Sinigrin Sulfoxides Glucosinolate Seeds engineering Fertilizer General Agricultural and Biological Sciences Sulfur Sulforaphane |
| Zdroj: | Journal of Agricultural and Food Chemistry. 52:2632-2639 |
| ISSN: | 1520-5118 0021-8561 |
| DOI: | 10.1021/jf030655u |
| Popis: | Three sulfur (S) treatements were imposed by applying gypsum to three broccoli cultivars (Claudia, Marathon, and TB-234) known to differ in glucoraphanin content of mature seeds. The S treatments were control (very low added S), low S (23 kg S ha(-)(1)), and high S (92 kg S ha(-)(1)). The gypsum applications during the early vegetative phase of the three broccoli cultivars increased S uptake and the glucoraphanin content in each plant organ. There were significant genotypic differences for the content of both S and glucoraphanin in all plant organs at different growth stages with gypsum applications. A large increase in S and glucoraphanin content was found in the green heads of broccoli and mature seeds. S present in glucoraphanin accounted for only 4-10% of total S content in broccoli heads. However, S present in glucoraphanin in mature seeds accounted for 40-46% of the total S in the seeds of moderate and high glucoraphanin cultivars (Marathon and TB-234). The partitioning of S into glucoraphanin also increased with gypsum applications. Differences in S uptake, S distribution between organs, and partitioning of S into glucoraphanin largely explained the differences in glucoraphanin content in the green heads and mature seeds for the three broccoli cultivars and three S treatments. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|