Harpin Hpa1 promotes flower development in Impatiens and Parochetus plants
| Autor: | Yilan Dong, Ping Li, Chunling Zhang |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Anthocyanin
0106 biological sciences 0301 basic medicine Balsam Plant growth media_common.quotation_subject Impatiens spp Plant Science Insect 01 natural sciences Flowering 03 medical and health sciences chemistry.chemical_compound Ornamental plant Botany Parochetus communis media_common biology Crop yield fungi food and beverages biology.organism_classification Hpa110-42 030104 developmental biology chemistry Parochetus Original Article Impatiens 010606 plant biology & botany |
| Zdroj: | Botanical Studies |
| ISSN: | 1999-3110 |
| DOI: | 10.1186/s40529-016-0132-z |
| Popis: | Background The harpin protein Hpa1 has multiple beneficial effects in plants, promoting plant growth and development, increasing crop yield, and inducing plant resistance to pathogens and insect pests. In these effects, the 10–40 residue fragment (Hpa110–42) isolated from the Hpa1 sequence is 1.3 to 7.5-fold more effective than the full length. Results This study extends the beneficial effects of Hpa1 and Hpa110–42 to flower development in three species of the garden balsam Impatiens and the garden scoparius Parochetus communis plant. The external application of Hpa1 or Hpa110–42 to the four ornamental plants had three effects, i.e., promoting flower growth, retarding senescence of fully expanded flowers, and increasing anthocyanin concentrations in those flowers and therefore improving their ornamental visages. Based on quantitative comparisons, Hpa110–42 was at least 17 and 42 % more effective than Hpa1 to increase anthocyanin concentrations and to promote the growth of flowers or delay their senescence. Conclusion Our results suggest that Hpa1 and especially Hpa110–42 have a great potential of horticultural application to increase ornamental merits of the different garden plants. |
| Databáze: | OpenAIRE |
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