| Title: |
Foliar spraying of boron prolongs preservation period of strawberry fruits by altering boron form and boron distribution in cell |
| Authors: |
Lei Zhang, Changgang Sun, Hui Tian, Jiamin Xu, Xiuwen Wu |
| Source: |
Frontiers in Plant Science, Vol 15 (2024) |
| Publisher Information: |
Frontiers Media S.A., 2024. |
| Publication Year: |
2024 |
| Collection: |
LCC:Plant culture |
| Subject Terms: |
boron, strawberry, fruit softening, cell wall, subcellular distribution, Plant culture, SB1-1110 |
| More Details: |
Boron (B), an essential micronutrient for fruit development, also plays a crucial role in maintaining the shelf life of strawberries (Fragaria ananassa Duch.) by affecting cell wall structure and components. We investigated the distribution pattern of B within cells and cell walls in strawberry fruits under different B levels and revealed the relationship between the B distribution in cell walls and fruit firmness after harvesting. Foliar spraying of 0.1% H3BO3 promoted the growth of strawberry seedlings and improved fruit yield and flesh firmness by 45.7% and 25.6%. During the fruit softening and decay process, the content of bound B and cell wall-B decreased while more B was allocated to the protoplast and apoplast. The changes in B distribution in cells were attributed to cell damage during fruit decay, and B extended the freshness period of the fruits by alleviating the decrease of B distribution in cell walls. After leaving the fruits at room temperature for 10 h, the B content in different cell wall components significantly decreased, while foliar spraying of B alleviated the reduction of B content in covalently bound pectin (CBP), cellulose, and hemicellulose. Meanwhile, B spraying on fruit decreased the activity of cell wall degradation enzymes, including polygalacturonase (PG) and pectin lyase (PL), by 20.2% and 38.1%, while enhancing the demethylation of pectin by increasing pectin methylesterase (PME) activity from 21.6 U/g to 25.7 U/g. Thus, foliar spraying of 0.1% H3BO3 enhances the cross-linking of B with cell wall components and maintains cell wall structure, thereby prolonging the shelf life of strawberry fruits. |
| Document Type: |
article |
| File Description: |
electronic resource |
| Language: |
English |
| ISSN: |
1664-462X |
| Relation: |
https://www.frontiersin.org/articles/10.3389/fpls.2024.1457694/full; https://doaj.org/toc/1664-462X |
| DOI: |
10.3389/fpls.2024.1457694 |
| Access URL: |
https://doaj.org/article/7a5ae45bfe504b6281df6e9167f24a06 |
| Accession Number: |
edsdoj.7a5ae45bfe504b6281df6e9167f24a06 |
| Database: |
Directory of Open Access Journals |
