AI Article Synopsis

  • The study investigates the factors influencing the size of persimmon fruit, focusing on both large and small variations within the species 'Yaoxianwuhua'.
  • It identifies crucial developmental stages where larger fruits have significantly more cells than smaller ones, suggesting that cell number and division play key roles in determining fruit size.
  • The research also shows that high levels of ethylene can decrease fruit size by inhibiting cell division, providing insights for breeding and artificial size control in persimmons.

Article Abstract

Persimmon ( Thunb.) fruit size variation is abundant. Studying the size of the persimmon fruit is helpful in improving its economic value. At present, the regulatory mechanism of persimmon fruit size formation is still unclear. In this study, the mechanism of fruit size formation was investigated through morphological, cytological and transcriptomic analyses, as well as exogenous ethrel and aminoethoxyinylglycine (AVG: ethylene inhibitor) experiments using the large fruit and small fruit of 'Yaoxianwuhua'. The results showed that stages 3-4 (June 11-June 25) are the crucial morphological period for differentiation of large fruit and small fruit in persimmon. At this crucial morphological period, the cell number in large fruit was significantly more than that in small fruit, indicating that the difference in cell number is the main reason for the differentiation of persimmon fruit size. The difference in cell number was caused by cell division. , and , associated with cell division, may be involved in regulating persimmon fruit size. Exogenous ethrel resulted in a decrease in fruit weight, and AVG treatment had the opposite effect. In addition, and were upregulated after ethrel treatment. These results indicated that high ethylene levels can reduce persimmon fruit size, possibly by inhibiting cell division. This study provides valuable information for understanding the regulation mechanism of persimmon fruit size and lays a foundation for subsequent breeding and artificial regulation of fruit size.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11241297PMC
http://dx.doi.org/10.3390/ijms25137238DOI Listing

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