Tomato seeds pretreated with Antifreeze protein type I (AFP I) promotes the germination under cold stress by regulating the genes involved in germination process.

This study was conducted to investigate the involvement of antifreeze proteins (AFPs; type I and III) in the germination mechanism of tomato seeds under low temperature stress. Germination of the seeds grown at a room temperature (25°C) was observed on 5 days after sowing (DAS), while all seeds exposed to a low temperature started to germinate at 16 days after sowing (DAS). However, in comparison with control seeds (0 µg/l), seeds treated with AFP I (100, 300, or 500 µg/l) germinated earlier and at a higher percentage until 20 DAS, and seeds treated with 100 µg/l AFP I showed the highest percentage of germination.

Silencing of the phytoene desaturase () gene affects the expression of fruit-ripening genes in tomatoes.

Background: Past research has shown that virus-induced phytoene desaturase () gene silencing via agroinjection in the attached and detached fruit of tomato plants results in a pale-yellow fruit phenotype. Although the gene is often used as a marker for gene silencing in tomatoes, little is known about the role of in fruit ripening. In this study, we investigated whether the pepper gene silenced endogenous genes in the fruit of two tomato cultivars, Dotaerang Plus and Legend Summer.

The role of antifreeze proteins in the regulation of genes involved in the response of to cold.

Cold temperatures are a major source of stress for plants and negatively impact crop yield. A possible way to protect plants is to treat them with antifreeze proteins (AFPs). Here, we investigated whether fish AFPs can shield the rare ornamental species from low-temperature stress.