RRC ID 81554
Author Syariful Mubarok, Nurul Jadid, Ani Widiastuti, Deden Derajat Matra, Rahmat Budiarto, Fitrianti Widya Lestari, Anne Nuraini, Erni Suminar, Bayu Pradana Nur Rahmat, Hiroshi Ezura
Title Parthenocarpic tomato mutants, iaa9-3 and iaa9-5, show plant adaptability and fruiting ability under heat-stress conditions
Journal Frontiers in Plant Science
Abstract Fruit set is one of the main problems that arise in tomato plants under heat-stress conditions, which disrupt pollen development, resulting in decreased pollen fertility. Parthenocarpic tomatoes can be used to increase plant productivity during failure of the fertilisation process under heat-stress conditions. The aim of this study were to identify the plant adaptability and fruiting capability of ?iaa9-3 and iaa9-5 tomato mutants under heat-stress conditions. The iaa9-3 and iaa9-5 and wild-type Micro-Tom (WT-MT) plants were cultivated under two temperature conditions: normal and heat-stress conditions during plant growth. The results showed that under the heat-stress condition, iaa9-3 and iaa9-5 showed delayed flowering time, increased number of flowers, and increased fruit set and produced normal-sized fruit. However, WT-MT cannot produce fruits under heat stress. The mutants can grow under heat-stress conditions, as indicated by the lower electrolyte leakage and H2O2 concentration and higher antioxidant activities compared with WT-MT under heat-stress conditions. These results suggest that iaa9-3 and iaa9-5 can be valuable genetic resources for the development of tomatoes in high-temperature environmental conditions.
Volume 14
Published 2023-3-1
DOI 10.3389/fpls.2023.1090774
PMID 36938002
PMC PMC10014533
Resource
Tomato TOMJPE2811-1 TOMJPG0114-1 TOMJPF00001 TOMJPF00009