TY - JOUR
T1 - Parthenocarpic tomato mutants, iaa9-3 and iaa9-5, show plant adaptability and fruiting ability under heat-stress conditions
AU - Mubarok, Syariful
AU - Jadid, Nurul
AU - Widiastuti, Ani
AU - Derajat Matra, Deden
AU - Budiarto, Rahmat
AU - Lestari, Fitrianti Widya
AU - Nuraini, Anne
AU - Suminar, Erni
AU - Pradana Nur Rahmat, Bayu
AU - Ezura, Hiroshi
N1 - Publisher Copyright:
Copyright © 2023 Mubarok, Jadid, Widiastuti, Derajat Matra, Budiarto, Lestari, Nuraini, Suminar, Pradana Nur Rahmat and Ezura.
PY - 2023
Y1 - 2023
N2 - 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.
AB - 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.
KW - auxin
KW - heat stress
KW - mutant
KW - parthenocarpic
KW - tomato
UR - http://www.scopus.com/inward/record.url?scp=85150180775&partnerID=8YFLogxK
U2 - 10.3389/fpls.2023.1090774
DO - 10.3389/fpls.2023.1090774
M3 - Article
AN - SCOPUS:85150180775
SN - 1664-462X
VL - 14
JO - Frontiers in Plant Science
JF - Frontiers in Plant Science
M1 - 1090774
ER -