Anjul Agarwal
anjul_g@rediffmail.com
International Journal of ChemTech Research
IJCTR
0974-4290
2455-9555
10.20902/CT
http://www.sphinxsai.com/chemtech.php
2018
11
10
Comparative study of quality changes in Lowland Transgenic RNAiACO1(T2) Tomato Fruit during Storage at Ambient and Low Temperature
M. E.
Najat
1
H.
Maizom
2
Z.
Zamri
2,3
M. Alhdad
Gazala
4
Department of Plant, Faculty of Science, University of Misurata, Misurata 4419, Libya
Institute of Systems Biology (INBIOSIS), Universiti Kebangsaan Malaysia, 43600
Bangi, Selangor, Malaysia
School of Bioscience and Biotechnology, Universiti Kebangsaan Malaysia, 43600
Bangi, Selangor, Malaysia
Department of Plant, Faculty of Science, University of Sirte , Sirte Libya
2018
75
83
111011
10.20902/IJCTR.2018.111011
http://dx.doi.org/10.20902/IJCTR.2018.111011
Tomatoes (Solanum lycopersicum L.) are sensitive to the low temperature and easy
to be subjected to chilling injury, which causes fruit ripening disorder. This study aimed to
investigate the effects of the low temperature on development internal CI symptoms of the
wild type and transgenic RNAi ACO1-21 tomato fruit during prolonged storage. This study
focuses on the efficacy down regulating ACO1 gene tomato on its quality during the cold
storage as comparison to wild type tomato fruit. Tomato fruit was firstly stored at 10° C for 28
days, followed by ripening at 28°C for 10 and 18 days in non-transgenic and lowland
transgenic tomato fruit respectively. Chilling injury symptoms such as pitting was observed
with more sheet pitting and deeper peel depression in non-transgenic tomato fruit after
transferred to ambient temperature (28°C). However, no significant injury and cells were a
normal appearance of transgenic RNAi ACO1-21 tomato fruit at the same storage conditions.
The results also showed that fruit of lowland transgenic RNAiACO1-21 tomato experienced a
significant delayed in skin color development, weight loss and reduced firmness loss
compared to the non-transgenic tomato fruit. Furthermore, the transgenic RNAiACO1-21
tomato fruit stored at 10 ºC retain shelf life for 18 days at ambient temperature without any
spoilage from chilling injury (CI). While, non-transgenic retain shelf life only 4 days. Thus it
may be concluded that the Lowland transgenic RNAiACO1-21 able to delay the softening
process and further storage at low temperature extended the postharvest life and maintained
the quality of the tomato fruit
http://sphinxsai.com/2018/ch_vol11_no10/1/(75-83)V11N10CT.pdf
Transgenic tomato
Storage conditions
Physical quality
Ripening
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