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Functional Analysis of a Tetragonia tetragonoides (Pall.) Kuntze Thaumatin-Like Protein Gene, TtTLP11, in Transgenic Overexpression Arabidopsis thaliana involved in Abiotic Stress Tolerance
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Zengwang HUANG1, 2, Fuying XIE1, 2, Shuguang JIAN1, Tingyao LI3, Mei ZHANG1, *
Chinese Journal of Tropical Crops | 2025, 46(10) : 2335 - 2345
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Chinese Journal of Tropical Crops | 2025, 46(10): 2335-2345
• Omics & Biotechnology •
Functional Analysis of a Tetragonia tetragonoides (Pall.) Kuntze Thaumatin-Like Protein Gene, TtTLP11, in Transgenic Overexpression Arabidopsis thaliana involved in Abiotic Stress Tolerance
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Zengwang HUANG1, 2, Fuying XIE1, 2, Shuguang JIAN1, Tingyao LI3, Mei ZHANG1, *
Affiliations
  • 1. South China Botanical Garden, Chinese Academy of Sciences / Provincial Key Laboratory of Applied Botany, Guangzhou, Guangdong 510650, China
  • 2. University of Chinese Academy of Sciences, Beijing 100049, China
  • 3. Vegetable Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong 510640, China
Published: 2025-10-25 doi: 10.3969/j.issn.1000-2561.2025.10.005
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Tetragonia tetragonoides (Pall.) Kuntze is a seawater vegetable with strong tolerance to multiple abiotic stresses. Plant thaumatin-like proteins (TLPs) are involved in various biological and abiotic stress responses. In order to elucidate the possible roles of a T. tetragonoides thaumatin-like protein gene (TtTLP11) in abiotic stress resistance, we cloned this gene and performed transgenic over-expression assay in Arabidopsis thaliana, then the homozygotic transgenic lines were obtained and performed subsequent analysis for stresses tolerance. In this study, the seeds from transgenic plants over-expressing TtTLP11 and wild type Arabidopsis plants were challenged with high salinity, high osmotic stress, heat and mixed salt-alkali stresses, by detecting the seed germinating rates, seedling growth status, thereby assessing the stress resistance of these transgenic Arabidopsis plants. The purpose of this study was to clarify the abiotic stress resistance functions of the TtTLP11 and the possible molecular mechanisms. The results showed that under various abiotic stress conditions, the over-expression of TtTLP11 could alleviate the inhibition effects of seed germination and relieve the environmental damage to seedlings, thereby improving the abiotic stress tolerance of transgenic plants. It is speculated that TtTLP11 might alleviate dramatic changes in osmotic pressure in plants and maintain water homeostasis, and then affect the stress tolerance of plants. The results could provide a theoretical basis for further analysis of the molecular regulatory network of plant response to alleviate abiotic stress damage.

Tetragonia tetragonoides (Pall.) Kuntze  /  TLP  /  abiotic stresses  /  transgenic Arabidopsis
Zengwang HUANG, Fuying XIE, Shuguang JIAN, Tingyao LI, Mei ZHANG. Functional Analysis of a Tetragonia tetragonoides (Pall.) Kuntze Thaumatin-Like Protein Gene, TtTLP11, in Transgenic Overexpression Arabidopsis thaliana involved in Abiotic Stress Tolerance[J]. Chinese Journal of Tropical Crops, 2025 , 46 (10) : 2335 -2345 . DOI: 10.3969/j.issn.1000-2561.2025.10.005
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Article Info
doi: 10.3969/j.issn.1000-2561.2025.10.005
  • Receive Date：2025-04-10
  • Online Date：2026-03-09
  • Published：2025-10-25
Article Data
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History
  • Received：2025-04-10
  • Accepted：2025-06-13
Funding
Affiliations
    1. South China Botanical Garden, Chinese Academy of Sciences / Provincial Key Laboratory of Applied Botany, Guangzhou, Guangdong 510650, China
    2. University of Chinese Academy of Sciences, Beijing 100049, China
    3. Vegetable Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong 510640, China

Corresponding:

*ZHANG Mei，E-mail：。
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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