Application of the thick rattan gene iperd15
A gene and amino acid technology, which is applied in the field of application of the salt-tolerant and drought-resistant gene IpERD15, can solve the problems that breeding methods cannot meet people's needs, and achieve the effect of improving salt tolerance
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experiment example 1
[0046] Experimental Example 1: Cloning of the IpERD15 gene of Austenitum vine and construction of the IpERD15-pYES2 vector.
[0047] Specifically, the method comprises the following steps: extraction of total RNA, construction of cDNA library and gene cloning. Each step is mainly summarized as follows: (1) total RNA extraction
[0048] Take about 1g of the young roots, leaves, vines and leaf buds of the thick rattan, add liquid nitrogen and grind them thoroughly, use the MAGEN RNA extraction kit, and extract according to the instructions. The quality and concentration of RNA were determined with a Nanodrop micro-spectrophotometer.
[0049] (2) Construction of cDNA primary library
[0050] Use the Promega MMLV reverse transcription kit to synthesize the first strand of cDNA, take about 2 μg of the total RNA of the thick rattan, add 0.5 μg Oligo(dT)Primer and RNase-free H 2 O to a total volume of 15μL; 70°C for 5min, add 5μL M-MLV 5X Reaction Buffer and 5μL 10mM dNTP, 25units...
experiment example 2
[0055] Experimental example 2: Overexpression of IpERD15 gene in yeast improves the tolerance of yeast to salt and oxidative stress
[0056] (1) Yeast strain transformed with IpERD15-pYES2
[0057] Adjust the concentration of the constructed and sequence-verified IpERD15-pYES2 recombinant plasmid to 0.1 μg / μL, and use the lithium acetate transformation method to transform the yeast salt-sensitive mutant AXT3 and the corresponding wild-type yeast strain (W303), and transform the yeast to H 2 o 2 Sensitive mutants yap1Δ and skn7Δ and corresponding wild-type yeast strains (WT). At the same time, the yeast expression vector empty vector pYES2 was used as a control, and the above-mentioned yeast strains were respectively transformed to construct the Saccharomyces cerevisiae recombinant expression vector IpERD15-pYES2 (see figure 2 ).
[0058] (2) Overexpression of IpERD15 in yeast salt-sensitive mutant strain AXT3 and wild-type strain W303 improves salt tolerance of transgenic...
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