Abstract: The present invention provides an electrolytic solution comprising a lithium salt and an organic solvent, wherein the lithium salt has a concentration of 2.0 mol/L or more and 3.0 mol/L or less, the lithium salt comprises a first lithium salt and a second lithium salt, the first lithium salt is lithium bis(fluorosulfonyl)imide, and the second lithium salt is one or more selected from the group consisting of lithium hexafluorophosphate, lithium difluoro(oxalato)borate and lithium difluorophosphate.

Abstract: An expression system is provided, including a first nucleic acid fragment containing a long intergenic region (LIR) derived from geminivirus, a small intergenic region (SIR) derived from geminivirus, and an expression cassette of a target protein linked between the LIR and the SIR and a second nucleic acid fragment containing an expression cassette of a Rep/RepA protein derived from geminivirus, in which the expression cassette of the target protein includes a promoter, a nucleic acid fragment encoding the target protein, and two or more linked terminators in this order.

Abstract: A heat-tolerant tomato plant exhibiting a high capacity for developing seed-containing fruits under high temperature conditions is provided. The present invention relates to a method for producing a heat-tolerant tomato plant comprising introducing a genetic mutation into a tomato plant, wherein the mutation improves the pollen viability and the capacity for developing seed-containing fruits under high temperature conditions compared with wild-type plant; and a heat-tolerant tomato plant into which the mutation has been introduced.

Abstract: A heat-tolerant tomato plant exhibiting a high capacity for developing seed-containing fruits under high temperature conditions is provided. The present invention relates to a method for producing a heat-tolerant tomato plant comprising introducing a genetic mutation into a tomato plant, wherein the mutation improves the pollen viability and the capacity for developing seed-containing fruits under high temperature conditions compared with wild-type plant; and a heat-tolerant tomato plant into which the mutation has been introduced.