Final answer:
The short story genre holds a special place in South African literature, often finding a platform in literary magazines. These magazines have helped shape literary trends, but without specific details, the names of the two influential literary magazines and their editors in South Africa cannot be provided.
Step-by-step explanation:
The question you're asking relates to the influence of literary magazines on the popularity of the short story genre in modern South African literature. While the question itself lacks specific details about the two literary magazines and their editors, literature in general, and the short story form, in particular, are indeed significant cultural forces in South Africa. Literary magazines often serve as a platform for emerging voices and can have a considerable impact on shaping literary tastes and trends. The short story, as a part of this literary spectrum, typically features narratives that unfold over a short time span, involve fewer characters, and contain a distinctive plot twist or climax.
Different literary sub-genres, such as science fiction, crime, and romance, have also seen wide readership and distribution through various outlets, not limited to traditional bookstores. These sub-genres are enjoyed by many for their entertainment value in storytelling. In terms of the impact of literary magazines on South African literature, without specific names and editors of the magazines in question, it's challenging to provide a definitive answer, and thus I'm unable to furnish you with the names of the two influential magazines and their respective editors.