http://www.london2012.com/paralympics/athletics/event/women-long-jump-f37-38/index.htmlThe 25-year-old brought the South African team home in a new world-best mark of 41.78, in the process gaining a personal triumph over Brazilian Alan Fonteles Cardoso Oliveira, who had beaten him to 200m gold on Saturday.
Pistorius was pitted in direct opposition with Alan and the USA's Blake Leeper, but he held off the Brazilian strongly down the home straight to roars from the crowd.
Brazilian and American disappointment was compounded when both teams, who had come home second and third respectively, were disqualified for changeover problems, with China and Germany promoted to silver and bronze.
'It's the most amazing experience for all of us,' said Pistorius. 'We've been practising over the last two days. We're all professional and have a job to do.
'We smashed that world record. Each guy here did his job. I said to the guys to stay calm and focused.'
Elsewhere, USA athlete Tatyana McFadden claimed her second gold medal of the Games with a dominant win in the 800m - T54.
The 23-year-old was a class apart from the rest of the field as she pulled well clear on the second lap and finished almost three seconds clear of Switzerland's Edith Wolf.
China's Zou Lihong was third.
McFadden had claimed her first Paralympic Games title by winning the 400m - T54 on Monday and is going for a possible five golds.
Earlier, Assunta Legnante won Italy's first Athletics gold of the Games with a new world record in the Shot Put - F11/12. The 34-year-old threw 16.74m, equating to 1011 points.
There was another Italian success tonight with Martina Caironi taking the 100m - T42 title.
Brazil's Terezinha Guilhermina made it double gold by winning the 100m - T11 crown in a world record 12.01.
She celebrated it in style, tangoing on to the podium with her guide runner.
Kamel Kardjena led an Algeria one-two-three as he retained his Shot Put - F32/33 title.
Russia won gold in the 4 x 100m - T11-13.