NOTTINGHAM, England (AP) " South Africa's bowlers made good progress despite Joe Root's sizzling 78 as England struggled to 184-6 to tea on the second day of the second test on Saturday.

England was 151 runs behind South Africa's first innings of 335, with just four wickets in hand, but would have been much further adrift if not for skipper Root's flashing half-century.

Root was the one batsman to handle the overcast, bowler-friendly conditions at Trent Bridge " apparently with ease " as he struck 12 fours, reached his half-century off 40 balls, and faced just 76 deliveries for his 78.

Around him, England wasn't so comfortable.

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The home team was 3-2 when Root arrived after openers Alastair Cook (3) and Keaton Jennings (0) fell off successive deliveries.

And Root's dismissal, to a thin edge behind off Morne Morkel, started an England slide where it lost 3-33.

Overall, nine wickets fell for 210 runs in the first two sessions of the day as the South Africans were bundled out in the morning after continuing on 309-6. James Anderson's blistering spell of 4-4 meant England wrapped up the South African tail in just 6.2 overs, with Anderson taking the last four wickets for figures of 5-72.

Anderson needed just 20 deliveries to finish off South Africa. He started by removing Vernon Philander (54) in the first over of the day and finished with a caught and bowled to remove Chris Morris for 36.

While both team's quick bowlers found an abundance of swing at Trent Bridge, and the batsmen generally struggled against pace, South Africa took two crucial wickets just before tea through left-arm spinner Keshav Maharaj.

Maharaj found extra bounce to have Ben Stokes caught by wicketkeeper Quinton de Kock after a juggle " and after a review to check the ball hadn't clipped De Kock's helmet before he completed the catch.

Maharaj then produced a ball as good as any from the seamers over the last two days, pitching near middle and spinning away to hit off stump and remove Jonny Bairstow for 45 as he threatened to lead England's rebuilding.

Moeen Ali was 14 not out and Liam Dawson 2 not out at tea.