South Africa 43-0 after skittling Australia for 85

South Africa's teammates celebrate the wicket of Australia's David Warner, second left, after he was caught behind for 1 run during their cricket test match in Hobart, Australia, Saturday, Nov. 12, 2016. (AP Photo/Rick Rycroft)

HOBART, Australia (AP) Openers Dean Elgar and Stephen Cook navigated 18 overs without any trouble as South Africa reached tea at 43-0 on Saturday after skittling Australia for 85 on day one of the second cricket test.

Cook was unbeaten on 23 and Elgar was 17 from 60 balls.

The two innings were a contrast at Bellerive, with the Australian batsmen struggling early on against Vernon Philander (5-21) in overcast conditions and on a green-tinged pitch.

Captain Steve Smith was stranded unbeaten on 48 when he ran out of batting partners as Australia succumbed to its lowest total in a test on home soil since 1984.

South Africa won the first test in Perth by 177 runs and is well on top after the first two sessions of the second test after winning the toss and sending the Australians in to bat.

Smith went to the crease with Australia already 2-2, having lost both openers inside the first two overs, and lost four partners in quick succession before Australia limped to lunch at 43-6. Smith faced 80 balls and was two shy of a half century when No. 11 Nathan Lyon was caught behind by Quinton de Kock off Philander.

The South African bowling spearhead took three wickets for three runs and came close to a hat-trick in an opening spell of 6.2 overs before being forced from the field after a mid-pitch collision with Smith in the 13th over.

He made full use of the swing available to the bowlers, setting in motion the Australian collapse when he dismissed David Warner (1) with the last ball of his opening over.

Kyle Abbott, called up as a replacement for the injured Dale Steyn, also claimed a wicket with the last ball of his first over, dismissing Joe Burns (1).

Philander then struck a double blow in the ninth over when he dismissed Usman Khawaja (4) and Adam Voges on consecutive balls to have Australia reeling at 8-4.

Callum Ferguson, making a belated test debut at 31, was left to face a hat-trick ball in his first test innings. Ferguson barely survived a delivery which angled into middle stump, then never looked comfortable before being run out for 3.

The run out occurred only three balls after Philander left the field in pain from a shoulder injury after his collision with Smith, and left Australia 17-5. Ferguson was beaten by a direct hit from substitute fielder Dane Vilas.

Smith had short-lived support from wicketkeeper Peter Nevill, who made 3 from 25 balls before falling lbw to Kagiso Rabada, hero of South Africa's 177-run win in the first test at Perth.

Philander returned after the lunch interval and bowled test rookie Joe Mennie for 10, triggering a second collapse as Australia lost its last four wickets for 26 runs.