Table 1.

Summary of results

	Microspore cultures					Suspension cell cultures
	Control	Stress treated		4-day culture		Control	Stress treated
		Non-embryogenic cell	Embryogenic cell	Non-embryogenic cell	Embryogenic cell
Evans Blue (death)	+/–	++	−	+++	−	+/–	++
Caspase 3 activity	−	+		+++		−	++
Reactive oxygen species
O2.−	−	++	−	−	−	−	++
H2O2						−	++
NO	−	−	+	−	++	−	++