Table II.

Relative steady-state level of endogenous ZPT2-2 mRNA in different tissues

Sample	ZPT2-2 mRNA
	%
Control leaf	100
Desiccated leaf	709
Wounded leaf	2.758
Petal (np.fl)	6.260
Petal (p.fl.)	42.431
Anther young	2.912
Anther mature	3.460
Seedlings	707

The hybridization signal to ZPT2-2 specific RT-PCR products was quantified and related to the hybridization signal to gapdh specific RT-PCR product, amplified from the same cDNA pool. The relative signal of ZPT2-2 PCR product in unstressed leaves was arbitrarily set at 100%. p.fl., Pollinated flower; np.fl., non-pollinated flower.