Table 1.

Primers used for PCR amplification

Gene	Direction	Sequence
18S	Forward	5′-TTT GAT GGT ACC TGC TAC TCG GAT AAC C
	Reverse	5′-CTC TCC GGA ATC GAA CCC TAA TTC TCC
Ubiquitin monomer to pentamer	Forward	5′-ATGCAGAT(C/T)TTTGTGAAGAC
	Reverse	5′-ACCACCACG(G/A)AGACGGAG
Actin	Forward	5′-TTG CTC TCG ACT ATG AAC AGG
	Reverse	5′-CTC TCG GCC CCA ATA GTA ATA
Mitogen-activated protein kinase	Forward	5′-CCAGGCGAGATTTCAGAGAC
	Reverse	5′-TCGGTTTAAGGTCTCGATGG
Proline transporter	Forward	5′-TTGTAGTGAGGGGCGGTTAC
	Reverse	5′-CATGCAACCAAAGAAGCAGA
l-Ascorbate oxidase homolog	Forward	5′-ACAAAAGGCATTGCTTGGTC
	Reverse	5′-GGCCAAAACGAAGTTTACCA
Gliceraldehyde-3-phosphate dehydrogenase	Forward	5′-GGGCAAGATCAAGATTGGAA
	Reverse	5′-GTCTTCTCGCCGAACAAAAG
Salicylic acid-binding protein	Forward	5′-GCATTGACCCGAAAATCCTA
	Reverse	5′-AGGATGGCGGATTTGTAGTG
S-adenosylmethionine decarboxylase proenzyme	Forward	5′-AGCTTCTGGCATCAGGAAAA
	Reverse	5′-AGCCAGTACCCTCTCAAGCA