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Abstract
Two full-length lipid transfer protein (LTP) cDNAs were isolated from mungbean (Vigna radiata) and designated Vrltp1 and Vrltp2. The deduced amino acid sequences contain the two highly conserved pentapeptides characteristic of plant LTPIs suggesting these Vrltps belong to the LTPI gene family. Vrltp1 mRNA was detected in developing seeds, but Vrltp2 mRNA was not. Within the vegetative tissues, the Vrltp1 and Vrltp2 mRNAs were present only in leaves and stems, but not root tips. Salt and dehydration stresses and exogenous abscisic acid (ABA) treatments resulted in increased mRNA levels of both Vrltps in leaves. We suggest that these unique Vrltps are specific to growing shoot tissues, and may play an important role in plant acclimation to water stress.