Abscisic acid (ABA) inhibition of lateral root formation involves endogenous ABA biosynthesis in Arachis hypogaea L. Export

@article{citeulike:4097789, abstract = {Abstract\ \ ABA has been found to play a significant role in post-embryonic developmental in peanut seedlings. The results from the current study indicate that in the presence of exogenous 10\ μmol\ l−1 ABA, lateral roots (LRs) number decreased and seedling development was delayed. This effect was eliminated by 25\ μmol\ l−1 naproxen, an inhibitor of ABA biosynthesis. The Arabidopsis mutant deficient in ABA biosynthesis, nced3, displays a phenotype with more and longer LRs. We found that ABA decreased root-branching in peanut in a dose-dependent way. ABA-treated seedlings showed higher endogenous ABA levels than the control and naproxen-treated seedlings. RT-PCR results indicated that the expression of AhNCED1, a key gene in the ABA biosynthetic pathway, was significantly up-regulated by exogenous ABA in peanut. The mRNA levels of AhNCED1 began to increase 2\ days after ABA treatment. The results from the current study show that ABA inhibits peanut LR development by increasing endogenous ABA contents.}, author = {Guo, Dongliang and Liang, Jianhua and Li, Ling}, citeulike-article-id = {4097789}, citeulike-linkout-0 = {http://dx.doi.org/10.1007/s10725-009-9365-0}, citeulike-linkout-1 = {http://www.springerlink.com/content/h46631772712v050}, doi = {10.1007/s10725-009-9365-0}, journal = {Plant Growth Regulation}, keywords = {aba, lateral, root}, posted-at = {2009-10-08 11:32:53}, priority = {2}, title = {Abscisic acid (ABA) inhibition of lateral root formation involves endogenous ABA biosynthesis in Arachis hypogaea L.}, url = {http://dx.doi.org/10.1007/s10725-009-9365-0} }

TY - JOUR ID - citeulike:4097789 L3 - citeulike-article-id:4097789 N2 - Abstract  ABA has been found to play a significant role in post-embryonic developmental in peanut seedlings. The results from the current study indicate that in the presence of exogenous 10 μmol l−1 ABA, lateral roots (LRs) number decreased and seedling development was delayed. This effect was eliminated by 25 μmol l−1 naproxen, an inhibitor of ABA biosynthesis. The Arabidopsis mutant deficient in ABA biosynthesis, nced3, displays a phenotype with more and longer LRs. We found that ABA decreased root-branching in peanut in a dose-dependent way. ABA-treated seedlings showed higher endogenous ABA levels than the control and naproxen-treated seedlings. RT-PCR results indicated that the expression of AhNCED1, a key gene in the ABA biosynthetic pathway, was significantly up-regulated by exogenous ABA in peanut. The mRNA levels of AhNCED1 began to increase 2 days after ABA treatment. The results from the current study show that ABA inhibits peanut LR development by increasing endogenous ABA contents. JF - Plant Growth Regulation TI - Abscisic acid (ABA) inhibition of lateral root formation involves endogenous ABA biosynthesis in Arachis hypogaea L. KW - aba KW - lateral KW - root AU - Guo, Dongliang AU - Liang, Jianhua AU - Li, Ling UR - http://dx.doi.org/10.1007/s10725-009-9365-0 ER -