Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8356198 | Plant Science | 2018 | 14 Pages |
Abstract
Here we found that the down-regulation of PvTRX1h increased the number of nodules per plant, but reduced the number of colony-forming units recovered from nodules. Genes coding for enzymes involved in the synthesis of the indole-3-acetic acid were up-regulated, as was the concentration of this hormone. In addition, PvTRX1h down-regulation altered starch accumulation as determined by the number of amyloplasts per nodule. Metabolic fingerprinting by direct liquid introduction-electrospray ionization-mass spectrometry (DLI-ESI-MS) revealed that the root nodules were globally affected by PvTRX1h down-regulation. Therefore, PvTRX1h likely acts through chromatin histone modifications that alter the auxin signaling network to determine bacterial colonization, nodule number, starch accumulation, hormone levels, and cell proliferation.
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Plant Science
Authors
Aarón Barraza, Evelia Lorena Coss-Navarrete, Juan Carlos Vizuet-de-Rueda, Keren MartÃnez-Aguilar, José Luis Hernández-Chávez, José Juan Ordaz-Ortiz, Robert Winkler, Axel Tiessen, Raúl Alvarez-Venegas,