Ida Ruberti's scientific contributions

... Additionally, HD-Zip family members have been reported to be involved in phytohormone responses and regulation of secondary metabolite biosynthesis. For example, our previous study revealed that PpHB22 is responsive to abscisic acid (ABA) and activates PpDAM1 to regulate the bud dormancy transition in 'Suli' pear , whereas HAT3 and ATHB4 regulate auxin polar transport to control its distribution in Arabidopsis (Carabelli et al., 2021). SlHB15A suppresses jasmonic acid-isoleucine (JA-Ile) levels in Solanum lycopersicum, which in turn regulates abscission . ...

... Notably, OsHOX14 is a member of the homeodomain-leucine zipper (HD-Zip) transcription factor family which members are known to play in different species important roles in various aspects of plant development, morphogenesis and in responses to biotic and abiotic stresses (Perotti et al., 2017;Sessa et al., 2018). The specific expression profile obtained through in-situ hybridization, confirmed the expression of OsHOX14 in reproductive meristems as reported by Harrop et al. (2016) and Shao et al. (2018). ...

... At later stages of their development, plants also exhibit differential responses to light signals from natural environment as light filter through vegetation with a reduction of the red (R; 600-700 nm, peak at 660 nm) to far red (FR; 700-800 nm, peak at 730 nm) ratio due to selective absorption of R and blue light, but not FR, by the photosynthesis pigments (Possart et al., 2014). Species intolerant to shade display dramatic shade avoidance responses (SARs), including stem elongation, suppressed branching, and accelerated transition to flowering, so-called SAR (Ruberti et al., 2012;Sessa et al., 2018). Besides the changes of growth patterns, the accumulation of anthocyanin in plant vegetative tissues and flowers also depends on light conditions. ...

... In the case of the subfamily HD-ZIP II, the members are renowned for their functions in shade avoidance, leaf polarity, and abiotic stresses, including light, drought and salt stimuli [1,2,4]. For instance, the genes AtHB2 and AtHB4 act together to control early exit from proliferation during leaf development under canopy shade [4,9]. HD-ZIP III proteins have been reported to mainly function as a developmental regulator of apical meristem, vascular system formation, and normal organ polarity [1,2,4,5]. ...

... Based on the magnitude of expression changes and roles established in Arabidopsis, we studied the alfalfa orthologs of Arabidopsis ATHB2 and PIF3 as candidates promoting the SAS (Schena et al., 1993;Ni et al., 1998). ATHB2 is one of the most prominent characterized players in the Arabidopsis SAS, so its role could be conserved in alfalfa (Carabelli et al., 1993;Roig-Villanova et al., 2006;Iannacone et al., 2008;Wang et al., 2016). In the case of PIF3, one of its homologs in soybean, gmPIF3a, was found to be upregulated in weed-shaded plants (Horvath et al., 2015). ...