Rogério Falleiros Carvalho

• XVIII Brazilian Congress of Plant Physiology, AR.BR

• Abstract

  Although it has long been known that light controls seed germination of a wide range of species, the role of the blue light (BL) wavelengths still needs much to be explored. Many works show that BL induces or inhibits the seed germination, but through different irradiances. Since BL acts by means of photoreceptors, different responses during seed germination raises questions about how th…

  How does blue light modulate seed germination in tomato?, AP.R
• 16th International Congress on Photobiology, AR.EXT

• Abstract

  Phytochromes are photoreceptors present mainly in vegetables to perceive and signal various changes that have occurred in the environment. In addition to modulating growth and development (a phenomenon known as photomorphogenesis), phytochromes are also part of abiotic stress response signaling. Evidence shows that, when compared to the wild genotype (WT), mutant tomato seedlings that hav…

  Tomato (Solanum lycopersicum L.) phytochrome-B1 on the physiology of production during water deficit, BP.MS

• Abstract

  Plant growth and development is strongly modulated by light, a phenomenon known as photomorphogenesis. For this, an intricate photoreceptor system acts on the perception and signaling of these responses, with recent highlights for events related to abiotic stresses. Although the evidence is clear, the interaction of the blue light, through the signaling of the cryptochromes, with the mech…

  Are the cryptochromes part of the stress response signaling induced by water deficit in tomato?, BP.DR

• Abstract

  Evidence shows the mobility of gibberellins (GAs) from the roots to the shoots during development, indicating the involvement of this hormone in the responses of shoots to stress conditions, in particular, the most worrying of abiotic stresses drought. Thus, the objective of this study is to evaluate the importance of roots as a source of GA signaling of water stress to the shoot. For thi…

  Using of a mutant in gibberellin in grafting of the tomato to study signaling this hormone between roots and shoots during water deficit, BP.DR

(Only some records are available in English at this moment)

• Abstract

  From germination to flowering, it has been shown that phytohormones are involved in light signaling. For example, it was shown that phytochromes, which absorb red and far-red light, signal via jasmonates (JAs) in the control of wounding responses, one of the most worrisome issues in many crops. Thus, considering the wide range of the light spectrum, it is not unreasonable to hypothesize t…

  Does wounding trigger shoot-to-root communication through interaction between cryptochrome 1a and jasmonates in tomato?, BE.PQ