AUTHOR=Ricachenevsky Felipe Klein , Vasconcelos Marta Wilton , Shou Huixia , Johnson Alexander Arthur Theodore , Sperotto Raul Antonio TITLE=Editorial: Improving the Nutritional Content and Quality of Crops: Promises, Achievements, and Future Challenges JOURNAL=Frontiers in Plant Science VOLUME=10 YEAR=2019 URL=https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2019.00738 DOI=10.3389/fpls.2019.00738 ISSN=1664-462X