Increased solar radiation on the Earth’s surface is expected due to global change. Mangrove macroalgae can be negatively affected by increased radiation, since some species, such as Bostrychia spp. have been characterized typical “shade” plants. Thus, we investigated effects of increasing photon flux densities (PFDs: 170, 267, 443, 638, and 1155 µmol photons m –2 s –1 ) physiological performanc...

Powdery mildew is among the most common diseases of both hemp- and marijuana-type cultivated Cannabis sativa . Despite its prevalence, no documented studies have characterized sources natural genetic resistance in this pathosystem. Here we provide evidence for first ( R ) gene C. , represented by a single dominant locus that confers complete to an isolate powdery pathogen Golovinomyces ambrosia...

Powdery mildew is a constant threat to cucumber production in soilless systems requiring the intensive use of chemical fungicides limit yield losses. However, toxicity risks for growers and food safety issues linked fungicide residues represent major concern crops with frequent extended harvest period, like cucumber, create an urgent need eco-friendly alternatives. The objective this study was ...

All rights reserved iii Acknowledgements The moral is, it hardly need be shown, All those who try to go it sole alone, Too proud to be beholden for relief, Are absolutely sure to come to grief. |Robert Frost With high spirits I undertook to thank the many people who have helped me during my graduate tenure at Caltech. I have had the opportunity and pleasure of meeting many very talented people ...