The effect of acclimation to drought in seedlings of Mediterranean evergreen sclerophyll Laurus nobilis L. (laurel) was studied in semiarid field conditions. The phytohormones abscisic acid (ABA), gibberellic acid (GA 3), zeatin (Z) and indole-3-acetic acid (IAA) contents, plant water potential, photochemical efficiency, and morphological characters were determined. Seedlings were acclimated to...

OBJECTIVES The aim of this study was to determine the antimycobacterial potential of laurel oil, its fractions and its two sesquiterpene lactones against several mycobacterial strains and clinical isolates, and to establish the possibility of occurrence of some synergistic effects between those lactones using a modification of the fluorometric Alamar Blue microassay (FMABA). METHODS The in vi...

Essential oils are natural antimicrobials that have the potential to provide a safer alternative to synthetic antimicrobials currently used in the food industry. Therefore, the aim of this study was to evaluate the antimicrobial and antioxidant activities of essential oils from white wormwood, rose-scented geranium and bay laurel against Salmonella typhimurium and Escherichia coli O157:H7 on fr...

Laurel wilt (Lw) is a fatal disease. It is a vascular pathogen and is considered a major threat to the avocado industry in Florida. Many of the symptoms of Lw resemble those that are caused by other diseases or stress factors. In this study, the best wavelengths with which to discriminate plants affected by Lw from stress factors were determined and classified. Visible-near infrared (400–950 nm...

Phytophthora ramorum, an invasive pathogen and the causal agent of Sudden Oak Death, has become established in mixed-evergreen and redwood forests in coastal northern California. While oak and tanoak mortality is the most visible indication of P. ramorum's presence, epidemics are largely driven by the presence of bay laurel (Umbellularia californica), a reservoir host that supports both prolifi...

Identifying the factors that influence the spread of exotic species is essential for evaluating the present and future extent of plant invasions and for the development of eradication programs. We randomly established a network of 250 plots on an exotic Pinus radiata D. Don plantation on Tenerife Island in order to determine if roads and urban centers are favouring the spread of exotic plant sp...

1Center for Planetary Sciences, Northwestern University, 1850 Campus Drive, Evanston, Illinois 60208, USA 2Center for Radiophysics and Space Research, Cornell University, Ithaca, New York 14850, USA 3Department of Astronomy, Cornell University, Ithaca, New York 14850, USA 4The John Hopkins University Applied Physics Laboratory, 11100 John Hopkins Road, Laurel, Maryland 20723, USA 5Hawaii Instit...

D.T. Blewett, J.J. Gillis-Davis, J.J. Hagerty, D.J. Lawrence, P.G. Lucey, C.A. Peterson, G.A. Smith, P.D. Spudis, and G.J. Taylor Hawaii Institute of Geophysics and Planetology, University of Hawaii, Honolulu, HI 96822, Intergraph Corporation, P.O. Box 75330, Kapolei, HI 96707, NovaSol, 733 Bishop Street, Honolulu, HI 96813, Los Alamos National Laboratory, MSD466, Los Alamos, NM 87545, Johns Ho...

REAL-TIME ESTIMATES OF WIND DIRECTIONS. T.N. Titus, T.I. Michaels, A. Colaprete, H.H. Kieffer, Y. Langevin, S.L. Murchie, M. Vincendon, and the CRISM Science Team, USGS, 2255 N. Gemini Dr., Flagstaff, AZ 86001 USA ([email protected]), Southwest Research Institute, Boulder, CO, NASA Ames Research Center, Moffett Field, CA, Celestrial Reasonings, Genoa, NV., Institute d’Astrophysique Spatial (IAS),...