Gardner, D. E. . Unpublished: Apparent virescence of sandalwood at Haleakala NP. Unpublished
ABSTRACT
Virescence is an abnormal condition associated with some virus diseases in which flower parts are green and assume the appearance of leaves. I observed this type of symptom on two or three sandalwood trees in Haleakala NP. I obtained fixation fluid from the virologist in the UH plant pathology department and requested the assistance of resource managers at HALE collecting material to be used in observation. Unfortunately, the samples were not collected according to the rather exacting instructions given (no offense intended) and the material was of no use. In reviewing this situation, I should have traveled back to HALE done the collecting myself. No follow-up attempts were made to examine the tissue since the incidence of virescence appeared to be restricted to only a few trees. I thought the observation was significant, however, in view of the well documented "sandalwood spike disease" in India. This disease is associated with a phytoplasma (a submicroscopic bacterium), formerly termed MLO (mycoplasma-like organism). Many "yellows"-type plant diseases previously thought to be caused by viruses of the aster yellows virus group have recently been found to be associated with phytoplasmas instead. This, together with a report from India including Dodonaea viscosa as a host of "sandalwood spike disease" raised questions in my mind as to whether the Dodonaea yellows disease that I had discovered and characterized in Hawaii was in fact sandalwood spike disease.
FULL TEXT
Full text not available for this publication.
HOSTS
No host information available for this publication.
PATHOGENS
No pathogen information available for this publication.
