Results 41 to 50 of about 1,545 (189)
In Limonium sinuatum Mill, plants with severe symptoms of aster yellows infection phytoplasmas were present not only in the phloem but also in some cortex parenchymas cells.
Anna Rudzińska-Langwald +1 more
doaj +1 more source
Detection and Identification of Aster Yellows Phytoplasma Associated with Lipstick Yellow Frond Disease in Malaysia [PDF]
AbstractYellowing symptoms similar to coconut yellow decline phytoplasma disease were observed on lipstick palms (Cyrtostachys renda) in Selangor state, Malaysia. Typical symptoms were yellowing, light green fronds, gradual collapse of older fronds and decline in growth.
Naderali, Neda +3 more
openaire +1 more source
Filamentous sieve element proteins are able to limit phloem mass flow, but not phytoplasma spread [PDF]
In Fabaceae, dispersion of forisomes\u2014highly ordered aggregates of sieve element proteins\u2014in response to phytoplasma infection was proposed to limit phloem mass flow and, hence, prevent pathogen spread.
Buoso, Sara +8 more
core +1 more source
Pathogenicity of Aster Yellows Phytoplasma and Spiroplasma citri on Periwinkle [PDF]
Using Murashige and Skoog (MS) as a basal medium, the effects of varying levels and combinations of plant growth regulators required for shoot tip and root proliferation in healthy and aster yellows phytoplasma (AYP)- and Spiroplasma citri-infected periwinkle (Catharanthus roseus) shoots were studied. Number of shoots and fresh and dry mass of healthy
openaire +2 more sources
Changes in anatomy and cytology of conducting tissues of Limonium sinuatum Mill. plants affected by aster yellows phytoplasma were investigated. In the phloem tissues of affected plants stem necrosis takes place.
Anna Rudzińska-Langwald +1 more
doaj +1 more source
First Report of Aster Yellows Phytoplasma in Grapevines in South Africa
For many years phytoplasma diseases have caused serious losses in most of the major grape-growing regions of the world, except South Africa, where a mixed phytoplasma infection was first reported in 2006 (1). During the early growing season of 2006, symptoms consistent with phytoplasma disease were observed in vineyards in the Olifants River Valley ...
M, Engelbrecht, J, Joubert, J T, Burger
openaire +2 more sources
Presence of 16SrIV phytoplasmas of subgroups A,D and E in planthopper Haplaxius crudus Van Duzee insects in Yucatan, Mexico [PDF]
The present study was carried out to determine if group 16SrIV phytoplasmas, causing lethal yellowing (LY) disease, are present in Haplaxius crudus Van Duzee (Hemiptera: Cixiidae) insects associated with palms in Yucatán, Mexico.
Dollet, Michel +8 more
core +1 more source
New Disease Reports, Volume 48, Issue 1, July–September 2023.
O. Viczián +3 more
wiley +1 more source
The influence of antibiotics on the appearance of magnolia stunting symptoms
Treatment of diseased magnolia plants with oxytetracycline, baytril and tylan did not reduce the number of symptomatic plants. However, the sprays with antibiotics promoted the shoot growth, development of symptomless leaves and flower buds.
Maria Kamińska, Hanna Śliwa
doaj +1 more source
Opium poppy (Papaver somniferum L.) is described in the literature as a natural host of turnip mosaic virus, bean yellow mosaic virus, beet yellows virus and beet mosaic virus, and experimental host of plum pox virus. P.
Darina Kubelková, Josef Špak
doaj +1 more source

