Changes in abundance and infectivity of powdery mildew conidia from cucumber plants treated systemically with lithium chloride.

Abood, J. K. and Ayres, P. G. and Losel, D. M. (1992) Changes in abundance and infectivity of powdery mildew conidia from cucumber plants treated systemically with lithium chloride. Plant Pathology, 41 (3). pp. 255-261. ISSN 1365-3059

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Abstract

Systemic treatment of cucumber plants with lithium chloride reduced the numbers of conidia produced by colonies of powdery mildew, Sphaerotheca fuliginea, growing on leaves, and lowered the infectivity of conidia produced from those leaves when they were applied to leaves of untreated plants. Production of conidiophores was lower in both lithium-treated and calcium-deprived plants, and lithium slightly decreased the calcium content of leaves. When the lithium-containing growth medium was supplemented with phosphate, conidiophore production was still markedly reduced, although leaves had normal levels of calcium. Fungal development was not correlated with either the calcium or phosphorus content of leaves. It is concluded that, although severe calcium deficiency can inhibit fungal development, the inhibitory effects of lithium are not mediated through alterations in calcium or phosphorus uptake by host tissues.

Item Type:
Journal Article
Journal or Publication Title:
Plant Pathology
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1100/1110
Subjects:
?? plant sciencegeneticshorticultureagronomy and crop sciencege environmental sciences ??
ID Code:
22725
Deposited By:
Deposited On:
14 Jan 2009 15:09
Refereed?:
No
Published?:
Published
Last Modified:
15 Jul 2024 10:12