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TEMPERATURE OF POTATO AND TOMATO LEAVES.

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Oxylipin profiling in pathogen-infected potato leaves.

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Plants respond to pathogen attack with a multicomponent defense response. Synthesis of oxylipins via the lipoxygenase (LOX) pathway appears to be an important factor for establishment of resistance in a number of pathosystems. In potato cells, pathogen-derived elicitors preferentially stimulate the

Cuticular waxes from potato (Solanum tuberosum) leaves.

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The qualitative and quantitative compositions of leaf cuticular waxes from potato (Solanum tuberosum) varieties were studied. The principal components of the waxes were very long chain n-alkanes, 2-methylalkanes and 3-methylalkanes (3.1-4.6 microg cm(-2)), primary alcohols (0.3-0.7 microg cm(-2)),

[Fatty acid composition of glycerolipids from potato leaves].

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A method for rapid isolation of glyco- and phospholipids from potato leaves by a two-fold separation in a thin layer of silica gel is described. Using gas-liquid chromatography, the fatty acid compositions of monogalactosyldiglyceride, digalactosyldiglyceride, sulfolipid, phosphatidyl choline,

Antioxidant content and activity in leaves and petioles of six sweet potato (Ipomoea batatas L.) and antioxidant properties of blanched leaves.

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This study was conducted to compare antioxidant contents and antioxidative activities in the leaves and petioles of six sweet potato varieties, namely Danjami, Hayanmi, Hogammi, Jinyulmi, Poongwonmi, and Yeonjami. Total amount of phenolic acids was highest

[Peculiarities of carbohydrate metabolism in potato and sugar beet leaves and their role in coordination of function of the leave apparatus].

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Stress Induction of Mitochondrial Formate Dehydrogenase in Potato Leaves

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In higher plants formate dehydrogenase (FDH, EC 1.2.1.2.) is a mitochondrial, NAD-dependent enzyme. We previously reported that in potato (Solanum tuberosum L.) FDH expression is high in tubers but low in green leaves. Here we show that in isolated tuber mitochondria FDH is involved in

Ascorbate metabolism in potato leaves supplied with exogenous ascorbate.

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Photosynthesis and leaf ascorbate were measured in potato (Solanum tuberosum L.) plants grown in low light and then transferred to high light. Total foliar ascorbate content in low light-grown plants was 4.72+/-0.42 micromol mg(-1)chl. Over 80% of the ascorbate pool was found in the reduced form

Vacuolar localization of wound-induced carboxypeptidase inhibitor in potato leaves.

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The wound-induced carboxypeptidase inhibitor in potato leaves was shown to be localized in the central vacuoles of the cells. The inhibitor was quantified by immunological assays (ELISA) in protoplasts and vacuoles isolated from upper unwounded leaves of 5- to 6-week old potato plants that had been

Oospore Production of Phytophthora infestans in Potato and Tomato Leaves.

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ABSTRACT Fungal, host, and environmental factors affecting sexual reproduction of Phytophthora infestans in planta were studied. Intact and detached leaves were coinoculated with sporangia of various combinations of A(1) and A(2) mating-type isolates; leaves were incubated under various conditions,

Transcriptome analysis of heat stress response genes in potato leaves

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Heat stress has a severe impact on potato growth and tuberization process, always resulting in the decrease of tuber yield and quality. Therefore, it is of great significance for potato breeding to illuminate the mechanism of heat stress on potato and explore heat resistant genes. In this study, two

Purification and characterization of an aspartic protease from potato leaves.

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A protease was isolated from potato (Solanum tuberosum L. cv. Pampeana) leaves 48 h after detaching, when aspartic protease (AP) activity is markedly increased. Purification was performed by ammonium sulfate precipitation, ion exchange chromatography and affinity chromatography. A size of 40 kDa was

Reflectance and transmittance of light by leaves.

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Spectrophotometric transmittance and reflectance curves were recorded for wavelengths from 0.45 (in some cases 0.34) to 2.7 micrometers for faces and backs of leaves and for stacked leaves of several plant species. Measurements were made at different angles of illumination. Leaf spectrophotometric

Identification and quantification of anthocyanins in purple-fleshed sweet potato leaves.

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As phytochemical-enriched edible greens, sweet potato (Ipomoea batatas L.) leaves have become popular. However, the profile and content of phytochemicals in sweet potato leaves are mostly unknown. We previously bred a purple-fleshed sweet potato P40 that demonstrated cancer prevention due to

Comparison of functional components in various sweet potato leaves and stalks.

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The functional components of leaves and stalks from 14 sweet potato cultivars were investigated by determining lutein, β-carotene, chlorophyll, tannin and phenolic acid contents. It was found that the contents of the functional components in different cultivars differ significantly (p<0.05). Lutein,

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