Venom neutralizing activity of crude root extract of Corallocarpus epigaeus was determined by in vivo procedure recommended by WHO. Neutralization assays for antivenom is necessary to replace the in vitro neutralization assay. Albino mice were used to estimate venom neutralizing activity of tuber extract. Corallocarpus epigaues tuber extract preparations exhibit immunomodulatory properties. Thi...

Our objective was to define sensitive morphological indicators that could be used to discriminate between drought sensitive and drought tolerant potato cultivars before final tuber yield is reached. A total of six potato cultivars contrasting for drought tolerance and earliness were subjected to three levels of water supply in two field trials in 1995 and 1996. We examined which parameter among...

To understand the meaning of blending crude drugs in Chinese medicinal prescriptions, the influence of Saussurea root on the pharmacological action of Corydalis tuber was examined. Saussurea root increased the depression of acetylcholine-induced contraction caused by the hot water extract solution of Corydalis tuber in mouse ileum at low dosage, which showed no direct influence on acetylcholine...

The relative magnitude of general combining ability (gca) and specific combining ability (sca) effects in three generations (years), viz. Seedling (SG), first clonal generation (FCG) and second clonal generation (SCG) for tuber yield, tuber number, average tuber weight and tuber dry matter of potato in a line x tester mating design (10 × 4) was studied. There were marked differences in the gca ...

in order to find the most effective concentration of 6-banzilamino purine (bap) and cycocel (ccc) on microtuber production of two potato cultivars under tissue culture conditions, a factorial experiment was carried out with randomized compelete design with 4 replications. four levels of bap (0, 5, 10 and 15 mg l-1) and four levels of ccc (0, 250, 500 and 1000 mg l-1) were applied on two potato ...

effects of different paclobutrazol concentrations (0, 250, 350 and 450 mgl-1) and plantlet density (80, 100 and 120 plantlet/m2) on minituber production per plantlet in potato cultivar ‘sante’ were investigated in a factorial experiment based upon a randomized complete block design of 4 replications. paclobutrazol (cultar with 250 g/l of active ingredient) was used as foliar application at earl...

Multiple disease resistance is an aim of many plant breeding programs. Previously, novel somatic cell selection was used to generate potato variants of "Russet Burbank" with resistance to common scab caused by infection with an actinomycete pathogen. Coexpression of resistance to powdery scab caused by a protozoan pathogen was subsequently shown. This study sought to define whether this resista...

The lipid biopolymer suberin plays a major role as a barrier both at plant-environment interfaces and in internal tissues, restricting water and nutrient transport. In potato (Solanum tuberosum), tuber integrity is dependent on suberized periderm. Using microarray analyses, we identified ABCG1, encoding an ABC transporter, as a gene responsive to the pathogen-associated molecular pattern Pep-13...

Although cooked potato tuber texture is an important trait that influences consumer preference, a detailed understanding of tuber textural properties at the molecular level is lacking. Previous work has identified tuber pectin methyl esterase activity (PME) as a potential factor impacting on textural properties. In this study, tuber PME isoform and gene expression profiles have been determined ...

Polyphenol oxidase (PPO) activity in potato (Solanum tuberosum) plants was high in stolons, tubers, roots, and flowers but low in leaves and stems. PPO activity per tuber continued to increase throughout tuber development but was highest on a fresh weight basis in developing tubers. PPO activity was greatest at the tuber exterior, including the skin and cortex tissue 1 to 2 mm beneath the skin....