Search results for "AGEs"

Identification, characterization and analysis of expression of genes encoding arylalkylamine N-acetyltransferases in the pea aphidAcyrthosiphon pisum

2013

Most organisms exhibit some kind of rhythmicity in their behaviour and/or physiology as an adaptation to the cyclical movements of the Earth. In addition to circadian rhythms, many organisms have an annual rhythmicity in certain activities, such as reproduction, migration or induction of diapause. Current knowledge of the molecular basis controlling seasonal rhythmicity, especially in insects, is scarce. One element that seems to play an essential role in the maintenance of both circadian and seasonal rhythms in vertebrates is the hormone melatonin. In vertebrates, the limiting enzyme in its synthesis is the arylalkylamine N-acetyltransferase (AANAT). Melatonin is also present in insects bu…

The effect of light quality on anther culture of Citrus clementina Hort. ex Tan.

2005

This pre lim i nary re search re ports re sults on the in flu ence of light qual ity on an ther cul ture of Cit rus clementina Hort. ex Tan., cultivar Nules. Af ter one month of cul ti va tion in dark - ness, four light quali ties were tested: White, Red, Far-Red and Blue. Con tin u ous Dark ness and White light un der photoperiod of 16 hrs were used as a con trol con di tions. Ga metic embryoids and embryogenic cal lus were ob tained only un der photoperiodic con di tions of White light, sug gest ing that the al - ter na tion of light and dark can be used for the pro cess of ga - metic embryogenesis in Cit rus.

Deregulated Copper Transport Affects Arabidopsis Development Especially in the Absence of Environmental Cycles    

2010

Abstract Copper is an essential cofactor for key processes in plants, but it exerts harmful effects when in excess. Previous work has shown that the Arabidopsis (Arabidopsis thaliana) COPT1 high-affinity copper transport protein participates in copper uptake through plant root tips. Here, we show that COPT1 protein localizes to the plasma membrane of Arabidopsis cells and the phenotypic effects of transgenic plants overexpressing either COPT1 or COPT3, the latter being another high-affinity copper transport protein family member. Both transgenic lines exhibit increased endogenous copper levels and are sensitive to the copper in the growth medium. Additional phenotypes include decreased hypo…

Somatic Embryogenesis and Plant Regeneration from Hypocotyl Cultures of Digitalis obscura L.

1986

Summary Hypocotyl sections from 20-day-old seedlings of Digitalis obscura L. were used to examine the effect of IAA on somatic embryogenesis. Although embryogenesis was obtained with all IAA concentrations (0.1, 0.5 and 1 ppm) and under both illumination conditions tested (16 h photoperiod and darkness), incubation in photoperiod increased yield of embryos and shortened the embryo induction time. Optimum results were obtained with 1 ppm IAA. About 30 % of the embryos obtained developed into complete plantlets when transferred to basal medium without growth regulators.

Use of Biostimulants for Organic Apple Production: Effects on Tree Growth, Yield, and Fruit Quality at Harvest and During Storage

2018

The experiment was conducted during two consecutive seasons (years 2016 and 2017) in an organic apple orchard of the cultivar Jonathan. Several biostimulants were tested (10 in total), including humic acids, macro and micro seaweed extracts, alfalfa protein hydrolysate, amino acids alone or in combination with zinc, B-group vitamins, chitosan and a commercial product containing silicon. Treatments were performed at weekly intervals, starting from the end of May until mid-August. The macroseaweed extract was effective in stimulate tree growth potential in both years, as shown by a significantly larger leaf area (+20% as compared to control) and by an higher chlorophyll content and leaf photo…

Baltic Journal of English Language, Literature and Culture, Vol.10

2020

PIG CARCASS CLASSIFICATION IN ROMANIA: A DISSECTION TRIAL FOR THE APPROVAL OF THE “FAT-O-MEAT’ER” AND OF THE “OPTIGRADE-PRO”EQUIPMENT

2014

The objective of this study was to obtain new regression formulas for optical equipment Fat-O-Meat’er and OptiGrade-PRO in pig carcass classification in Romania. The estimation of lean mean content in pig carcasses by means of SEUROP system and following fair payment based on the weight and composition of the carcass pigs in the main objective of classification. Dissection of four main cuts (shoulder, loin, ham, belly) of pig carcasses (n = 145) were performed. The measurement of backfat and muscle depths using probes were taken from the carcasses within 45 min. after slaughter of pigs. Lean meat content estimated using different methods and determined from dissections was equal (56,3 % ). …

The management of crop-livestock systems at a territory level: the example of grain legume crops and of monogastric livestock in Burgundy, France

2012

Although cereals and oil seed crops are very developed in Burgundy, the area of grain legumes cultivation is small. Concerning monogastric livestock, the region is characterised by a medium size poultry production focussed on markets under quality and origin signs (SIQO) and a relatively small pig production. Although a tendency of co-location of these productions can be observed (at territory and farm scales) and some animals consume locally-produced proteins, there is no strong functional link between these crops and animal activities. This situation is confirmed by the fact that a significant proportion of produced grain legumes are exported by Burgundy, while large quantities of soybean…

Krūmiņa-Koņkova, Solveiga; Ruiz-Pereira, Sebastian; Peterson, Voltair Alvarado; Mazlovskis, Arnis; Leitlande, Gita; Mieriņa, Inta; Stašulāne, Anita;O…

2022

Reliģiski-filozofiski raksti XXXII ir par telpas pieredzēšanu: par to, kā mēs izdzīvojam sevi vietā, kurā esam, un kā mēs izjūtam sevi šajā savā vietā vai vietā, kura tā arī nav kļuvusi vai nekad nebūtu varējusi kļūt par mūsu dzīves pasauli. Kā veidojas šī savas vietas izjūta? Vai vieta, kurā mēs dzīvojam, vienmēr ir mājas? Vai šo vietas izjūtu veido mūsu individuālā pieredze vai varbūt tā ir vairāk atkarīga no kādām kolektīvām prasībām? Varbūt to nosaka mūsu piederība tradīcijām, kurās esam audzināti un kuras arī saucam par savām, bet varbūt tieši mūsu vietas pieredze ir tā, kas nosaka to, kādai tradīcijai mēs izvēlamies piederēt vai kuras veidošanā piedalāmies? Par tradīcijas iesakņošanos…

Effect of fertilization on growth of lingonberry (Vaccinium vitis-idaea L.)

2021

Received: January 29th, 2021 ; Accepted: April 10th, 2021 ; Published: April 20th, 2021 ; Correspondence: andis.karlsons@lu.lv Today, most of the global berry crop of Vaccinium vitis-idaea L. is obtained from wild berries. In recent years, however, their cultivation has become slightly more widespread, especially as demand has increased. As the commercial production of lingonberries is a completely new fruit-growing sector in Latvia, research on mineral nutrition, development of the crop production system and proper fertilizer management is critically important. The objective of this study was to elucidate the effect of different fertilizer rates on the nutrient status of lingonberry plant …