Authors:M. M. Heikal, A. M. Ismail, and M. M. Azooz
Salinity adversely affected the photosynthetic pigment biosynthesis and carbohydrate fractions in two broad bean lines, 67 and 13. The accumulation of proline and other amino acids was also altered. The interactive effects of salinity and exogenous treatments with vitamin pyridoxine (B6) on these parameters were also tested. These treatments included soaking the seeds or spraying the shoots with vitamin solution. The vitamin treatments generally counteracted the adverse effects of salinity. The importance of these treatments to the salinity tolerance of broad bean lines is discussed.
Authors:R. Liu, Q.N. Zhang, J. Lu, C.H. Zhang, L. Zhang, and Y. Wu
Salt stress is one of the major abiotic stress which severely limits plant growth and reduces crop productivity across the world. In the present study, the effects of exogenous pyridoxal-5-phosphate (vitamin B6, VB6) on seedling growth and development of wheat under salt stress were investigated. The results showed that exogenous application of pyridoxal-5-phosphate (VB6) significantly increased the RWC, biomass, the concentration of photosynthetic pigments, proline, the activities of superoxide dismutase (SOD), catalase (CAT), peroxidase (POD), together with decreasing the content of Malondiadehyde (MDA) and hydrogen peroxide (H2O2) in wheat leaves under salt stress. Meanwhile, the transcript level of P5CR, P5CS, SOD, TaSOS1 and TaSOS4 were also up-regulated after treatment with pyridoxal-5-phosphate. VB6 acts as a signal in regulating the activities of plant antioxidant enzymes and SOS pathway to improve resistance to salt stress. The current study results may give an insight into the regulatory roles of VB6 in improving salt stress and VB6 could be an easily and effective method to improve salt-stress tolerance to wheat in the field condition. It is urgency to understand the molecular mechanism of VB6 to enhance the salt tolerance of wheat in the next work.
Garlic is widely used as food flavouring, and China is the world's largest garlic producer and exporter. To develop a convenient technique for evaluation of garlic cultivars would be worthwhile, and it would have wide application in such a huge market. In this research, 3D front-face fluorescence data of 8 garlic cultivars were recorded, and independent component analysis was used to decompose the overall fluorescence spectra into six independent components. The first, second, and fourth independent components showed a big difference among the cultivars, and the chemical fluorophores behind these three components were specified as protein, vitamin B6, and ATP, respectively, as fluorescent markers for evaluation. The result showed that all 8 cultivars cluster separately. The cultivar “YNQJ” have the highest quality in terms of protein and vitamin B6, “NXYC” and “SDHB” have the highest content of ATP, while “SXXA” is the poorest in terms of protein and ATP, and “HNJZ” has the lowest content of vitamin B6. Therefore, rapid evaluation of garlic cultivars can be accomplished successfully by using only the proportion values of three properly selected fluorescent markers.
Authors:Melinda Vanya, Károly Szili, Szilvia Zámolyi, Hajnalka Magyar, Gábor Kőrösi, Árpád Benkő, Anna Hornyák, Zsolt Hegedűs, and Lajos György
A szerzők egy 46 éves fogva tartott férfi beteg esetét mutatják be, akinél
Coxiella burnetii által okozott atípusos pneumoniát állapítottak meg. A
mellkasröntgen-felvétel interstitialis pneumoniát mutatott ki. Western-blot és
ELISA-tesztek Coxiella burnetii-antitestre pozitívak voltak. A beteg klinikai
állapota 10 napos doxycyclin- és amoxicillin-, valamint
B6-vitamin-kezelést követően javult. A szerzők kiemelik, hogy a Q-láz
diagnózisának megállapítása specifikus antitestvizsgálaton alapul. Atípusos
pneumonia esetén a hasonló tüneteket okozó egyéb baktérium, illetve
vírusantitest-vizsgálatnak is fontos szerepe van. Orv. Hetil., 2015,
Authors:D. Mullerova, L. Muller, D. Schneidrova, and Z. Zloch
, niacin, vitaminB6, folate, vitamin B12, pantothenic acid, biotin, and cholin. National Academy Press, Washington.
Milla, P. (2001): Paediatric nutrition requirements, -in: PAYNE-JAMES, J., GRIMBLE, G. & SILK, D
Authors:L. Biró, M. Szeitz-Szabó, Gy. Biró, and J. Sali
IOM ( Institute of Medicine ) (1998): Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, VitaminB6 , Folate, Vitamin B 12 , Pantothenic Acid, Biotin, and Choline . Washington, DC, National Academy Press, pp. 423