English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Nitrogenous nutrition influences the availability of other plant resources and, consequently, affects plant defense responses. Both a shortage and excess of N impact plants ́ ability to accumulate and survive metals/metalloids, but available data are still fragmented and often contradictory. A series of 8 different NH4NO3 concentrations, ranging from zero to excessive nitrogen (35 mM N), was applied in growth media to hydroponically grown wheat (Triticum aestivum). The plants were grown at a sublethal concentration of arsenic (5 mM As3+) for 10 days and foliar accumulation of As, N and P was determined. In addition, induction of defense-related chitinase and β-1,3-glucanase enzyme isoforms was quantified upon the separation of plant protein extracts in polyacrylamide gels. As3+ interfered with N and P accumulation in shoots and strongly activated several enzyme isoforms. These responses varied with the N supply and indicated a low rate of As accumulation at low N concentrations. On the other hand, limited As transfer to shoots was a clear benefit at high N concentrations. Nevertheless, both extreme N concentrations restricted the growth. Several enzyme isoforms of both chitinases and β-1,3-glucanases exerted sensitivity to As3+, N supply or both. Their individual responses, however, contradict the generally accepted view on positive correlation between these defense molecules and N nutrition. Impacts of interplay between As3+ toxicity and nutritional *e-mail: bardacova.monika@gmail.com DOI: 10.15244/pjoes/127912 ONLINE PUBLICATION DATE: 2021-02-04 Maglovski M., et al. 2214

Nitrogenous Nutrition Affects Uptake of Arsenic and Defense Enzyme Responses in Wheat