Progress in genetic improvement of crop yield potential has slowed since 1985. Simultaneously, more sustainable management of agricultural ecosystems is needed. A better understanding of natural selection can help solve both problems. We illustrate this point with two specific examples. First, the genetic legacy of crop plants has been refined by millions of years of natural selection, often dr...

Lemnaceae plants, commonly referred to as duckweeds, are small planktonic terrestrial freshwater plants that live in symbiosis with various microbial communities. Azotobacter vinelandii typical free-living nitrogen fixing soil bacteria indirectly benefit by providing compounds. In this study, Lemna minor RDSC 5512 and A. ATCC 12837 = NBRC 13581 were co-cultured under gnotobiotic conditions. The...

in recent decades, enormous use of chromium in different industries as well as water and soil pollution by those industries caused serious concern. toxic impact of chromium on the growth of plants includes changes in the process of germination and root, stem and leaves’ growth. chromium also has harmful impact on the plants’ physiological processes such as photosynthesis. on the other hand, iro...

The aryl hydrocarbon receptor (AhR) is a ligand-activated transcription factor with which halogenated and polycyclic aromatic hydrocarbons such as dioxins and benzo[a]pyrene interact as ligands. Since such compounds cause various toxicological effects, including cancer, through the transformation of AhR, it is important to determine influence of modulating factors. It has been reported that cer...

The effectiveness of 7 fungicides (Amistar 250 SC, Bayleton 5 WP, Bumper 250 EC, Discus 500 WG, Folicur BT 225 EC, Folicur Multi 50 WG, Score 250 EC) and 2 bioproducts (Biochikol 020 PC and Biosept 33 SL) in the control of Puccinia pelargonii-zonalis was tested on pelargonium cv. Pulsar F1 Salmon. Additionally, their influence on plant growth, size of pustules, percentage of germinated spores a...

In Fortsetzung der chemotaxonomischen Untersuchung der Gattung Lecidea Ach. emend. Th. Fr. haben wir Lecidea lilienstroemii D.R. und Lecidea leucophaea (Flk.) Nyl. analysiert. Beide Arten bilden gefelderte dunkle Krusten auf Silikatgestein, wobei letztere eisenund schwermetallhaltiges Substrat bevorzugt; ihre Thalli geben mit den gebräuchlichen lichenologischen Reagenzien keine Farbreaktionen.

BACKGROUND Antimicrobial activity of 18 ethnomedicinal plant extracts were evaluated against nine bacterial strains (Bacillus subtilis, Staphylococcus aureus, Staphylococcus epidermidis, Enterococcus faecalis, Escherichia coli, Klebsiella pneumonia, Pseudomonas aeruginosa, Ervinia sp, Proteus vulgaris) and one fungal strain (Candida albicans). The collected ethnomedicinal plants were used in fo...

A plant growth promoting bacterial endophyte designated as AL2-14B isolated from the leaves of Achyranthes aspera L. was identified as Pseudomonas aeruginosa based on its phenotypic and physiological features, and 16S rRNA gene sequence analysis. AL2-14B had plant growth stimulating attributes including siderophore and indole acetic acid release, inorganic phosphate solubilization, along with n...