Results 41 to 50 of about 1,219,048 (94)

Endophytic Agrobacterium in crown gall-resistant and -susceptible Vitis genotypes [PDF]

open access: yes, 2015
Several methods were used to study endophytic colonization of Vitis genotypes by Agrobacterium vitis (AV). AV was seldom detected except at inoculated sites, indicating little systemic movement of the bacterium under the conditions of these experiments ...
Stover, E. W.   +2 more
core   +1 more source

Unexpected Evolutionary Divergence of Tachykinin‐Positive Neurons Innervating the Central Complex in Hexapods

open access: yesJournal of Comparative Neurology, Volume 534, Issue 3, March 2026.
The central complex is a group of midline‐spanning neuropils in the brain of insects with a key role in goal‐directed orientation and navigation. Immunolabeling in 25 species, ranging from bristletails to flies, shows that neurons containing peptides of the tachykinin family of neuropeptides are present in most species studied.
Uwe Homberg   +8 more
wiley   +1 more source

Orthoquinone, Cyclic, and Acyclic α‐Diketone Natural Products: From Food Applications to Pharmacotherapy

open access: yesPhytochemicals in Food and Medicine, Volume 1, Issue 1, March 2026.
The orthoquinone metabolites from plants have antimicrobial, antioxidant, antiviral, cytotoxic, and anti‐inflammatory effects. ABSTRACT The structural diversity of natural products is vast and fascinating, and they have been recognized as an enormously diverse source of new lead compounds.
Hidayat Hussain   +5 more
wiley   +1 more source

Resistance of Grape Rootstocks to Crown Gall

open access: yes
Crown gall can develop on grapevines wounded by freezing temperatures, mechanical damage or grafting. Increased demand for grape varieties grafted to phylloxera resistant rootstocks has led to increased incidence of crown gall at graft unions.
Ferguson, Kathleen   +4 more
core   +3 more sources

The McKinleys of Punch: Politics and the Press in Melbourne, 1870s to 1920s

open access: yesAustralian Journal of Politics &History, Volume 72, Issue 1, Page 35-68, March 2026.
This article re‐examines the Melbourne Punch (1855–1925; known simply as Punch from 1900) as a political weapon in the cut‐and‐thrust of Victorian, local, and national politics, in the hands of its longest‐serving, but least‐known proprietor, Alexander McKinley (1848–1927).
Richard Scully
wiley   +1 more source

The role of polyamines in crown gall tumor formation

open access: yes, 1983
The purposes of this study were to determine the effect of the exogenous polyamines, spermidine and spermidine, on growth of crown gall tumors, to assay levels of spermidine and spermine in normal and crown gall tumor tissue and to determine the effects ...
Kulpa, Joan M.
core  

Patogenecidad de agrobacterium tumefaciens en algunas especies de plantas de flóres de exportación

open access: yesAgronomía Colombiana, 1984
Tres aislamientos de tumefaelens Agrobaeterlum de rosa de las plantas afectadas con agalla de la corona en la Sabana de Bogotá se han caracterizado e identificado por pruebas de laboratorio y mediante la inoculación en plantas de tomate, zanahoria y ...
Ovalle Germán   +2 more
doaj  

Causes and consequences of bacterial local adaptation via MGEs in the plant microbiome

open access: yesNew Phytologist, Volume 249, Issue 5, Page 2215-2223, March 2026.
Summary Adaptations that enable plant‐associated bacteria to fill disparate niches comprise a critical component of microbial diversity. Genes that confer locally adaptive bacterial traits, ranging from heavy metal resistance to pathogen or symbiont infectivity, often reside within mobile genetic elements (MGEs) that can move between genomes.
Stephanie Porter   +3 more
wiley   +1 more source

Pathogenic fungus Ustilago maydis exploits the lateral root regulators to induce pluripotency in maize shoots

open access: yesNew Phytologist, Volume 249, Issue 6, Page 2974-2985, March 2026.
Summary Biotrophic plant–pathogens secrete effector molecules to redirect and exploit endogenous signaling and developmental pathways in their favor. The biotrophic fungus Ustilago maydis causes galls on all aerial parts of maize. However, the responsible gall‐inducing effectors and corresponding plant signaling pathway(s) remain largely unknown. Using
Mamoona Khan   +7 more
wiley   +1 more source

The tasiR‐ARF pathway in plants: origin, functions, and interplay of miR‐390, tasiRNAs and ARF3

open access: yesPlant Biology, Volume 28, Issue 2, Page 328-344, March 2026.
Trans‐acting small interfering RNAs that silence a subset of Auxin Response Factors are crucial for plant growth, developmental timing, proper organ patterning, and coping with stress. Abstract Trans‐acting small interfering RNA (tasiRNAs) are a special type of endogenous small RNAs (sRNAs) found only in plants.
B. A. López‐Ruiz   +4 more
wiley   +1 more source

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