Results 111 to 120 of about 26,051 (349)

An experimental and modelling exploration of the host-sanction hypothesis in legume-rhizobia mutualism [PDF]

open access: yes, 2008
Despite the importance of mutualism as a key ecological process, its persistence in nature is difficult to explain since the existence of exploitative, 'cheating' partners that could erode the interaction is common. By analogy with the proposed
Angeles Hidalgo-Perea   +7 more
core   +1 more source

Tumor‐Derived Alpha‐1 Antitrypsin Promotes Liver Metastasis of Colorectal Cancer Through the Neutrophil Extracellular Traps–CCDC25 Pathway

open access: yesAdvanced Science, EarlyView.
ABSTRACT Liver metastasis is a leading cause of mortality in colorectal cancer (CRC), where the inflammatory tumor microenvironment, specifically neutrophil infiltration, significantly promotes metastatic colonization. This study reveals a pro‐metastatic role for alpha‐1 antitrypsin (A1AT) in CRC liver metastasis via a dual mechanism involving ...
Qian Fei   +11 more
wiley   +1 more source

YOLO-based high-throughput phenotyping pipeline for soybean nodulation traits in genomic research

open access: yesFrontiers in Plant Science
The symbiotic interaction between soybean (Glycine max) and Bradyrhizobium japonicum results in the formation of root nodules, specialized organs that house nitrogen-fixing bacteria converting atmospheric N2 into plant-accessible ammonia (NH3).
Kuber Shivashakarappa   +6 more
doaj   +1 more source

Ammonia Detoxification Inhibits Liver Metastasis by Reshaping Hepatic Microenvironment

open access: yesAdvanced Science, EarlyView.
Liver metastasis diverts aspartate into hyperactive pyrimidine synthesis, disrupting urea cycling and causing pathogenic ammonia accumulation. Ammonia dually reprograms the microenvironment by: (1) activating hepatic stellate cells (HSCs) into pro‐fibrotic metastasis‐associated fibroblasts (MAFs), and (2) suppressing anti‐tumor monocytes/macrophages ...
Sumin Sun   +5 more
wiley   +1 more source

Ectopic expression of the GRAS-type transcriptional regulator NSP2 in Parasponia triggers contrasting effects on symbioses

open access: yesFrontiers in Plant Science
IntroductionPlants strictly control root endosymbioses with nutrient-scavenging arbuscular endomycorrhizal fungi or nodule inducing diazotrophic bacteria. The GRAS-type transcriptional regulator NODULATION SIGNALING PATHWAY 2 (NSP2) is a conserved hub in
Sultan Alhusayni   +5 more
doaj   +1 more source

Autoregulation of Root Nodule Formation: Signals of Both Symbiotic Partners Studied in a Split-Root System of Vicia sativa subsp. nigra

open access: yesMolecular Plant-Microbe Interactions, 2002
Inhibition of root nodule formation on leguminous plants by already induced or existing root nodules is called autoregulation of root nodule formation (AUT).
Anton A. N. van Brussel   +3 more
doaj   +1 more source

Natural Variation of NAR5 Determines Nitrogenase Activity and the Yield in Soybean

open access: yesAdvanced Science, EarlyView.
This study identified NAR5, a gene encoding a subtilisin‐like protease, that regulates nitrogenase activity in soybean nodules. Overexpressing NAR5 delayed nodule senescence, enhancing nitrogenase activity, yield, and low‐nitrogen tolerance. The elite haplotype NAR5HapI‐1 linked to superior nitrogenase activity and greater seed weight has been ...
Chao Ma   +11 more
wiley   +1 more source

Legume rhizodeposition promotes nitrogen fixation by soil microbiota under crop diversification

open access: yesNature Communications
Biological nitrogen fixation by free-living bacteria and rhizobial symbiosis with legumes plays a key role in sustainable crop production. Here, we study how different crop combinations influence the interaction between peanut plants and their ...
Mengjie Qiao   +11 more
doaj   +1 more source

Salicylic Acid Inhibits Indeterminate-Type Nodulation But Not Determinate-Type Nodulation

open access: yesMolecular Plant-Microbe Interactions, 2003
LCOs (lipochitin oligosaccharides, Nod factors) produced by the rhizobial symbiote of Vicia sativa subsp. nigra (vetch, an indeterminate-type nodulating plant) are mitogenic when carrying an 18:4 acyl chain but not when carrying an 18:1 acyl chain.
Paulina C. van Spronsen   +5 more
doaj   +1 more source

Two shifts in evolutionary lability underlie independent gains and losses of root-nodule symbiosis in a single clade of plants [PDF]

open access: green, 2022
Heather R. Kates   +14 more
openalex   +1 more source

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