Results 121 to 130 of about 9,703,974 (249)

Root-associated fungal communities are influenced more by soils than by plant-host root traits in a Chinese tropical forest

open access: yes, 2023
Forest fungal communities are shaped by the interactions between host tree root systems and the associated soil conditions. We investigated how the soil environment, root morphological traits, and root chemistry influence root-inhabiting fungal ...
USDA Forest Service, Northern Research Station (17857238)
core  

Root Systems of Five Clonal Avocado Genotypes

open access: yesHorticulturae
The root system of clonal rootstocks has been poorly studied, despite its crucial importance. Roots not only provide support and nutrition to the plant but also contribute to tolerance to pests, diseases and environmental stresses, in addition to ...
Nancy Elena Gonzalez-Florez   +4 more
doaj   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

open access: yesFEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav   +2 more
wiley   +1 more source

Completely Integrable Systems Associated with Classical Root Systems

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2007
We study integrals of completely integrable quantum systems associated with classical root systems. We review integrals of the systems invariant under the corresponding Weyl group and as their limits we construct enough integrals of the non-invariant ...
Toshio Oshima
doaj  

Embeddings of root systems I: Root systems over commutative rings

open access: yesJournal of Algebra, 2009
The paper under review considers a class of reflection representations of Coxeter groups over commutative unital rings \(R\) and their corresponding root systems. For \(R=\mathbb{R}\), these include the standard (real, reduced) root systems. In general, they also include, for any (unital) subring \(Z\) of \(\mathbb{R}\), certain root systems over ...
openaire   +2 more sources

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

open access: yesFEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

Root pressure probe can be used to measure the hydraulic properties of whole root systems of corn (Zea mays L.)

open access: yes, 2009
Root pressure probes have been widely employed to measure the hydraulic properties of roots from various plants in the past two decades. However, they have not been used on the whole root systems of any gramineous seedling.
Deng Xi-Ping   +3 more
core  

Role of chromatin factors in Arabidopsis root stem cell maintenance [PDF]

open access: yes, 2008
Stem cells replenish the cells present in an organism throughout its lifetime and sustain growth. They have unique characteristics: the capability to self-renew and the potential to differentiate into several cell types.
Pattern and polarity in Arabidopsis root development   +2 more
core   +1 more source

Trickle irrigation systems affect spatial distribution of roots of banana crop

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental
Trickle irrigation has been largely used for banana in Brazil, mainly due to the increase in water and fertilizer use efficiency. These irrigation systems have different options concerning number, type and flow rate of emitters as well as for hydraulics,
Edvaldo B. Santana Junior   +5 more
doaj   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

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