Results 51 to 60 of about 22,571,634 (310)

The Effect of Surface and Subsurface Drip Irrigation System on Qualitative and Quantitative Characteristics of Dates of Kabkab Cultivar [PDF]

open access: yesعلوم و مهندسی آبیاری, 2019
Increased production per unit volume of consumed water requires more precise planning in selecting the appropriate irrigation method for the optimal use of available water resources in the agricultural sector.
Nader Salamati   +2 more
doaj   +1 more source

Structural and biochemical analysis of a B12 superbinder

open access: yesFEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices   +3 more
wiley   +1 more source

IRRIGATION STRATEGIES WITH WATER DEFICIT IN ‘TOMMY ATKINS’ MANGO TREE [PDF]

open access: yesEngenharia Agrícola, 2016
With the limited availability of water in semi-arid regions, it is necessary that irrigation is accurate and there is high water use efficiency. This study aimed to evaluate the regulated deficit irrigation (RDI) and partial rootzone drying (PRD) in ...
Marcelo R. Dos Santos   +4 more
doaj   +1 more source

Linking water use efficiency with water use strategy from leaves to communities

open access: yesNew Phytologist, 2023
SummaryLimitations and utility of three measures of water use characteristics were evaluated: water use efficiency (WUE), intrinsic WUE and marginal water cost of carbon gain () estimated, respectively, as ratios of assimilation (A) to transpiration (E), of A to stomatal conductance (gs) and of sensitivities of E and A with variation in gs.
Jie Liang   +5 more
openaire   +2 more sources

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

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

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

open access: yesFEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui   +4 more
wiley   +1 more source

Nonparametric approach for measuring the productivity change and assessing the water use efficiency in the irrigated areas of Tunisia [PDF]

open access: yes
In order to cope with the water scarcity, Tunisia has to manage efficiently the demand of the economic and social sectors mainly that of the agricultural irrigated activities. Within this context our investigation aims to analyze the technical efficiency,
Chemak, Fraj
core   +2 more sources

Improving plants' water use efficiency and potential impacts from soil structure change - research investment opportunities

open access: yes, 2005
The Board of the National Program for Sustainable Irrigation commissioned this scoping document to assist in its research investment deliberations. The key questions addressed by this scoping study are: 1. What understanding, techniques and tools require
Loch, R. J.   +3 more
core   +1 more source

The role of supplemental irrigation to crop water use under rainwater harvesting

open access: yesBioscience Journal, 2017
Sorghum is an important food and dominant multi-purpose cereal crop in Sudan. Its production influenced by plant available soil water content at planting and growing season rainfall. Series of field experiments were carried-out to study the sorghum water
Abubaker B Ali   +3 more
doaj   +3 more sources

Home - About - Disclaimer - Privacy