A9799
Agar
High gel strength, suitable for plant cell culture
Synonym(s):
Agar-agar, Gum agar
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About This Item
Linear Formula:
(C12H18O9)n
CAS Number:
EC Number:
MDL number:
UNSPSC Code:
50405901
NACRES:
NA.21
biological source
algae (Rhodophyceae)
Quality Level
form
powder
technique(s)
cell culture | plant: suitable
transition temp
transition temp 32-38 °C (1.5%)
gel strength
>1000 g/cm2
application(s)
agriculture
storage temp.
room temp
SMILES string
O1[C@@H]([C@@H]([C@@H]([C@H](C1OC2[C@H]3OCC2OC([C@H]3O)C)O)OC)O)CO
InChI
1S/C14H24O9/c1-5-8(16)13-11(7(21-5)4-20-13)23-14-10(18)12(19-2)9(17)6(3-15)22-14/h5-18H,3-4H2,1-2H3/t5?,6-,7?,8-,9+,10-,11?,12+,13+,14?/m1/s1
InChI key
GYYDPBCUIJTIBM-DYOGSRDZSA-N
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General description
Agar is a natural polymer extracted from red alga Rhodophyceae, primarily, consisting of alternative D- and L-galactose units. This type of high gel strength agar is used when a firmer gel is required and mostly suitable for plant cell culture.
Agar is a polysaccharide complex obtained through bleaching and hot water extraction of agarocytes from the red alga Rhodophyceae, found in the Pacific and Indian Oceans and the sea of Japan. The genera Gelidium, Acanthopeltis, Ceramium, Pterocladia and Gracilaria predominate in agar production. Agar is composed of about 70% agarose and 30% agaropectin.
Application
Agar has been used:
- as a component of the fruit fly diet
- as a component of saline-agar for the approximation of gray matter from brain
- in in vitro root nodulation assay of Glycine max seeds
Agar has been used:
- in the preparation of laboratory diet to maintain the culture of D. melanogaster wild-type larva
- as a high gel strength agar in the seed culture media to grow Arabidopsis thaliana mutant seeds
- to construct a tissue-mimicking phantom to test the imaging performance of an ultrasound transducer
Biochem/physiol Actions
Agar with a higher percentage of anhydrous units in the backbone of their chemical composition provides superior mechanical stiffness and strength to the pristine hydrogel.
Storage Class Code
11 - Combustible Solids
WGK
WGK 1
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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Takaaki Ogura et al.
Frontiers in plant science, 11, 563-563 (2020-06-26)
Magnesium (Mg) is essential for many biological processes in plant cells, and its deficiency causes yield reduction in crop systems. Low Mg status reportedly affects photosynthesis, sucrose partitioning and biomass allocation. However, earlier physiological responses to Mg deficiency are scarcely
Agar gel strength: A correlation study between chemical composition and rheological properties
Bertasa M, et al.,
European Polymer Journal, 123, 109442-109442 (2020)
Shannon M Boucousis et al.
NeuroImage, 63(3), 1237-1248 (2012-08-21)
Integrating intracranial EEG (iEEG) with functional MRI (iEEG-fMRI) may help elucidate mechanisms underlying the generation of seizures. However, the introduction of iEEG electrodes in the MR environment has inherent risk and data quality implications that require consideration prior to clinical
Improved nodulation and seed yield of soybean (Glycine max) with a new isoflavone-based inoculant of Bradyrhizobium elkanii
Riviezzi B, et al.
Rhizosphere, 15, 100219-100219 (2020)
Lindsey J Gray et al.
Journal of insect physiology, 104, 60-70 (2017-12-06)
Optimal life-history strategies are those that best allocate finite environmental resources to competing traits. We used the geometric framework for nutrition to evaluate life-history strategies followed by Drosophila melanogaster by measuring the condition-dependent performance of life-history traits, including the morphology
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