scholarly journals Lehmann Lovegrass on the Santa Rita Experimental Range, 1937-1968 (El Zacate Lehmann Lovegrass en la Estacion Experimental de Santa Rita Durante los Anos de 1937-68)

1971 ◽  
Vol 24 (1) ◽  
pp. 17 ◽  
Author(s):  
Dwight R. Cable
2020 ◽  
Author(s):  
Hannah E. Marx ◽  
Stephen Scheidt ◽  
Michael S. Barker ◽  
Katrina M. Dlugosch

ABSTRACTPremise of the studyTagSeq is a cost-effective approach for gene expression studies requiring a large number of samples. To date, TagSeq studies in plants have been limited to those with a high quality reference genome. We tested the suitability of reference transcriptomes for TagSeq in non-model plants, as part of a study of natural gene expression variation at the Santa Rita Experimental Range NEON core site.MethodsTissue for TagSeq was sampled from multiple individuals of four species [Bouteloua aristidoides and Eragrostis lehmanniana (Poaceae); Tidestromia lanuginosa (Amaranthaceae), and Parkinsonia florida (Fabaceae)] at two locations on three dates (56 samples total). One sample per species was used to create a reference transcriptome via standard RNA-seq. TagSeq performance was assessed by recovery of reference loci, specificity of tag alignments, and variation among samples.ResultsA high fraction of tags aligned to each reference and mapped uniquely. Expression patterns were quantifiable for tens of thousands of loci, which revealed consistent spatial differentiation in expression for all species.DiscussionTagSeq using de novo reference transcriptomes was an effective approach to quantifying gene expression in this study. Tags were highly locus specific and generated biologically informative profiles for four non-model plant species.


2002 ◽  
Author(s):  
Mitchel P. McClaran ◽  
Deborah L. Angell ◽  
Craig Wissler

The Condor ◽  
1965 ◽  
Vol 67 (4) ◽  
pp. 344-351 ◽  
Author(s):  
Anders H. Anderson ◽  
Anne Anderson

2013 ◽  
Vol 60 (1) ◽  
Author(s):  
Mohd Azizi Che Yunus ◽  
Manzurudin Hasan ◽  
Norasikin Othman ◽  
Siti Hamidah Mohd-Setapar ◽  
Liza Md.-Salleh ◽  
...  

Kajian ini bertujuan untuk mengkaji kesan saiz zarah ke atas pengekstrakan sebatian catechin daripada biji Areca catechu L. dengan menggunakan Pengekstrakan Pelarut Terpecut (PPT). Saiz zarah biji Areca catechu dipelbagaikan dari 75 μm sehingga 500 μm. Pengekstrakan telah dijalankan padaparameter tetap iaitu suhu (140oC), tekanan (1500 psi), masa (10 minit), isipadu semburan (60%) dan satu kitaran pengekstrakan, masing-masing. Hasil minyak peratusan yang lebih tinggi adalah 300 mg minyak / gram sampel (30.00% pati minyak) ditemui pada 125 μm. Walaubagaimanapun, kandungan catechin dalam pati minyak hanya 0.0375 mg catechin / gram sampel. Saiz zarah yang terbaik dalam julat uji kaji ini telah dikenal pasti pada 500 μm yang memberikan kandungan catechin yang tinggi iaitu 0.0515 mg catechin / gram sampel dari 247.5 mg minyak / gram sampel (24.75% pati minyak). Kata kunci: Saiz zarah; catechin; LC-MS-TOF; pengekstrakan pelarut terpecut The purpose of this work is to investigate the effects of particle size on the extraction of catechincompound from Areca catechu L. seeds by using Accelerated Solvent Extraction (ASE). The particle sizes of Areca catechu L. seeds are varied from 75 µm until 500 µm. The extraction is conducted at fixed parameters which are temperature (140oC), pressure (1500 psi), extraction time (10 minutes), flush volume (60%) and the static cycle is done for 1 extraction cycle respectively. Higher percentage oil yield of 300mg oil/gram of sample (30.00% oil yield) is found at 125 µm. However, the amount of catechin in oil yields is only 0.0375 mg of catechin/gram of sample. The best of particle size within the experimental range has been identified at 500 µm which gives a high content of catechin with 0.0515 mg Catechin/gram of sample from 247.5 mg oil/gram of sample (24.75% oil yield). Keywords: Particle size; catechin; LC-MS-TOF; accelerated solvent extraction


1943 ◽  
Vol 30 (3) ◽  
pp. 626 ◽  
Author(s):  
Elbert L. Little ◽  
Robert S. Campbell

Science ◽  
1933 ◽  
Vol 78 (2024) ◽  
pp. 342-342
Author(s):  
R. H. Canfield
Keyword(s):  

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