Results 91 to 100 of about 3,213 (202)

Papel del alga Nostoc commune y efecto del pastoreo por vacunos sobre la colonización de suelos alcalinos en la Pampa Deprimida

open access: yesEcología Austral, 2002
El alga Nostoc commune (Vauch.), una cianofícea fotótrofa y fijadora de nitrógeno, es conspicua en los suelos alcalinos de la Pampa Deprimida. Se evaluó la posible relación positiva entre la presencia de Nostoc commune y la germinación de semillas y la ...
Oscar E. Ansín   +2 more
doaj  

Descripción de la morfología microscópica de comunidades de nostoc sp, provenientes de la parroquia de Pintag provincia de Pichincha. [PDF]

open access: yes, 2016
This research describes the microscopic morphology of Nostoc sp., from Pintag (Pichincha), in relation to weather variables from May to September 2015.
Ortega Tapia, Geovanny Daniel   +1 more
core  

Remote sensing and spectroscopy of lichens

open access: yesEcology and Evolution, Volume 14, Issue 3, March 2024.
We analyzed and summarized which lichen species or genera, and in which habitats and geographical regions, have been remotely sensed, and which remote sensing or spectroscopic technologies have been used. We found that laboratory or in situ measured spectra of over 70 lichen species have been reported to date.
Miina Rautiainen   +2 more
wiley   +1 more source

Fijacion de nitrogeno por algas cianoficeas en los arrozales de la Albufera de Valencia [PDF]

open access: yes, 2012
Se realizan recuentos ,aislamiento, identificación y determinación de la actividad Nitrogenasa de algas azules en muestras de suelo y agua, durante dos ciclos de cultivo del arroz .
Hernández Mariné, Ma. de la Concepción   +4 more
core   +1 more source

Characterization of Nitrogen-Fixing Cyanobacterial Consortia Isolated from the Rhizosphere of Carica papaya

open access: yesAgronomy
Nitrogen-fixing cyanobacterial consortia are an alternative to the indiscriminate use of chemical fertilizers that affect the environment, fix atmospheric nitrogen, and can therefore be used as plant growth promoters, synthesize various substances such ...
Yadenis Ortega Díaz   +9 more
doaj   +1 more source

Tolerance to freezing stress in cyanobacteria, Nostoc commune and some cyanobacteria with various tolerances to drying stress [PDF]

open access: yes, 2004
Tolerance to and effects of the freezing stress in a desiccation-tolerant, terrestrial cyanobacterium, Nostoc commune, in cultivated strains of N. commune, and in desiccation-sensitive species, Synechocystis sp.
Hiroyuki Koike   +5 more
core   +1 more source

Percoll ミツド コウバイ ヲ モチイタ エンシンブンリ ニヨル イシクラゲ ノ サイボウガイタトウ (EPS) ジョキョ サイボウ ノ タンリホウ [PDF]

open access: yes, 2012
陸生ラン色細菌のイシクラゲ(Nostoc commune)は南極や日本にも生育する汎存種である.イシクラゲの細胞の周りに存在する細胞外多糖(EPS)は,水分保持や細胞の保護に役立つと共に遮光性物質を蓄積しており,これが苛酷な環境への適応に重要な役割を果たしていると考えられている.南極産の貴重なイシクラゲを材料にしてこの仮説を検証するためには,EPSを除去した細胞を高収率で回収する必要がある.そこで,これまでに報告のあるEPS除去方法を改良し,Percollを用いた遠心分離で細胞の回収率向上を図った ...
Makiko Kosugi   +7 more
core   +1 more source

CyanoNews (Vol. 11, No. 2, July 1995) [PDF]

open access: yes, 1995
CyanoNews was a newsletter that served the cyanobacteriological community from 1985 to 2003, with content provided by readers (sort of a blog before there were blogs). The newsletter reported new findings from the lab, summaries of recent meetings (often
Elhai, Jeff
core   +1 more source

Desiccation tolerance of Botryococcus braunii (Trebouxiophyceae, Chlorophyta) and extreme temperature tolerance of dehydrated cells [PDF]

open access: yes, 2014
Botryococcus braunii Kützing, a green colonial microalga, occurs worldwide in both freshwater and brackish water environments. Despite considerable attention to B.
Demura Mikihide   +6 more
core   +1 more source

Composite exopolysaccharide-based hydrogels extracted from Nostoc commune V. as scavengers of soluble methylene blue

open access: yesFoods and Raw Materials
The industrial water contamination with synthetic dyes is currently a cause for concern. This paper introduces composite hydrogels as alternative scavengers of soluble dyes.
Nora Gabriela Herrera   +4 more
doaj   +1 more source

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