Results 51 to 60 of about 326,919 (211)

Pathogenic and enzyme activities of the entomopathogenic fungus Tolypocladium cylindrosporum (Ascomycota: Hypocreales) from Tierra del Fuego, Argentina [PDF]

open access: yes, 2012
Tolypocladium cylindrosporum is an entomopathogenic fungi that has been studied as a biological control agent against insects of several orders. The fungus has been isolated from the soil as well as from insects of the orders Coleoptera, Lepidoptera ...
Cabello, Marta Noemí   +5 more
core   +2 more sources

Efecto del estrés producido por la mezcla de sales en la concentración de aldehído malónico, proteínas y enzimas antioxidantes de Leymus chinensis de tres colores foliares diferentes [PDF]

open access: yes, 2017
The mixed salt stress is common in nature. Salt stressalways affects plant growth. Different plant species have different adaptive capacity to salty soil. Leymus chinensis is an herbaceous plant with different leaf colors.
Busso, Carlos Alberto   +6 more
core  

Protective effect exerted by soil phosphorus on soybean subjected to arsenic and fluoride [PDF]

open access: yes, 2017
Objetive: Arsenic (As) and fluoride (F) are found in groundwater and soils around the world, causing different problems to crops. Because these elements compete against phosphorus (P) in soils and plants, their relationship is complex.
Balestrasse, Karina Beatriz   +3 more
core   +1 more source

Changes in Biological, Chemical and Soil Fertility Characteristics as a Result of Land Use Change (A Case Study: Mokhtar Region of Yasouj)

open access: yesعلوم آب و خاک, 2020
The conversion of forests to agricultural lands generally has damaging effects on soil qualitative indices. This study was conducted to investigate the effects of land use change on the physico- chemical and biological characteristics of the soils of ...
H. Owliaie   +3 more
doaj  

Agriculture by Irrigation Modifies Microbial Communities and Soil Functions Associated With Enhancing C Uptake of a Steppe Semi-Arid Soil in Northern Patagonia

open access: yesFrontiers in Soil Science, 2022
The transformation of the semiarid steppe soil after 5 years of intensive irrigated agriculture in Northern Patagonia was analyzed in an on-farm study. The private grower venture used conservative practices, including no-till to maintain soil structure ...
Juan P. Frene   +8 more
doaj   +1 more source

Scoping biological indicators of soil quality Phase II. Defra Final Contract Report SP0534 [PDF]

open access: yes, 2011
This report presents results from a field assessment of a limited suite of potential biological indicators of soil quality to investigate their suitability for national-scale soil ...
Black, H.I.J.   +9 more
core  

Degradation of pesticides by the ligninolytic enzyme Laccase : optimisation of in vitro conditions, immobilisation and screening for natural mediators [PDF]

open access: yes, 2013
Pesticides are widely used in many industries but the majority reaches non-target organisms or locations through point or diffuse sources. Understanding conditions for their degradation is therefore important.
Farragher, Naomi
core   +1 more source

CLONING, EXPRESSION IN ESCHERICHIA-COLI, AND CHARACTERIZATION OF CELLULOLYTIC ENZYMES OF AZOARCUS SP, A ROOT-INVADING DIAZOTROPH [PDF]

open access: yes, 1993
We screened members of a new genus of grass-associated diazotrophs (Azoarcus spp.) for the presence of cellulolytic enzymes. Out of five Azoarcus strains representing different species, only in the endorhizosphere isolate BH72, which is also capable of ...
REINHOLD-HUREK, B   +3 more
core   +1 more source

Variations of microbial communities and enzyme activities in rhizosphere and non-rhizosphere soils of aged Loropetalum chinense forests in karst rocky mountains during dry and rainy seasons

open access: yesGuangxi Zhiwu
To understand the seasonal changes and influencing factors of soil biological activity in karst areas, we investigated the changes in rhizosphere and non-rhizosphere soil microbial communities and enzyme activity of the Loropetalum chinense community in ...
WANG Yanan1,2, MA Jiangming1,2*, LIANG Yueming3, YANG Hao1,2
doaj   +1 more source

Effects of selenium biofortification on crop nutritional quality [PDF]

open access: yes, 2015
Selenium (Se) at very low doses has crucial functions in humans and animals. Since plants represent the main dietary source of this element, Se-containing crops may be used as a means to deliver Se to consumers (biofortification). Several strategies have
Dall'Acqua, Stefano   +3 more
core   +1 more source

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