The role of weed invasion in controlling sand dune reactivation in abandoned fields in semi-arid Inner Mongolia, China

ABSTRACTThe contribution of a population of mound building, detritivorous termites (Amitermes laurensis (Mjöberg)) to nett carbon mineralization in an Australian tropical semi-arid woodland has been examined. Carbon mineralization rates were estimated by measuring daily CO2 flux from five termite mounds at monthly intervals for 12 months. Carbon flux from the mounds was found to be due to microbial activity as well as termite activity. It is conservatively estimated that the association of A. laurensis and the microbial population present in their mounds is responsible for between 4%–10% of carbon mineralized in this ecosystem, and the contribution of all termites together (mound builders and subterranean) may account for up to 20% of carbon mineralized. Regression analysis showed that rates of carbon mineralization in termite mounds were significantly related to mound moisture and mound temperature. Soil moisture was the most important factor in soil carbon mineralization, with temperature and a moisture X temperature interaction term also exerting significant affects.

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The role of elevated levels of microRNA-155-5p and microRNA-124-5p in hyperuricemia and acute ischemic stroke

Materials Express ◽

10.1166/mex.2021.2080 ◽

2021 ◽

Vol 11 (10) ◽

pp. 1674-1680

Author(s):

Yuan Yao ◽

Jun Yuan ◽

Yanju Ma ◽

Runxiu Zhu ◽

Yong Ma

Keyword(s):

Ischemic Stroke ◽

Acute Ischemic Stroke ◽

Clinical Application ◽

Cerebral Vasospasm ◽

Rat Model ◽

Inner Mongolia ◽

Neuronal Apoptosis ◽

Projection Neuron ◽

Neuron Differentiation

Hyperuricemia is closely related to acute ischemic stroke (AIS). In our study, we investigated the pattern of miRNA-155-5p and miRNA-124-5p expressions along with its clinical application in AIS and hyperuricemia patients and in a hyperuricemia rat model by RT-qPCR. The hyperuricemia rat model was established, and we found that the levels of miRNA-155-5p and miRNA-124-5p were increased in the serum, brain and kidney tissues compared with those in the normal rats. We proved that the levels of miRNA-155-5p and miRNA-124-5p were also elevated in AIS, hyperuricemia and AIS accompanied with hyperuricemia patients enrolled from the department of neurology in Inner Mongolia People’s Hospital (IMPH). The miRNA-155-5p and miRNA-124-5p were mainly associated with neuronal apoptosis, cerebral vasospasm, neuron projection, neuron projection morphogenesis, neuron differentiation and exocytosis. The above results might provide clues for the study the pathogenesis of AIS and hyperuricemia.

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The role of supplementary irrigation for food production in a semi-arid country – Palestine

Water Resources of Arid Areas ◽

10.1201/9780203023402.ch23 ◽

2004 ◽

pp. 191-200

Author(s):

Mohammed Yousef Sbeih

Keyword(s):

Food Production ◽

Supplementary Irrigation ◽

Semi Arid

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Non-crop resources and the role of indigenous knowledge in semi-arid production of Mexico

Agriculture Ecosystems & Environment ◽

10.1016/j.agee.2006.06.015 ◽

2007 ◽

Vol 119 (1-2) ◽

pp. 39-48 ◽

Cited By ~ 32

Author(s):

Isabelle Blanckaert ◽

Koenraad Vancraeynest ◽

Rony L. Swennen ◽

Francisco J. Espinosa-García ◽

Daniel Piñero ◽

...

Keyword(s):

Indigenous Knowledge ◽

Semi Arid

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The role of waterlogging and sand accretion in modulating the morphology of the dune slack plant Scirpus americanus

Canadian Journal of Botany ◽

10.1139/b90-230 ◽

1990 ◽

Vol 68 (8) ◽

pp. 1780-1787 ◽

Cited By ~ 12

Author(s):

Denise M. Seliskar

Keyword(s):

Sand Dune ◽

Plant Morphology ◽

Common Garden ◽

Stem Growth ◽

Reciprocal Transplant ◽

Dune Slack ◽

Coastal Sand Dune ◽

Scirpus Americanus ◽

Common Garden Experiments

Scirpus americanus Pers., a major dune slack plant in coastal sand dune ecosystems, differs in height along transects ranging between the lowest and highest elevational areas of slacks located along the coast of Delaware, U.S.A. Using reciprocal transplant and common garden experiments, results suggest that environmental factors rather than hereditary traits are more important in accounting for the differences in plant morphology expressed in the field. Dune slack plants are exposed to stresses of waterlogging and sand accretion in their natural environment. In controlled greenhouse experiments waterlogging was shown to inhibit stem growth and cause an increase in aerenchymatous tissue, whereas periodic sand deposition caused an increase in the plant height of Scirpus.

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