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Institution

Clemson University

EducationClemson, South Carolina, United States
About: Clemson University is a education organization based out in Clemson, South Carolina, United States. It is known for research contribution in the topics: Population & Control theory. The organization has 20556 authors who have published 42518 publications receiving 1170779 citations. The organization is also known as: Clemson Agricultural College of South Carolina.


Papers
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Journal ArticleDOI
TL;DR: Cloning a gene (MAC1) encoding adenylate cyclase, a membrane-bound enzyme that catalyzes the production of cAMP from ATP, confirms that cell signaling involving cAMP plays a central role in the development and pathogenicity of M. grisea.
Abstract: Magnaporthe grisea, the causal agent of rice blast disease, differentiates a specialized infection structure called an appressorium that is crucial for host plant penetration. Previously, it was found that cAMP regulates appressorium formation. To further understand the cellular mechanisms involved in appressorium formation, we have cloned a gene (MAC1) encoding adenylate cyclase, a membrane-bound enzyme that catalyzes the production of cAMP from ATP, by using a polymerase chain reaction-based strategy. The entire gene was isolated and subcloned from a large insert bacterial artificial chromosome library. Sequence characterization showed that MAC1 has a high degree of identity with other adenylate cyclase genes from several filamentous fungi as well as yeasts. Gene deletion resulted in reduced vegetative growth, conidiation, and conidial germination. Transformants lacking MAC1 were unable to form appressoria on an inductive surface and were unable to penetrate susceptible rice leaves. mac1- transformants were also sterile and produced no perithecia. Appressorium formation was restored in the presence of exogenous cAMP derivatives. These results confirm that cell signaling involving cAMP plays a central role in the development and pathogenicity of M. grisea.

342 citations

Journal ArticleDOI
TL;DR: In this article, the effect of edible coatings in combination with antibrowning agents on minimally processed apple slices was studied during storage at 3°C for 2 weeks, and the results showed that WPC (5.5g/100mL) containing ascorbic acid plus CaCl 2 (1g/ 100mL) was the most effective preservation treatment in terms of sensory quality after 2 week.
Abstract: Effect of edible coatings in combination with antibrowning agents on minimally processed apple slices was studied during storage at 3°C for 2 week. To control initial respiration rate of apple slices, edible coatings were applied to cut apples as semipermeable barriers against air. Initial respiration rate showed a decrease by 5% and 20% in carrageenan (0.5 g/100 mL)-coated and whey protein concentrate (5 g/100 mL)-coated apples, respectively, at 25°C. Edible coatings in combination with antibrowning agents effectively prolonged the shelf-life of minimally processed apple slices by 2 week when stored in packed trays at 3°C. Addition of various antibrowning agents to these coating solutions was advantageous in maintaining color during storage. Addition of CaCl 2 (1 g/100 mL) significantly inhibited the loss of firmness. These edible coatings in combination with antibrowning agents also showed positive sensory analysis results and beneficial reduction of microbial levels. WPC (5 g/100 mL) containing ascorbic acid (1 g/100 mL) plus CaCl 2 (1 g/100 mL) was the most effective preservation treatment in terms of sensory quality after 2 week.

341 citations

Journal ArticleDOI
TL;DR: In this article, the impact of water vapor on the formation of Co-support compounds and the resulting characteristics of Co/γ-Al 2 O 3 and Co-Ru/γ -Al 2O 3 catalysts were investigated to develop a better understanding of the nature of the cobalt compounds formed and the effect of noble metal promotion on their formation.

340 citations

Journal ArticleDOI
TL;DR: In this paper, a method for size-controlled synthesis of chemically clean silver nanoparticles is proposed and described based on the reduction of silver(I) oxide by hydrogen gas in water and offers the advantages of being easily scalable and able to produce essentially naked particles still exhibiting longterm stability with the metal surface readily accessible to various chemical modifications.
Abstract: A method for size-controlled synthesis of chemically clean silver nanoparticles is proposed and described. The synthesis is based on the reduction of silver(I) oxide by hydrogen gas in water and offers the advantages of being easily scalable and able to produce essentially naked particles still exhibiting long-term stability with the metal surface readily accessible to various chemical modifications. The method allows synthesis of particles of any diameter between 15 and 200 nm simply by varying the reaction time. The addition of filtration and centrifugation techniques produces suspensions of narrow size distribution and relatively high, 1012−1014 particles/mL, concentration. The addition of various complexating agents potentially allows control of nanoparticle shape. The nanoparticles were characterized by UV−vis spectroscopy, electron microscopy, and electron and X-ray diffraction techniques.

340 citations

Journal ArticleDOI
TL;DR: A list of all crayfishes in the United States and Canada that includes common names; state and provincial distributions; a comprehensive review of the conservation status of all taxa; and references on biology, conservation, and distribution is provided.
Abstract: The American Fisheries Society Endangered Species Committee herein provides a list of all crayfishes (families Astacidae and Cambaridae) in the United States and Canada that includes common names; state and provincial distributions; a comprehensive review of the conservation status of all taxa; and references on biology, conservation, and distribution. The list includes 363 native crayfishes, of which 2 (⟨ 1%) taxa are listed as Endangered, Possibly Extinct, 66 (18.2%) are Endangered, 52 (14.3%) are Threatened, 54 (14–9%) are Vulnerable, and 189 (52.1%) are Currently Stable. Limited natural range continues to be the primary factor responsible for the noted imperilment of crayfishes; other threats include the introduction of nonindigenous crayfishes and habitat alteration. While progress has been made in recognizing the plight of crayfishes, much work is still needed.

339 citations


Authors

Showing all 20718 results

NameH-indexPapersCitations
Yury Gogotsi171956144520
Philip S. Yu1481914107374
Aaron Dominguez1471968113224
Danny Miller13351271238
Marco Ajello13153558714
David C. Montefiori12992070049
Frank L. Lewis114104560497
Jianqing Fan10448858039
Wei Chen103143844994
Ken A. Dill9940141289
Gerald Schubert9861434505
Rod A. Wing9833347696
Feng Chen95213853881
Jimin George9433162684
François Diederich9384346906
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
202363
2022253
20212,407
20202,362
20192,080
20181,978