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The Manuscript Works Of S. Fred Prince (1857-1951), Sarah Burke Cahalan, Jason W. Dean 2018 University of Dayton

The Manuscript Works Of S. Fred Prince (1857-1951), Sarah Burke Cahalan, Jason W. Dean

Marian Library/IMRI Faculty Publications

S. Fred Prince, a botanical illustrator and amateur scientist, is a largely unknown artist whose work on the American landscape demonstrates his eligibility to be considered in the lineage of self-taught illustrator-naturalists such as Mark Catesby and Genevieve Jones. In this article, we present a survey of extant Prince materials identified at time of writing, describing their contents and physical characteristics. Beyond this survey and description, we also provide a biographical sketch and timeline of Prince's life.


Genome Wide Co-Expression Among The Starch Debranching Enzyme Genes Atisa1, Atisa2, And Atisa3 In Arabidopsis Thaliana, Ling Li, Hilal Ilarslan, Martha G. James, Alan M. Myers, Eve Syrkin Wurtele 2017 Iowa State University

Genome Wide Co-Expression Among The Starch Debranching Enzyme Genes Atisa1, Atisa2, And Atisa3 In Arabidopsis Thaliana, Ling Li, Hilal Ilarslan, Martha G. James, Alan M. Myers, Eve Syrkin Wurtele

Eve Wurtele

Each of four starch debranching enzymes (DBE) is distinct and highly conserved across the plant kingdom; however, the specific functions of these proteins in carbohydrate metabolism are not well understood. DBEs function in both biosynthesis and degradation of starch, and two have been shown to function as multimers in various quarternary structures that can contain one or more DBE proteins, i.e. ISA1 homomultimers and ISA1/ISA2 heteromultimers. This study characterizes potential functional relationships between the three isoamylase-type DBE proteins (ISA) of Arabidopsis using a comprehensive bioinformatics analysis and promoter fusion approach to determine tissue-, subcellular-, and temporal specificity of ...


Substantial Contribution Of Genetic Variation In The Expression Of Transcription Factors To Phenotypic Variation Revealed By Erd-Gwas, Hung-ying Lin, Qiang Liu, Xiao Li, Jinliang Yang, Sanzhen Liu, Yinlian Huang, Michael J. Scanlon, Dan Nettleton, Patrick S. Schnable 2017 Iowa State University

Substantial Contribution Of Genetic Variation In The Expression Of Transcription Factors To Phenotypic Variation Revealed By Erd-Gwas, Hung-Ying Lin, Qiang Liu, Xiao Li, Jinliang Yang, Sanzhen Liu, Yinlian Huang, Michael J. Scanlon, Dan Nettleton, Patrick S. Schnable

Agronomy & Horticulture -- Faculty Publications

Background: There are significant limitations in existing methods for the genome-wide identification of genes whose expression patterns affect traits.

Results: The transcriptomes of five tissues from 27 genetically diverse maize inbred lines were deeply sequenced to identify genes exhibiting high and low levels of expression variation across tissues or genotypes. Transcription factors are enriched among genes with the most variation in expression across tissues, as well as among genes with higher-than-median levels of variation in expression across genotypes. In contrast, transcription factors are depleted among genes whose expression is either highly stable or highly variable across genotypes. We developed a ...


Resin Monoterpene Defenses Decline Within Three Widespread Species Of Pine (Pinus) Along A 1530-M Elevational Gradient, Scott Ferrenberg, Joseph M. Langenhan, Jeffry B. Mitton 2017 New Mexico State University - Main Campus

Resin Monoterpene Defenses Decline Within Three Widespread Species Of Pine (Pinus) Along A 1530-M Elevational Gradient, Scott Ferrenberg, Joseph M. Langenhan, Jeffry B. Mitton

University Libraries Open Access Fund Supported Publications

The elevational gradient in plant defense (EGPD) hypothesis posits that natural enemy pressures increase alongside temperature across elevational climatic gradients, thereby selecting for enhanced defenses at lower elevations while leaving plants less defended at higher elevations. Phylogenetically constrained tests of this hypothesis are uncommon, with tests focused on defenses of mature trees in natural settings being exceedingly rare. In the absence of this information, predicting the spatiotemporal dynamics of forest pests that preferentially attack mature trees is rendered more difficult. Tree properties such as age, growth rate, and size have all been correlated with levels of tree defenses against insect ...


Plant Population Prediction Via Leslie Matrices, Daniel Hrozencik, Lina Niu 2017 Chicago State University

Plant Population Prediction Via Leslie Matrices, Daniel Hrozencik, Lina Niu

Annual Symposium on Biomathematics and Ecology: Education and Research

No abstract provided.


Phylogenetic Patterns Of Foliar Mineral Nutrient Accumulation Among Gypsophiles And Their Relatives In The Chihuahuan Desert, Clare Muller, Michael J. Moore, Zoe Feder, Helene Tiley, Rebecca E. Drenovsky 2017 John Carroll University

Phylogenetic Patterns Of Foliar Mineral Nutrient Accumulation Among Gypsophiles And Their Relatives In The Chihuahuan Desert, Clare Muller, Michael J. Moore, Zoe Feder, Helene Tiley, Rebecca E. Drenovsky

2017 Faculty Bibliography

PREMISE OF THE STUDY: Gypsum endemism in plants (gypsophily) is common on gypsum outcrops worldwide, but little is known about the functional ecology of Chihuahuan Desert gypsophiles. We investigated whether leaf chemistry of gypsophile lineages from the northern Chihuahuan Desert are similar to leaves of related nonendemic (gypsovag) species relative to their soil chemistry. We expected widely distributed gypsophiles (hypothesized to be older lineages on gypsum) would have distinct leaf chemistry from narrowly distributed, relatively younger lineages endemic to gypsum and gypsovags, reflecting adaptation to gypsum.

METHODS: We collected leaves from 23 gypsophiles and related nonendemic taxa growing on nongypsum ...


Floristic Response To Urbanization: Filtering Of The Bioregional Flora In Indianapolis, Indiana, Usa, Rebecca W. Dolan, Myla F.J. Aronson, Andrew L. Hipp 2017 Butler University

Floristic Response To Urbanization: Filtering Of The Bioregional Flora In Indianapolis, Indiana, Usa, Rebecca W. Dolan, Myla F.J. Aronson, Andrew L. Hipp

Rebecca W. Dolan

PREMISE OF THE STUDY: Globally, urban plant populations are becoming increasingly important, as these plants play a vital role in ameliorating effects of ecosystem disturbance and climate change. Urban environments act as filters to bioregional flora, presenting survival challenges to spontaneous plants. Yet, because of the paucity of inventory data on plants in landscapes both before and after urbanization, few studies have directly investigated this effect of urbanization.

METHODS: We used historical, contemporary, and regional plant species inventories for Indianapolis, Indiana USA to evaluate how urbanization filters the bioregional flora based on species diversity, functional traits, and phylogenetic community structure ...


Supplemental Data, Russell J. Ingram, Foster Levy, Cindy L. Barrett, James T. Donaldson 2017 University of Georgia

Supplemental Data, Russell J. Ingram, Foster Levy, Cindy L. Barrett, James T. Donaldson

Foster Levy

No abstract provided.


Flax As An Iowa Crop, Chas. S. Reddy, L. C. Burnett 2017 Iowa State College

Flax As An Iowa Crop, Chas. S. Reddy, L. C. Burnett

Bulletin

Among the grain crops in the United States, seed flax is exceeded in value by corn, wheat, oats and barley. It has approximately the same value as rye, rice and sorghums.

As a crop for new land, the flax seed acreage reached a peak (3,700,000 acres) in 1902, but gradually declined to little more than a million acres by 1922. As a crop for old land, taking its place in rotations, flax acreage reached a second peak equal to the first in 1930. Consumption of flax in the United States surpassed production in 1909 and for the past ...


Control Of Cherry Yellow-Leaf On Nursery Stock, George L. McNew, Donald E. Bliss 2017 Iowa State College

Control Of Cherry Yellow-Leaf On Nursery Stock, George L. Mcnew, Donald E. Bliss

Bulletin

Yellow-leaf, caused by the fungus Coccomyces hiemalis Higgins, is the most prevalent and destructive cherry disease in Iowa, since it often causes premature defoliation of both nursery and orchard trees. Early defoliation in nursery stock results in decreased growth during the current and subsequent years, and precludes all possibility of forcing the trees into marketable size in one growing season. In the orchard, defoliation may decrease fruit bud formation and vegetative growth and increase the amount of winterkilling.

All defoliated nursery stock must be held in the nursery row a second season, and even then many of the trees must ...


Control Of Glyphosate-Resistant Common Ragweed (Ambrosia Artemisiifolia L.) In Glufosinate-Resistant Soybean [Glycine Max (L.) Merr], Ethann R. Barnes, Stevan Z. Knezevic, Peter H. Sikkema, John L. Lindquist, Amit J. Jhala 2017 University of Nebraska-Lincoln

Control Of Glyphosate-Resistant Common Ragweed (Ambrosia Artemisiifolia L.) In Glufosinate-Resistant Soybean [Glycine Max (L.) Merr], Ethann R. Barnes, Stevan Z. Knezevic, Peter H. Sikkema, John L. Lindquist, Amit J. Jhala

Agronomy & Horticulture -- Faculty Publications

Common ragweed emerges early in the season in Nebraska, USA and is competitive with soybean; therefore, preplant herbicides are important for effective control. Glyphosate has been used as a preplant control option; however, confirmation of glyphosate-resistant (GR) common ragweed in Nebraska necessitates evaluating other herbicide options. The objectives of this study were to (1) evaluate the efficacy of preplant (PP) herbicides followed by (fb) glufosinate alone or in tank-mixture with imazethapyr, acetochlor, or S-metolachlor applied post-emergence (POST) for control of GR common ragweed in glufosinate-resistant soybean; (2) their effect on common ragweed density, biomass, and soybean yield; and (3) the ...


A Screen For Arabidopsis Thalianamutants With Altered Susceptibility To Heterodera Schachtii, T. J. Baum, M. J. E. Wubben II, K. A. Hardy, H. Su, S. R. Rodermel 2017 Iowa State University

A Screen For Arabidopsis Thalianamutants With Altered Susceptibility To Heterodera Schachtii, T. J. Baum, M. J. E. Wubben Ii, K. A. Hardy, H. Su, S. R. Rodermel

Thomas Baum

Genetic approaches are a powerful means to elucidate plant-pathogen interactions. An in vitro screening protocol was developed to identify Arabidopsis thaliana mutants with altered susceptibility to Heterodera schachtii, the sugar beet cyst nematode. In an initial screen of approximately 5,200 ethyl methanesulfonate-generated mutant plants, two stable mutations were identified. Both mutant lines were backcrossed and were found to harbor single recessive mutant alleles. Mutant line 2-4-6 shows an approximately two-fold increase in sedentary and developing nematodes, while mutant line 10-5-2 exhibits a significant decrease in susceptibility that manifests itself only after nematodes become sedentary. Analyses of progeny from crosses ...


Cabbage Yellows, Caused By Fusarium Conglutinans, In Iowa, I. E. Melhus, A. T. Erwin, Frank Van Haltern 2017 Iowa State College

Cabbage Yellows, Caused By Fusarium Conglutinans, In Iowa, I. E. Melhus, A. T. Erwin, Frank Van Haltern

Bulletin

Cabbage yellows caused by Fusarium conglutinans is widely distributed in Iowa. It probably was introduced into the state just previous to 1910 on cabbage transplants shipped from the southern states. The organism causing cabbage yellows is the chief limiting factor in cabbage production in the Muscatine Island section and contiguous territory on the Iowa side of the Mississippi River. The yellows organism may live in the soil for long periods of time, at least 11 years, and still be destructive to a cabbage crop. Cabbage, cauliflower, Chinese cabbage, kohlrabi and brussels sprouts are known to be hosts of this organism ...


Iowa Seed Analyses, 1910-1913, L. H. Pammel, Charlotte M. King 2017 Iowa State College

Iowa Seed Analyses, 1910-1913, L. H. Pammel, Charlotte M. King

Bulletin

The quality of seeds sold in Iowa has improved greatly since the investigations of the Iowa Agricultural Experiment Station disclosed that much of the clover, alfalfa and timothy seed sold in the state lacked in vitality and purity. Following the publication of Bulletin No. 88, “The Vitality, Adulteration and Impurities of Glover, Alfalfa and Timothy,” the state legislature, in 1908, passed a pure seed law, which became generally known as the “Iowa Seed Law,” and has been incorporated into somewhat similar laws in other states. Under that law seed conditions have become better. In the tests made by the botanical ...


The Effect Of City Smoke On Vegetation, A. L. Bakke 2017 Iowa State College

The Effect Of City Smoke On Vegetation, A. L. Bakke

Bulletin

A study of the smoke problem in Des Moines establishes clearly that the smoke and gases emitted by its many power and heating plant chimneys have a harmful effect upon trees, shrubs and other vegetation. To a large extent, plants serve as good indicators of smoke contamination in a community.

In the immediate neighborhood of the smoke emitting establishments in Des Moines, only a few of the most resistant plants grow, all others being eliminated, A little farther away, where the smoke and gases are not so dense, some additional plants are found and so as the distance increases the ...


Four New Fungous Diseases In Iowa, L. H. Pammel, Charlotte M. King 2017 Iowa State College

Four New Fungous Diseases In Iowa, L. H. Pammel, Charlotte M. King

Bulletin

During the past two seasons several important destructive fungous diseases of cultivated plants have made their appearance in Iowa, namely: Timothy rust, alfalfa rust, apple canker, and onion smut.

About the middle of July, 1910, there was an abundance of timothy rust in a meadow in the vicinity of Ames; subsequently it was reported from other localities in the state. It was again noticed after the September rains in 1911, especially in the timothy breeding plots.


Two Barley Blights, With Comparison Of Species Of Helminthosporium Upon Cereals, L. H. Pammel, Charlotte M. King, A. L. Bakke 2017 Iowa State College

Two Barley Blights, With Comparison Of Species Of Helminthosporium Upon Cereals, L. H. Pammel, Charlotte M. King, A. L. Bakke

Bulletin

Early in June, 1909, the yellow-leaf disease (H . gramineum) was prevalent in some fields of barley at Ames. It appeared just before heading of the grain, and destroyed .50 of one per cent of the barley.

This disease was first recorded* at Ames in 1890. It is characterized by longitudinal yellowish-green spots extending in parallel rows upon the leaves and sheaths. The yellowish-green areas are strongly contrasted to the green of the leaves. All the culms of a single stool are affected, and the diseased plants die prematurely. When the spots of the fungus begin to appear the plant ceases ...


Notes On Eradication Of Weeds, With Experiments Made In 1907 And 1908, L. H. Pammel, Charlotte M. King 2017 Iowa State College

Notes On Eradication Of Weeds, With Experiments Made In 1907 And 1908, L. H. Pammel, Charlotte M. King

Bulletin

The subject of weeds continues to interest the farmers of the state, as much, perhaps, as any problem connected with the farm. An abundance of weeds in a crop seriously interferes with production, not only by shading and crowding the agricultural crop, but by removing useful and necessary constituents from the soil. We receive annually many inquiries from farmers who desire information about the character of weeds, and the best methods of dealing with them. The results of some experiments conducted by the Botanical Section to determine the value of several means of weed extermination are presented in this bulletin ...


Some Plant Diseases Of 1908, L. H. Pammel, Charlotte M. King 2017 Iowa State College

Some Plant Diseases Of 1908, L. H. Pammel, Charlotte M. King

Bulletin

The smut occurs in the smaller spikelets and completely destroys the ovaries, leaving only the outer wall. At maturity the ovary becomes considerably enlarged and the lower part is much darker in color. The wall of the spikelet breaks readily, exposing the spores to the air. The interior is filled with a mass of brown spores which are smooth, spherical to oblong, somewhat angular, from 6 to 8 u broad by 10 to 12 u long, but varying considerably in shape and size. These spores germinate readily in nutrient or lactose, or cane sugar solutions, or sterilized rain water. The ...


The Vitality, Adulteration And Impurities Of Clover, Alfalfa And Timothy Seed For Sale In Iowa In 1906., L. H. Pammel, R. E. Buchanan, Charlotte M. King 2017 Iowa State College

The Vitality, Adulteration And Impurities Of Clover, Alfalfa And Timothy Seed For Sale In Iowa In 1906., L. H. Pammel, R. E. Buchanan, Charlotte M. King

Bulletin

Clover and timothy are the most important hay crops grown in Iowa. The census of 1905 gives the area devoted to the growing of red clover in the state as 237,309 acres; of timothy as 3,642,424 acres. These figures do not Include the area devoted to minor clover crops such as alsike and white clover. It may be said, however, that only a small area in the state is devoted to the growing of the former. The white clover crop covers a much larger area than any other of the leguminous plants. It is, however, seldom sown ...


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