Botany Commons^™

Syringa Amurensis Rupr., John E. E. Ebinger

Specimens by Name

No abstract provided.

Evolution Of Floral Zygomorphy In Androecium And Corolla In Solanaceae, Jingbo Zhang, Peter Stevens, Wenheng Zhang

Biology Department Faculty Works

In Solanaceae, a group dominated by actinomorphic‐flowered species, floral zygomorphy is frequently observed among the early‐branching clades. Morphological studies indicated that a zygomorphic androecium is much more common than a zygomorphic corolla in the family. Ontogenic studies suggested the evolution of floral zygomorphy in these two whorls is independent. Here, we have examined the evolution of floral symmetry in the androecium and corolla in Solanaceae. The character states of floral symmetry were assembled for androecium and corolla separately, and ancestral state reconstructions were carried out at both the genus and species levels for Solanaceae and its outgroups. Correlation tests were …

Phospholipase Dζ Enhances Diacylglycerol Flux Into Triacylglycerol, Wenyu Yang, Geliang Wang, Jia Li, Philip Bates, Xuemin Wang, Douglas Allen

Biology Department Faculty Works

Plant seeds are the primary source of triacylglycerols (TAG) for food, feed, fuel, and industrial applications. As TAG is produced from diacylglycerol (DAG), successful engineering strategies to enhance TAG levels have focused on the conversion of DAG to TAG. However, the production of TAG can be limited by flux through the enzymatic reactions that supply DAG. In this study, two Arabidopsis phospholipase Dζ genes (AtPLDζ1 and AtPLDζ2) were coexpressed in Camelina sativa to test whether the conversion of phosphatidylcholine to DAG impacts TAG levels in seeds. The resulting transgenic plants produced 2% to 3% more TAG as a component of …

An On-Campus Botanical Tour To Promote Student Satisfaction And Learning In A University Level Biodiversity Or General Biology Course, Harish H. Ratnayaka

Faculty and Staff Publications

Outdoor, hands-on and experiential learning, as opposed to instruction-based learning in classroom, increases student satisfaction and motivation leading to a deeper understanding of the subject. However, the use of outdoor exercises in undergraduate biology courses is declining due to a variety of constraints. Thus, the goal of this paper is to describe a convenient, no-cost and flexible exercise using an on-campus botanical tour for strengthening specific knowledge areas of major plant groups. Its assessment on conduct and coverage, and student-perceived and actual knowledge gain is also described. Data presented derived from traditional biology undergraduates in sophomore year over nine fall …

A Comprehensive Image-Based Phenomic Analysis Reveals The Complex Genetic Architecture Of Shoot Growth Dynamics In Rice (Oryza Sativa), Malachy T. Campbell, Qian Du, Kan Liu, Chris J. Brien, Bettina Berger, Chi Zhang, Harkamal Walia

Agronomy & Horticulture -- Faculty Publications

Early vigor is an important trait for many rice (Oryza sativa L.)- growing environments. However, genetic characterization and improvement for early vigor is hindered by the temporal nature of the trait and strong genotype × environment effects. We explored the genetic architecture of shoot growth dynamics during the early and active tillering stages by applying a functional modeling and genomewide association (GWAS) mapping approach on a diversity panel of ~360 rice accessions. Multiple loci with small effects on shoot growth trajectory were identified, indicating a complex polygenic architecture. Natural variation for shoot growth dynamics was assessed in a subset …

Effects Of Habitat Restoration On Soil Retention On Santa Rosa Island, Michael Perez, Kathryn Mceachern, Ken Niessen

STAR Program Research Presentations

Ranching began on Santa Rosa Island in the 1840’s, consequently introducing nonnative megafauna that put novel selective grazing pressures on endemic plant species. Their movement patterns also altered substrate integrity as the land became denuded of any stabilizing vegetation. Dense groves of island oak (Q. tomentella) are known to aid in sediment deposition and retention. The groves also function to collect water during periods of intense fog common to the island. This experiment sought to determine whether sediment is being lost or deposited on a ridge in the middle of the island containing a grove of Q. tomentella …

Vascular Plants Of The Scott Mountain Campground Area Trinity And Siskiyou Counties, California, James P. Smith Jr, John O. Sawyer Jr.

Botanical Studies

No abstract provided.

California Vascular Plants: A Numerical Conspectus As Seen In Six Standard Floras, James P. Smith Jr

Botanical Studies

No abstract provided.

The Spaghetti Tree, James P. Smith Jr

Botanical Studies

No abstract provided.

Vascular Plants Of Trinidad Head, Humboldt County, California, James P. Smith Jr

Botanical Studies

No abstract provided.

A Chronicle Of Economic Botany, James P. Smith Jr

Botanical Studies

No abstract provided.

Botanist And Plant Exploration On The Pacific Coast Of North America: A Bibliography, James P. Smith Jr

Botanical Studies

No abstract provided.

Plant Domestication, James P. Smith Jr

Botanical Studies

No abstract provided.

2001 Lilley Cornett Woods Soil Data, Ryan W. Mcewan, Julia I. Chapman, Robert N. Muller

Data Files: Big Everidge Hollow Permanent Plots

Data collected in 2001 on the soil in the Big Everidge Hollow portion of the Lilley Cornett Woods Appalachian Ecological Research Station in southeastern Kentucky. Data key is provided in a supplemental file.

DOI: http://doi.org/10.26890/lcw.r9anrrko79

Dichotomous Keys - Their Structure And Use, James P. Smith Jr

Botanical Studies

No abstract provided.

Oklahoma Vascular Plants - A Numerical Conspectus, James P. Smith Jr

Botanical Studies

No abstract provided.

Publication Dates Of Selected Vascular Plant Families, James P. Smith Jr

Botanical Studies

No abstract provided.

Grasses Of The United States: Number Of Genera And Taxa By State, James P. Smith Jr

Botanical Studies

No abstract provided.

An Annotated Checklist Of The Vascular Plants Of Oklahoma, James P. Smith Jr

Botanical Studies

No abstract provided.

Vascular Plants Of The Horse Mountain Serpentines Humboldt County, California, James P. Smith Jr, John O. Sawyer Jr.

Botanical Studies

No abstract provided.