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opencc-by-4.0Jul 2021View details →

Data: Metabolomic Approaches to Studying the Response to Drought Stress in Corn (Zea mays) Cobs

All data associated associated with the manuscript https://doi.org/10.3390/metabo11070438. Raw metabolomics data files (.Mzml) obtained on solariX FTICR and ms/ms spectral files (.raw) from Fusion orbitrap MS. zip file includes sample and folder descriptions.

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Banks grass mite (Acari: Tetranychidae) suppression may add to the benefit of drought-tolerant corn hybrids exposed to water-stress

Spider mite (Acari: Tetranychidae) outbreaks are common on corn grown in the arid West. Hot and dry conditions reduce mite development time, increase fecundity, and accelerate egg hatch. Climate change is predicted to increase drought incidents and produce more intense temperature patterns. Together, these environmental shifts may cause more frequent and severe spider mite infestations. Spider mite management is difficult as many commercially-available acaricides are ineffective due to the development of resistance traits in field mite populations. Therefore, alternative approaches to suppress outbreaks are critically needed. Drought-tolerant plant hybrids alleviate the challenges of growing crops in water-limited environments; yet, it is unclear if drought-tolerant hybrids exposed to water-stress affects mite outbreaks under these conditions. We conducted a greenhouse experiment to evaluate the effect of drought-tolerant corn hybrids on Banks grass mite, a primary pest of corn, under optimal irrigation and water-stress irrigation. This was followed by a 2-year field study investigating the effect of drought-tolerant corn hybrids exposed to the same irrigation treatments on Banks grass mite artificially infested on hybrids and resident spider mite populations. Results showed that water-stressed drought-tolerant hybrids had significantly lower Banks grass mite and resident spider mite populations than water-stressed drought-susceptible hybrids. Interestingly, water-stressed drought-tolerant hybrids had equal Banks grass mite populations to drought-susceptible and drought-tolerant hybrids under optimal irrigation. We posit that planting drought-tolerant hybrids may suppress spider mite outbreaks in water-challenged areas.

opencc-zeroOct 2021View details →

opencc-by-2.0Jun 2023View details →

Fitness and cold tolerance of Spodoptera frugiperda fed on corn and two winter crops(Original data)

Fall armyworm (FAW) Spodoptera frugiperda is a major migratory and polyphagous pest. Overwintering, migrating and colonizing characters of FAW are closely related to vegetation and host adaptation. In this study, oviposition preference, feeding preference, fitness and cold tolerance of FAW fed on spring & summer crop (corn) and two winter crops (cabbage, Brassica campestris and rape, B. napus). We observed that FAW could complete their life cycle by feeding cabbage and rape, although fitness was not as good as corn. FAW fed on cabbage had higher survival, pupal weight, and host suitability index than rape while larvae preferred to feed on rape leaves and females preferred to lay eggs on rape plants. In addition, FAW larvae fed on cabbage had the shortest recovery time from chill coma compared to corn and rape, indicating that cold tolerance of FAW larvae was improved by feeding on cabbage. Consequently, cabbage could be an ideal host for FAW which needed to survive and reproduction in winter. These results improve our understanding of host selection and adaption of FAW, as well as lay a foundation for the prediction of FAW overwintering.

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Cover crop and nitrogen rate management practices influence corn (Zea mays) NDVI and nitrogen content

Cover crops are rarely adopted in the northern Corn Belt because of short growing periods but could provide benefits when grown between wheat (Triticum aestivum L.) and corn (Zea mays L.). We evaluated corn NDVI (normalized difference vegetation index) and leaf N (at six leaf, ear leaf, 75% silk, and physiological maturity), over three growing seasons in response to factorial treatments of cover crop (annual ryegrass [Lolium perenne L. ssp. multiflorum (Lam.) Husnot], radish [Raphanus sativus L.], and no-cover control) and N rate (0X, 0.25X, 0.5X, and 1X) relative to the recommended rate based on pre-plant soil tests (157–190 kg N ha–1). Grain N was also measured in the last study year (2016) to evaluate if leaf N indicated grain N. Radish cover crop increased corn NDVI relative to the no-cover control, but annual ryegrass decreased NDVI relative to no-cover control. This response to cover crop treatment suggests that radish cover crop may improve corn nutritional status. Corn receiving 1X N rate had the slowest decrease in leaf N over the growing season, but 2016 data revealed that grain from all treatments receiving some level of N had similar N content. Root biomass was also highest in the 0.5X N rate treatment and could explain the previously reported result that 0.5X N rate results in highest corn yield. Taken together, these results suggest that half the recommended N fertilizer can be used with little effect on nutritional status of corn following spring wheat in the northern Corn belt.

opencc-zeroAug 2023View details →

Fig. 4 in Assessing the diversity of anthocyanin composition in various tissues of purple corn (Zea mays L.)

Fig. 4. Chromatograms of tissue extracts representing the diversity in maize pigment production. Compound identities correspond to Table 2.

Fig. 1 in Assessing the diversity of anthocyanin composition in various tissues of purple corn (Zea mays L.)

Fig. 1. Anthocyanin pigmentation in the various tissue types of pigmented maize. A) Genetic stock 320 N demonstrating the a3 phenotype. Husks, tassels, and leaf sheaths are intensely purple. B) Apache Red Cob (PI 213730) with weak leaf sheath, silk, and tassel pigmentation. C) Member of the Apache Red Cob × 320 N population demonstrating the a3 phenotype with intense leaf sheath, anther, husk, tassel, and silk pigmentation. D) Member of the Apache Red Cob × 320 N population with silk and anther pigmentation, but weak stalk and tassel pigmentation. E) Ear with the a3 phenotype and dark silks. F) Ear with dark silks and weak husk pigmentation. G) Typical a3 husk. H) Tassel with the a3 phenotype and dark anthers. I) Pigmented anther tissue. J) Purple corn. K) Purple cobs. L) Purple seedling. Photo Credit A–K UI Public Affairs: L. Brian Stauffer. (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)

Fig. 6 in Assessing the diversity of anthocyanin composition in various tissues of purple corn (Zea mays L.)

Fig. 6. Tristimulus color values for extracts representing the diversity in anthocyanin composition in maize tissues. Color squares are from representative extracts of clusters determined by Ward's Minimum Variance Method compared to cyanidin 3-glucoside (C3G), pelargonidin 3-glucoside (Pg3G), and FD&C Red No. 40. Each sample was adjusted to a pH of 1, 3, or 6 and normalized to 50 μg mL 1. (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)

Fig. 2 in Assessing the diversity of anthocyanin composition in various tissues of purple corn (Zea mays L.)

Fig. 2. Structure of the newly described anthocyanin cyanidin 3-6′′-phenylacetylglucoside with fragmentation patterns. The structure of cyanidin 3-6′′-phenylacetylglucoside is shown with molecule positions labeled. Ion fragmentation pattern by LC-MS/MS results in cyanidin. Spontaneous degradation of cyanidin 3-6′′- phenylacetylglucoside results in phenylacetic acid and cyanidin 3-glucoside.

Fig. 5 in Assessing the diversity of anthocyanin composition in various tissues of purple corn (Zea mays L.)

Fig. 5. Heatmap of the average proportion of each compound separated by cluster, Rows indicate compound identities in Table 2. The color of each compound is scaled according to the legend. (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)

Effects of Corn and Coconut Oils on Lipoprotein Lipids, Insulin Sensitivity and Inflammation

ClinicalTrials.gov study NCT03202654. IPD Sharing: Not stated. Countries: 1. Publications: 1.

Dose Response Oxidation of a Sweet-corn Derived Sugar (PhytoSpherix) During Exercise in Endurance Trained Athletes

ClinicalTrials.gov study NCT02909881. IPD Sharing: NO. Countries: 1. Publications: 1.

Effectiveness and Acceptability of Availing Skilled Birth Attendance (SBA) Services Through Community Reproductive Health Nurses (CORN) to a Household Level at Rural Communities of Ethiopia; A Cluster

ClinicalTrials.gov study NCT02501252. IPD Sharing: Not stated. Countries: 1. Publications: 15.

Corn and Heart Health Study

ClinicalTrials.gov study NCT03967990. IPD Sharing: NO. Countries: 1. Publications: 1.

A 3 Day In-use Assessment of the Scholl Corn Foam Cushions on Pain Levels Associated With Heloma Durum.

ClinicalTrials.gov study NCT04695873. IPD Sharing: NO. Countries: 1. Publications: 10.

Soluble Corn Fiber Supplementation for Asthma

ClinicalTrials.gov study NCT03673618. IPD Sharing: Not stated. Countries: 1. Publications: 1.

Soluble Corn Fiber on BMD in Pre-pubertal Boys and Girls (PREBONE-Kids)

ClinicalTrials.gov study NCT03864172. IPD Sharing: NO. Countries: 1. Publications: 1.

A Comparison of the Metabolic Effects of Fructose, Glucose, High Fructose Corn Syrup and Sucrose at Normal Population Consumed Levels in Adults Aged 20-60 Years Old

ClinicalTrials.gov study NCT01797042. IPD Sharing: Not stated. Countries: 1. Publications: 1.

A Study to Examine the Glycemic Response of Corn and Soy Tortillas in Healthy Individuals

ClinicalTrials.gov study NCT01828671. IPD Sharing: Not stated. Countries: 1. Publications: 2.

Soluble Corn Fiber for Promoting Executive Function Study

ClinicalTrials.gov study NCT05066425. IPD Sharing: NO. Countries: 1. Publications: 0.

The Effects of Soluble Corn Fiber on Gastrointestinal Tolerance and Fecal Microbiome in Healthy Children

ClinicalTrials.gov study NCT05213494. IPD Sharing: NO. Countries: 1. Publications: 13.