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Caleb Jasper

A Surprise find: Soybean waste can be fish feed - 0 views

www.anthropocenemagazine.org/...uld-be-the-future-of-fish-feed

HSR environmental statistical analysis biology potential research idea botany

shared by Caleb Jasper on 08 May 24 - No Cached
  • fish feed. The wastewater from soybean
  • processing can be converted into a nourishing, protein-rich food for farmed Asian sea bass, a team of scientists has discovered.
  • They worked with a local food processing company to rescue hundreds of liters of soybean wastewater, which they discovered was rich in two types of protein-accumulating microbes in particular, known as Acidipropionibacterium and Propioniciclava.
  • ...3 more annotations...
  • The sea bass that were fed the alternative microbe protein diet did have significantly lower weight to begin with, but that evened out as they grew. And, notably, the group that received the traditional feed diet had greater variability in their weight gain as they grew—whereas those fed the alternative microbe protein diet showed a more even accumulation of weight over the experiment’s course.
  • Meanwhile, the wastewater from other soybean uses goes unused—but according to the recent results, could feasibly tackle both of these sustainability challenges at once. Furthermore it’s not just soybean waste water, the researchers say: several agricultural processes create wastewater side streams that are rich in the combination of carbon, nitrogen, and phosphorus that’s needed to sustain a growing population of hungry, protein-accumulating bacteria.
  • Microbial community‐based protein from soybean‐processing wastewater as a sustainable alternative fish feed ingredient.
  • Caleb Jasper on 08 May 24
     
    Possible more efficient fish feed to reduce waste and benefit the environment as well as the economy.
Sean Nash

Add to the many afterlives of coffee grounds: Toxic cleanup - 0 views

www.anthropocenemagazine.org/...f-coffee-grounds-toxic-cleanup

coffee pollution toxins environment ecology toxicity bentazone pesticide HSR HSR-2025 potential research idea environmental botany science questions biology

shared by Sean Nash on 15 May 24 - No Cached
  • The experts selected onion plants to test out this idea, known for their high sensitivity to toxins in the environment. In beakers of water containing bentazone, they grew onion root tissue, called meristems, measuring its cell division and root growth as a sign of health. 
    • Sean Nash
      Sean Nash on 15 May 24
       
      One of the things I want VERY badly for our program... is a set of equipment for histology... where we can take things like onion root tips and lock samples in wax, slice them incredibly thin (microslices), and then be able to mount them onto slides for analysis.
Sean Nash

The Secret Language of Trees - YouTube - 0 views

www.youtube.com/watch

botany symbiosis fungi evolution cooperation competition plants roots video potential research idea biology environmental HSR-2025 HSR science language

shared by Sean Nash on 23 May 24 - No Cached
  • Sean Nash on 23 May 24
     
    The description of the experimental design toward the middle of this video... should be inspiring. Simple, yet complex. BOOM. So cool!
Sean Nash

Applied Sciences | Free Full-Text | Method for Prolonging the Shelf Life of Apples afte... - 1 views

www.mdpi.com/3975

agriculture apples fruit ripeness quality HSR HSR-2025 science botany biology potential research idea

shared by Sean Nash on 23 May 24 - No Cached
  • Sean Nash on 23 May 24
     
    (A pretty fancy piece of equipment is needed here, but I like the concept of this sort of project. Rigorous life science concepts, ability to generate a ton of data, super applicable to real life immediately, etc.)
Kylie John

Five Hormones that Control Plant Growth & Development - dummies - 2 views

www.dummies.com/...-signals-plant-hormones-241851

HSR-2025 environmental botany biology

shared by Kylie John on 13 May 24 - No Cached
  • Sean Nash on 13 May 24
     
    Just a SUPER basic overview of phytohormones. The + is that we can obtain ALL of these for use in pure form. The - is that you need to develop a unique question/experimental design.
Sean Nash

Model Organisms for Research - HSRTC - 2022 - Google Slides - 4 views

docs.google.com/...edit

potential research idea zoology HSR-2025 HSR science environmental botany biology

shared by Sean Nash on 07 May 24 - No Cached
  • Sean Nash on 07 May 24
     
    This is a slide deck I used for a presentation to research teachers in Washington D.C. last year. I will also save a link to the crowd-sourced document we created in this session where teachers too our suggested model organisms, and then added in their suggestions as well.
Sean Nash

Model Organisms - HSR 2025 - Google Docs - 3 views

docs.google.com/...edit

potential research idea zoology modelorganisms organisms research HSR-2025 HSR science environmental botany biology

shared by Sean Nash on 07 May 24 - No Cached
  • Sean Nash on 07 May 24
     
    This is a crowd-sourced document I created for a session with high school research teachers in Washington D.C. in 2022. SAVE this document and use it to explore some of the more commonly-used model organisms for all sorts of biological research. There is a TON to explore here!
Kylie John

Drought-induced injury is associated with hormonal alteration in Kentucky bluegrass - PMC - 0 views

www.ncbi.nlm.nih.gov/...PMC6768267

HSR-2025 HSR botany hormones lawngrass

shared by Kylie John on 20 Sep 24 - No Cached
  • Mature KBG (cv. ‘Wildhorse’) plugs (10 cm diameter, 5 cm deep)
  • The grass was transplanted into pots (15 cm diameter, 15 cm deep, with 8 holes on the bottom) filled with either top soil and sand mixture (2:1, v/v). A piece of plastic screen was placed in the bottom of the pot to prevent soil from leaching.
  • at optimum conditions (mean±SD) at 22 ± 0.8/16 ± 0.6°C (day/night), 70%±8% relative humidity, PAR at 400 ± 9 µmol m−2 s−1 and 12-h photoperiod. Nitrogen was applied at 2 g m−2 (from 28–8-18 complete fertilizer with micronutrients) at transplanting and then 1 g m−2 biweekly on all treatments until the end of the trial.
  • ...22 more annotations...
  • trimmed at 7 cm and irrigated two times a week to field capacity.
  • Six weeks after transplanting
  • For drought stress treatment, the amount of irrigation water was determined based on evapotranspiration (ET) loss by weighing the pots every other day and the irrigation was provided to compensate 30% to 50% ET loss. ET was determined by weighing the pots.
  • VWC was reduced from 34.6% to 27.9% between day 0 and day 7, from 27.9% to 23.4% between day 7 and day 14, from 23.4%% to 14.5% between day 14 to day 21, and from 14.5% to 5.1% between day 21 and day 28.
  • Leaf chlorophyll was extracted with acetone and measured using a spectrophotometer
  • Leaf photosynthetic rate and stomatal conductance were measured using a portable photosynthetic system
  • turf quality started to decline at day 7 due to drought stress.
  • Drought stress reduced turf quality rating by 14.8% relative to the control at the end of drought stress (28 d).
  • The electrolyte leakage increased gradually from day 7 through day 21 due to drought stress.
  • Drought stress increased electrolyte leakage by 35.6% at day 14, 95.7% at day 21, and 105.4% at day 28 when compared to the control.
  • chlorophyll began to decline after day 7 due to drought stress
  • educed chlorophyll content by 39.0% relative to the control.
  • photosynthetic rate due to drought stress was observed as early as day 7
  • Stomatal conductance decline was first observed at day 4 of drought stress
  • day 28 when drought stress reduced stomatal conductance by 84.4%
  • The ZR level declined gradually from day 14 through day 28 due to drought stress. Drought stress reduced ZR by 28.5% at day 14, 35.1% at day 21, and 59.1% at day 28 relative to the control.
  • 1 week after ZR did. At the end of drought stress (day 28), drought stress reduced iPA by 50.4% relative to the control.
  • Drought stress reduced leaf IAA by 14.3% and 26.7% at day 21 and day 28, respectively, when compared to the control.
  • The ABA started to accumulate after day 4 of drought stress and the difference between drought stress and the control was observed as early as 7 d of drought stress
  • The ABA content gradually increased from day 7 through day 28. Drought stress increased leaf ABA by 23.6% at day 7, 30.7% at day 14, 87.6% at day 21, and 108.5% at day 28 relative to the control.
  • drought stress did not impact leaf GA4 content
  • We found that ABA/CK increased sharply from day 14 through day 28 due to increase in ABA and decline in CK (ZR + iPA) during the same period. At the end of trial (day 28), drought stress induced an increase in leaf ABA/CK ratio by 3.4-fold relative to the control.
Sean Nash

What the Heck Is Seaweed Mining? | Hakai Magazine - 6 views

hakaimagazine.com/...hat-the-heck-is-seaweed-mining

remediation minerals rareearthelements seaweed mining geology ecology environment science Hakai kelp reclamation magazine HSR-2025 HSR environmental questions chemistry biology potential research idea botany

shared by Sean Nash on 29 Apr 24 - No Cached
  • “It’s pure chemistry,” Umanzor says. “Positive with negative, and then it just collects.”
    • Sean Nash
      Sean Nash on 03 May 24
       
      For those interested in chamistry topics, this looks really interesting.
emmarrogers

Frequent mowing puts poisonous weed into survival mode | ScienceDaily - 1 views

www.sciencedaily.com/...240603195751.htm

HSR HSR-2025 behavior biology environmental potential research idea botany

shared by emmarrogers on 04 Jun 24 - No Cached
  • The taproot went down further
  • More spikes popped out on the stem
  • The flowers became more toxic
  • ...8 more annotations...
  • Although studies have often highlighted weed fitness and defense traits resulting from disturbances like mowing, most were limited to foliar, or leaf, defenses, Kariyat said. That changed when Vasquez and fellow master's biology students at the University of Texas Rio Grande Valley monitored fields of mowed, unmowed and frequently mowed silverleaf nightshade in and around Edinburg, Texas.
  • "Alejandro's question was, 'how do these flowers differ between mowed and unmowed plants?'"
  • "You are trying to mow these plants so that the plants are getting eliminated," Kariyat said. "But what you are actually doing here, you are making them much worse, much stronger."
  • The observations of mowed, unmowed and frequently mowed areas with silverleaf nightshade provide evidence that could prompt further studies by weed scientists on best management practices, Kariyat said.
    • Sean Nash
      Sean Nash on 04 Jun 24
       
      Again... when you see a callout like this for more research in an area... especially one that might be feasible with some serious planning/organization... you might be on to something.
  • the study does provide more insight into the defensive capabilities of plants pitted against human disturbance
  • "Continuous mowing differentially affects floral defenses in the noxious and invasive weed Solanum elaeagnifolium in its native range."
  • Journal Reference: Alejandro Vasquez, Alexa Alaniz, Robert Dearth, Rupesh Kariyat. Continuous mowing differentially affects floral defenses in the noxious and invasive weed Solanum elaeagnifolium in its native range. Scientific Reports, 2024; 14 (1) DOI: 10.1038/s41598-024-58672-w
  • Solanum ptychanthum or black nightshade, and Solanum carolinense, or Carolina horsenettle, also produce toxic berries and are native to Arkansas.
    • emmarrogers
      emmarrogers on 04 Jun 24
       
      Could we possibly research different types of weeds similar to the silver Nightshade, like one of these plants?
  • Sean Nash on 04 Jun 24
     
    There is a TON of data that can be measured & analyzed in a study like this. Easier to do in a less time-dependent way in the lab, but easier and more realistic (in vivo) to do if you have access to similar fields that are mowed and unmowed to differing extents. So many variables to examine and consider here for how plants may change physiologically based upon how we interact with them. This goes beyond that analogy I always use for fast evolution in Honors Biology: how dandelion populations become shorter based upon frequent mowing. This gets into the physiological responses. Very cool methinks.
Sean Nash

A new study reveals that marine cyanobacteria communicate - 0 views

www.sciencedaily.com/...240606152330.htm

algae cyanobacteria communication marine oceans marinebiology nanotubules proteins HSR HSR-2025 science environmental botany questions biology

shared by Sean Nash on 07 Jun 24 - No Cached
  • Sean Nash on 07 Jun 24
     
    Adding this one less as feasible study inspiration, and more of... this is a huge finding about the most important organisms on the planet as a whole. The more we search, the more we find that organisms communicate. Cooperate even. Trees in a healthy forest communicate and cooperate. And now this. So cool...
emmarrogers

Groundbreaking Discovery: How Zinc Could Change Farming Forever - 0 views

scitechdaily.com/c-could-change-farming-forever

biology environmental botany questions HSR-2025 HSR science potential research idea

shared by emmarrogers on 02 Jul 24 - No Cached
Sean Nash liked it
  • Sean Nash on 03 Jul 24
     
    I saw this one. It is definitely interesting.
emmarrogers

Microscopic fungi enhance soil carbon storage in new landscapes created by shrinking Ar... - 1 views

phys.org/...fungi-soil-carbon-storage.html

biology environmental botany questions HSR-2025 HSR science potential research idea

shared by emmarrogers on 02 Jul 24 - No Cached
Sean Nash liked it
  • Sean Nash on 03 Jul 24
     
    Fungi as a soil conditioner is an interesting topic. This is something Eli Jenkins was looking into last year, although his attempts at growing the plants he wanted (he got started very late) kept him from really testing the product he wanted to test. I have also seen other commercial soil treatments meant to break down clay soils and keep water from pooling at the top of the soil.
Kylie John

Desiccation sensitivity and tolerance in the moss Physcomitrella patens: assessing limi... - 0 views

link.springer.com/...s10725-010-9490-9

HSR hormones botany HSR-2025 environmental

shared by Kylie John on 25 Nov 24 - No Cached
  • Samples were swirled at low speed (40 rpm) on an orbital shaker for 15 min
  • Kylie John on 25 Nov 24
     
    "electrolyte"
Sean Nash

Wild plants and crops don't make great neighbors | UCR News | UC Riverside - 0 views

news.ucr.edu/...rops-dont-make-great-neighbors

crops disease native non-native plants botany agriculture plantpathology pathology HSR HSR-2025 potential research idea science environmental questions biology

shared by Sean Nash on 16 Jul 24 - No Cached
  • Sean Nash on 16 Jul 24
     
    There are plenty of things about this study that are not so feasible for us at the moment, but... this general area: plant pathology, interactions between native and non-native plants & crops... is a very cool area to explore that would present some feasibility for us.
Sean Nash

Are plants intelligent? It depends on the definition | ScienceDaily - 1 views

www.sciencedaily.com/...240612113314.htm

plants science HSR-2025 HSR environmental botany biology potential research idea behavioralscience

shared by Sean Nash on 15 Jun 24 - No Cached
  • When leaf beetle larvae eat goldenrod leaves, the plant emits a chemical that informs the insect that the plant is damaged and is a poor source of food. These airborne chemicals, called volatile organic compounds (VOCs), are also picked up by neighboring goldenrod plants, prompting them to produce their own defenses against the beetle larvae. In this way, goldenrod move herbivores on to neighbors, and distribute damage.
    • Sean Nash
      Sean Nash on 15 Jun 24
       
      Are these VOCs (volatile organic compounds) detectable by us? If not detectable, they can we identify them... and then produce or purchase those chemicals to test their effects on plant responses?
  • start producing defensive compounds that help the plants fight off insect pests.
    • Sean Nash
      Sean Nash on 15 Jun 24
       
      It seems to me that I remember hydrogen peroxide being one of these signaling chemicals (at least from one part of a plant to another).
  • When no neighbors are present, the plants don't resort to accelerated growth when eaten and the chemical responses to herbivores are markedly different, though they still tolerate quite high amounts of herbivory.
  • ...5 more annotations...
  • Neighboring goldenrod also exhibit intelligence when they perceive VOCs that signal the presence of a pest. "The volatile emission coming from a neighbor is predictive of future herbivory," Kessler said. "They can use an environmental cue to predict a future situation, and then act on that."
  • Applying the concept of intelligence to plants can inspire fresh hypotheses about the mechanisms and functions of plant chemical communication, while also shifting people's thinking about what intelligence really means, Kessler said.
  • "What that means is, the brain in the plant is the entire plant without the need of central coordination," Kessler said.
  • "They can smell out their environment very precisely; every single cell can do it, as far as we know,"
  • André Kessler, Michael B. Mueller. Induced resistance to herbivory and the intelligent plant. Plant Signaling & Behavior, 2024; 19 (1) DOI: 10.1080/15592324.2024.2345985
  • Sean Nash on 15 Jun 24
     
    "When goldenrod is eaten by herbivores, it adapts its response based on whether or not another plant is nearby."
Kylie John

The Unexpected Villain in Plant-Based Diets - 3 views

scitechdaily.com/d-villain-in-plant-based-diets

HSR HSR-2025 botany diet

shared by Kylie John on 17 Jun 24 - No Cached
Sean Nash liked it
  • Sean Nash on 01 Jul 24
     
    Love this topic... but it would be a tough one. Look up "ISEF rules - vertebrate animals" to get an idea of how hard it is to get an vertebrate animal study approved where you are altering a diet in a way that includes feeding something suspected of having issues to animals. It isn't impossible, but it is very difficult. Often, we just shift down to an invertebrate animal. However, in this case, I don't think the variable of processed plant dietary items would transfer as well to non-vertebrate animals. And yet, I could be convinced otherwise if you can show me some other work done that says we might be able to gain worthwhile information from a study like that.
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