14 Questions 116 Answers 0 Followers
Questions related from J.D. Franco-Navarro
I am having a discussion with some lab colleagues who intend to dip the phmeter head in cosmetic cream, oils, and balms with oil and beeswax. I tell them that they will clog the semi-permeable...
29 July 2021 6,692 2 View
In 2016-2017 I was working with a strain of Agrobacterium tumefaciens, called EHA105 (agropine-type), that a guy from a lab in Portugal kindly sent me by mail, but the strain carried an incredibly...
15 March 2021 6,535 6 View
Xenopus laevis oocytes are used in electrophysiology to make transient expression of injected mRNA fragments. Through the technique of 2-electrodes voltage-clamp we can record the physiological...
12 January 2021 6,265 4 View
We want to do a test on skin using different cosmetics and I would like to know if there is any electronic equipment that determines the thickness of the skin or the percentage of fat and water...
31 May 2020 8,531 2 View
Tobacco plants were subjected to 3 different nutritional treatments (A, B, C) for 3 weeks, and also were treated under two irrigation regimes during 2 weeks (Well-watered plants or Control plants,...
02 October 2019 5,091 14 View
It is well known that Strawberry leaves contain high amounts of diverse phenolic compounds (Kårlund et al. 2014), and also polyphenolic compounds are known to interact with proteins and can...
16 October 2018 4,555 4 View
If a have a nutritional treatment that reduces the epidermal and stomatal density without changing the stomatal index (SI), and this nutritional treatment promotes bigger and thicker leaves... Why...
25 October 2016 7,431 4 View
It is known that phosphate at certain concentrations can precipitate iron, and now I'm planning a trial having a final concentration of 5 mM of phosphate and a final pH of 5.7. The final...
07 October 2016 1,702 3 View
Stomatal aperture assays in abaxial epidermal peelings of tobacco leaves were done as described in Allen et al. (1999) and He et al. (2013). Peelings were induced to close all stomata in dark...
03 October 2016 1,641 4 View
In seedlings it is important to verify that ozone does not cause damage, because plants are more sensitive to ozone in juvenile stages (Timonen et al., 2004). Ozone, applied diluted in water and...
01 January 1970 6,872 2 View
This is the scenario: 1) Irrigation water with a composition of ferric nitrate [Fe(NO3)3], ammonium nitrate [NH4NO3], ammonium nitrite [NH4NO2], ammonium nitride [(NH4)3N] and humic acid (full of...
01 January 1970 5,826 4 View
There are many immunological and PCR research about COVID-19, but I wonder if there are a relationship among COVID-positive and any blood parameter. There is information that put the target on...
01 January 1970 9,475 10 View
I wonder what can happen to a vegetable oil (for example, olive oil or sunflower oil), if instead of bubbling it with a source rich in oxygen (for example 10% nitrogen : 90% oxygen), we bubble it...
01 January 1970 9,199 7 View
The problem of the concept of INVASIVE EXOTIC SPECIES is in those species considered as such, which either do not have an invasive growth and propagation behaviour, or they are so naturalized and...
01 January 1970 7,868 33 View
