What is the white grains on the leaves, wax secretion?

09 September 2018 0 3K Report

Hello,

I saw many white grains on the leaves of my Hibiscus plants in the green house. Does any people know what is it? It doesn't look like any insects' egg. And it can't dissolve in water. Wax?

Zha

Badges
Science topic

More H.G. Zha's questions See All

Where to buy ‘Curdlan-Remazol Brilliant Blue (CM-Curdlan-RBB)“?

Hello, Does anyone know where to buy the ‘Curdlan-Remazol Brilliant Blue (CM-Curdlan-RBB)“ for beta 1,3-glucanase activity assay? It looks had been offered by "Loewe Biochemica GmbH", but I...

01 February 2020 5,623 3 View

Why did I get negative peaks in HPLC with a UV detector and a SEC column?

Hello, Today, when I analyzed my nectar sample (containing plant secondary metabolites, amino acids and proteins) using a HPLC with a UV detector (220nm) and a SEC column, NaOAC buffer as mobile...

11 December 2019 6,974 9 View

How to isolate peptides from sugar solution?

Dear all, I try to isolate peptide (MW less than 3000Da ) from sugar solution (sugar concentration ~30%). The concentration of the peptide might be very low, but it is ok if the isolated peptides...

31 December 2018 4,409 3 View

Is it possible that L-gulonolactone oxidase diminish hydrogen peroxide by using ascorbate and produce L-gulono-1,4-lactone and oxygen?

Dear Colleagues We know that L-gulonolactone oxidase catalyzes the reaction of L-gulono-1,4-lactone with oxygen to L-xylo-hex-3-gulonolactone and hydrogen peroxide. Is this reaction reversible? Or...

04 May 2017 3,669 0 View

How to purify FAD-dependent enzyme?

Dear Colleagues I am trying to purify a FAD-binding protein. Is there a reliable method I can use to purity such proteins? Best Zha

03 April 2017 5,253 9 View

How to quantify FAD in biological samples?

Dear Colleagues, I am looking for a method that could be used to measure FAD concentration (Flavin adenine dinucleotide) in biological samples, such as nectar or plant bleeding sap. Hope any...

02 March 2017 5,168 2 View

Why are monocots and dicots mixed in the phylogeny tree?

Dear colleagues, My colleague and I cloned a gene from sword bean which is mainly expressed in flower. After I did blast using the protein's amino acid sequence, I found there are just 250...

04 May 2016 3,211 10 View

Please help to identify this plant.

Please help to identify this plant. I found it in a green house. A species from Liliaceae, but not sure about the exact name. Please help to identify it.

03 April 2016 3,470 10 View

How many times can Tenax TA column be used for floral scent analysis?

I am using Tenax TA (0.1g per column) as adsorbent for my floral scent analysis. I bought Tenax TA from Sigma, prepare the column by myself and preform the experiment as suggested by Raguso et al...

10 November 2014 3,030 3 View

Can someone help with identifying this beetle (see attached)?

Can anyone help with identifying this beetle? It is less than 0.5 cm long. The photo was taken in China.

08 September 2014 2,835 8 View

How do soil microflora interact with plant roots and influence plant nutrition, health, and productivity?

06 August 2024 9,618 3 View

What is the role of oxidative stress in toxin-induced carcinogenesis?

What is the role of oxidative stress in toxin-induced carcinogenesis? I am currently researching the impact of environmental toxins on children's health and would greatly appreciate insights from...

02 August 2024 3,174 1 View

How do soil microbes affect plant health and productivity and how do plants interact with soil microorganisms and contribute to soil fertility?

31 July 2024 5,087 4 View

What is the role of decomposers in the cycling of matter in the biosphere and role do soil microbes play in plant nutrition availability and uptake?

31 July 2024 7,921 5 View

How microorganisms are important for maintaining of healthy soil and biodiversity and microorganisms and plant roots contribute to soil formation?

31 July 2024 8,939 5 View

How can biogenic synthesis techniques be applied to develop plants capable of extracting and processing heavy metals from contaminated soil, and wha?

Understand how to utilize biosynthesis to develop natural and sustainable solutions to address heavy metal pollution and improve environmental and agricultural conditions.

26 July 2024 1,469 1 View

Could GSH level be more in CCL4 rats than negative control rats?

i compare between the antioxidant and oxidative stress level between negative control rats (saline) and CCL4 intoxicated rats. i found the level of GSH and TAC is more in toxic group than normal....

26 July 2024 1,887 0 View

Can we eliminate the stress singularity at the tip of the crack by manipulating the elastic constants?

The aim of the research here is to prevent the propagation of the crack in the fabricated elastic medium with useful applications.

25 July 2024 9,976 3 View

Can I separate xylene from paraffin after deparaffinization of microtome samples and reuse the xylene?

...

24 July 2024 1,559 1 View

How can I calculate the SOD enzymatic activities using the spectrophotometer method?

I have to quantify the enzymatic activities of SOD in plants using a method that employs hypoxanthine-xanthine oxidase to create O2. The colorimetric reaction was performed by combining...

23 July 2024 8,492 3 View