Plant Physiologist

The main motivation for forming the Plant Physiologist website is to create tools for scientists working in our field and related areas. | Born at 411 ppm

[Diego Marquez @DiegoMa_rquez]

@bioprotocolbyte paper. We present instructions for adapting two LI-6800 to simultaneously measure adaxial and abaxial gas exchange. We included details of the apparatus, scripts, and how to estimate the boundary layer conductance for this setup
@LICOR_ENV
https://t.co/wXEaO5Eo2z

[Plant Physiologist @P_Physiologist]

Release: StomaAI (SAI)

StomaAI (SAI) is a third-party app for auto-measuring stomatal density and pore features (width, length and area) from microscope images with human-level accuracy via deep computer vision.

https://t.co/yvx3vgEqL3

[Plant Physiologist @P_Physiologist]

@pepcanadell @prabir_patra It is really shocking.
Thanks for sharing.

Here a comparison in the last 850,000 years. The red dot is an arbitrary day in December 1980 for reference between graphs.

[Plant Physiologist @P_Physiologist]

Human activity has triggered an overwhelmingly rapid increase in the atmospheric [CO₂], noticeable in our lifetime, e.g. Darwin was born at 284 ppm, R. Franklin at 302 ppm and today we are at 419 ppm. What was the [CO₂] when you came into the World?

https://t.co/TVD8xFJKPz

[Susanne vonCaemmerer @SvonCaemmerer]

We are advertising a 2 year postdoctoral fellowship at the ANU node of C4 rice https://t.co/CpInF3KEKg

[Plant Physiologist @P_Physiologist]

@Lehmann_Lab @torresruizjm Very interested, I send you a message

[Plant Physiologist @P_Physiologist]

Release: Stomatal density repository

We are starting with a collection of 384 species. The repository is always growing and we welcome anyone sharing their published information. To include your data, contact us.

https://t.co/ADhfusj5ix

[Plant Physiologist @P_Physiologist]

@FXPicoMercader The idea is to generate a repository with multiple entries for the same species (references), including variations on growth conditions, environmental conditions, lab, field, etc. In practice, any publication containing stomatal density data.

[Plant Physiologist @P_Physiologist]

@ClaudioMonteza @odealab Were you discussing microscopy or stomatal density?

This picture is a section of the abaxial surfaces of a Capsicum annuum leaf.

[Plant Physiologist @P_Physiologist]

@keholsinger @nora_flora10 @KristenNolting @T_Marie_Wms We are happy to add more data to the repository. If anyone is interested in adding their information they can contact us on the web or via Twitter

[Plant Physiologist @P_Physiologist]

Update: Add-on MSF calculations for LI6800 version 1.1

Correction in the equation to calculate ws

https://t.co/4Qip2plCxs

[New Phytologist @NewPhyt]

"…they turn the standard method for calculating stomatal conductance and intercellular CO2 concentration from gas exchange measurements on its head."

Red light shines a path forward on leaf minimum conductance 👇
https://t.co/CuxWRONNVN

Commentary by @LucasCernusak @mdekauwe82

[Plant Physiologist @P_Physiologist]

Release of a self-developed add-on for LI6800. The add-on includes calculations of gas exchange parameters accounting for small fluxes as presented by Márquez, Stuart-Williams, and Farquhar (2021) (MSF).

Find it in: https://t.co/yvx3vgW1CB

[New Phytologist @NewPhyt]

Recently accepted in New Phyt 📖

🌱 @DiegoMa_rquez et al. #Leaf surface conductance https://t.co/dw85nl3flM

🌱Feng et al. Plant potassium uptake https://t.co/TNjCvlAYGB

🌱 @WernerMayerhofe et al. Ectomycorrhizal association with Fagus sylvatica https://t.co/mUSKYVnrEE

[Diego Marquez @DiegoMa_rquez]

Paper accepted in @NewPhyt. Our paper discusses the adaxial/abaxial cuticular conductance (gcw), presents a technique to estimate gcw and an app to help with the calculations (see @P_Physiologist)
@GrahamDFarquhar @FlorianABusch

@PlantSci_ANU @leaf2field

https://t.co/OMspGD5dPO

[Plant Physiologist @P_Physiologist]

Release of gcwCi web-app

The web-app gcwCi helps to estimate the cuticular conductance to water of a leaf surface using normal gas exchange parameters, requiring as an input a known CO2 concentration within the leaf (ci).

https://t.co/8OSKPJKowj