We have updated the Documentation and redesigned the Help Center. Please visit help.photosynq.org to see what has changed.
We are trying to make the Help Center for PhotosynQ more accessible and provide detailed information on how to use the platform and instruments. This is an ongoing process, as we are trying to document updates to the platform, the mobile and desktop applications as well as including questions you are sending us on various topics. For that reason we have moved the documentation to a new location that will allow faster release cycles.
We are still testing, but soon we will link the documentation everywhere on PhotosynQ. Please go ahead, take a look and let us know what you think.
With this new release we would also like to remind you, that it is possible to make contributions to the documentation and help us improve it as well as help others.
Common bean (Phaseolus vulgaris L.) is a nutritious crop grown around the world, a staple that provides high levels of protein and iron in the diets of Central and South Americans and East Africans. Heat stress negatively affects common bean seed yields and prevents cultivation in certain areas. Furthermore, under field conditions, heat stress often coincides with and exacerbates drought stress effects. Breeding more heat-tolerant cultivars would stabilize seed yield and open new regions to field production. To support these efforts, we examined a variety of methods for screening large numbers of bean germplasm exposed to heat stress at the vegetative growth stage as opposed to the reproductive stage, which would prolong the screening process. Tepary bean (P. acutifolius A. Gray), a closely related species to common bean, was used as a heat-stress-tolerant check. Plants exposed to day/night temperatures of 45/36°C for 2 d showed measurable signs of heat stress, but tepary bean outperformed the common beans on all stress tolerance measures. Gas exchange, chlorophyll fluorescence, and oxidative stress were only affected by this high temperature and not by temperatures below 45/36°C. Heat stress measurements also correlated well with visual signs of leaf tissue damage. Gradually raising temperatures was useful for screening large number of entries for heat tolerance, but this heat tolerance was only partially related to drought tolerance in the field. Plant breeders can use some of these methods to supplement field data and to further characterize the stress tolerance of bean lines.
More PhotosynQ related publications are available here
DOTAP, a lipidic transfection reagent, triggers Arabidopsis plant defense responses
Carolina Grandellis, Betiana S. Garavaglia, Natalia Gottig, Caroline Lonez, Jean-Marie Ruysschaert, Jorgelina Ottado
DOTAP is a cationic lipid widely used as a liposomal transfection reagent and it has recently been identified as a strong activator of the innate immune system in animal cells. Plants are sessile organisms and unlike mammals, that have innate and acquired immunity, plants possess only innate immunity. A key feature of plant immunity is the ability to sense potentially dangerous signals, as it is the case for microbe-associated, pathogen-associated or damage-associated molecular patterns and by doing so, trigger an active defense response to cope with the perturbing stimulus. Here, we evaluated the effect of DOTAP in plant basal innate immunity. An initial plant defense response was induced by the cationic lipid DOTAP in the model plant Arabidopsis thaliana, assessed by callose deposition, reactive oxygen species production, and plant cell death. In addition, a proteomic analysis revealed that these responses are mirrored by changes in the plant proteome, such as up-regulation of proteins related to defense responses, including proteins involved in photorespiration, cysteine and oxylipin synthesis, and oxidative stress response; and down-regulation of enzymes related to photosynthesis. Furthermore, DOTAP was able to prime the defense response for later pathogenic challenges as in the case of the virulent bacterial pathogen Pseudomonas syringae pv. tomato. Disease outcome was diminished in DOTAP-pre-treated leaves and bacterial growth was reduced 100 times compared to mock leaves. Therefore, DOTAP may be considered a good candidate as an elicitor for the study of plant immunity.
More PhotosynQ related publications are available here
We are releasing a new version of the Desktop App which will replace the current one for the Google Chrome Browser (Chrome App). The reason is a discontinued support for Chrome Apps on Windows and MacOS (see below). So please go to https://photosynq.org/software to check out the new Desktop App. If you have any issues, please let us know and write to email@example.com.
First and foremost we tried to make the new app work in the same way as the old one, so you can immediately feel comfortable using it. Further, we have fixed issues, improved the workflow, added compatibility and better support with the latest Firmware and added some new features.
QR codes and barcodes can now be scanned with a webcam to answer questions
More and better keyboard shortcut support
Drag ‘n drop for images
Images can be previewed inside the app
More native look and feel depending on the OS you are using
Faster search inside the app
Instrument Settings available through the app
The instrument console has been moved to a separate window
Instead of tags, measurements in the notebook are now sorted by name and experiment
Ctrl/Cmd+Space will bring up Commands and Hardware configurations in the Protocol Editor (advanced view)
Code folding and code can be displayed more compact
Hover over commands to get a description of their function
Search and replace, search hits are highlighted along the scrollbar
The Macro Editor supports protocol sets introduced with the last firmware update (1.23 or later)
Non linear fit for exponential decay
New functions to access parameters in protocol sets
Search and replace, search hits are highlighted along the scrollbar
Installation & Updates
An executable one click installer for Windows
Drag ‘n drop installation from a disk image on MacOS
Updates will be automatically downloaded and installed
What will Change
There are only minor changes for you as a user. Instead of the Chrome Store, now you have to download the new Desktop App from our website (https://photosynq.org/software). Updates are downloaded automatically and you only have to confirm installing the update.
Making the Transition
The transition to the new app will be easy. After you installed the app, just sign in with your PhotosynQ account and all your Projects, Protocols and Macros will be synchronized. No need to do anything else. In case you have measurements saved in your Notebook, you can transfer them following these steps:
Open your old app and select the Notebook from the side bar.
Select all the measurements you want to keep and select Export from the Action menu.
Open the new app and select File->Import Notebook… from the menu.
Select the file you just exported and click on open to import all measurements.
And… you are done!
Windows, Mac and Linux Support
If you are using Windows, you just download the app and execute the installer. It will automatically install the app and add a shortcut to your desktop. Updates will be automatically downloaded and installed. If you are using Windows 7 or 8, you have to download and run the Windows serial installer to connect an instrument, if you haven’t already done it.
If you are using a Mac, just download the app, open the disk image and drag ‘n drop the app into your applications folder. Updates will be automatically downloaded and installed.
The Linux version is currently at an early developing stage. If you are interested in helping us by testing the app, please drop us a line (firstname.lastname@example.org). Due to the framework we are only providing installers for Debian based distributions like Ubuntu.
The great features of Chrome Apps were amongst others, their small size (about 3mb), the easy way of installing them, the sandbox they were running in and the automatic updates and push notifications.
So, why exactly do we abandon the existing app?
A while ago, Google announced, that Chrome Apps in their current form will be discontinued by mid 2018 for Windows, MacOS and Linux and will only kept for ChromeOS. Nevertheless, Chrome extensions will remain available. Those are pretty similar to apps, yet they have one big issue, they don’t have all the APIs available that we need and as a consequence don’t allow communication with serial devices. This means, that we will no longer be able to use Google Chrome apps / extensions to take measurements with PhotosynQ instruments like the MultispeQ.
We are excited to announce that the PhotosynQ Community has collected over one million measurements, since the first one was taken and saved to the cloud in April 2014.
The PhotosynQ community has been busy over the last 4 years, producing not only an amazing amount of projects and measurements, but has also published data in several peer-reviewed journals (find a list here) already.
It all started here at Michigan State University, but we can now truly say, that this project has grown into a global community.
We are so proud of the community, their contributions and we are truly excited about the future!
Now you can save and share your analysis as sessions or download your data as a spreadsheet.
The data viewer on PhotosynQ is the tool to analyze your collected data. You can filter the data set and create sub-sets (Series), you can Plot parameters in various ways, view the data on a map based of the geo-location attached to each measurement, do simple statistics, or dive into every value using the spreadsheet. We are introducing a few new functions, we hope you will give you a better experience.
Now you can save your results as sessions when analyzing the data. Every session will save your current dashboard, plot, map, filter settings/series and thresholds. They are a great way of saving interesting observations, compare different filters, thresholds, without having to repeat all the steps to get there.
Sharing a Session
When you save a session, you will notice a checkbox labeled shareable, making the session available to others when checked. After you saved your session, just click on the copy button in the list of available sessions, to save the link to your clipboard. Use the link, to share your findings with collaborators, in the forums or for presenting them in the Project results section. You can also un-share the session at any time. The link will still be pointing to the Project’s data, but your session is no longer available. In case you make up your mind, just re-share it and the link works again.
When you have been been analyzing your data, you might have noticed, that the filters and thresholds you were applying got saved and re-applied the next time you opened the dataset. This was only saved locally, so opening your project on a different computer, would mean you have to start all over again. Now it gets saved to the cloud, so you can continue working where you have left off, even when you are using different computer.
We developed the Data Viewer so you can analyze the measurements you have collected for a project, online. But we do understand, that downloading the data and using it in spreadsheets like Excel, Origin or others can be necessary. To this point, we have offered libraries for Python and R to get data from PhotosynQ into an easy to use format to work with. Now we also offer a download* of the data in a spreadsheet (xlsx) or in the JSON format right from the project page.
Yet, we strongly recommend you view your data using the data viewer, since there you can flag measurements that were not taken correctly, you can look at raw traces, etc. That way you can ensure the best data quality, when it comes to your final analysis.
*The downloads are only available for the project lead and project collaborators
Statistics – Summary
The data viewer is offering simple statistic functions as well as a summery for a selected parameter. The histogram in the summary has been extended and is showing now the normal distribution for the sample as well.
Please be aware, that all functions are currently at a beta stadium, so you might experience some issues and the functionality might be different in the final version.