top of page

Recent Publications

Click here for a complete list of publications.

To obtain pdf copies of any of the publications either follow the indicated links or contact Dr. Geitmann.

Screen Shot 2021-11-17 at 9.58_edited.jpg
Tracheid cropped web lr.jpeg
Plant Cell Walls - Research Milestones and Conceptual Insights
 
Geitmann A (2024) CRC Press (Taylor & Francis), 544 pages, in press

 

The history and state of the art of plant cell wall research.
70 authors, 25 chapters.

Use the code ESA33 to obtain 20% discount.

PMEpaper.jpg
Strength in numbers - An isoform variety of homogalacturonan-modifying enzymes may contribute to pollen tube fitness
Kamel H, Geitmann A (2023) Plant Physiology doi.org/10.1093/plphys/kiad544

 

Pollen tube growth involves extremely rapid assembly of new cell wall. The delivery, assembly, and modification of polysaccharides ensures cell shape maintenance. This update explores how the multitude of cell wall modifying enzymes might tune the process.

Screen Shot 2023-09-02 at 12.15.04 PM.png
Pectate lyase-like lubricates the male gametophyte's path toward its mating partner
Chebli Y, Geitmann A (2023) Plant Physiology doi.org/10.1093/plphys/kiad481

 

To deliver their cargo, pollen tubes must invade the tissues of the flower pistil to reach a receptive ovule. We found that the pollen tube secretes a pectate lyase-like protein that may aid the tube by digesting the apoplast of the transmitting tissue.

ChatGPT-plantblindness3.png
Plant blindness and diversity in
AI language models

 
Geitmann A, Bidhendi AJ (2023) Trends in Plant Science doi.org/10.1016/j.tplants.2023.06.016

 

Does ChatGPT know that plants are biological organisms? We wanted to find out and scored the bot's answers to our queries on our highly scientific plant blindness barometer. Read the piece to see what this means for the scientific community.

Esau web site.png
Seeing clearly – Plant anatomy through Katherine Esau’s microscopy lens
 
Geitmann A (2023) Journal of Microscopy 291: 92-104

 

Katherine Esau was a phenomenal plant anatomist and her books are still used today, 70 years after their first publication. In this homage her beautiful drawings are placed side-by-side with modern micrographs highlighting recent progress in plant imaging.

Semi-in-vivo 1D.jpg
Pollen tube invasive growth is promoted by callose
 
Karuna K, Geitmann A (2023) Plant Reproduction 36: 157-171

 

Pollen tubes, the delivery tool for the sperm cells in plants, are enriched in the cell wall component callose. This distinguishes them from most other plant cells. We investigated how callose supports the particular needs of the pollen tube: rapid and invasive growth.

Mimosa-long ed.jpeg
Multiscale structural anisotropy steers plant organ actuation
 
Sleboda DAS, Geitmann A, Sharif-Naeini R (2023) Current Biology 33: 639–646

 

Plants move - sometimes astonishingly fast. We found out our differentials in hydrostatic pressure are converted to efficient leaf actuation through multiscale anisotropic stiffening in the pulvinus of Mimosa pudica.

physics-redremoved ed.jpeg
3D Visualization of microtubules in epidermal pavement cells
 
Bidhendi AJ, Altartouri B, Geitmann A (2022) In: Hussey PJ, Wang P (eds), The Plant Cytoskeleton: Methods and Protocols, Series Methods in Molecular Biology, Springer, vol. 2604
Methods, tips and tricks to successfully label and image microtubules in plant cells.
trichome.png
Cannabis glandular trichomes: a cellular metabolite factory
 
Tanney CAS, Backer R, Geitmann A, Smith DL (2021) Frontiers in Plant Science 12:721986

 

Cannabis trichomes produce and enrich compounds including cannabinoids such as tetrahydro-cannabinolic acid. In this review we summarize the current understanding of glandular trichome function in cannabis and outline future research directions.

Mimosafolding.png
Mechanosensitive ion channels contribute to mechanically evoked rapid leaflet movement in Mimosa pudica
Tran D,  Petitjean H,  Chebli Y,  Geitmann A, Sharif-Naeini R (2021) Plant Physiology, 187: 1705-1712

 

Mimosa is able to rapidly fold its leaves upon a mechanical trigger. We investigated the mechanism allowing the plant to perceive mechanical triggers and found a mechanosensitive ion channel to be involved. Highlighted in a News and Views Editorial.

Mycorrhizae.png
Invasive processes in the life cycle of plants and fungi
 
Kapoor K, Geitmann A (2023) In: Jensen K, Forterre Y (eds) Soft Matter in Plants: From Biophysics to Biomimetics. Royal Society of Chemistry , 203-226

Plant cells such as pollen tubes, root hairs and fibers have the ability to invade substrates. Plants are also subject to invasion, for example by fungal hyphae. This review discusses the physics of the invasion process, the biological purpose and the underlying mechanism.

IMG_6694 ed.jpeg
Microfluidics-based bioassays and imaging of plant cells
 
Yanagisawa N, Kozgunova E, Grossmann G, Geitmann A, Higashiyama T (2021) Plant and Cell Physiology, doi.org/10.1093/pcp/pcab067
 

The past decade has shown rapid adoption of microfluidics and MEMS-technology for research on tip growing cells. This article provides an overview of the nifty experimental designs and the challenges associated with this approach.

GraphAb.png
Cytoskeletal regulation of primary plant cell wall assembly
 
Chebli Y, Bidhendi AJ, Kapoor K, Geitmann A. (2021) Current Biology 31: R681-R695

 

The plant cell wall is assembled upon cell division and growth. The regulation of the delivery of cell wall components and of the assembly process proper relies with the cytoskeleton. In this review we summarize how this happens

Bidhendi & Geitmann 2020.jpg
Live imaging of cellulose and pectin in walls of growing plant cells
 
Bidhendi AJ, Chebli Y, Geitmann A. (2021) Bulletin of the Microscopical Society of Canada 47(1): 14-17
 

Labeling polysaccharides in the living plant without interference with development and morphogenesis requires carefully adapted techniques. A summary of methods is provided in this Conference Proceeding, related to a full paper published in J Microscopy.

hairgrowthabstract.png
Biomechanics of hair fibre growth:
a multi-scale modeling approach

 
Zamil MS, Harland DP, Fisher BK, Davis MG, Schwartz JR, Geitmann A. (2021) Journal of the Mechanics and Physics of Solids 148: 104290

We used finite element modeling to simulate the hair growth process and identify the forces that enables follicles to push the growing hair outside of the skin. We identified the structures that enable a hair fibre to emerge from the skin. More...

Click here for a complete list of publications.

To obtain pdf copies of any of the publications either follow the indicated links or contact Dr. Geitmann.

bottom of page