Applications of Micro-CT for Pinecones and Conifers

To better understand the functions of coniifers and pinecones, micro-CT is increasingly used to analyze their internal structure and to efficiently monitor the morphology of pinecones as they are altered by their external environment. Micro-CT is used with pinecones for tree breeding studies to confirm when pollination and fertilization occurred and to assess seed viability. Pinecones in particular are studied due to the flexible nature of their outer scale movement with changes in humidity. Scientists also investigate pinecone fossils for documented evidence of water-driven opening and closing motions in coalified conifer cones, study conifer tree rings for climatological purposes, explore soft-rot decayed conifer wood in 3D, and more.

Longitudinal sectional μCT image of Pinus sylvestris fossil cone, indicating low levels of mineralization inside most of the pinecone tissue and a few strongly absorbing, mineralized spots located mainly on the outside of the samples. Poppinga, S., Nestle, N., Šandor, A. et al. Hygroscopic motions of fossil conifer cones. Sci Rep 7, 40302 (2017).

Hygroscopic motions of fossil conifer cones

Conifer cones represent natural, woody structures that open and close their scales as passive responses to changes in humidity. This study looks at water-driven opening and closing in “coalified conifer cones from the Eemian Interglacial (approx. 126,000–113,000 years BP) and from the Middle Miocene (approx. 16.5 to 11.5 million years BP). These cones represent by far the oldest documented evidence of plant parts showing full functionality of such passive hydraulically actuated motion”. The functionality is more than the biological purpose of seed dispersal and protection and is due to a low level of mineralization of the fossils. “Our analysis emphasizes the functional-morphological integrity of these biological compliant mechanisms which, in addition to their biological fascination, are potentially also role models for resilient and maintenance-free biomimetic applications (e.g., adaptive and autonomously moving structures including passive hydraulic actuators)”.

READ MORE

…………………………………………………………………………………………………………………

Functional Principles of Morphological and Anatomical Structures in Pinecones

This study analyzed the anatomical and morphological features of internal and external pinecones to investigate comprehensive structural characteristics that may help develop ways of delivering new technology from their hygroscopic functions. Researchers measured the opening and closing angles of cone scales using micro-CT. Additionally, they investigated the pores on the surface of cone scales to better understand moisture absorption and dehumidification in pinecones to indirectly determine water absorption ability.

READ MORE

…………………………………………………………………………………………………………………

Three-Dimensional Exploration of Soft-Rot Decayed Conifer and Angiosperm Wood by X-Ray Micro-Computed Tomography

The decomposed structure of conifer and angiosperm wood after colonization by soft rot fungi was investigated by the use of micro-CT in this study. There were challenges in visualization because of a decreased grayscale contrast, or X-ray density, of the degraded wood but the researchers were able to image “fungal-induced cell deformations in earlywood and cavities in the thick wall of latewood cells” in 3D. Unlike the organic wood material, the higher X-ray density of inorganic deposits was easier to image.

READ MORE

………………………………………………………………………………………………………………

X-ray imaging and computed tomography of conifer tree rings for climatological purposes

Tree rings are a known  indicator of climatic changes, utilizing the number and width of tree rings;  structure (pattern); and wood density as the main dendrometric  characteristics. “The research aimed to develop a technique to assess the structure and density of tree rings of trunk wood using a high resolution scanning X-ray tomograph   to solve dendroclimatology and biometeorology related problems”. The study demonstrated that micro-CT is valuable for the investigation of wood fine structure and precise measurement of the width and density of  tree  rings without destroying the wood samples.  

READ MORE

………………………………………………………………………………………………………………

Related Articles:

Continuous Rotation Micro-CT Imaging of a Pinecone

Related Products

Related Articles

Coming Soon:

Customer access to tips and instructional videos, method notes, tutorials, application notes, and other content to support your research.

Employment

While we are not currently looking to fill a specific position at Micro Photonics, if helping others advance their research is something you are passionate about, then feel free to send us your resume so that we can keep it for further considerations when a position does become available.

Please submit resumes to: info@microphotonics.com

Micro Photonics Inc.
1550 Pond Road, STE 110
Allentown, PA 18104

Events

Due to Covid-19 restrictions, we will not be attending tradeshows in the near future. We are participating in webinars and virtual tradeshows and will post links to those as they are available.

Privacy Policy

What information do we collect? We collect information from you when you register on our site, place an order, subscribe to our newsletter or fill out a form. When ordering or registering on our site, as appropriate, you may be asked to enter your: name, e-mail address, mailing address, phone number or credit card information. You may, however, visit our site anonymously.
What do we use your information for? Any of the information we collect from you may be used in one of the following ways:

; To personalize your experience (your information helps us to better respond to your individual needs).

; To improve customer service (your information helps us to more effectively respond to your customer service requests and support needs).

; To process transactions. Your information, whether public or private, will not be sold, exchanged, transferred, or given to any other company for any reason whatsoever, without your consent, other than for the express purpose of delivering the purchased product or service requested.

; To send periodic emails .The email address you provide for order processing, will only be used to send you information and updates pertaining to your order.Note: If at any time you would like to unsubscribe from receiving future emails, we include detailed unsubscribe instructions at the bottom of each email.

Terms and Conditions

Terms of Service for www.microphotonics.com

Introduction. Welcome to www.microphotonics.com. This website is owned and operated by Micro Photonics Inc. By visiting our website and accessing the information, resources, services, products, and tools we provide, you understand and agree to accept and adhere to the following terms and conditions as stated in this policy (hereafter referred to as ‘User Agreement’), along with the terms and conditions as stated in our Privacy Policy (please refer to the Privacy Policy section below for more information).

This agreement is in effect as of October 25, 2018.

We reserve the right to change this User Agreement from time to time without notice. You acknowledge and agree that it is your responsibility to review this User Agreement periodically to familiarize yourself with any modifications. Your continued use of this site after such modifications will constitute acknowledgment and agreement of the modified terms and conditions.

Responsible Use and Conduct. By visiting our website and accessing the information, resources, services, products, and tools we provide for you, either directly or indirectly (hereafter referred to as ‘Resources’), you agree to use these Resources only for the purposes intended as permitted by (a) the terms of this User Agreement, (b) the terms of any applicable confidentiality, non-disclosure, or other agreement between you and a third party, and (c) applicable laws, regulations and generally accepted online practices or guidelines.

US Partner Form









    Call Now Button