Water uptake by dry beans observed by micro-magnetic resonance imaging

Annals of Botany
Kaori KikuchiHiromi Kano


Water uptake by dry kidney beans (Phaseolus vulgaris 'Rajma') and adzuki beans (Vigna angularis) was traced using micro-magnetic resonance imaging in order to elucidate the channel of water entry, the manner of water delivery and the timing of swelling of the seeds. Magnetic resonance images of beans absorbing water were continuously measured with the single-point imaging method for 16 h or 20 h at 15-min intervals. With this technique, it was possible to detect and visualize the location of water in the beans, at a low water content, in the initial stages of water entry. Water was taken up through a specified tissue, the lens, near the hilum, and distributed primarily to the testa. When water reached the radicle, it began to be incorporated into cotyledons with considerable swelling of the seeds. Water uptake took place within a short time for kidney beans. The initial process of water entry was associated with mechanical vibration of the seed. Rapid hydration of the testa and the swelling of the cotyledons were then observed. Water was supplied to cotyledons through the adaxial epidermis. In contrast, it took a long time, approx. 7 h, to activate the water channel of the lens for adzuki beans which have a tightly fitting test...Continue Reading


Mar 4, 1999·Journal of Magnetic Resonance·M RokittaA Haase
Feb 7, 2002·Journal of Agricultural and Food Chemistry·Marco L H GruwelSuzanne R Abrams
May 17, 2003·Journal of Plant Physiology·Carol D FroeseJohn E Thompson
Oct 16, 2003·Magnetic Resonance Imaging·J LammertynB M Nicolaï
Jul 6, 2004·Magnetic Resonance Imaging·Nobuaki IshidaHiromi Kano
Jun 1, 1977·Plant Physiology·D J Parrish, A C Leopold
May 1, 1984·Plant Physiology·C W Vertucci, A C Leopold


Dec 28, 2010·Plant & Cell Physiology·Tomoyuki TakaseHitoshi Suzuki
Feb 5, 2008·Genetics·Akito KagaDuncan A Vaughan
Aug 8, 2014·Frontiers in Plant Science·Petr SmýkalRichard D Thompson
Aug 21, 2014·Anais Da Academia Brasileira De Ciências·Tathiana E MasettoAna C R Fraiz
Aug 12, 2017·The New Phytologist·Eberhard MunzLjudmilla Borisjuk
Mar 28, 2012·The Plant Journal : for Cell and Molecular Biology·Ljudmilla BorisjukThomas Neuberger
Jul 17, 2014·Biological Research·Hugo M Ramírez-TobíasHumberto Vaquera H
Oct 4, 2018·The Review of Scientific Instruments·Parmesh GajjarPhilip J Withers
Jan 31, 2019·International Journal of Molecular Sciences·Katarzyna LechowskaMałgorzata Garnczarska
Apr 30, 2019·Royal Society Open Science·Kiing S WongMing K Tan
Feb 13, 2021·Plant Phenomics : a Science Partner Journal·J P Ribeiro-OliveiraM A Boselli

Related Concepts

Magnetization Transfer Contrast Imaging
Cotyledon plant
Phaseolus acutifolius

Trending Feeds


Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Alzheimer's Disease: MS4A

Variants within the membrane-spanning 4-domains subfamily A (MS4A) gene cluster have recently been implicated in Alzheimer's disease in genome-wide association studies. Here is the latest research on Alzheimer's disease and MS4A.

Pediculosis pubis

Pediculosis pubis is a disease caused by a parasitic insect known as Pthirus pubis, which infests human pubic hair, as well as other areas with hair including eye lashes. Here is the latest research.

Rh Isoimmunization

Rh isoimmunization is a potentially preventable condition that occasionally is associated with significant perinatal morbidity or mortality. Discover the latest research on Rh Isoimmunization here.

Genetic Screens in iPSC-derived Brain Cells

Genetic screening is a critical tool that can be employed to define and understand gene function and interaction. This feed focuses on genetic screens conducted using induced pluripotent stem cell (iPSC)-derived brain cells. It also follows CRISPR-Cas9 approaches to generating genetic mutants as a means of understanding the effect of genetics on phenotype.

Enzyme Evolution

This feed focuses on molecular models of enzyme evolution and new approaches (such as adaptive laboratory evolution) to metabolic engineering of microorganisms. Here is the latest research.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Pharmacology of Proteinopathies

This feed focuses on the pharmacology of proteinopathies - diseases in which proteins abnormally aggregate (i.e. Alzheimer’s, Parkinson’s, etc.). Discover the latest research in this field with this feed.

Alignment-free Sequence Analysis Tools

Alignment-free sequence analyses have been applied to problems ranging from whole-genome phylogeny to the classification of protein families, identification of horizontally transferred genes, and detection of recombined sequences. Here is the latest research.