PMID: 22567926May 10, 2012Paper

Formation of the vascular system of developing bean (Phaseolus limensis L.) seeds according to nuclear magnetic resonance microtomography

Ontogenez
I S Vinogradova, O V Falaleev

Abstract

1H magnetic resonance microtomography imaging was applied to study vascular systems in developing bean (Phaseolus limensis L.) seeds. Using the gradient echo method, we recorded 2D tomographic sections in the sagittal and axial planes of the fruits sampled from a vegetating plant on days 10, 17, 24, and 31 after fertilization. Any vascular connection between the tissues of maternal plant (bean pod and seed coat) and the embryo were undetectable. The embryo has an autonomous branched network of procambial strands in the cotyledons, converging to the embryonic axis. The bean pods are covered with a network of vascular bundles; large vascular strands run along the dorsal and ventral sutures. The seed coat vascular bundles are formed in the process of seed ripening and are represented by a developed vascular system multiply branching in the middle part of the ground parenchyma at the stage of physiological maturity. They are connected with the source of assimilates via the lateral pod veins and a large vascular bundle, entering the seed below the hilum via the placenta. Assimilates enter the external part of the seed coat, which contains no vascular bundles, via the funiculus vascular bundles and hilum tissue.

References

Dec 1, 1991·The Journal of Laryngology and Otology·K A SharaM al-Shennawy
Jul 1, 1988·Magnetic Resonance Imaging·E M Haacke
Oct 29, 2000·Journal of Experimental Botany·T W ScheenenH Van As
May 25, 2001·Journal of Experimental Botany·J W Patrick, C E Offler
Jul 4, 2001·Trends in Plant Science·W Köckenberger
Jun 14, 2003·The British Journal of Oral & Maxillofacial Surgery·V Ilankovan, P A Brennan
Apr 23, 2004·Journal of Microscopy·W KöckenbergerS Rawsthorne
Jul 6, 2004·Magnetic Resonance Imaging·Nobuaki IshidaHiromi Kano
May 3, 2005·Annual Review of Plant Biology·Hans WeberUlrich Wobus
Jan 1, 1985·Plant Physiology·M B PeoplesD R Murray
Jan 1, 1985·Plant Physiology·J S PateC A Atkins
Jul 18, 2006·Annals of Botany·Kaori KikuchiHiromi Kano
Oct 12, 2007·Plant, Cell & Environment·Yuchan ZhouJohn W Patrick
Jun 17, 2008·Journal of Plant Physiology·Małgorzata GarnczarskaŁukasz Wojtyla
Aug 28, 2009·Photosynthesis Research·Henk Van AsFrank J Vergeldt

❮ Previous
Next ❯

Citations

Oct 28, 2014·Frontiers in Plant Science·Volodymyr Radchuk, Ljudmilla Borisjuk

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

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.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

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.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.