Casparian strips
نویسندگان
چکیده
منابع مشابه
Casparian strips
among other things, a paleobotanist and an evolutionary biologist, and he is clearly in his element here as he ranges from the enigmatic origin of the Ginkgo alliance at least 220, and probably 245, million years ago, through its evolutionary radiation to become an important tree in appropriate habitats in temperate regions worldwide, to its subsequent decline in diversity and geographical rang...
متن کاملCasparian strips in needles are more solute permeable than endodermal transport barriers in roots of Pinus bungeana.
The structure and development of endodermal Casparian strips in Pinus bungeana needles and roots were studied by scanning electron microscopy and fluorescence microscopy. Primary pit fields (PFs) frequently occurred in radial walls of Casparian strips isolated from needles, whereas PFs were never detected in Casparian strips from roots. Formation of Casparian strips in needles as well as roots ...
متن کاملRole of LOTR1 in Nutrient Transport through Organization of Spatial Distribution of Root Endodermal Barriers
The formation of Casparian strips and suberin lamellae at the endodermis limits the free diffusion of nutrients and harmful substances via the apoplastic space between the soil solution and the stele in roots [1-3]. Casparian strips are ring-like lignin polymers deposited in the middle of anticlinal cell walls between endodermal cells and fill the gap between them [4-6]. Suberin lamellae are gl...
متن کاملThe MYB36 transcription factor orchestrates Casparian strip formation.
The endodermis in roots acts as a selectivity filter for nutrient and water transport essential for growth and development. This selectivity is enabled by the formation of lignin-based Casparian strips. Casparian strip formation is initiated by the localization of the Casparian strip domain proteins (CASPs) in the plasma membrane, at the site where the Casparian strip will form. Localized CASPs...
متن کاملColorful Strips
We study the following geometric hypergraph coloring problem: given a planar point set and an integer k, we wish to color the points with k colors so that any axis-aligned strip containing sufficiently many points contains all colors. We show that if the strip contains at least 2k−1 points, such a coloring can always be found. In dimension d, we show that the same holds provided the strip conta...
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ژورنال
عنوان ژورنال: Current Biology
سال: 2013
ISSN: 0960-9822
DOI: 10.1016/j.cub.2013.08.052