Can differences in xylem anatomy explain the contrasting responses of two olive cultivars to infection by the bacterium Xylella fastidiosa?
Tag - xylem
William Salter
Thicker roots: to grow or not to grow? Investigating the dynamics of secondary root growth
Secondary growth of the roots of annual dicots has functional significance with regards to soil resource acquisition and transport, interactions with soil organisms and carbon sequestration.
Juniper Kiss
Hydraulic adjustments are of limited use in bracken fern
Changes in leaf anatomy, more than hydraulics, allowed the ferns to thrive in a high light environment.
Erin Zimmerman
Some trees can save effort when it comes to adding growth rings
Sometimes it’s easy to oversimplify plant anatomy. For example, trees don’t have blood. They have sap. It might be tempting to say that they carry sap in their xylem, the way we have blood in their veins...
Alun Salt
Hydraulic architecture of Eucalyptus grandis
A comprehensive understanding of the systems behind vertical transport of water in tall trees is crucial when predicting the susceptibility of these long-lived organisms to drought. Pfautsch et al. use detailed...
botanyone
Dragons, coconuts and skyscrapers…
Botanists aren't always genetic engineers. This week Nigel Chaffey finds some have branched out into civil engineering.
Nigel Chaffey
Bigging-up wood work
Secondary Xylem Biology: Origins, Functions, and Applications. Edited by Yoon Soo Kim, Ryo Funada and Adya Singh. Academic Press, 2016. We don’t get that many books dealing specifically with secondary xylem [wood]...
Hydathode trichomes in parasitic Orobanchaceae
This study provides the first evidence for the physiological role of the hydathode trichomes in active water secretion in the rhinanthoid Orobanchaceae.
Clean drinking water via plants
Plant xylem from the sapwood of coniferous trees can remove bacteria from water by simple pressure-driven filtration.
annbot
Soil to roots to stem to atmosphere…
Studies show that fog water diffuses directly through leaf cuticles of Drimys brasiliensis and is transported through the xylem to below ground.
Visualization of embolism formation using cold neutron radiography
Formation and repair of xylem embolism are of great importance for plant water relations, but are not easy to monitor. Tötzke et al. examine intact and cut stems of the lianas Adenia lobata, Aristolochia macrophylla and...
Linking water stress and carbon partitioning
Despite the well-known effects of water potential on fruit-tree growth and development, very few models combine carbohydrate allocation with water transport. Da Silva et al. introduce a xylem circuit into the L-Peach...
Xylem structure and passive bacterial spread
The bacterium Xylella fastidiosa, responsible for Pierce’s disease of grapevine, colonizes the xylem conduits of vines. Chatelet et al. examine the xylem structure of several varieties of grapevine, Vitis vinifera, and...
Starch and lipids during cambial reactivation
Starch and lipids during cambial reactivation Cambial reactivation in trees occurs from late winter to early spring when the supply of carbohydrates from photosynthesis is minimal or almost non-existent. Begum et al...
