Water transport secrets of the dragon's blood trees revealed through sap flow measurements following partial stem incision

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F19%3A43914974" target="_blank" >RIV/62156489:43410/19:43914974 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.flora.2018.11.015" target="_blank" >https://doi.org/10.1016/j.flora.2018.11.015</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.flora.2018.11.015" target="_blank" >10.1016/j.flora.2018.11.015</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Water transport secrets of the dragon's blood trees revealed through sap flow measurements following partial stem incision

Popis výsledku v původním jazyce

Dragon&apos;s blood trees have long been prized for their red resin, and are consequently subjected to traditional practices for its harvesting which involves inflicting numerous, deep stem wounds. Nevertheless, these iconic monocots have continued to survive such drastic treatments. Partial stem incision (PSI) treatment effectively imitates stem wounding, which when combined with sap flow measurements monitored in a close distance of few centimeters above PSI, may significantly improve our understanding of water transport efficiency after stem damage in monocots. As it is impossible to conduct these experiments on protected adult Dracaena species native to remote sites, we demonstrated this approach on young Dracaena draco L. and Dracaena cinnabari Balfour f. plants ex-situ. The goal of this study was to simulate the effects of serious stem wounding on water transport of these woody monocots by applying PSI under permanent sap flow monitoring by the heat field deformation (HFD) method using multi-point sensors. This allowed us to simultaneously monitor sap flow in both wounded and intact stem parts. It was observed that PSI applied in stems up to one-half of the total stem diameter did not reduce sap flow in D. species in any of the monitored stem part indicating efficient bypassing interrupted axial xylem transport by lateral water movement. The dense three dimensional network of interconnected vascular bundles and abundant ground tissue with large simple pits could play an important role in such high transport effectivity of Dracaena species. Synchronous sap flow and nuclear magnetic resonance measurements would be especially useful for the revealing of water flow complexity of Dracaena species in future.

Název v anglickém jazyce

Water transport secrets of the dragon's blood trees revealed through sap flow measurements following partial stem incision

Popis výsledku anglicky

Dragon&apos;s blood trees have long been prized for their red resin, and are consequently subjected to traditional practices for its harvesting which involves inflicting numerous, deep stem wounds. Nevertheless, these iconic monocots have continued to survive such drastic treatments. Partial stem incision (PSI) treatment effectively imitates stem wounding, which when combined with sap flow measurements monitored in a close distance of few centimeters above PSI, may significantly improve our understanding of water transport efficiency after stem damage in monocots. As it is impossible to conduct these experiments on protected adult Dracaena species native to remote sites, we demonstrated this approach on young Dracaena draco L. and Dracaena cinnabari Balfour f. plants ex-situ. The goal of this study was to simulate the effects of serious stem wounding on water transport of these woody monocots by applying PSI under permanent sap flow monitoring by the heat field deformation (HFD) method using multi-point sensors. This allowed us to simultaneously monitor sap flow in both wounded and intact stem parts. It was observed that PSI applied in stems up to one-half of the total stem diameter did not reduce sap flow in D. species in any of the monitored stem part indicating efficient bypassing interrupted axial xylem transport by lateral water movement. The dense three dimensional network of interconnected vascular bundles and abundant ground tissue with large simple pits could play an important role in such high transport effectivity of Dracaena species. Synchronous sap flow and nuclear magnetic resonance measurements would be especially useful for the revealing of water flow complexity of Dracaena species in future.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Flora

ISSN

0367-2530

e-ISSN

—

Svazek periodika

250

Číslo periodika v rámci svazku

January

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

8

Strana od-do

44-51

Kód UT WoS článku

000455038200006

EID výsledku v databázi Scopus

2-s2.0-85057885461