Differences in physiological adaptation of Haberlea rhodopensis Friv. leaves and roots during dehydration-rehydration cycle

Evelin R. Péli, Gergana Mihailova, Snejanka Petkova, Z. Tuba, Katya Georgieva

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The ecophysiological responses of the homoiochlorophyllous desiccation-tolerant (HDT) plant Haberlea rhodopensis showed that this plant could tolerate water deficit and both leaves and roots had high ability to survive severe desiccation. The changes and correlation between CO 2 assimilation, stomatal conductance, contents of photosynthetic pigments, root respiration and specific leaf area during dehydration-rehydration cycle were investigated. The physiological activity of leaves and roots were examined in fully hydrated (control) plants and during 72 h of dehydration, as well as following 96 h of rehydration every 6 and 24 h. After 6 h of dehydration, the stomatal conductance declined and the intercellular CO 2 concentration increased. The reduction in CO 2 assimilation rate was observed after 54 h of dehydration. There was a good correlation between the root respiration and water content. Our results showed that the plasticity of adaptation in leaves and roots were different during extreme water conditions. Roots were more sensitive and reacted faster to water stress than leaves, but their activity rapidly recovered due to immediate and efficient utilization of periodic water supply.

Original languageEnglish
Pages (from-to)947-955
Number of pages9
JournalActa Physiologiae Plantarum
Volume34
Issue number3
DOIs
Publication statusPublished - May 2012

Fingerprint

Physiological Adaptation
Fluid Therapy
rehydration
desiccation (plant physiology)
Dehydration
Carbon Monoxide
Desiccation
leaves
Water
Respiration
stomatal conductance
assimilation (physiology)
Water Supply
water supply
water stress
leaf area
water
pigments
water content

Keywords

  • Desiccation tolerance
  • Homoiochlorophyllous
  • Photosynthesis
  • Rehydration
  • Root respiration

ASJC Scopus subject areas

  • Plant Science
  • Physiology
  • Agronomy and Crop Science

Cite this

Differences in physiological adaptation of Haberlea rhodopensis Friv. leaves and roots during dehydration-rehydration cycle. / Péli, Evelin R.; Mihailova, Gergana; Petkova, Snejanka; Tuba, Z.; Georgieva, Katya.

In: Acta Physiologiae Plantarum, Vol. 34, No. 3, 05.2012, p. 947-955.

Research output: Contribution to journalArticle

Péli, Evelin R. ; Mihailova, Gergana ; Petkova, Snejanka ; Tuba, Z. ; Georgieva, Katya. / Differences in physiological adaptation of Haberlea rhodopensis Friv. leaves and roots during dehydration-rehydration cycle. In: Acta Physiologiae Plantarum. 2012 ; Vol. 34, No. 3. pp. 947-955.
@article{a854677691d44f4180b68d57726d8c8b,
title = "Differences in physiological adaptation of Haberlea rhodopensis Friv. leaves and roots during dehydration-rehydration cycle",
abstract = "The ecophysiological responses of the homoiochlorophyllous desiccation-tolerant (HDT) plant Haberlea rhodopensis showed that this plant could tolerate water deficit and both leaves and roots had high ability to survive severe desiccation. The changes and correlation between CO 2 assimilation, stomatal conductance, contents of photosynthetic pigments, root respiration and specific leaf area during dehydration-rehydration cycle were investigated. The physiological activity of leaves and roots were examined in fully hydrated (control) plants and during 72 h of dehydration, as well as following 96 h of rehydration every 6 and 24 h. After 6 h of dehydration, the stomatal conductance declined and the intercellular CO 2 concentration increased. The reduction in CO 2 assimilation rate was observed after 54 h of dehydration. There was a good correlation between the root respiration and water content. Our results showed that the plasticity of adaptation in leaves and roots were different during extreme water conditions. Roots were more sensitive and reacted faster to water stress than leaves, but their activity rapidly recovered due to immediate and efficient utilization of periodic water supply.",
keywords = "Desiccation tolerance, Homoiochlorophyllous, Photosynthesis, Rehydration, Root respiration",
author = "P{\'e}li, {Evelin R.} and Gergana Mihailova and Snejanka Petkova and Z. Tuba and Katya Georgieva",
year = "2012",
month = "5",
doi = "10.1007/s11738-011-0891-9",
language = "English",
volume = "34",
pages = "947--955",
journal = "Acta Physiologiae Plantarum",
issn = "0137-5881",
publisher = "Polish Academy of Sciences Publishing House",
number = "3",

}

TY - JOUR

T1 - Differences in physiological adaptation of Haberlea rhodopensis Friv. leaves and roots during dehydration-rehydration cycle

AU - Péli, Evelin R.

AU - Mihailova, Gergana

AU - Petkova, Snejanka

AU - Tuba, Z.

AU - Georgieva, Katya

PY - 2012/5

Y1 - 2012/5

N2 - The ecophysiological responses of the homoiochlorophyllous desiccation-tolerant (HDT) plant Haberlea rhodopensis showed that this plant could tolerate water deficit and both leaves and roots had high ability to survive severe desiccation. The changes and correlation between CO 2 assimilation, stomatal conductance, contents of photosynthetic pigments, root respiration and specific leaf area during dehydration-rehydration cycle were investigated. The physiological activity of leaves and roots were examined in fully hydrated (control) plants and during 72 h of dehydration, as well as following 96 h of rehydration every 6 and 24 h. After 6 h of dehydration, the stomatal conductance declined and the intercellular CO 2 concentration increased. The reduction in CO 2 assimilation rate was observed after 54 h of dehydration. There was a good correlation between the root respiration and water content. Our results showed that the plasticity of adaptation in leaves and roots were different during extreme water conditions. Roots were more sensitive and reacted faster to water stress than leaves, but their activity rapidly recovered due to immediate and efficient utilization of periodic water supply.

AB - The ecophysiological responses of the homoiochlorophyllous desiccation-tolerant (HDT) plant Haberlea rhodopensis showed that this plant could tolerate water deficit and both leaves and roots had high ability to survive severe desiccation. The changes and correlation between CO 2 assimilation, stomatal conductance, contents of photosynthetic pigments, root respiration and specific leaf area during dehydration-rehydration cycle were investigated. The physiological activity of leaves and roots were examined in fully hydrated (control) plants and during 72 h of dehydration, as well as following 96 h of rehydration every 6 and 24 h. After 6 h of dehydration, the stomatal conductance declined and the intercellular CO 2 concentration increased. The reduction in CO 2 assimilation rate was observed after 54 h of dehydration. There was a good correlation between the root respiration and water content. Our results showed that the plasticity of adaptation in leaves and roots were different during extreme water conditions. Roots were more sensitive and reacted faster to water stress than leaves, but their activity rapidly recovered due to immediate and efficient utilization of periodic water supply.

KW - Desiccation tolerance

KW - Homoiochlorophyllous

KW - Photosynthesis

KW - Rehydration

KW - Root respiration

UR - http://www.scopus.com/inward/record.url?scp=84859631083&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84859631083&partnerID=8YFLogxK

U2 - 10.1007/s11738-011-0891-9

DO - 10.1007/s11738-011-0891-9

M3 - Article

AN - SCOPUS:84859631083

VL - 34

SP - 947

EP - 955

JO - Acta Physiologiae Plantarum

JF - Acta Physiologiae Plantarum

SN - 0137-5881

IS - 3

ER -