Dehydration-induced responses of primary photosynthetic
processes and spectral reflectance indices in Antarctic Nostoc
commune

J 2016

Dehydration-induced responses of primary photosynthetic processes and spectral reflectance indices in Antarctic Nostoc commune

BARTÁK, Miloš, Jana HAZDROVÁ, Kateřina SKÁCELOVÁ and Josef HÁJEK

Basic information

Original name

Dehydration-induced responses of primary photosynthetic processes and spectral reflectance indices in Antarctic Nostoc commune

Name in Czech

Dehydrací způsobené reakce primárních procesů fotosyntézy a indexů spektrální odrazivosti v antarktickém druhu Nostoc commune

Authors

BARTÁK, Miloš (203 Czech Republic, guarantor, belonging to the institution), Jana HAZDROVÁ (203 Czech Republic, belonging to the institution), Kateřina SKÁCELOVÁ (203 Czech Republic, belonging to the institution) and Josef HÁJEK (203 Czech Republic, belonging to the institution)

Edition

Czech Polar Reports, Brno, Masarykova univerzita, 2016, 1805-0689

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10600 1.6 Biological sciences

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

free pdf copy

RIV identification code

RIV/00216224:14310/16:00090930

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.5817/CPR2016-1-9

Keywords (in Czech)

PRI; NDVI; Antarktida; ostrovJames Rosse; saturační efekt; kolonie

Keywords in English

PRI; NDVI; Antarctic; James Ross Island; saturation effect; colony

Abstract

ORIG CZ

V originále

In this study, we investigated the relationship between relative water content (RWC) of N. commune colonies recorded during gradual dehydration and (i) normalized difference vegetation index (NDVI), (ii) photochemical reflectance index (PRI), and (iii) primary photochemical processes of photosynthesis, effective quantum yield of photosynthetic processes (PhiPSII) in photosystem II particular. PRI increased from -0.05 to 0.02 with RWC decrease from 100% (full hydration) to 0% (dry state). NDVI showed somewhat curvilinear relationship with desiccation with minimum value of 0.25 found at 10% RWC. Negative effect of suprasaturation of N. commune colony with water on effective quantum yield (PhiPSII) was found at RWC range 80-100%. At the RWC range, PhiPSII reached only 50 % of maximum found at RWC of 30%. In general, desiccation-response curve of showed polyphasic character with three main phases (phase I – constant PhiPSII values, phase II – an increase with desiccation at RWC 80-30%, and phase III – sigmoidal decrease with desiccation at RWC 0-30%).

In Czech

Práce je zaměřena na analýzu spektrálních indexů PRI a NDVI, v souvislosti s dehydrací kolonie sinice Nostoc commune. Souběžně s indexy spektrální reflektance byly měřeny a analyzovávy fotosyntetické parametry fluorescence chlorofylu, zejména efektivní kvantový výtěžek fotosyntetických procesů ve fotosystému II (PS II)

Links

LM2010009, research and development project

Name: Projekt CzechPolar - České polární stanice: Stavba a operační náklady

Investor: Ministry of Education, Youth and Sports of the CR

Files attached

Bartak-Nostoc-web.pdf

Find similar documents

Citovat

BARTÁK, Miloš, Jana HAZDROVÁ, Kateřina SKÁCELOVÁ and Josef HÁJEK. Dehydration-induced responses of primary photosynthetic processes and spectral reflectance indices in Antarctic Nostoc commune. Czech Polar Reports. Brno: Masarykova univerzita, 2016, vol. 6, No 1, p. 87-95. ISSN 1805-0689. Available from: https://dx.doi.org/10.5817/CPR2016-1-9.

@article{1354831,
   author = {Barták, Miloš and Hazdrová, Jana and Skácelová, Kateřina and Hájek, Josef},
   article_location = {Brno},
   article_number = {1},
   doi = {http://dx.doi.org/10.5817/CPR2016-1-9},
   keywords = {PRI; NDVI; Antarctic; James Ross Island; saturation effect; colony},
   language = {eng},
   issn = {1805-0689},
   journal = {Czech Polar Reports},
   title = {Dehydration-induced responses of primary photosynthetic processes and spectral reflectance indices in Antarctic Nostoc commune},
   url = {http://www.sci.muni.cz/CPR/11cislo/Bartak-Nostoc-web.pdf},
   volume = {6},
   year = {2016}
}

TY  - JOUR
ID  - 1354831
AU  - Barták, Miloš - Hazdrová, Jana - Skácelová, Kateřina - Hájek, Josef
PY  - 2016
TI  - Dehydration-induced responses of primary photosynthetic processes and spectral reflectance indices in Antarctic Nostoc commune
JF  - Czech Polar Reports
VL  - 6
IS  - 1
SP  - 87-95
EP  - 87-95
PB  - Masarykova univerzita
SN  - 18050689
KW  - PRI
KW  - NDVI
KW  - Antarctic
KW  - James Ross Island
KW  - saturation effect
KW  - colony
UR  - http://www.sci.muni.cz/CPR/11cislo/Bartak-Nostoc-web.pdf
N2  - In this study, we investigated the relationship between relative water content (RWC) of N. commune colonies recorded during gradual dehydration and (i) normalized difference vegetation index (NDVI), (ii) photochemical reflectance index (PRI), and (iii) primary photochemical processes of photosynthesis, effective quantum yield of photosynthetic processes (PhiPSII) in photosystem II particular. PRI increased from -0.05 to 0.02 with RWC decrease from 100% (full hydration) to 0% (dry state). NDVI showed somewhat curvilinear relationship with desiccation with minimum value of 0.25 found at 10% RWC. Negative effect of suprasaturation of N. commune colony with water on effective quantum yield (PhiPSII) was found at RWC range 80-100%. At the RWC range, PhiPSII reached only 50 % of maximum found at RWC of 30%. In general, desiccation-response curve of showed polyphasic character with three main phases (phase I – constant PhiPSII values, phase II – an increase with desiccation at RWC 80-30%, and phase III – sigmoidal decrease with desiccation at RWC 0-30%).
ER  -

BARTÁK, Miloš, Jana HAZDROVÁ, Kateřina SKÁCELOVÁ and Josef HÁJEK. Dehydration-induced responses of primary photosynthetic processes and spectral reflectance indices in Antarctic Nostoc commune. \textit{Czech Polar Reports}. Brno: Masarykova univerzita, 2016, vol.~6, No~1, p.~87-95. ISSN~1805-0689. Available from: https://dx.doi.org/10.5817/CPR2016-1-9.

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