Impacts of Chilling on Photosynthesis and Chlorophyll Pigment Content in Juvenile Basil Cultivars
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43510%2F16%3A43910234" target="_blank" >RIV/62156489:43510/16:43910234 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/s13580-016-0095-8" target="_blank" >http://dx.doi.org/10.1007/s13580-016-0095-8</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s13580-016-0095-8" target="_blank" >10.1007/s13580-016-0095-8</a>
Alternative languages
Result language
angličtina
Original language name
Impacts of Chilling on Photosynthesis and Chlorophyll Pigment Content in Juvenile Basil Cultivars
Original language description
The objective of this study was to examine several cultivars of Ocimum basilicum L. (green, red, cinnamon, lettuce leaf, lemon, and Thai basils) for photosynthetic performance, chlorophyll a fluorescence, and chlorophyll content under chilling stress conditions of 6 degrees C in comparison to non-stressed controls (18 degrees C). The basil plants were grown in a peat substrate for 8 weeks and then exposed to chilling for 8 or 16 days, under a 300 mu mol.m(-2).s(-1) photosynthetic photon flux. After chilling, significant reductions in both the transpiration (E) and net photosynthetic (PN) rates were observed in basil plants, while the intercellular CO2 concentration (C-i) was higher in the plants treated with 6 degrees C in comparison to the controls. The decrease in P-N and E was associated with decreased water use efficiency (WUE) and stomatal conductance (g(s)). The greatest impairment of photosynthesis for Thai basil leaves was observed after 8 days of chilling, and for green basil after the 16-day low temperature treatment. The photosystem II (PSII) activity (F-v/F-m) and variable-to-initial chlorophyll fluorescence (F-v/F-0) were decreased after chilling. PSII activity was most affected in lettuce leaf basil after 8 days, and in Thai and red basil plants after the prolonged temperature treatment. Low temperatures did not significantly alter the chlorophyll concentration but did increase the Chl a/b ratio in leaves of basil. The results indicated that the decrease in photosynthesis was not attributable mainly to damage to PSII, but rather to chilling-induced photoinhibition of PSI. The knowledge gained in this study on the genotypic variation in basil response should be helpful for future selection of plants with low chilling sensitivity.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Horticulture Environment and Biotechnology
ISSN
2211-3452
e-ISSN
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Volume of the periodical
57
Issue of the periodical within the volume
4
Country of publishing house
KR - KOREA, REPUBLIC OF
Number of pages
10
Pages from-to
330-339
UT code for WoS article
000383001900003
EID of the result in the Scopus database
2-s2.0-84984885355