2023
Growth, physiology, and stomatal parameters of plant polyploids grown under ice age, present-day, and future CO2 concentrations
ŠMARDA, Petr, Karel KLEM, Ondřej KNÁPEK, Barbora VESELA, Kristýna VESELÁ et. al.Základní údaje
Originální název
Growth, physiology, and stomatal parameters of plant polyploids grown under ice age, present-day, and future CO2 concentrations
Autoři
ŠMARDA, Petr (203 Česká republika, garant, domácí), Karel KLEM, Ondřej KNÁPEK (203 Česká republika, domácí), Barbora VESELA, Kristýna VESELÁ (203 Česká republika, domácí), Petr HOLUB, Vít KUCHAŘ (203 Česká republika, domácí), Alexandra ŠILEROVÁ (203 Česká republika, domácí), Lucie HOROVÁ (203 Česká republika, domácí) a Petr BUREŠ (203 Česká republika, domácí)
Vydání
New Phytologist, HOBOKEN, Blackwell Science, 2023, 0028-646X
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10611 Plant sciences, botany
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 9.400 v roce 2022
Kód RIV
RIV/00216224:14310/23:00134269
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000986188200001
Klíčová slova anglicky
atmospheric carbon dioxide; cell size; climate change; genome size; glacial periods; photosynthesis; polyploidy; stomatal conductance
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 6. 1. 2024 00:19, prof. RNDr. Petr Bureš, Ph.D.
Anotace
V originále
center dot Polyploidy plays an important role in plant evolution, but knowledge of its ecophysiological consequences, such as of the putatively enlarged stomata of polyploid plants, remains limited. Enlarged stomata should disadvantage polyploids at low CO2 concentrations (namely during the Quaternary glacial periods) because larger stomata are viewed as less effective at CO2 uptake. center dot We observed the growth, physiology, and epidermal cell features of 15 diploids and their polyploid relatives cultivated under glacial, present-day, and potential future atmospheric CO2 concentrations (200, 400, and 800 ppm respectively). center dot We demonstrated some well-known polyploidy effects, such as faster growth and larger leaves, seeds, stomata, and other epidermal cells. The stomata of polyploids, however, tended to be more elongated than those of diploids, and contrary to common belief, they had no negative effect on the CO2 uptake capacity of polyploids. Moreover, polyploids grew comparatively better than diploids even at low, glacial CO2 concentrations. Higher polyploids with large genomes also showed increased operational stomatal conductance and consequently, a lower water-use efficiency. center dot Our results point to a possible decrease in growth superiority of polyploids over diploids in a current and future high CO2 climactic scenarios, as well as the possible water and/or nutrient dependency of higher polyploids.
Návaznosti
GA19-18545S, projekt VaV |
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