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Non-Foliar Photosynthesis in Pea (Pisum sativum L.) Plants : Beyond the Leaves to Inside the Seeds. / Stepanova, Nataliia; Zhilkina, Тatiana ; Kamionskaya, Anastasia; Smolikova, Galina.

в: Plants, Том 13, № 20, 2945, 21.10.2024.

Результаты исследований: Научные публикации в периодических изданияхстатьяРецензирование

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Stepanova, Nataliia ; Zhilkina, Тatiana ; Kamionskaya, Anastasia ; Smolikova, Galina. / Non-Foliar Photosynthesis in Pea (Pisum sativum L.) Plants : Beyond the Leaves to Inside the Seeds. в: Plants. 2024 ; Том 13, № 20.

BibTeX

@article{960fa3a0d2fc42b698d7133b3ba5eab5,
title = "Non-Foliar Photosynthesis in Pea (Pisum sativum L.) Plants: Beyond the Leaves to Inside the Seeds",
abstract = "In addition to leaves, photosynthesis can occur in other green plant organs, including developing seeds of many crops. While the majority of studies examining photosynthesis are concentrated on the leaf level, the role of other green tissues in the production of total photoassimilates has been largely overlooked. The present work studies the photosynthetic behavior of leaves and non-foliar (pericarps, coats, and cotyledons) organs of pea (Pisum sativum L.) plants at the middle stage of seed maturation. The Chl a fluorescence transient was examined based on OJIP kinetics using the FluorPen FP 110. A discrepancy was observed between the performance index (PIABS) for foliar and non-foliar plant tissues, with the highest level noted in the leaves. The number of absorbed photons (ABS) and captured energy flow (TRo) per reaction center (RC) were elevated in the non-foliar tissues, which resulted in a faster reduction in QA. Conversely, the energy dissipation flux per RC (DIo/RC and PHI_Do) indicated an increase in the overall dissipation potential of active reaction centers of photosystem II. This phenomenon was attributed to the presence of a higher number of inactive RCs in tissues that had developed under low light intensity. Furthermore, the expression of genes associated with proteins and enzymes that regulate ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCo) activity was observed, including chaperonins Cpn60α and Cpn60β, RuBisCO activase, as well as phosphoribulokinase. The expression of these genes was found to differ between foliar and non-foliar tissues, indicating that the activation state of RuBisCO may be modified in response to light intensity. Overall, the present study provides insights into the mechanisms by which non-foliar green tissues of plants adapt to efficient light capture and utilization under low light conditions.",
keywords = "chlorophyll a fl uorescence, leaves, non-foliar photosynthesis",
author = "Nataliia Stepanova and Тatiana Zhilkina and Anastasia Kamionskaya and Galina Smolikova",
year = "2024",
month = oct,
day = "21",
doi = "10.3390/plants13202945",
language = "English",
volume = "13",
journal = "Plants",
issn = "2223-7747",
publisher = "MDPI AG",
number = "20",

}

RIS

TY - JOUR

T1 - Non-Foliar Photosynthesis in Pea (Pisum sativum L.) Plants

T2 - Beyond the Leaves to Inside the Seeds

AU - Stepanova, Nataliia

AU - Zhilkina, Тatiana

AU - Kamionskaya, Anastasia

AU - Smolikova, Galina

PY - 2024/10/21

Y1 - 2024/10/21

N2 - In addition to leaves, photosynthesis can occur in other green plant organs, including developing seeds of many crops. While the majority of studies examining photosynthesis are concentrated on the leaf level, the role of other green tissues in the production of total photoassimilates has been largely overlooked. The present work studies the photosynthetic behavior of leaves and non-foliar (pericarps, coats, and cotyledons) organs of pea (Pisum sativum L.) plants at the middle stage of seed maturation. The Chl a fluorescence transient was examined based on OJIP kinetics using the FluorPen FP 110. A discrepancy was observed between the performance index (PIABS) for foliar and non-foliar plant tissues, with the highest level noted in the leaves. The number of absorbed photons (ABS) and captured energy flow (TRo) per reaction center (RC) were elevated in the non-foliar tissues, which resulted in a faster reduction in QA. Conversely, the energy dissipation flux per RC (DIo/RC and PHI_Do) indicated an increase in the overall dissipation potential of active reaction centers of photosystem II. This phenomenon was attributed to the presence of a higher number of inactive RCs in tissues that had developed under low light intensity. Furthermore, the expression of genes associated with proteins and enzymes that regulate ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCo) activity was observed, including chaperonins Cpn60α and Cpn60β, RuBisCO activase, as well as phosphoribulokinase. The expression of these genes was found to differ between foliar and non-foliar tissues, indicating that the activation state of RuBisCO may be modified in response to light intensity. Overall, the present study provides insights into the mechanisms by which non-foliar green tissues of plants adapt to efficient light capture and utilization under low light conditions.

AB - In addition to leaves, photosynthesis can occur in other green plant organs, including developing seeds of many crops. While the majority of studies examining photosynthesis are concentrated on the leaf level, the role of other green tissues in the production of total photoassimilates has been largely overlooked. The present work studies the photosynthetic behavior of leaves and non-foliar (pericarps, coats, and cotyledons) organs of pea (Pisum sativum L.) plants at the middle stage of seed maturation. The Chl a fluorescence transient was examined based on OJIP kinetics using the FluorPen FP 110. A discrepancy was observed between the performance index (PIABS) for foliar and non-foliar plant tissues, with the highest level noted in the leaves. The number of absorbed photons (ABS) and captured energy flow (TRo) per reaction center (RC) were elevated in the non-foliar tissues, which resulted in a faster reduction in QA. Conversely, the energy dissipation flux per RC (DIo/RC and PHI_Do) indicated an increase in the overall dissipation potential of active reaction centers of photosystem II. This phenomenon was attributed to the presence of a higher number of inactive RCs in tissues that had developed under low light intensity. Furthermore, the expression of genes associated with proteins and enzymes that regulate ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCo) activity was observed, including chaperonins Cpn60α and Cpn60β, RuBisCO activase, as well as phosphoribulokinase. The expression of these genes was found to differ between foliar and non-foliar tissues, indicating that the activation state of RuBisCO may be modified in response to light intensity. Overall, the present study provides insights into the mechanisms by which non-foliar green tissues of plants adapt to efficient light capture and utilization under low light conditions.

KW - chlorophyll a fl uorescence

KW - leaves

KW - non-foliar photosynthesis

UR - https://www.mdpi.com/2223-7747/13/20/2945

UR - https://www.mendeley.com/catalogue/b26d3f66-e818-36d7-a344-0a6ea03f4926/

U2 - 10.3390/plants13202945

DO - 10.3390/plants13202945

M3 - Article

C2 - 39458892

VL - 13

JO - Plants

JF - Plants

SN - 2223-7747

IS - 20

M1 - 2945

ER -

ID: 127084562