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Examining Organic Acid Root Exudate Content and Function for Leafy Vegetables Under Water-Stressed Conditions

Naho Kasukawa

Naho Kasukawa

The University of TokyoJapan
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Kasukawa, Naho
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Kae Miyazawa

Kae Miyazawa

The University of TokyoJapan
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Miyazawa, Kae
  
18 nov 2020
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Categoria dell'articolo: Short communication
Pubblicato online: 18 nov 2020
Pagine: 83 - 90
Ricevuto: 01 giu 2020
Accettato: 01 ott 2020
DOI: https://doi.org/10.2478/johr-2020-0022
Parole chiave
© 2020 Naho Kasukawa et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Figure 1

Organic acid secretions (μl per cm3) of (A) cabbage, (B) lettuce, and (C) Napa cabbage compared between control and drought stress (15% PEG) treatments. Error bars represent the standard deviation; (n = 4)
Organic acid secretions (μl per cm3) of (A) cabbage, (B) lettuce, and (C) Napa cabbage compared between control and drought stress (15% PEG) treatments. Error bars represent the standard deviation; (n = 4)

Figure 2

Enzyme activity (U/L) recorded for cabbage seedlings subjected to control, and 5 mM of respective organic acid treatments: (A) catalase (CAT), (B) ascorbate peroxidase (APX). Error bars represent the standard deviation; (n = 4)
Enzyme activity (U/L) recorded for cabbage seedlings subjected to control, and 5 mM of respective organic acid treatments: (A) catalase (CAT), (B) ascorbate peroxidase (APX). Error bars represent the standard deviation; (n = 4)

Figure 3

Enzyme activity (U/L) recorded for lettuce seedlings subjected to control, and 5 mM of respective organic acid treatments: (A) catalase (CAT), (B) ascorbate peroxidase (APX). Error bars represent the standard deviation; (n = 4)
Enzyme activity (U/L) recorded for lettuce seedlings subjected to control, and 5 mM of respective organic acid treatments: (A) catalase (CAT), (B) ascorbate peroxidase (APX). Error bars represent the standard deviation; (n = 4)

Figure 4

Enzyme activity (U/L) recorded for Napa cabbage seedlings subjected to control, and 5 mM of respective organic acid treatments: (A) catalase (CAT), (B) ascorbate peroxidase (APX). Error bars represent the standard deviation; (n = 4); a double asterisk indicates a significant difference when compared to the control (p < 0.01)
Enzyme activity (U/L) recorded for Napa cabbage seedlings subjected to control, and 5 mM of respective organic acid treatments: (A) catalase (CAT), (B) ascorbate peroxidase (APX). Error bars represent the standard deviation; (n = 4); a double asterisk indicates a significant difference when compared to the control (p < 0.01)

Figure 5

(A) root length and (B) shoot length under regular watering during germination (RW)/application of PEG solution (PEG) treatment and varying organic acid pretreatments for cabbage. Error bars represent the standard deviation; (n = 30)
(A) root length and (B) shoot length under regular watering during germination (RW)/application of PEG solution (PEG) treatment and varying organic acid pretreatments for cabbage. Error bars represent the standard deviation; (n = 30)

Figure 6

(A) root length and (B) shoot length under regular watering during germination (RW)/application of PEG solution (PEG) treatment and varying organic acid pretreatments for Napa cabbage. Error bars represent the standard deviation; (n = 30)
(A) root length and (B) shoot length under regular watering during germination (RW)/application of PEG solution (PEG) treatment and varying organic acid pretreatments for Napa cabbage. Error bars represent the standard deviation; (n = 30)

P-values of two-way ANOVA for determining significance in root length and shoot length for cabbage and Napa cabbage under different organic acid pretreatments and drought stress treatments

CabbageNapa cabbage
RootShootRootShoot
Pretreatment (P)< 0.0010.122< 0.0010.191
Drought stress (D)0.332< 0.001< 0.0010.009
P × D0.0550.0020.1260.101
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Inglese
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