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1

Effect of anaerobiosis on alcohol dehydrogenase in oat seedlings

100%
Kato-Noguchi H.
Acta Physiologiae Plantarum
|
1999
|
tom 21
|
nr 4
2

Flooding induction of alcohol dehydrogenase in shoots and roots of barley seedlings

100%
Kato-Noguchi H.
Acta Physiologiae Plantarum
|
1999
|
tom 21
|
nr 1
Barley (Hordeum vulgare) seedlings were exposed to flooding and activities of alcohol dehydrogenase (ADH) and their isoform profiles were determined. The flooding increased ADH activities in shoots and roots of the seedlings. By day 3, the activity increased to 4 and 3 times that of the initial level for the shoots and the roots, respectively. Only two bands of ADH isoform were found in the shoots and the roots of non-induced seedling, whereas five bands were identified in those of induced seedlings.
3

Effects of lemon balm [Melissa officinalis L.] extract on germination and seedling growth of six plants

100%
Kato-Noguchi H.
Acta Physiologiae Plantarum
|
2001
|
tom 23
|
nr 1
4

Effects of benzoxazinoids in wheat residues may inhibit the germination, growth and gibberellin-induced alpha-amylase activity in rice

63%
Czaki Y., Kato-Noguchi H.
Acta Physiologiae Plantarum
|
2016
|
tom 38
|
nr 01
5

Abscisic acid-glucose ester as an allelopathy agent from citrus fruit

63%
Kato-Noguchi H., Tanaka Y.
Acta Physiologiae Plantarum
|
2006
|
tom 28
|
nr 6
Aqueousmethanol extracts of Citrus junos, C. unshiu and C. sudachi fruit peel inhibited the growth of the roots and hypocotyls of alfalfa (Medicago sativa L.), cress (Lepi dium sativum L.) and lettuce (Lactuca sativa L.) seedlings. Significant reductions in the root and hypocotyl growth were observed as the extract concentration in creased in all bioassays. The inhibitory activity of C. junos extract on the growth of test plants was 3.3- to 17.9-fold and 3.6- to 20.6-fold greater than that of C. unshiu and C. sudachi extracts, respectively.The concentration in C. junos was 3.5- and 4.9-fold greater than that in C. unshiu and C. sudachi, respectively. Thus, there was a good correlation- between abscisic acid-b-D-glucopyranosyl ester (ABA-GE) concentrations in C. junos, C. unshiu and C. sudachi fruit peel and the inhibitory activities of their extracts.The concentratio of ABA-GE in C. junos fruit peel was in creased with fruit maturity as growth inhibitory activity of C. junos fruit peel was reported to be in creased with fruit maturity, indicating that the concentrations of A BA-GEin C. junos fruit peel was correlated with growth inhibitory activity of C. junos fruit peel in time course of fruit maturation. These findings suggest that ABA-GE may be involved in the growth in hibitory effect of C. junos, C. unshiu and C. sudachi fruit peel.
6

Anoxia tolerance and ethanol sensitivity of rice and oat coleoptiles

63%
Kato-Noguchi H., Kugimiya T.
Acta Physiologiae Plantarum
|
2002
|
tom 24
|
nr 1
7

Isolation and identification of a plant growth inhibitor from Tinospora tuberculata Beumee

51%
Kato-Noguchi H., Pukclai P., Ohno O., Suenaga K.
Acta Physiologiae Plantarum
|
2014
|
tom 36
|
nr 07
Tinospora tuberculata Beumee has been used widely as a folk medicine and several bioactive compounds have been isolated. However, no herbicidal compound has been reported in this species. Therefore, we investigated the presence of phytotoxins in T. tuberculata. The aqueous methanol extracts of T. tuberculata inhibited the growth of roots and shoots of cress (Lepidum sativum L.), lettuce (Lactuca sativa L.), timothy (Phleum pratense L.) and barnyard grass (Echinochloa crus-galli (L.) Beauv.). The extract was then purified by several chromatographic runs with monitoring the inhibitory activity and the main phytotoxic substance was isolated. The chemical structure of the compound was determined by spectral data as syringin (4-[(1E)-3-Hydroxyprop-1-en-1-yl]-2,6-dimethoxyphenyl β-ᴅ-glucopyranoside). It inhibited the root and shoot growth of all test plant species at concentrations >10 μM. The concentrations required for 50 % inhibition of root and shoot growth of cress and lettuce ranged from 78.2 to 412 μM, and that of timothy and barnyard grass renged from 9.8 to 73.2 μM. Effectiveness of syringin on monocotyledonous (timothy and barnyard grass) plants was greater than that on dicotyledonous (cress and lettuce) plants. These results suggest that syringin may contribute to the allelopathic effect caused by the T. tuberculata extract.
8

Phytotoxicities of the invasive species Plantago major and non-invasive species Plantago asiatica

51%
Kato-Noguchi H., Hamada N., Clements D. R.
Acta Physiologiae Plantarum
|
2015
|
tom 37
|
nr 03
Although Plantago major and Plantago asiatica have similar life-history characteristics, P. major populations expand much more rapidly than P. asiatica in habitats where both species occur. One potential factor contributing to this disparity is the production of phytotoxic compounds. However, the phytotoxic characteristics of P. major and P. asiatica have not yet reported. Therefore, we conducted an investigation of possible phytotoxic compounds with allelopathic activity in both species. Aqueous methanol extracts of both plant species inhibited root and hypocotyl growth of garden cress (Lepidium sativum) in a concentration dependent manner. However, the inhibitory effect of P. major was greater than that of P.asiatica. The extracts were further purified by several chromatographic runs and two main phytotoxic compounds were isolated and identified through spectral analysis as (-)-3-hydroxy-β-ionone and blumenol A. (-)-3-Hydroxy-β-ionone and blumenol A inhibited the growth and germination of garden cress at concentrations greater than 1 and 30 lM, respectively. The level of (-)-3-hydroxy-β-ionone in P. major was 7.2-fold greater than that in P. asiatica, while the level of blumenol A was equal in both plant species. Although these Plantago species produce two main phytotoxic compounds with allelopathic activity, the higher level of (-)-3-hydroxy-β-ionone in P. major may result in it contributing the primary inhibitory effects of the extract of P. major. (-)-3-hydroxy-β-ionone may also serve to distinguish the invasive habit of two species and may be involved in the expansion in habitats of P. major.
9

A potent allelopathic substance in cucumber plants and allelopathy of cucumber

51%
Kato-Noguchi H., Le Thi H., Sasaki H., Suenaga K.
Acta Physiologiae Plantarum
|
2012
|
tom 34
|
nr 5
A potent growth inhibitory substance was isolated from an aqueous methanol extract of cucumber (Cucumis sativus L. cv. Phung Tuong) plants and determined as (2S)-2,3-dihydro-2α-(4-hydroxy-3-methoxyphenyl)-7-methoxy-5-(1,2,3-trihydroxypropyl)benzofuran-3β-methanol (sisymbrifolin) by spectral data. Sisymbrifolin inhibited the growth of cress (Lepidium sativum) and Echinochloa crusgalli seedlings at concentrations greater than 3 µM. Concentration of sisymbrifolin in the cucumber plants was the greatest among four growth inhibitory substances, (S)-2-benzoyloxy-3-phenyl-1-propanol, 9-hydroxy-4,7-megastigmadien-9-one, (6S,7E,9S)-6,9,10-trihydroxy-4,7-megastigmadien-3-one, and sisymbrifolin found in the cucumber, whereas growth inhibitory activity of 9-hydroxy-4,7-megastigmadien-9-one against cress and E. crus-galli was the greatest. Total activities of these substances (concentration of the substance/concentration required 50 % growth inhibition) were 14.4, 13.2, 8.5 and 10.7 for (S)-2-benzoyloxy-3-phenyl-1-propanol, 9-hydroxy-4,7-megastigmadien-9-one,(6S,7E,9S)-6,9,10-trihydroxy-4,7-megastigmadien-3-one and sisymbrifolin, respectively. These total activities were about 100-fold greater than those of phenolic acids, which are often mentioned as putative allelochemicals of plants. Thus, these substances may play important roles in the allelopathy of cucumber plants through the growth inhibition of neighboring plant species.
10

N-Octanoyl tyramine, a phytotoxic compound in the roots of Cymbopogon nardus

51%
Suwitchayanon P., Ohno O., Suenaga K., Kato-Noguchi H.
Acta Physiologiae Plantarum
|
2017
|
tom 39
|
nr 06
11

Phytotoxic property of Piper retrofractum fruit extracts and compounds against the germination and seedling growth of weeds

51%
Suwitchayanon P., Ohno O., Suenaga K., Kato-Noguchi H.
Acta Physiologiae Plantarum
|
2019
|
tom 41
|
nr 03
12

Metabolic adaptation to flooding stress in upland and lowland rice seedlings

51%
Kato-Noguchi H., Ohashi C., Sasaki R.
Acta Physiologiae Plantarum
|
2003
|
tom 25
|
nr 3
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