Endogenous plant hormones of the broad bean, Vicia faba L. (-)-jasmonic acid, a plant growth inhibitor in pericarp

The effect on insect populations of the widespread use of plant growth regulators and herbicides is a neglected field. Fox (1948) reported on a relationship between the use of 2,4-D and wireworm damage to wheat. Putnam (1949) suggested that 2,4-D could be an environmental factor in the ecology of grasshoppers. A recent report (Maxwell and Harwood, 1958) indicates that even slight dosages of 2,4-D increase the rate of reproduction of pea aphids on broad beans. This note is a preliminary report on similar investigations with the pea aphid, Acyrthosiphon pisum (Harris), and broad bean, Vicia faba L.

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EFFECTS OF AMITROLE, ZYTRON AND OTHER HERBICIDES OR PLANT GROWTH REGULATORS ON THE PEA APHID, ACYRTHOSIPHON PISUM (HARRIS), CAGED ON BROAD BEAN, VICIA FABA L.

Canadian Journal of Plant Science ◽

10.4141/cjps61-055 ◽

1961 ◽

Vol 41 (2) ◽

pp. 413-417 ◽

Cited By ~ 11

Author(s):

A. G. Robinson

Keyword(s):

Plant Growth ◽

Vicia Faba ◽

Plant Growth Regulators ◽

Growth Regulators ◽

Active Ingredient ◽

Acyrthosiphon Pisum ◽

Broad Bean ◽

Pea Aphid ◽

Toxic Effects ◽

Vicia Faba L

Thirty herbicides or plant growth regulators were tested against the pea aphid, Acyrthosiphon pisum (Harris), on broad bean, Vicia faba L. When amitrole at 300, 200 and 100 p.p.m. of active ingredient in water was absorbed by the roots, fecundity of the adults was reduced and mortality of their progeny was 100, 100 and 93.9 per cent respectively. No significant effects on fecundity occurred when amitrole was applied to the leaves or as a contact spray on adult aphids. When Zytron at 3,000, 2,000 and 1,000 p.p.m. of active ingredient in water was absorbed by the roots, mortality of adults was 100, 100 and 95 per cent and of their progeny 100, 100 and 98.6 per cent respectively. When Zytron was applied to the leaves at 8,000, 4,000 and 2,000 p.p.m. of active ingredient in water there was a mortality of adults of 85, 70 and 50 per cent and of nymphs 75.1, 45.4 and 29.9 per cent. The lower mortality of nymphs occurred over a 5-day period, indicating that the initial toxic effects from application to the leaves were soon lost. Mortality of nymphs refers to young aphids born alive and killed by the toxic effects of amitrole or Zytron. Twenty-seven of the chemicals showed no effects on aphids caged on treated plants.

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Effect of spraying time and concentration of liquid fertilizer on the growth and yield of broad bean (Vicia faba L.)

Research on Crops ◽

10.31830/2348-7542.2019.072 ◽

2019 ◽

Vol 20 (3) ◽

Keyword(s):

Vicia Faba ◽

Broad Bean ◽

Growth And Yield ◽

Liquid Fertilizer ◽

Vicia Faba L

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Discovery, characterization and functional improvement of kumamonamide as a novel plant growth inhibitor that disturbs plant microtubules

Scientific Reports ◽

10.1038/s41598-021-85501-1 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Takashi Ishida ◽

Haruna Yoshimura ◽

Masatsugu Takekawa ◽

Takumi Higaki ◽

Takashi Ideue ◽

...

Keyword(s):

Plant Growth ◽

Human Life ◽

Growth Inhibitor ◽

Herbicidal Activity ◽

Functional Improvement ◽

Microtubule Inhibitors ◽

Plant Microtubules ◽

Plant Growth Inhibitor ◽

Derivatives Of ◽

Synthetic Intermediate

AbstractThe discovery and useful application of natural products can help improve human life. Chemicals that inhibit plant growth are broadly utilized as herbicides to control weeds. As various types of herbicides are required, the identification of compounds with novel modes of action is desirable. In the present study, we discovered a novelN-alkoxypyrrole compound, kumamonamide fromStreptomyces werraensisMK493-CF1 and established a total synthesis procedure. Resulted in the bioactivity assays, we found that kumamonamic acid, a synthetic intermediate of kumamonamide, is a potential plant growth inhibitor. Further, we developed various derivatives of kumamonamic acid, including a kumamonamic acid nonyloxy derivative (KAND), which displayed high herbicidal activity without adverse effects on HeLa cell growth. We also detected that kumamonamic acid derivatives disturb plant microtubules; and additionally, that KAND affected actin filaments and induced cell death. These multifaceted effects differ from those of known microtubule inhibitors, suggesting a novel mode of action of kumamonamic acid, which represents an important lead for the development of new herbicides.

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