Endogenous factors regulating poor-nutrition stress-induced flowering in pharbitis: The involvement of metabolic pathways regulated by aminooxyacetic acid

Koshio, Aya; Hasegawa, Tomomi; Okada, Rieko; Takeno, Kiyotoshi

doi:10.1016/j.jplph.2014.09.004

Cited by 14 publications

(4 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, the effects of aminooxyacetic acid on Palmer amaranth flowering merit further attention, particularly for late-season emergence of Palmer amaranth. The application of aminooxyacetic acid, an inhibitor of PAL (Koshio et al 2015), could suppress the accumulation of phenylpropanoids (Hirai et al 1995) and induce flowering in Palmer amaranth. This deserves special attention, as seed prevention for Palmer amaranth escapes is of crucial importance, as it can affect the long-term population dynamics of the weed and, consequently, its soil seedbank reserves.…”

Section: Resultsmentioning

confidence: 99%

Differential Response of Palmer Amaranth (Amaranthus palmeri) Gender to Abiotic Stress

Korres¹,

Norsworthy²,

FitzSimons

et al. 2017

Weed Sci

View full text Add to dashboard Cite

Knowledge of Palmer amaranth biology and physiology is essential for the development of effective weed management systems. The aim of this study was to investigate the response of Palmer amaranth gender to nutrient deficiency and light stress. Differential gender responses were observed for all the growth, phenology, and photochemistry parameters measured. Female plants, for example, invested more in height, stem, and total dry weight, whereas male plants invested more in leaf area and leaf dry weight. The growth rate of females was higher than that of male Palmer amaranth plants, although both followed similar declining trends as the experimental period progressed. Initiation of flowering of female plants occurred 6 to 8 d earlier compared with male plants. Nitrogen and to a certain extent phosphorous were the most influential nutrients that affected measured parameters in both Palmer amaranth genders, particularly under high light intensity. Electron transport rate and chlorophyll content of female Palmer amaranth plants compared with male plants was lower at high light intensity in combination with nitrogen and phosphorous deficiencies. There is a potential to manipulate Palmer amaranth population structure by altering microenvironments at the field level.

show abstract

Section: Resultsmentioning

confidence: 99%

Differential Response of Palmer Amaranth (Amaranthus palmeri) Gender to Abiotic Stress

Korres¹,

Norsworthy²,

FitzSimons

et al. 2017

Weed Sci

View full text Add to dashboard Cite

show abstract

“…This process is under the regulation of various stressors and plant signaling molecules, including polyamines (Chen et al., 2019; Takeno, 2016). Putrescine (Put) together with other phytohormones regulates the stress‐induced flowering in Pharbitis (Koshio et al., 2015). In Arabidopsis, the addition of exogenous polyamines to poorly flowering plants promotes their flowering (Applewhite et al., 2010).…”

Section: Discussionmentioning

confidence: 99%

Plant nucleoside N‐ribohydrolases: riboside binding and role in nitrogen storage mobilization

Ľuptáková,

Vigouroux,

Končitíková

et al. 2023

The Plant Journal

View full text Add to dashboard Cite

SUMMARYCells save their energy during nitrogen starvation by selective autophagy of ribosomes and degradation of RNA to ribonucleotides and nucleosides. Nucleosides are hydrolyzed by nucleoside N‐ribohydrolases (nucleosidases, NRHs). Subclass I of NRHs preferentially hydrolyzes the purine ribosides while subclass II is more active towards uridine and xanthosine. Here, we performed a crystallographic and kinetic study to shed light on nucleoside preferences among plant NRHs followed by in vivo metabolomic and phenotyping analyses to reveal the consequences of enhanced nucleoside breakdown. We report the crystal structure of Zea mays NRH2b (subclass II) and NRH3 (subclass I) in complexes with the substrate analog forodesine. Purine and pyrimidine catabolism are inseparable because nucleobase binding in the active site of ZmNRH is mediated via a water network and is thus unspecific. Dexamethasone‐inducible ZmNRH overexpressor lines of Arabidopsis thaliana, as well as double nrh knockout lines of moss Physcomitrium patents, reveal a fine control of adenosine in contrast to other ribosides. ZmNRH overexpressor lines display an accelerated early vegetative phase including faster root and rosette growth upon nitrogen starvation or osmotic stress. Moreover, the lines enter the bolting and flowering phase much earlier. We observe changes in the pathways related to nitrogen‐containing compounds such as β‐alanine and several polyamines, which allow plants to reprogram their metabolism to escape stress. Taken together, crop plant breeding targeting enhanced NRH‐mediated nitrogen recycling could therefore be a strategy to enhance plant growth tolerance and productivity under adverse growth conditions.

show abstract

“…Salicylic acid plays a pivotal role to promote flowering in Pharbitis nil under nutrient deficiency (Wada et al, 2014). Salicylic acid, indole-3-acetic acid, and putrescine work together to promote stress-induced flowering in Ipomoea nil (Koshio et al, 2015).…”

Section: Impact Of Abiotic Stresses On Flowering and Crop Yieldmentioning

confidence: 99%

Role of metabolites in flower development and discovery of compounds controlling flowering time

Chakraborty

Chaudhury

Dutta

et al. 2022

Plant Physiology and Biochemistry

View full text Add to dashboard Cite

Endogenous factors regulating poor-nutrition stress-induced flowering in pharbitis: The involvement of metabolic pathways regulated by aminooxyacetic acid

Cited by 14 publications

References 48 publications

Differential Response of Palmer Amaranth (Amaranthus palmeri) Gender to Abiotic Stress

Differential Response of Palmer Amaranth (Amaranthus palmeri) Gender to Abiotic Stress

Plant nucleoside N‐ribohydrolases: riboside binding and role in nitrogen storage mobilization

Role of metabolites in flower development and discovery of compounds controlling flowering time

Contact Info

Product

Resources

About