Cytokinins as Metabolic Stimulants Which Induce Pod Set

Dyer, Daniel J.; Cotterman, Josephine C.; Cotterman, C. Daniel; Kerr, Phillip S.; Carlson, Dale R.

doi:10.1007/978-3-642-74545-4_53

Cited by 12 publications

(7 citation statements)

References 18 publications

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“…Many investigators have reported that Mn, Zn, and Fe have important and substantial health benefits, such as a decrease in cancer risk and reinforcement of the immune system. It is known that cytokinins contribute to mediating plant growth through their role in creating source-sink relationships in plants in relation to both carbohydrates and amino acids in the context of plant biotic interactions for growth enhancement [72]. Concordant results were obtained by [19,55,59] when applying MLE on maize and rocket, respectively.…”

Section: Effect Of Biostimulant Application On Chemical Composition Of Snap Beanmentioning

confidence: 90%

How Does the Addition of Biostimulants Affect the Growth, Yield, and Quality Parameters of the Snap Bean (Phaseolus vulgaris L.)? How Is This Reflected in Its Nutritional Value?

2022

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Recently, the use of biostimulants as natural and eco-friendly fertilizers has received increasing attention because of their efficiency in terms of improving crops’ qualitative and quantitative parameters, i.e., growth, yield, and chemical composition. We studied the effect of four biostimulants—humic acid (20 g/L), vermicompost tea (15 mL/L), moringa leaf extract (1:30 v/v), and yeast extract (5 g/L), with tap water as a control treatment—on the qualitative and quantitative characteristics of snap beans. The experiment was designed using a complete randomized block with triplicates. The results showed a significant improvement in treated plant performance (growth and yield), chlorophyll, and chemical composition compared to untreated plants. Using moringa leaf extract increased the plant height, number of leaves and branches/plant, and fresh and dry weight. Additionally, the diameter of the treated plant stems and the quality of the crop and pods were also significantly higher than those of plants treated with vermicompost or humic acid extract. It is also noted that the profile of amino acids was improved using all tested biostimulants. This leads to the conclusion that the addition of moringa leaf extract and vermicompost tea not only positively affects the qualitative and quantitative properties of snap bean but is also reflected in its nutritional value as a plant-based food.

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Section: Effect Of Biostimulant Application On Chemical Composition Of Snap Beanmentioning

confidence: 90%

How Does the Addition of Biostimulants Affect the Growth, Yield, and Quality Parameters of the Snap Bean (Phaseolus vulgaris L.)? How Is This Reflected in Its Nutritional Value?

2022

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“…Gibberellins are known to promote fresh weight but not dry weights (Salisbury and Ross, 1986). The high retention in dry matter caused by Accel treatment may be attributed to cytokinins (BA) ability to promote carbohydrate metabolism and create new source -sink relationship (Dyer et al, 1990). …”

Section: Discussionmentioning

confidence: 99%

Effect of accel on the vase life and post harvest quality of alstroemeria (alstroemeria aurantiaca l.) cut flowers

Mutui¹,

Emongor²,

Hutchinson³

2009

African Journal of Science and Technology

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“…In soybean, CKs have been shown to play an important role during flower and pod development. Exogenous benzyladenine (BA) applications to the raceme decrease abortion of flowers and/or pods (Dyer et al 1988;Peterson et al 1990; Mosjidis et al 1993;Reese et al 1995). Likewise, evidence supports a function for CKs in the regulation of flowering and seed set in soybean (Huff and Dybing 1980;Ghiasi et al 1987;Peterson et al 1990;Wiebold 1990; Mosjidis et al 1993;Reese et al 1995;Nagel et al 2001).…”

Section: Introductionmentioning

confidence: 92%

A member of the maize isopentenyl transferase gene family, Zea mays isopentenyl transferase 2 (ZmIPT2), encodes a cytokinin biosynthetic enzyme expressed during kernel development

Brugière

Humbert

Rizzo³

et al. 2008

Plant Mol Biol

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Cytokinins (CKs) are plant hormones that regulate a large number of processes associated with plant growth and development such as induction of stomata opening, delayed senescence, suppression of auxin-induced apical dominance, signaling of nitrogen availability, differentiation of plastids and control of sink strength. In maize, CKs are thought to play an important role in establishing seed size and increasing seed set under normal and unfavorable environmental conditions therefore influencing yield. In recent years, the discovery of isopentenyl transferase (IPT) genes in plants has shed light on the CK biosynthesis pathway in plants. In an effort to increase our understanding of the role played by CKs in maize development and sink-strength, we identified several putative IPT genes using a bioinformatics approach. We focused our attention on one gene in particular, ZmIPT2, because of its strong expression in developing kernels. The expression of the gene and its product overlays the change in CK levels in developing kernels suggesting a major role in CK biosynthesis for kernel development. We demonstrate that at 8-10 days after pollination (DAP) the endosperm and especially the basal transfer cell layer (BETL) is a major site of ZmIPT2 expression, and that this expression persists in the BETL and the developing embryo into later kernel development stages. We show that ectopic expression of ZmIPT2 in calli and in planta created phenotypes consistent with CK overproduction. We also show that ZmIPT2 preferentially uses ADP and ATP over AMP as the substrates for dimethylallyl diphosphate (DMAPP) IPT activity. The expression pattern of ZmIPT2 in the BETL, endosperm and embryo during kernel development will be discussed with an emphasis on the suggested role of CKs in determining sink-strength and grain production in crop plants.

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Cytokinins as Metabolic Stimulants Which Induce Pod Set

Cited by 12 publications

References 18 publications

How Does the Addition of Biostimulants Affect the Growth, Yield, and Quality Parameters of the Snap Bean (Phaseolus vulgaris L.)? How Is This Reflected in Its Nutritional Value?

How Does the Addition of Biostimulants Affect the Growth, Yield, and Quality Parameters of the Snap Bean (Phaseolus vulgaris L.)? How Is This Reflected in Its Nutritional Value?

Effect of accel on the vase life and post harvest quality of alstroemeria (alstroemeria aurantiaca l.) cut flowers

A member of the maize isopentenyl transferase gene family, Zea mays isopentenyl transferase 2 (ZmIPT2), encodes a cytokinin biosynthetic enzyme expressed during kernel development

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