Relationship between Endogenous Polyamines and Floral Bud Differentiation in Chrysanthemum morifolium under Short-day Conditions

Guo, Jun-e; Li, Tian; Xianzhi, Sun; Zheng, Chongke; Sun, Xihuan

doi:10.7235/hort.2015.14043

Cited by 9 publications

(6 citation statements)

References 25 publications

(31 reference statements)

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“…After a period of vegetative growth, higher plants enter a period of reproductive growth; that is, leaf bud tissue changes its physiological state to become flower bud tissue, and then develops into a floral organ. This process is called flower bud differentiation (Guo et al, 2015). Flower bud differentiation is a complex process of morphogenesis.…”

Section: Polyamines and Plant Developmentmentioning

confidence: 99%

Polyamine Function in Plants: Metabolism, Regulation on Development, and Roles in Abiotic Stress Responses

et al. 2019

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Polyamines (PAs) are low molecular weight aliphatic nitrogenous bases containing two or more amino groups. They are produced by organisms during metabolism and are present in almost all cells. Because they play important roles in diverse plant growth and developmental processes and in environmental stress responses, they are considered as a new kind of plant biostimulant. With the development of molecular biotechnology techniques, there is increasing evidence that PAs, whether applied exogenously or produced endogenously via genetic engineering, can positively affect plant growth, productivity, and stress tolerance. However, it is still not fully understood how PAs regulate plant growth and stress responses. In this review, we attempt to cover these information gaps and provide a comprehensive and critical assessment of the published literature on the relationships between PAs and plant flowering, embryo development, senescence, and responses to several (mainly abiotic) stresses. The aim of this review is to summarize how PAs improve plants' productivity, and to provide a basis for future research on the mechanism of action of PAs in plant growth and development. Future perspectives for PA research are also suggested.

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Section: Polyamines and Plant Developmentmentioning

confidence: 99%

Polyamine Function in Plants: Metabolism, Regulation on Development, and Roles in Abiotic Stress Responses

et al. 2019

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“…Five key biosynthetic enzymes involved in PA biosynthesis in higher plants have currently been investigated: arginine decarboxylase (ADC), ornithine decarboxylase (ODC), S-adenosylmethionine decarboxylase (SAMDC), Spd synthase (SPDS), and Spm synthase (SPMS) 19 . The significant physiological functions of endogenous PAs in floral induction and flower primordial and organ formation have been confirmed in numerous laboratory studies of horticultural crops 20,21 . The triamine Spd, the most important of the three above-mentioned PAs, is involved in many physiological processes.…”

Section: Introductionmentioning

confidence: 79%

Effect of exogenous spermidine on floral induction, endogenous polyamine and hormone production, and expression of related genes in ‘Fuji’ apple (Malus domestica Borkh.)

Zhang

Yan

Fan

et al. 2019

Sci Rep

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Flower bud formation in ‘Fuji’ apple ( Malus domestica Borkh .) is difficult, which severely constrains commercial production. Spermidine (Spd) plays an important role in floral induction, but the mechanism of its action is incompletely understood. To investigate the effect of Spd on flowering, 6-year-old ‘Fuji’ apple trees were treated with 1 × 10 −5 mol L −1 Spd to study the responses of polyamines [putrescine (Put), Spd and spermine (Spm)], hormones [gibberellins (GA 3 ) and abscisic acid (ABA)], and polyamine-, hormone- and flowering-related genes. Spd application promoted flowering during floral induction by increasing MdGA2ox2 ( gibberellin 2-oxidase ) through GA 3 reduction and increasing MdNCED1 and MdNCED3 ( 9-cis-epoxycarotenoid dioxygenase ) through ABA enrichment during 60 to 80 days after full bloom. The flowering rate as well as the expressions of flower-related genes, except for MdLEY ( LEAFY ), also increased, thereby promoting flowering. In addition, spraying with Spd significantly increased the contents of endogenous polyamines except for Spm in terminal buds by increasing the expressions of polyamine-associated genes. We hypothesize that the contribution of Spd to flowering is related to crosstalk among polyamines, hormone signals, and related gene expressions, which suggests that Spd participates in the apple floral induction process.

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“…after some years each species of higher plants enter a period of reproductive growth where, leaf bud tissue changes its physiological state to become flower bud tissue, and then develops into a floral organ. The biochemical and cellular changes such as we know that florigen level decide the initiation of flowering in trees ,this process is called flower bud differentiation (Guo et al, 2015). Flower bud differentiation is a complex process of morphogenesis.…”

Section: Resultsmentioning

confidence: 99%

Bypassing juvenility, first report of functional flowering and fruiting in six months old seedlings ofCordia myxa L.(lasuda)

Guleria

2020

Preprint

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Cordia myxa L. is a medium-sized broad-leaved deciduous tree of flowering plant belongs to Boraginaceae. It grows naturally from dry desert India up to hills of Himalayas in India up to 1400 m elevation above mean sea level. Fruits are mostly used for pickle making and dried for its use in local off season vegetable recipes since long time. The ripe fruits are full of vitamins and its regular use is supposed to be helpful in good growth of hair. Lasuda preparations are, thus, good for people whose constitution might have tendency to go bald. In addition to fruit, Lasuda bark and roots are also very effective as a local remedy against cough, cold and various other ailments connected with indigestion and throat problems. At regional research laboratory of Dr. Y. S. Parmar University of Horticulture and Forestry, Nauni (India) we are working for the last 12 years on various aspects like propagation and development of promising strains of Cordia myxa. Grafting/budding techniques have been standardized to produce true to type precocious plants which bear flower and fruits in two to three years. However, flowering and fruiting has been observed in six months old seedling of seed origin, which can be ascribed to biochemical or cellular changes. Early flowering and fruiting is a rare phenomenon in tree seedlings of the species which otherwise flower at the age of 7-8 years. This could be very useful for manipulating the species at gene as well as physiological level in future to get early fruits and breeding of the species.

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Relationship between Endogenous Polyamines and Floral Bud Differentiation in Chrysanthemum morifolium under Short-day Conditions

Cited by 9 publications

References 25 publications

Polyamine Function in Plants: Metabolism, Regulation on Development, and Roles in Abiotic Stress Responses

Polyamine Function in Plants: Metabolism, Regulation on Development, and Roles in Abiotic Stress Responses

Effect of exogenous spermidine on floral induction, endogenous polyamine and hormone production, and expression of related genes in ‘Fuji’ apple (Malus domestica Borkh.)

Bypassing juvenility, first report of functional flowering and fruiting in six months old seedlings ofCordia myxa L.(lasuda)

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