Comparison of the intrinsic optimum temperatures for seed germination between two bamboo species based on a thermodynamic model

Shi, Peijian; Quinn, Brady K.; Zhang, Yu; Bao, Xicheng; Lin, Shiqi

doi:10.1016/j.gecco.2019.e00568

Cited by 7 publications

(4 citation statements)

References 64 publications

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“…This temperature-mediated growth response may be due, in part, to the temperature-dependent upregulation of genes related to cell growth and division ( Figure 16, B–E ). Consistent with this, Shi et al (2019) have shown that elevated temperatures within a certain range effectively accelerate the growth and development of Moso bamboo seedlings. Based on our results, we hypothesize that growth rates of Moso bamboo shoots increase in response to elevated temperatures, which may lead to a sudden increase in mechanical pressure (due to rapid increase in shoot volume and rapid loss of sheath cover) on the cell DZ and an early termination of cell division.…”

Section: Discussionsupporting

confidence: 63%

Rapid growth of Moso bamboo (Phyllostachys edulis): Cellular roadmaps, transcriptome dynamics, and environmental factors

et al. 2022

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Moso bamboo (Phyllostachys edulis) shows remarkably rapid growth (114.5 cm/day), but the underlying biological mechanisms remain unclear. After examining more than 12,750 internodes from more than 510 culms from 17 Moso populations, we identified internode 18 as a representative internode for rapid growth. This internode includes a 2-cm cell division zone (DZ), a cell elongation zone up to 12 cm, and a secondary cell wall (SCW) thickening zone. These zones elongated 11.8 cm, produced approximately 570,000,000 cells, and deposited ∼28 mg g−1 dry weight (DW) lignin and ∼44 mg g−1 DW cellulose daily, far exceeding vegetative growth observed in other plants. We used anatomical, mathematical, physiological, and genomic data to characterize development and transcriptional networks during rapid growth in internode 18. Our results suggest that (1) gibberellin may directly trigger the rapid growth of Moso shoots, (2) decreased cytokinin and increased auxin accumulation may trigger cell DZ elongation, and (3) abscisic acid and mechanical pressure may stimulate rapid SCW thickening via MYB83L. We conclude that internode length involves a possible tradeoff mediated by mechanical pressure caused by rapid growth, possibly influenced by environmental temperature and regulated by genes related to cell division and elongation. Our results provide insight into the rapid growth of Moso bamboo.

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Section: Discussionsupporting

confidence: 63%

Rapid growth of Moso bamboo (Phyllostachys edulis): Cellular roadmaps, transcriptome dynamics, and environmental factors

et al. 2022

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“…Considering that, under plant nursery conditions, throughout the whole experimental period, temperatures from 24.14 to 36.51ºC were recorded in the first 15 days (Table 1), while under laboratory conditions the temperature used was 25ºC, it can be observed that temperature constitutes one of the environmental factors that affects the germination potential of nondormant seeds the most, playing an important role in the germination rate (Shi et al, 2019). The success of seed germination in A. puberula under plant nursery conditions indicates the existence of a local adaptation to the natural habitat of the species (López et al, 2019), considering that this species is adapted to regions with dry, semiarid climate, characterized by high temperatures (Sakane and Shepherd, 1986).…”

Section: Discussionmentioning

confidence: 99%

Seed characterization of Allamanda puberula A. DC. and seedling production

et al. 2021

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Allamanda puberula is a native species of the Caatinga biome with ornamental and landscaping potential. However, its potential is little explored due to the lack of information about the biology of its seeds and propagation. In this context, a study was carried out in order to characterize the seeds and their potential to produce seedlings in different containers. The experiments were divided into two phases. The first consisted in the characterization of fruits and seeds by evaluating the number of seeds per fruit, their dimensions (length and width), the weight of a thousand seeds, the number of seeds kg-¹, the degree of moisture, germination and emergence. The second phase consisted in the production of seedlings in a nursery, evaluating the growth over the days after sowing (DAS) (15, 30, 45 and 60 DAS) and the effect of the type of container (trays and tubes) for the formation of the seedlings. The species A. puberula has small seeds and a significant number of seeds per fruit. Apparently, there is no physical impediment or type of dormancy that impairs the germination process of the seeds. Seedlings grown in tubes were better in terms of growth and allocation of biomass. However, the indication of the best cultivation container for A. puberula propagated via seeds will depend on the implantation project and the specific characteristics of the field. The characterization of A. puberula seeds showed satisfactory physiological potential for germination and complete seedling formation in the nursery, enabling success in obtaining seedlings through seminiferous propagation.

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“…According to our observations on several bamboo species, bamboo seeds fall off easily from the spikelets once they mature. It is because bamboo seeds have been hardly gathered that only a few works have, so far, focused on the germination physiology of species such as Dendrocalamus strictus (Chand and Sood, 2008 ; Sarkar et al, 2020 ), Phyllostachys edulis (Shi et al, 2019 ; Emamverdian et al, 2021 ), Chimonobambusa utilis (Shi et al, 2019 ; Zhang et al, 2019 ), and Neosinocalamus affinis (Lin et al, 2019 ). Additionally, seeds of some other bamboo species, such as D. asper, D. giganteus, D. membranaceus, D. minor, D. sinicus, D. yunnanicus, Schizostachyum funghomii, Chimonocalamus pallen, Qiongzhuea tumidissinosa , and Sasa veitchii var.…”

Section: Discussionmentioning

confidence: 99%

Seed Germination and Seedling Growth of Dendrocalumus brandisii in vitro, and the Inhibitory Mechanism of Colchicine

Zhu

Jin

et al. 2021

Front. Plant Sci.

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Bamboos seldom bloom and almost no seeds could be harvested, and, hence, few works are focused on germination physiology. Systematic research on the physiological effects of colchicine on germination and seedling growth of bamboo seeds is lacking. In this study, we finely recorded seed germination and seedling growth of Dendrocalamus brandisii in media supplemented with different colchicine concentrations. Physiological effects and mechanisms of colchicine were analyzed. The results showed that D. brandisii seeds were non-dormant, and seed lots achieved their highest germination rates on the 4th day and finished the whole germination period after 21 days. Colchicine inhibited seed germination and seedling growth but did not change its germination pattern. Seed germination and seedling growth decreased constantly with colchicine concentration. Colchicine showed more negative effects on seedling growth than on seed germination and root growth. High concentrations of colchicine retarded the development of plumules and even caused their aberrant development. Under tissue culture conditions, seed germination, and seedling growth relied mainly on the endogenous starch and soluble sugar degradation, in which α-amylase, STP, and SUSY played the key role. Colchicine inhibited seed germination and seedling growth by suppressing the α-amylase, STP, and SUSY activities. Colchicine showed more negative effects on sucrose degradation than on starch degradation during seed germination and seedling growth. This study provides new basic information on the seedling physiology for the genetic breeding of bamboo plants.

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Comparison of the intrinsic optimum temperatures for seed germination between two bamboo species based on a thermodynamic model

Cited by 7 publications

References 64 publications

Rapid growth of Moso bamboo (Phyllostachys edulis): Cellular roadmaps, transcriptome dynamics, and environmental factors

Rapid growth of Moso bamboo (Phyllostachys edulis): Cellular roadmaps, transcriptome dynamics, and environmental factors

Seed characterization of Allamanda puberula A. DC. and seedling production

Seed Germination and Seedling Growth of Dendrocalumus brandisii in vitro, and the Inhibitory Mechanism of Colchicine

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