Yiwei Cao, Delight Hwarari, Yasmina Radani, Yuanlin Guan, Liming Yang^*

Phyton-International Journal of Experimental Botany, Vol.92, No.9, pp. 2665-2683, 2023, DOI:10.32604/phyton.2023.024929 - 28 July 2023

Abstract Low temperature stress is one of the most important factors limiting plant growth and geographical distribution. In order to adapt to low temperature, plants have evolved strategies to acquire cold tolerance, known as, cold acclimation. Current molecular and genomic studies have reported that annual herbaceous and perennial woody plants share similar cold acclimation mechanisms. However, woody perennials also require extra resilience to survive cold winters. Thus, trees have acquired complex dynamic processes to control the development of dormancy and cold resistance, ensuring successful tolerance during the coldest winter season. In this review, we systemically described More >

Sasa Jing¹, Yuan Tian¹, Heng Zhang², John T. Hancock³, Ying Zhu^2,*, Ping Li^1,*

Phyton-International Journal of Experimental Botany, Vol.92, No.4, pp. 1203-1214, 2023, DOI:10.32604/phyton.2023.026305 - 06 January 2023

Abstract The crop seeds have been a staple food for humans, and seed yield is important for sustaining agriculture development and enhancing human adaptability to food risks. The phenomenon of pre-harvest sprouting (PHS), caused by seed dormancy deficiency, and the phenomenon of low seedling emergence caused by seed deep dormancy, will lead to a reduction in agricultural production. Therefore, it is particularly important to understand the regulation mechanisms of seed dormancy. There are many studies on the regulation of seed dormancy in rice, but there are few studies on the regulation of seed dormancy in other More >

Lin Feng¹, Ziming Gong^1,*, Guofeng Liu², Yanli Liu¹

Phyton-International Journal of Experimental Botany, Vol.90, No.1, pp. 65-73, 2021, DOI:10.32604/phyton.2020.012303 - 20 November 2020

Abstract Tea (Camellia sinensis [L.] O. Kuntze.) is an important cash crop, which mainly uses tender shoots and young leaves for manufacturing. Due to the marketing characteristic that earlier made tea has higher price, the time of the breaking of winter dormancy buds in spring is extremely important in tea industry. Strigolactones are a group of carotenoids-derived metabolites which regulates bud outgrowth, shoot branching, tiller angle and environmental stress responses. The role of strigolactones in tea plant was briefly summarized in the current review, with an emphasis of the association of strigolactones on bud ecodormancy and shoot More >

Thiresia-Teresa Tzatzani¹, Evangelia Basdeki², Evangelia-Vasiliki Ladikou³, Marios-Ioannis N. Sotiras³, Georgios Panagiotakis⁴, Sryridon Lionakis⁴, Ioannis E. Papadakis^3,*

Phyton-International Journal of Experimental Botany, Vol.89, No.3, pp. 645-656, 2020, DOI:10.32604/phyton.2020.010532 - 22 June 2020

Abstract The purpose of this study was to investigate the effects of various presowing treatments on the germinability (final germination percentage) and germination rate of loquat seeds in order to increase seedling production in nurseries (applied research) as well as provide answers for important physiological issues related to loquat seeds and their seed coat (basic research). Three experiments were carried out with various pre-sowing treatments. These treatments included full or partial removal of seed coat (perisperm), partial cutting of cotyledons as well as moist chilling at 5°C for 13 days and/or soaking the seeds in water… More >

Danni He, Guoli Deng, Songpei Ying, Wenjuan Yang, Jiali Wei, Ping Li^*

Phyton-International Journal of Experimental Botany, Vol.89, No.3, pp. 633-643, 2020, DOI:10.32604/phyton.2020.010498 - 22 June 2020

Abstract Primary seed dormancy is an adaptive strategy that prevents germination for viable seeds in harsh environment, ensuring seeds germination under favorable condition. Accurately inducing seeds germination in a controllable manner is important for crop production. Thus searching the chemicals that efficiently breaks seed dormancy is valuable. DOG1 protein abundance in the freshly harvested seed is high, and its level is correlated to seed dormancy intensity, thus DOG1 is regarded as the timer to evaluate the seed dormancy degree. In this study, we found the carbon monoxide (CO) donor treatment, the transgenic line with high CO… More >

Ping Li^*, Huanhuan Ni, Songbei Ying, Jiali Wei, Xiangyang Hu

Phyton-International Journal of Experimental Botany, Vol.89, No.1, pp. 1-12, 2020, DOI:10.32604/phyton.2020.09817 - 01 March 2020

Abstract Primary seed dormancy is a critical trait for sustainable agricultural development, ensuring seed germination under favorable conditions. The induction, maintenance and release of seed dormancy is a complicated physiological process that is strictly controlled by a variety of endogenous signals and environmental factors. In Arabidopsis, DOG1 (DELAY OF GERMINATION 1) is identi- fied as the main quantitative trait locus (QTL) of seed dormancy, which contributes to deep dormancy in the Cvi ecotype. In recent years, considerable progress has been made to elucidate the molecular regulatory mechanism by which DOG1 controls seed dormancy. In this review, we describe a More >

Chichizola GA, AE Rovere, SL Gonzalez

Phyton-International Journal of Experimental Botany, Vol.87, pp. 265-273, 2018, DOI:10.32604/phyton.2018.87.265

Abstract The Onagraceae are a well-defined family of flowering plants much used by man. Many representatives of this group, which contains 75 species belonging to 8 genera, are indigenous to Argentina, and 19% of these are commonly found throughout the country. Many Onagraceae are ruderal and promote the subsequent establishment of other species, thus contributing to the restoration of degraded areas. Since it is important to know the characteristics of seeds to be used in restoration projects, we studied the basic germination physiology of Oenothera odorata Jacq., a ruderal plant indigenous to Argentina. Material was collected from… More >

Masini ACA¹, AE Rovere¹, GI Pirk^1,2

Phyton-International Journal of Experimental Botany, Vol.85, pp. 314-323, 2016, DOI:10.32604/phyton.2016.85.314

Abstract Asteraceae is the most diverse family of vascular plants in the world and the most numerous in Argentina, with 26% of endemic species. Many Asteraceae are pioneer species facilitating the establishment of other species, and several have been employed in restoration. Knowing the characteristics of seeds and their germination is crucial to employ them in restoration projects; hence this study explored basic physiological aspects of the germination of Gutierrezia solbrigii Cabrera and Senecio subulatus D. Don ex Hook. & Arn. var. erectus Hook. & Arn., two endemic shrubs of Argentina, distributed in arid Patagonia. Seeds came from the… More >

Liu XL^1,2, JH Li^2,3, JY Zhu², YF Yang¹

Phyton-International Journal of Experimental Botany, Vol.85, pp. 297-304, 2016, DOI:10.32604/phyton.2016.85.297

Abstract Spring ephemeroid plants complete their aboveground reproduction and growth during the short growing season, and may go dormant subsequently underground. Little is known about the underground dormancy and biological activities of the plants. In this study, we observed organogenesis and growth rhythm of rhizome buds of Adonis amurensis Regel et Radde, a spring ephemeroid plant from the Changbai Mountains in northeastern China. Our results showed that A. amurensis did not go through summer dormancy, but started producing mixed buds on rhizomes soon after the aboveground parts had died. The buds grew in length and diameter following an More >

Galussi AA¹, JA Argüello², MM Cerana², M Maximino³, ME Moya¹

Phyton-International Journal of Experimental Botany, Vol.84, No.1, pp. 163-175, 2015, DOI:10.32604/phyton.2015.84.163

Abstract Seeds of alfalfa (Medicago sativa L.) can exhibit seedcoat imposed dormancy, which produces hard seeds within a seed lot. These seeds do not germinate because they do not imbibe water due to a barrier to water entry in the seed coat. The aim of this work was to analyze the anatomical and chemical characteristics of the testa of alfalfa seeds with respect to water permeability levels. The anatomy of seeds of the cv. Baralfa 85 was studied and structural substances, polyphenols, tannins and cutin present in the testa of seeds of different water permeability levels were… More >