Open Access
REVIEW
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
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 series of… More >
Open Access
ARTICLE
Weiwei Lu1,*, Yirui Zhang1, Yixian Yao1, Yuying Wu1, Han Y. H. Chen2, Hailin Zhang3, Jia Yu4, Caiqin Shen5, Qi Liu6, Honghua Ruan1,*
Phyton-International Journal of Experimental Botany, Vol.89, No.1, pp. 13-26, 2020, DOI:10.32604/phyton.2020.09125
Abstract The priming effect (PE) induced by biochar provides a basis for
evaluating its carbon (C) sequestration potential in soils. A 60 days’ laboratory
incubation was conducted, which involved the amendment of biochar (1% of soil
mass) produced from rice straw at 300ºC (B300) and 500ºC (B500) to young (Y)
and old (O) poplar plantation soils, with the aim of studying the responses of
biochar-induced PEs to poplar plantation ages. This incubation included six
treatments: Y + CK (control), Y + B300, Y + B500, O + CK, O + B300, and O +
B500. Carbon dioxide (CO2) emissions were significantly… More >
Open Access
ARTICLE
Dandan Wang1,#, Yulin Guo1,#, Xiaofei Long1, Yan Pan1, Dingjie Yang1, Rui Li1, Ye Lu1, Ying Chen1,2, Jisen Shi1, Jinhui Chen1,*
Phyton-International Journal of Experimental Botany, Vol.89, No.1, pp. 27-34, 2020, DOI:10.32604/phyton.2020.08971
Abstract In order to study how exogenous hormones in C. lanceolata
(gymnosperm) regulate somatic embryogenesis, we measured the endogenous
phytohormones of two genotypes with different somatic embryogenesis
efficiency and found that an increase in endogenous concentrations of IAA and
ABA may be correlated to more efficient somatic embryogenesis. By applying
exogenous spermidine, we found that exogenous hormones may affect somatic
embryogenesis efficiency through affecting the endogenous phytohormone
content. Based on these results, further studies can be conducted whereby the
concentration of exogenous hormones or the levels of endogenous
phytohormones by molecular methods are regulated to promote somatic
embryogenesis. Our research may… More >
Open Access
ARTICLE
Aarón Giovanni Munguía-Rodríguez1,2, José López-Bucio1, Gerardo Rangel Sánchez1,2, León Francisco Ruiz-Herrera1, Yazmín Carreón-Abud2, Miguel Martínez-Trujillo2,*
Phyton-International Journal of Experimental Botany, Vol.89, No.1, pp. 35-43, 2020, DOI:10.32604/phyton.2020.07835
Abstract The post-embryonic growth of the Arabidopsis thaliana root system can
be modified by different types of stress, such as sublethal concentrations of metals,
which may induce the production of reactive oxygen species (ROS). In this study,
the effects of different concentrations of potassium chromate (K₂CrO4) on the
distribution and relative quantity of hydrogen peroxide (H2O2) were determined in
primary and adventitious roots in A. thaliana HyPer line seedlings. This line has a
biosensor that specifically reports H2O2 levels within tissues as fluorescence.
Primary root growth was inhibited at 100 μM Cr (VI); in contrast, adventitious root
formation was induced over… More >
Open Access
ARTICLE
Ning Xuan1, Hua Zhang1, Xu Liu1, Qiang Guo1, Jian Liu2, Fangyin Yao1,*
Phyton-International Journal of Experimental Botany, Vol.89, No.1, pp. 45-55, 2020, DOI:10.32604/phyton.2020.08548
Abstract Rice blast disease is one of the most devastating diseases of rice
(Oryza sativa L.) caused by the fungus Magnaporthe oryzae (M. oryzae), and
neck blast is the most destructive phase of this illness. The underlying molecular
mechanisms of rice blast resistance are not well known. Thus, we collected 150
rice varieties from different ecotypes in China and assessed the rice blast
resistances under the natural conditions that favoured disease development in
Jining, Shandong Province, China in 2017. Results showed that 92 (61.3%) and
58 (38.7%) rice varieties were resistant and susceptible to M. oryzae,
respectively. Among the 150 rice… More >
Open Access
ARTICLE
David Kombi Kaviriri1,3,4,#, Xiaoting Liu1,#, Zuoyi Fan2,#, Jingyuan Wang2, Qi Wang2, Lianfu Wang2, Lixing Wang2, Damase Khasa5, Xiyang Zhao1,*
Phyton-International Journal of Experimental Botany, Vol.89, No.1, pp. 57-69, 2020, DOI:10.32604/phyton.2020.08409
Abstract Genetic parameters were evaluated for growth and cone characteristics
(tree height, diameter at breast height, volume, cone number, thousand seeds
weight and single cone seeds weight) on 86 half-sib families of Pinus koraiensis
aged 31 years. Analyses of variance revealed significant differences (p < 0.001) in
all growth and cone traits among families while no significant differences were
detected among blocks and the interaction between blocks and families. The
average family values for growth traits were 17.22 m, 8.67 cm and 0.43 m3 for tree
height, diameter at breast height and volume, respectively. The average cone
number, thousand seeds weight… More >
Open Access
ARTICLE
Monika Sood1, Shanti S. Sharma1, Joginder Singh1, Ram Prasad2,3,*, Dhriti Kapoor1,*
Phyton-International Journal of Experimental Botany, Vol.89, No.1, pp. 71-86, 2020, DOI:10.32604/phyton.2020.07180
Abstract The heavy metals present in the environment accumulate in the plants
and affect their productivity and yield. By entering the food chain, metals cause
several serious health problems in human beings as well as in other organisms.
Indole acetic acid (IAA) is known to act as a signaling molecule between symbiotic
association of metal accumulating plants and plant growth promoting rhizobacteria
(PGPR). Present study demonstrated a protective role of IAA against surplus Zinc
(Zn)-induced toxicity to Hordeum vulgare seedlings. Elevated Zn concentrations
suppressed the plant growth, caused a reduction in leaf relative water contents
(RWC) and elevated free proline and… More >
Open Access
ARTICLE
Aroosa Kanwal1, Muhammad Bismillah Khan1, Mubshar Hussain1,2,*, Muhammad Naeem1, Muhammad Shahid Rizwan3, Muhammad Zafar-ul-Hye4
Phyton-International Journal of Experimental Botany, Vol.89, No.1, pp. 87-96, 2020, DOI:10.32604/phyton.2020.07845
Abstract Worldwide, the dietary deficiency of zinc (Zn) is prevailing in almost
all arid and semi-arid regions. Zinc deficiency is not only the major constraint of
lower yield, but also dietary Zn deficiency in cereals grains may cause
increasing malnutrition and chronic health problems in human. Exogenous
application of Zn through basal soil nutrition might be a useful option to recover
Zn deficiency in mung bean. Therefore, field study was conducted to optimize
the optimum level and method of Zn nutrition to enhance crop yield and Zn
biofortification of mung bean through basal application. Zinc was applied at 0, 5,
10… More >
Open Access
ARTICLE
Xiaohong Yin1, Hengdong Zhang1, Jiana Chen1, Ruichun Zhang2, Longsheng Liu2, Min Huang1,*, Guanghui Chen1, Yingbin Zou1
Phyton-International Journal of Experimental Botany, Vol.89, No.1, pp. 97-102, 2020, DOI:10.32604/phyton.2020.08093
Abstract Eating quality is of paramount importance to rice (Oryza sativa L.)
consumers and soft rice with low amylose content has become popular in China.
This study was conducted to evaluate the performance of soft rice grown in the
early season (ES) dominated by non-soft rice. Field experiments were conducted
in Yongan and Santang, Hunan Province, China from 2016-2018. Results
showed that grain amylose content in soft rice cultivars was consistently lower in
the ES compared to the late season (LS). The lower grain amylose content in the
ES compared to the LS was partly attributed to higher average daily mean… More >
Open Access
ARTICLE
Maria Khizar1, Urooj Haroon1, Musrat Ali1, Samiah Arif2, Iftikhar Hussain Shah2 , Hassan Javed Chaudhary1, Muhammad Farooq Hussain Munis1,*
Phyton-International Journal of Experimental Botany, Vol.89, No.1, pp. 103-109, 2020, DOI:10.32604/phyton.2020.08010
Abstract Cotton (Gossypium hirsutum L.) is a key fiber crop of great commercial
importance. Numerous phytopathogens decimate crop production by causing
various diseases. During July-August 2018, leaf spot symptoms were recurrently
observed on cotton leaves in Rahim Yar Khan, Pakistan and adjacent areas. Infected
leaf samples were collected and plated on potato dextrose agar (PDA) media.
Causal agent of cotton leaf spot was isolated, characterized and identified as
Aspergillus tubingensis based on morphological and microscopic observations.
Conclusive identification of pathogen was done on the comparative molecular
analysis of CaM and β-tubulin gene sequences. BLAST analysis of both sequenced
genes showed 99%… More >
Open Access
ARTICLE
Paul Chege1,2, Andrea Palágyi2, Csaba Lantos2, Erzsébet Kiss1, János Pauk2,*
Phyton-International Journal of Experimental Botany, Vol.89, No.1, pp. 111-119, 2020, DOI:10.32604/phyton.2020.07554
Abstract Many attempts on optimization of sorghum [Sorghum bicolor (L.)
Moench] tissue culture induction media have been made, but the culture system
remains with some bottlenecks compared to that of other crops. This study aimed
at assessing the suitability of various induction media to produce embryogenic
callus (yellow and friable) with high induction rates and reduced phenolic
exudation. The six culture medium modifications: 3 based on Murashige and
Skoog (MS) medium and one each based on Chu N6, Gamborg B5 and 190-2
media respectively were applied in the culture of mature embryos from 10
sorghum genotypes. Although there was a genotype… More >
Open Access
ARTICLE
Peng Jiao1,#, Ruiqi Ma2,#, Zhuo Qi1, Zhenzhong Jiang1, Siyan Liu1, Jing Qu3, Shuyan Guan1,*, Yiyong Ma3,*
Phyton-International Journal of Experimental Botany, Vol.89, No.1, pp. 121-130, 2020, DOI:10.32604/phyton.2020.07980
Abstract This research uses the immature embryos of inbred maize lines
(GSH9901, Hi01, Hi02, and Chang 7-2) as receptor materials to establish the callus
induction system. These inbred lines provide the receptor materials for the genetic
regeneration of maize and the verification of the genetic functions of maize. The
factor experiment and orthogonal experiments were used to investigate the impacts
of different genotypes, immature embryo size, shield orientation, 2, 4-D
concentration, proline concentration, and folic acid concentration on the induction
rate of embryogenic callus tissue. A sensitivity experiment testing glyphosate (Bar)
and an antibiotic (Cefotaxime sodium) were also conducted. The results… More >
Open Access
ARTICLE
Swastika Paul1,3, Xuemei Zhang1, Yongping Yang2, Changan Geng1,*
Phyton-International Journal of Experimental Botany, Vol.89, No.1, pp. 131-136, 2020, DOI:10.32604/phyton.2020.08328
Abstract Brassica rapa var. rapa (turnip) is an important crop in Qinghai-Tibet
Plateau (QTP) with anti-hypoxic effect. Turnip is rich in glucosinolates,
isothiocyanates and phenolic compounds with diverse biological activities,
involving anti-oxidant, anti-tumor, anti-diabetic, anti-inflammatory, anti-microbial,
hypolipidemic, cardioprotective, hepatoprotective, nephroprotective and analgesic
properties. In this study, the ethyl acetate (EtOAc) and butanol parts of Brassica
rapa were first revealed with inhibitory effects on α-glucosidase, whereas the water
part was inactive. Subsequent bioassay-guided isolation on the EtOAc and butanol
parts yielded 12 compounds, involving three indole derivatives, indole-3-
acetonitrile (1) 4-methoxyindole-3-acetonitrile (2) and indole-3-aldehyde (3) two
flavonoids, liquiritin (4) and licochalcone A… More >
Open Access
ARTICLE
Aknur Turgumbayeva1,2, Gulbaram Ustenova1, Ubaidilla Datkhayev1, Khairolla Rahimov3, Silvijus Abramavicius4,5, Agile Tunaityte4,*, Kairat Zhakipbekov1,6, Kaldanay Kozhanova1, Saken Tulemissov7, OzikhanUstenova8, Gulmira Datkayeva9, Edgaras Stankevicius1,10
Phyton-International Journal of Experimental Botany, Vol.89, No.1, pp. 137-146, 2020, DOI:10.32604/phyton.2020.07665
Abstract In this research we present that Carthamus Tinctorius L. (gen.
Asteraceae, otherwise known as Safflower) (Fig. 1) may contain agents active in
Cryptococcal infections, malaria and Leishmaniasis, as treatment options are
becoming scarce due to drug resistance development. Phytochemistry and
pharmacological activities (antimicrobial, antimalarial, antileishmanial) of C. tinctorius L. were analyzed. The composition of volatile oil of safflower dried
flowers was analyzed by gas chromatography-mass spectrophotometry with
flame ionization detector (GC-FID) and in vitro sensitivity assays were
performed to assess biological activity. 8 known and 3 unknown compounds
were detected in the extract (Fig. 1). Then the Safflower ointment was… More >
Open Access
ARTICLE
Jiqiang Zhang1, Ziru Niu1,2, Tianhua Li1,2, Yanqiang Wu1, Rui Xi1, Yuhua Li1, Guanghua Li3, Jialin Hou1,2,*
Phyton-International Journal of Experimental Botany, Vol.89, No.1, pp. 147-166, 2020, DOI:10.32604/phyton.2020.08479
Abstract Considering the current low level of mechanization for domestic green
onion planting and the high labor intensity of artificial planting, a 2ZYX-2 green
onion ditching and transplanting machine, which can complete ditching, ridging,
transplanting, repression, soil covering and other operations, is designed in this
study. The Central Composite test design method was carried out with the speed
of the transplanting machine, the depth of the opener and the horizontal position
of the opener as the experimental factors and with the qualification ratio of
perpendicularity, the variation coefficient of the plant spacing and the
qualification ratio of the planting depth as… More >
Login
Register
Submit a Paper
Propose a Special lssue