Yifu Liu^1,2, Jiazhen Wang^1,2,*, Yao Xiao¹, Xiongwen Shi¹, Yixia Zeng¹

Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2021.015557

Abstract The chemical compositions of tea (Camellia sinensis) are affected by numerous factors, such as cultivar, climate, leaf position, and cultivation pattern. However, under the same conditions, the chemical compositions are mainly determined by varieties. Therefore, we investigated the genetic diversity of chemical compositions of tea tree resources in China to screen excellent germplasm resources. Three chemical compositions index (including chlorophyll index, flavonoid index, and anthocyanin index) and the nitrogen balance index of tea leaves were measured in 102 tea germplasms planted in Chinese Tea Plants Improved Variety Germplasm Resources Nursery (CTPIVGRN) by Dualex on April 15 2019. Results showed that… More >

Xihua Liu¹, Min Luo¹, Xiaofei Chen¹, Changjun Ding^2,*

Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2021.015295

Abstract Bamboos are one of the most beautiful and useful plants on Earth. The genetic background and population structure of bamboos are well known, which helps accelerate the process of artificial domestication of bamboo. Partial sequences of six genes involved in nitrogen use efficiency in 32 different bamboo species were analyzed for occurrence of single nucleotide polymorphisms (SNPs). The nucleotide diversity θw and total nucleotide polymorphisms π_T of the sequenced DNA regions was 0.05137 and 0.03332, respectively. Both πnonsyn /πsyn and Ka/Ks values were <1. The nucleotide sequences of these six genes were inferred to be relatively conserved, and the haplotype… More >

Kapil Gupta¹, Sujit Kumar Mishra², Shubhra Gupta³, Saurabh Pandey⁴, Jogeswar Panigrahi^5,*, Shabir Hussain Wani^6,*

Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2021.015239

Abstract Soybean (Glycine max (L.) Merr) is an agro-economic crop growing across the world to cater nutrition for both human and animal feed due to the high oil and protein content in its edible seeds. The genes and QTLs associated with important agronomic traits in this crop have already been identified and validated for soybean cyst nematode (SCN), Phytophthora root and stem rot, Pythium root rot and aphid resistance, seed quality, nutrient values, and also employed for genetic improvement in soybean. In the last decade, micro RNAs (miRNAs) have been considered the effector molecules, so the detection and characterization of novel… More >

Danaé Samara Sánchez-Sandoval^#, Omar González-Ortega^#, Mara Fernanda Navarro-Martínez, Juan Marcos Castro-Tapia, Ramón Fernando García de la Cruz, Ruth Elena Soria-Guerra^*

Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2021.015087

Abstract The emerging contaminants (ECs) are organic compounds including pharmaceuticals. These products are consumed in large quantities, favoring their continuous entrance to the environment and affecting the health of living beings. Diclofenac is a non-steroidal anti-inflammatory drug with analgesic properties of prolonged release. It is the commonest postoperative analgesic, and it is highly consumed without prescription. In recent years, the capability of microalgae to remove pharmaceuticals in water has been tested as a promising tool. In this work, the removal efficiency of diclofenac (16 µg/mL) by the microalga Nannochloropsis oculata CCAP 186/7 was evaluated. The major nutrient concentrations in Bold’s Basal… More >

Wei Zheng, Zheng Shi, Mei Long, Yuncheng Liao^*

Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2021.015916

Abstract Enhancing photosynthesis efficiency is considered as one of the most crucial targets during wheat breeding. However, the molecular basis underlying high photosynthesis efficiency is not well understood up to now. In this study, we investigated the protein expression profile of wheat Jimai5265yg mutant, which is a yellow-green mutant with chlorophylls b deficiency but high photosynthesis efficiency. Though TMT-labeling quantitative proteomics analysis, a total of 72 differential expressed proteins (DEPs) were obtained between the mutant and wild type (WT). GO analysis found that they significantly enriched in thylakoid membrane, pigment binding, magnesium chelatase activity and response to light intensity. KEGG analysis… More >

Na Kuang, Huabin Zheng, Qiyuan Tang^*, Yuanwei Chen, Xiaomin Wang, Youyi Luo

Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2021.014637

Abstract Rice ratooning, or the production of a second rice crop from stubble after the harvest of the main crop, is considered to be a green and resource-efficient rice production system. The present study was conducted to examine variance in amylose content (AC), grain morphology, crystal structure, and thermal properties of starch between main- and ratoon-season rice of seven varieties. Ratoon-season rice grains had higher ACs and significantly lower transition gelatinization temperatures (To, Tp, and Tc) than did main-season rice grains. The relative crystallinity and lamellar peak intensity of ratoon-season rice starch were 7.89% and 20.38% lower, respectively, than those of… More >

Shaoyi Ruan^1,2,3,#, Haowen Luo^1,2,3,#, Xiaoyan Zeng^1,2,3,#, Runhao Wen^1,2,3, Feida Wu^1,2,3, Xiangru Tang^1,2.*

Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2021.015610

Abstract Vermicompost is an organic fertilizer contains multiple nutrient elements. However, the application of vermicompost in fragrant rice production is rarely reported. In order to study the effects of vermicompost application on fragrant rice (Oryza sativa L.) seedling performances, present study was conducted with two fragrant rice cultivars and four vermicompost rate treatments (0 (CK), 2.5 (Wo1), 5.0 (Wo2) and 10.0 (Wo3) g kg⁻¹ ). The results showed that vermicompost treatments significantly increased dry weight of fragrant rice seedling by 8.31–32.56% compared with CK. 21.10–59.13% higher net photosynthetic rates and 10.66–59.16% higher chlorophyll contents (chlorophyll a, chlorophyll b and total chlorophyll)… More >

Yasir Iftikhar^1,*, Mazhar Abbas², Mustansar Mubeen³, Muhammad Zafar-ul-Hye^4,*, Faheema Bakhtawar¹, Sonum Bashir¹, Ashara Sajid¹, Muhammad Asif Shabbir¹

Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2021.015508

Abstract Tristeza is a devastating viral disease in all the citrus growing countries throughout the world and has killed millions of citrus trees in severely affected orchards. The citrus species grafted on sour orange rootstock are affected by this disease. Predominantly, the sweet orange, grapefruit and lime trees grafted on sour orange exhibit severe symptoms like quick decline, vein clearing, pin holing, bark scaling and degeneration leading to variable symptoms. Symptomatic expression of Citrus tristeza virus (CTV) in different hosts has been attributed to virus isolates which are from severe to mild. Different serological and molecular assays have been deployed to… More >

Lin Zhang^1,2,*, Dong Xie¹, Zhong Bian¹, Yiting Zou¹, Han Zhou¹, Wenlu Cai¹, Hadi Yeilaghi¹, Xiaolei Fan^1,2, Changquan Zhang^1,2, Qiaoquan Liu^1,2,*

Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2021.015229

Abstract In recent years, some super hybrid rice varieties were bred with strong culms and large panicles, which are mainly contributed by the ipa1-2D locus. A gain-of-function allele of OsSPL14 is the ipa1-2D and it can greatly increase the panicle primary branch number. However, the key downstream genes mediating this trait variation are not fully explored. In this study, we developed high-quality near-isogenic lines (NILs) with a difference of only 30 kb chromosomal segment covering the ipa1-2D locus. Using the NILs, we explored the impact of ipa1-2D on five sequential stages of early inflorescence development, and found that the locus can… More >

Luis Alfonso Aguilar Pérez^1,*, Daniel Nieto Ángel^1,*, Moisés Roberto Vallejo Pérez², Daniel Leobardo Ochoa Martínez¹, David Espinosa Victoria³, Andrés Rebolledo Martinez⁴, Abel Rebouças São José⁵

Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2021.015109

Abstract The development and implementation of sustainable and environmentally friendly agricultural practices are indispensable as alternatives to pesticide use and to keep populations of soil-borne plant pathogens at levels that do not affect crop productivity. The present research evaluates the incidence of soil-borne phytopathogens on the pineapple variety MD-2, which was subjected to different treatments: Incorporation of Crotalaria juncea into the soil (organic amendment), application of dolomitic lime to soil (inorganic amendment), and the use of plastic mulch covering the soil. During the crop cycle (15 months), the following variables were evaluated: plant height (cm), fruit weight (kg·plant⁻¹ ), crop yield… More >