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1. Polar auxin transport May Be responsive to specific features of flavonoid structure

Author:
Zhang, Xudong; Huang, Xing; Li, Yan; Tao, Faqing; Zhao, Qinshi; Li, Weiqi
Source:
Phytochemistry 2021 v.185 pp. 112702
ISSN:
0031-9422
Subject:
root growth,   etc   ; auxins; meristems; naringenin; rutin;     Show all 5 Subjects
Abstract:
... Polar auxin transport (PAT) is essential to control root growth. Flavonoids are widely thought to be PAT inhibitors leading to short root developments. However, we found that the flavonoids scutellarin and scutellarein, which both have a 6-hydroxyl group unlike the structure of known flavonoid-PAT-inhibitors, promote PAT in roots. They increase root length; rescue the short roots induced by the PA ...
DOI:
10.1016/j.phytochem.2021.112702

2. Comparison of ensemble data assimilation methods for the estimation of time-varying soil hydraulic parameters

Author:
Liu, Kun; Huang, Guanhua; Šimůnek, Jiří; Xu, Xu; Xiong, Yunwu; Huang, Quanzhong
Source:
Journal of hydrology 2021 v.594 pp. 125729
ISSN:
0022-1694
Subject:
root growth,   etc   ; microirrigation; soil water; tillage;     Show all 4 Subjects
Abstract:
... The hydraulic properties of the soil top layer may change during the growth period due to various factors such as wetting and drying cycles, tillage practices, and crop root growth. In this study, the potential of the assimilation method to estimate time-varying soil hydraulic parameters is explored. Four assimilation schemes, including the simultaneous update state augmentation method, the partit ...
DOI:
10.1016/j.jhydrol.2020.125729

3. A transceptor–channel complex couples nitrate sensing to calcium signaling in Arabidopsis

Author:
Wang, Xiaohan; Feng, Changxin; Tian, LiLi; Hou, Congcong; Tian, Wang; Hu, Bin; Zhang, Qian; Ren, Zhijie; Niu, Qi; Song, Jiali; Kong, Dongdong; Liu, Liangyu; He, Yikun; Ma, Ligeng; Chu, Chengcai; Luan, Sheng; Li, Legong
Source:
Molecular plant 2021 v.14 no.5 pp. 774-786
ISSN:
1674-2052
Subject:
root growth,   etc   ; Arabidopsis; calcium; mutants; nitrates; phenotype; plasma membrane;     Show all 7 Subjects
Abstract:
... Nitrate-induced Ca²⁺ signaling is crucial for the primary nitrate response in plants. However, the molecular mechanism underlying the generation of the nitrate-specific calcium signature remains unknown. We report here that a cyclic nucleotide-gated channel (CNGC) protein, CNGC15, and the nitrate transceptor (NRT1.1) constitute a molecular switch that controls calcium influx depending on nitrate l ...
DOI:
10.1016/j.molp.2021.02.005

4. H2S action in plant life cycle

Author:
Zhou, Mingjian; Zhou, Heng; Shen, Jie; Zhang, Zhirong; Gotor, Cecilia; Romero, Luis C.; Yuan, Xingxing; Xie, Yanjie
Source:
Plant growth regulation 2021 v.94 no.1 pp. 1-9
ISSN:
0167-6903
Subject:
root growth,   etc   ; enzymes; gene expression; hydrogen sulfide; seed germination; toxicity;     Show all 6 Subjects
Abstract:
... The healthy growth of plants is inseparable from the joint action of many metabolic regulators, particularly the signaling molecules. Hydrogen sulfide (H₂S), which was considered toxic previously, has now been regarded as a burgeoning endogenous gaseous transmitter. H₂S is involved in the whole life cycle of plants orderly, regulating essential plant processes such as seed germination, root growth ...
DOI:
10.1007/s10725-021-00693-w

5. Light Spectra during Somatic Embryogenesis of Norway Spruce—Impact on Growth, Embryo Productivity, and Embling Survival

Author:
Varis, Saila; Tikkinen, Mikko; Välimäki, Sakari; Aronen, Tuija
Source:
Forests 2021 v.12 no.3
ISSN:
1999-4907
Subject:
root growth,   etc   ; Picea abies; genotype; germination; somatic embryogenesis; wavelengths; Norway;     Show all 7 Subjects
Abstract:
... For Norway spruce (Picea abies (L.) Karst.) somatic embryogenesis (SE) culture conditions throughout the propagation process affect the final result. Many critical phases can be identified, and all of them cumulatively increase the production costs of SE plants if they cannot be controlled. In order to determine the best lighting protocol for each SE step, Norway spruce embryogenic tissue (ET) was ...
DOI:
10.3390/f12030301

6. An ATP binding cassette transporter HvABCB25 confers aluminum detoxification in wild barley

Author:
Liu, Wenxing; Feng, Xue; Cao, Fangbin; Wu, Dezhi; Zhang, Guoping; Vincze, Eva; Wang, Yizhou; Chen, Zhong-Hua; Wu, Feibo
Source:
Journal of hazardous materials 2021 v.401 pp. 123371
ISSN:
0304-3894
Subject:
root growth,   etc   ; aluminum; barley; cytosol; sap; tonoplast; transcriptome; vacuoles;     Show all 8 Subjects
Abstract:
... Aluminum (Al) stress in acid soils is one of the major factors limiting crop productivity. ATP binding cassette (ABC) transporters have numerous roles in plants, but the link between ABCB protein subfamily and plant Al tolerance is still elusive. Here, we identified and characterized a novel tonoplast HvABCB25 in barley root cells. HvABCB25 was up-regulated in the transcriptome of Al-tolerant wild ...
DOI:
10.1016/j.jhazmat.2020.123371

7. Receptor-like Kinases in Root Development: Current Progress and Future Directions

Author:
Ou, Yang; Kui, Hong; Li, Jia
Source:
Molecular plant 2021 v.14 no.1 pp. 166-185
ISSN:
1674-2052
Subject:
root growth,   etc   ; Arabidopsis; growth and development; phosphotransferases (kinases); roots;     Show all 5 Subjects
Abstract:
... Cell-to-cell and cell-to-environment communications are critical to the growth and development of plants. Cell surface-localized receptor-like kinases (RLKs) are mainly involved in sensing various extracellular signals to initiate their corresponding cellular responses. As important vegetative organs for higher plants to adapt to a terrestrial living situation, roots play a critical role for the s ...
DOI:
10.1016/j.molp.2020.12.004

8. Lateral mechanical impedance rather than frontal promotes cortical expansion of roots

Author:
Feng, Xuanjun; Xiong, Jing; Hu, Yue; Pan, Liteng; Liao, Zhengqiao; Zhang, Xuemei; Guo, Wei; Wu, Fengkai; Xu, Jie; Hu, Erliang; Lan, Hai; Lu, Yanli
Source:
Plant signaling & behavior 2020 v.15 no.6 pp. 1757918
ISSN:
1559-2324
Subject:
root growth,   etc   ; behavior; cortex; stele;     Show all 4 Subjects
Abstract:
... It has long been considered that mechanical impedance on root will restrict root elongation and consequently promote radial growth. When seedlings grew in sands, we did observe radial expansion of roots and it, however, arose before elongation restriction. Mechanical impedance of sands can be classified into frontal- and lateral-type based on the interaction site of root. Therefore, we suspected t ...
DOI:
10.1080/15592324.2020.1757918

9. Dose-dependent responses of Arabidopsis thaliana to zinc are mediated by auxin homeostasis and transport

Author:
Wang, Jiehua; Moeen-ud-din, Muhammad; Yang, Shaohui
Source:
Environmental and experimental botany 2021 v.189 pp. 104554
ISSN:
0098-8472
Subject:
root growth,   etc   ; Arabidopsis thaliana; dose response; growth and development; homeostasis; hypersensitivity; phenotype; root meristems; zinc;     Show all 9 Subjects
Abstract:
... Zinc is an essential element for plant; however, in excess it could cause adverse effects on plant growth and productivity. Plants have evolved various regulatory mechanisms to optimize their growth and development at different zinc concentrations. In this work, we elucidated the role of auxin homeostasis and transport in the dose-dependent responses to zinc in Arabidopsis thaliana. The results sh ...
DOI:
10.1016/j.envexpbot.2021.104554

10. Do essential elements (P and Fe) have mitigation roles in the toxicity of individual and binary mixture of yttrium and cerium to Triticum aestivum?

Author:
Gong, Bing; He, Erkai; Romero-Freire, Ana; Ruan, Jujun; Yang, Wenjun; Zhang, Peihua; Qiu, Hao
Source:
Journal of hazardous materials 2021 v.416 pp. 125761
ISSN:
0304-3894
Subject:
root growth,   etc   ; Triticum aestivum; bioavailability; cerium; median effective concentration; models; nutritional status; toxicity; yttrium;     Show all 9 Subjects
Abstract:
... Essential elements can affect the bioavailability, uptake, and toxicity of metals. However, hardly any research has focused on the roles of essential elements on the toxicity of rare earth metals. Here we examined how P and Fe modified the individual and binary toxicity of Y and Ce to Triticum aestivum, respectively. Standard root elongation tests were used to quantify the toxicity of both single ...
DOI:
10.1016/j.jhazmat.2021.125761

11. Long-distance blue light signalling regulates phosphate deficiency-induced primary root growth inhibition

Author:
Gao, Yi-Qun; Bu, Ling-Hua; Han, Mei-Ling; Wang, Ya-Ling; Li, Zong-Yun; Liu, Hong-Tao; Chao, Dai-Yin
Source:
Molecular plant 2021
ISSN:
1674-2052
Subject:
root growth,   etc   ; blue light; cryptochromes; growth retardation; nutrient uptake; phosphates; rhizosphere; root systems; soil; starvation;     Show all 10 Subjects
Abstract:
... Although roots are mainly embedded in the soil, recent studies revealed that light regulates mineral nutrient uptake by roots. However, it remains unclear whether the root system architecture (RSA) change in response to different rhizosphere nutrient statuses involves light signalling. Here we report that blue light regulates primary root growth inhibition under phosphate-deficient conditions thro ...
DOI:
10.1016/j.molp.2021.06.002

12. Ammonium overaccumulation in senescent leaves as a novel exclusion mechanism to avoid toxicity in photosynthetically active rice leaves

Author:
Sousa, Rikaely T.; Paiva, Ana L.S.; Carvalho, Fabricio E.L.; Alencar, Vicente T.C.B.; Silveira, Joaquim A.G.
Source:
Environmental and experimental botany 2021 v.186 pp. 104452
ISSN:
0098-8472
Subject:
root growth,   etc   ; ammonium; cultivars; death; leaves; nitrates; nitrogen; oxidative stress; peroxidases; rice; toxicity;     Show all 11 Subjects
Abstract:
... High ammonium concentration is toxic for most plant species, but some rice cultivars are tolerant by mechanisms not understood yet. We tested the hypothesis that NH₄⁺-tolerance could be associated with an exclusion mechanism involving ammonium deposition on the oldest leaves after triggering localized senescence. An ammonium-tolerant cultivar was exposed to increasing ammonium (NH₄⁺) concentration ...
DOI:
10.1016/j.envexpbot.2021.104452

13. Intraspecific interactions in the annual legume Medicago minima are shaped by both genetic variation for competitive ability and reduced competition among kin

Author:
Tomiolo, Sara; Thomas, Claire; Jespersen, Michael K.; Damgaard, Christian F.; Ehlers, Bodil K.
Source:
Basic and applied ecology 2021 v.53 pp. 49-61
ISSN:
1439-1791
Subject:
root growth,   etc   ; Medicago; activated carbon; applied ecology; asymmetry; biomass; genetic variation; genotype; greenhouses; legumes;     Show all 10 Subjects
Abstract:
... Documenting if plants exhibit kin competition avoidance in intraspecific plant interactions is relevant both to improve crop growth, and to understand diversity and composition in natural plant communities. However, a number of confounding mechanisms complicates detecting kin competition avoidance from experiments comparing plants growing with kin and non-kin neighbors. We conducted complementary ...
DOI:
10.1016/j.baae.2021.03.003

14. Physio‐morphological, biochemical, and anatomical traits of drought‐tolerant and susceptible sorghum cultivars under pre‐ and post‐anthesis drought

Author:
Akman, Hayati; Zhang, Cankui; Ejeta, Gebisa
Source:
Physiologia plantarum 2021 v.172 no.2 pp. 912-921
ISSN:
0031-9317
Subject:
root growth,   etc   ; biomass; cultivars; drought; drought tolerance; osmotic pressure; photosynthesis; starch; stomatal conductance; water stress;     Show all 10 Subjects
Abstract:
... Understanding the physiological mechanisms that control drought tolerance in crop plants is vital for effective breeding. In this study, we characterized drought stress responses in four sorghum cultivars exhibiting differential levels of drought tolerance at pre‐ and post‐anthesis. Greenhouse‐grown plants were subjected to two types of drought treatment, water stress (WS) and desiccant‐induced wa ...
DOI:
10.1111/ppl.13242

15. Rehabilitating open-cut coal mine spoil for a pasture system in south east Queensland, Australia: Abiotic soil properties compared with unmined land through time

Author:
Bennett, J.McL.; Melland, A.R.; Eberhard, J.; Paton, C.; Clewett, J.F.; Newsome, T.; Baillie, C.
Source:
Geoderma regional 2021 v.25 pp. e00364
ISSN:
2352-0094
Subject:
root growth,   etc   ; biomass production; cattle; cattle production; coal mine spoil; mined soils; nitrogen; pastures; phosphorus; Queensland;     Show all 10 Subjects
Abstract:
... Rehabilitation of mined land intends to support food and biomass production, with open cut mines required to return the land to a safe, stable and productive state in Queensland, Australia. The aim of this investigation was to assess the potential for soil that was previously farmed, then mined and rehabilitated to support pasture for commercial cattle production. The study was focussed on abiotic ...
DOI:
10.1016/j.geodrs.2021.e00364

16. Cell‐type action specificity of auxin on Arabidopsis root growth

Author:
Ding, Tingting; Zhang, Feng; Wang, Junxia; Wang, Fengxia; Liu, Jiajia; Xie, Chuantian; Hu, Yangjie; Shani, Eilon; Kong, Xiangpei; Ding, Zhaojun; Tian, Huiyu
Source:
Theplant journal 2021 v.106 no.4 pp. 928-941
ISSN:
0960-7412
Subject:
root growth,   etc   ; Arabidopsis; auxins; cortex; endodermis; growth and development; plant hormones; stele;     Show all 8 Subjects
Abstract:
... The plant hormone auxin plays a critical role in root growth and development; however, the contributions or specific roles of cell‐type auxin signals in root growth and development are not well understood. Here, we mapped tissue and cell types that are important for auxin‐mediated root growth and development by manipulating the local response and synthesis of auxin. Repressing auxin signaling in t ...
DOI:
10.1111/tpj.15208

17. Humic acids induce a eustress state via photosynthesis and nitrogen metabolism leading to a root growth improvement in rice plants

Author:
van Tol de Castro, Tadeu Augusto; Berbara, Ricardo Luiz Louro; Tavares, Orlando Carlos Huertas; Mello, Débora Fernandes da Graça; Pereira, Erinaldo Gomes; Souza, Camila da Costa Barros de; Espinosa, Luis Maqueira; García, Andrés Calderín
Source:
Plant physiology and biochemistry 2021 v.162 pp. 171-184
ISSN:
0981-9428
Subject:
root growth,   etc   ; biomass production; hydrophobicity; nitrogen metabolism; photosynthesis; plant development; rice; root systems; soil organic matter;     Show all 9 Subjects
Abstract:
... Chemical eustressors induce a eustress state “positive stress” increasing the resistance and improve the plant growth. The potentiality of humic acids (HA) to act as a eustressor has been scarcely explored. The present study aims to evaluate how HA with different structural characteristics induce differently, a eustress state in rice plants through the regulation of photosynthesis. The photosynthe ...
DOI:
10.1016/j.plaphy.2021.02.043

18. OsGERLP: A novel aluminum tolerance rice gene isolated from a local cultivar in Indonesia

Author:
Miftahudin, Miftahudin; Roslim, Dewi Indriyani; Fendiyanto, Miftahul Huda; Satrio, Rizky Dwi; Zulkifli, Ahmad; Umaiyah, Eka Indah; Chikmawati, Tatik; Sulistyaningsih, Yohana Caecilia; Suharsono, Suharsono; Hartana, Alex; Nguyen, Henry T.; Gustafson, J. Perry
Source:
Plant physiology and biochemistry 2021 v.162 pp. 86-99
ISSN:
0981-9428
Subject:
root growth,   etc   ; acid soils; aluminum; biochemistry; citrates; cultivars; genes; rice; rye; secretion; tobacco; Indonesia;     Show all 12 Subjects
Abstract:
... There is a decrease in the land available for rice cultivation due to the rapid conversion to urban uses. Subsequently, acid soil could be an alternative land cultivating rice, but will require the use of aluminum (Al)-tolerant rice varieties. This Al tolerance trait is genetically controlled, and there is a need to discover more genes needed to develop Al-tolerant rice. Therefore, the objective o ...
DOI:
10.1016/j.plaphy.2021.02.019

19. Processes Influencing Marsh Elevation Change in Low- and High-Elevation Zones of a Temperate Salt Marsh

Author:
Blum, Linda K.; Christian, Robert R.; Cahoon, Donald R.; Wiberg, Patricia L.
Source:
Estuaries and coasts 2021 v.44 no.3 pp. 818-833
ISSN:
1559-2723
Subject:
root growth,   etc   ; hurricanes; organic matter; rhizosphere; salt marshes; sea level; submergence; subsidence; vegetation types; Virginia;     Show all 10 Subjects
Abstract:
... The movement of salt marshes into uplands and marsh submergence as sea level rises is well documented; however, predicting how coastal marshes will respond to rising sea levels is constrained by a lack of process-based understanding of how various marsh zones adjust to changes in sea level. To assess the way in which salt marsh zones differ in their elevation response to sea-level change, and to e ...
DOI:
10.1007/s12237-020-00796-z

20. Response of root traits to plastic film mulch and its effects on yield

Author:
Li, Yüze; Yang, Jinbo; Shi, Zheng; Pan, Wenhui; Liao, Yuncheng; Li, Tong; Qin, Xiaoliang
Source:
Soil & tillage research 2021 v.209 pp. 104930
ISSN:
0167-1987
Subject:
root growth,   etc   ; clay soils; climate change; corn; drought; plastic film mulches; rain; research; tillage;     Show all 9 Subjects
Abstract:
... Plastic film mulch (PM), a major rainwater harvesting measure, is now widely used to cope with drought in context of global climate change. However, the effects of PM on root traits are not clearly understood. Here, we summarized data from 36 independent field studies to examine the effect of PM to 9 root traits, and the relationships between root traits and yields. Averaged across all observation ...
DOI:
10.1016/j.still.2020.104930