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1. Diversity and pathogenicity of pestalotioid fungi associated with blueberry plants in Portugal, with description of three novel species of Neopestalotiopsis

Author:
João Santos; Sandra Hilário; Glória Pinto; Artur Alves
Source:
European journal of plant pathology 2022 v.162 no.3 pp. 539-555
ISSN:
0929-1873
Subject:
Neopestalotiopsis; Pestalotiopsis; Vaccinium corymbosum; blight; blueberries; branches; cultivars; dieback; fungi; internal transcribed spacers; multilocus sequence typing; new species; pathogenicity; peptide elongation factors; phylogeny; plant pathology; surveys; temperature; Portugal
Abstract:
... Blueberries (Vaccinium corymbosum) have been increasingly cultivated in Portugal. Although blueberry is known to be susceptible to twig blight and dieback caused by pestalotioid fungi, there is still scarce information regarding this issue. To bridge this gap, a survey on blueberry plantations in Portugal was carried out to assess the diversity of pestalotioid fungi associated with symptomatic blu ...
DOI:
10.1007/s10658-021-02419-0

2. A natural allele of TAW1 contributes to high grain number and grain yield in rice

Author:
Hua Yuan; Zhengyan Xu; Xueqin Tan; Peng Gao; Mengya Jin; Wencheng Song; Shiguang Wang; Yunhai Kang; Peixiong Liu; Bin Tu; Yuping Wang; Peng Qin; Shigui Li; Bingtian Ma; Weilan Chen
Source:
crop journal 2021 v.9 no.5 pp. 1060-1069
ISSN:
2214-5141
Subject:
alleles; architecture; branches; breeding; chromosomes; cultivars; genetic analysis; genetically modified organisms; grain yield; haplotypes; length; panicles; quantitative polymerase chain reaction; quantitative trait loci; rice; sequence analysis; substitution lines
Abstract:
... Grain number per panicle (GNP) is a complex trait controlled by quantitative trait loci (QTL), directly determining grain yield in rice. Identifying GNP-associated QTL is desirable for increasing rice yield. A rice chromosome segment substitution line (CSSL), F771, which showed increased panicle length and GNP, was identified in a set of CSSLs derived from a cross between two indica cultivars, R49 ...
DOI:
10.1016/j.cj.2020.11.004

3. First Report of Colletotrichum godetiae Causing Anthracnose and Twig Blight on Persian Walnut in Hungary

Author:
V. Varjas; T. Lakatos; T. Tóth; Cs. Kovács
Source:
Plant disease 2021 v.105 no.3 pp. 702
ISSN:
0191-2917
Subject:
Colletotrichum acutatum; Juglans regia; actin; agar; anthracnose; blight; branches; calmodulin; cambium; chloramphenicol; conidia; cotton; cultivars; culture media; disease incidence; fungi; genes; internal transcribed spacers; morphometry; mycelium; necrosis; orchards; pathogenicity; pathogens; pericarp; phloem; sequence analysis; walnuts; Austria; France; Hungary
Abstract:
... Persian walnut (Juglans regia L.) fruit with preharvest anthracnose symptoms, necrotic fruit stalks, and twigs with necrotic buds, and apical necrosis were collected in a Hungarian orchard next to Nágocs in September 2018. Disease incidence was approximately 15% on a Hungarian-bred walnut cultivar, ‘Milotai 10’. Similar symptoms were found on Persian walnut in other locations (e.g., Milota, Érd, S ...
DOI:
10.1094/PDIS-03-20-0607-PDN

4. First Report of Diaporthe amygdali Associated with Twig Canker and Shoot Blight of Nectarine in Spain

Author:
F. Beluzán; D. Olmo; M. León; P. Abad-Campos; J. Armengol
Source:
Plant disease 2021 v.105 no.10 pp. 3300
ISSN:
0191-2917
Subject:
Diaporthe amygdali; Prunus persica; agar; almonds; blight; branches; calmodulin; conidia; cream; cultivars; culture media; fruits; genes; genetic databases; growth chambers; histones; necrosis; nectarines; orchards; pathogenicity; peptide elongation factors; pycnidia; sodium hypochlorite; spring; streptomycin; sulfates; tap water; wood; Mediterranean region; Spain
Abstract:
... Nectarine (Prunus persica [L.] Batsch var. nucipersica [Suckow] C. K. Schneid.) is a fruit crop widely cultivated throughout the Mediterranean basin. In Spain, it is mainly grown in eastern regions of the country. In March 2018, 5-year-old nectarine trees showing twig canker symptoms were observed after a rainy spring period in a 0.5-ha orchard located at Alaior, Menorca island (Spain). Cankers we ...
DOI:
10.1094/PDIS-10-20-2283-PDN

5. First Report of Stem Canker of Almond Trees Caused by Fusarium solani in Greece

Author:
Emmanouil A. Markakis; Stefanos K. Soultatos; Loukas Kanetis; Dimitrios E. Goumas
Source:
Plant disease 2021 v.105 no.9 pp. 2724
ISSN:
0191-2917
Subject:
Carya cordiformis; Fusarium solani; Juglans nigra; Prunus dulcis; almonds; bark; branches; cellophane; conidia; conidiophores; cultivars; culture media; decayed wood; dieback; discoloration; ethanol; fungi; internal transcribed spacers; mulberries; mycelium; paper; pathogenicity; peptide elongation factors; pistachios; ribosomal DNA; rootstocks; stem cankers; Crete; Greece
Abstract:
... Almond (Prunus dulcis) is an important crop for Greece grown on 15,130 ha in 2019 (FAO 2019). In September 2019, a severe stem canker disease was observed in 6-year-old trees of cultivar Marta grafted on the rootstock ‘F675C14’, in a new almond grove of cultivars Marta, Soleta, Antonela, Belona, and Laurete, in Vlachiana, Heraklion, Crete, Greece. Only cultivar Marta trees were affected. Diseased ...
DOI:
10.1094/PDIS-02-21-0245-PDN

6. Increase of canker disease severity in blueberries caused by Neofusicoccum parvum or Lasiodiplodia theobromae due to interaction with Macrophomina phaseolina root infection

Author:
M. Avilés; B. de los Santos; C. Borrero
Source:
European journal of plant pathology 2021 v.159 no.3 pp. 655-663
ISSN:
0929-1873
Subject:
Lasiodiplodia theobromae; Macrophomina phaseolina; Neofusicoccum parvum; blueberries; branches; charcoal rot; cultivars; dieback; disease severity; farms; inoculum; mixed infection; plant pathology; rhizosphere; root rot; spring; stem blight; Spain
Abstract:
... Huelva (Spain) is the largest European producer of blueberry for early spring harvest. Blueberry fields in Huelva are intensively cultured. Canker or stem blight of blueberry and the resultant twig dieback caused mostly by botryosphaeriaceous species has become a serious problem throughout blueberry producing areas worldwide; although the presence of Botryosphaeriaceae species associated with this ...
DOI:
10.1007/s10658-020-02195-3

7. Interrelation of cholesterol‐lowering, antioxidant activity and DNA damage protection to the different solvent extracts of mulberry (Morus alba L.)

Author:
Jing Liu; Yan Yu; Yiping Zhao; Liangyu Jiang; You Zhou; Dejian Huang; Li Xu
Source:
Journal of food processing and preservation 2021 v.45 no.1 pp. e14891
ISSN:
0145-8892
Subject:
DNA damage; Morus alba; antioxidant activity; antioxidants; branches; cultivars; ethyl acetate; flavonoids; fruits; functional foods; hypercholesterolemia; ingredients; leaves; lipid peroxidation; medicine; mulberries; petroleum; polyphenols; solvents; synergism
Abstract:
... Relationships among the cholesterol‐lowering, antioxidant, and DNA damage protection activity of four solvent extracts from the Morus alba L. (Cultivar Hongguo 2) fruits, leaves, and twigs were investigated. The petroleum ether extract of fruit (FPE) had the highest amount of total flavonoids, cholesterol‐lowering activity, and better DPPH radical scavenging capacity. The ethyl acetate extract of ...
DOI:
10.1111/jfpp.14891

8. Occurrence of Bacterial Spot Caused by Xanthomonas arboricola pv. pruni on Peach and Apricot in Serbia

Author:
Renata Iličić; Tatjana Popović
Source:
Plant disease 2021 v.105 no.3 pp. 697
ISSN:
0191-2917
Subject:
ABC transporters; Prunus armeniaca; Prunus persica; Xanthomonas arboricola pv. pruni; agar; apricots; arginine deiminase; bacteria; branches; carbonates; catalase; cultivars; defoliation; disease incidence; esculin; fruits; gelatin; hypersensitivity; indoles; leaves; monitoring; orchards; pathogenicity; pathogens; peaches; plant protection; polymerase chain reaction; quarantine; yeasts; Hungary; Serbia
Abstract:
... Xanthomonas arboricola pv. pruni (Xap) causes bacterial spot of leaves and fruits, defoliation, fruit dropping, and twig, branch, or trunk cankers in most cultivated and ornamental Prunus species. The bacterium is listed as a European and Mediterranean Plant Protection Organization (EPPO) A2 quarantine pathogen. Xap was first detected in 2019 on peach (Prunus persica L., unknown cultivar) leaves i ...
DOI:
10.1094/PDIS-08-20-1817-PDN

9. Probabilistic risk-based model for the assessment of Phyllosticta citricarpa-infected citrus fruit and illicit plant material as pathways for pathogen introduction and establishment

Author:
T.R. Gottwald; E.L. Taylor; L. Amorim; A. Bergamin-Filho; R.B. Bassanezi; G.J. Silva; G. Fogliata; P.H. Fourie; J.H. Graham; V. Hattingh; A.B. Kriss; W. Luo; R.D. Magarey; G.C. Schutte; M.B. Spósito
Source:
Crop protection 2021 v.142 pp. 105521
ISSN:
0261-2194
Subject:
Citrus; Guignardia citricarpa; Monte Carlo method; Phyllosticta; branches; citrus black spot; citrus fruits; cultivars; fruit drop; fruits; fungi; international trade; models; packing houses; pathogens; plant protection; probabilistic risk assessment; quarantine; reproduction; risk; transportation; viability
Abstract:
... Citrus Black Spot (CBS), caused by the ascomycete, Phyllosticta citricarpa, is a fruit, foliar, and twig spotting fungal disease affecting the majority of commercial cultivars of citrus. The disease causes cosmetic lesions, may cause fruit drop and P. citricarpa is considered a quarantine pathogen by some countries, impacting domestic and international trade of citrus fruit. Regulatory requirement ...
DOI:
10.1016/j.cropro.2020.105521

10. Response of Resistant and Susceptible Bayberry Cultivars to Infection of Twig Blight Pathogen by Histological Observation and Gibberellin Related Genes Expression

Author:
Haiying Ren; Yangchun Wu; Temoor Ahmed; Xingjiang Qi; Bin Li
Source:
Pathogens 2021 v.10 no.4 pp. -
ISSN:
2076-0817
Subject:
Pestalotiopsis; blight; branches; conidia; cultivars; death; fruit trees; fungi; gibberellins; glass; histology; mycelium; pathogens; quantitative polymerase chain reaction; China
Abstract:
... Bayberry is an important fruit tree native to the subtropical regions of China. However, a systematic twig blight disease caused by Pestalotiopsis versicolor and P. microspora, resulted in the death of the whole tree of bayberry. The main variety Dongkui is highly sensitive to the twig blight disease, but the variety Zaojia is very highly resistant to the disease. Therefore, it is very necessary t ...
DOI:
10.3390/pathogens10040402

11. Role of water percolation in reproductive physiology of hazelnut (Corylus spp.)

Author:
Murali-Mohan Ayyanath; Mukund R. Shukla; Praveen K. Saxena
Source:
Environmental and experimental botany 2021 v.182 pp. 104278
ISSN:
0098-8472
Subject:
Corylus; abiotic stress; apical dominance; biomarkers; branches; buds; catkins; cold tolerance; cultivars; dehiscence; endpoints; female flowers; flowering; growers; hazelnuts; horticulture; melatonin; mulches; occurrence; phenology; plastics; probability; rain; rhizosphere; sampling; serotonin; snow; snowmelt; snowpack; spring; temperature; thermoregulation; trees; tryptophan; water; winter
Abstract:
... Hazelnut (Corylus spp.) flowering occurs during late winters and early spring which coincides with erratic fluctuating weather patterns. Irregular and reduced precipitation, especially in the form of snow, is assumed to dictate poor flowering and enhanced injury to catkins, especially in the sourced cultivars of interest to growers. We investigated the effect of water (precipitation received as ra ...
DOI:
10.1016/j.envexpbot.2020.104278

12. Agro-Morphological, Yield and Quality Traits and Interrelationship with Yield Stability in Quinoa (Chenopodium quinoa Willd.) Genotypes under Saline Marginal Environment

Author:
M. Iftikhar Hussain; Adele Muscolo; Mukhtar Ahmed; Muhammad Ahsan Asghar; Abdullah J. Al-Dakheel
Source:
Plants 2020 v.9 no.12 pp. -
ISSN:
2223-7747
Subject:
Chenopodium quinoa; biodiversity; biomass; branches; carbon; carbon nitrogen ratio; coasts; correlation; cultivars; desert soils; environment; exhibitions; genotype; grain protein; halophytes; harvest index; leaves; length; nitrogen content; pH; panicles; plant establishment; plant height; protein content; research; saline water; salinity; salt stress; salt tolerance; seed yield; variance; Chile; United Arab Emirates
Abstract:
... Quinoa (Chenopodium quinoa Willd.) is a halophytic crop that shows resistance to multiple abiotic stresses, including salinity. In this study we investigated the salinity tolerance mechanisms of six contrasting quinoa cultivars belonging to the coastal region of Chile using agro-physiological parameters (plant height (PH), number of branches/plant (BN), number of panicles/plant (PN), panicle lengt ...
DOI:
10.3390/plants9121763

13. Allelopathic potential and phenolic allelochemicals discrepancies in Ficus carica L. cultivars

Author:
Afef Ladhari; Badii Gaaliche; Armando Zarrelli; Mouldi Ghannem; Mehdi Ben Mimoun
Source:
South African journal of botany 2020 v.130 pp. 30-44
ISSN:
0254-6299
Subject:
Ficus carica; allelochemicals; allelopathy; branches; cultivars; environmental factors; figs; fruit extracts; germination; high performance liquid chromatography; leaf extracts; leaves; methanol; phenolic compounds; phytotoxicity; rutin; seedling growth; seedlings; trees; weeds
Abstract:
... The phytotoxic effect of some tree species could act as an ecological filter through chemical production that influences plant growth of other species. Despite this widespread interest, few studies have investigated the allelopathic effect of some Moraceae species, while this mechanism has not been studied in Ficus carica. To address this research, we attempted to identify the allelopathic mechani ...
DOI:
10.1016/j.sajb.2019.11.026

14. An aboveground biomass partitioning coefficient model for rapeseed (Brassica napus L.)

Author:
Wenyu Zhang; Hongxin Cao; Weixin Zhang; Jim Scott Hanan; Daokuo Ge; Jing Cao; Ji’an Xia; Shouli Xuan; Wanjie Liang; Lingling Zhang; Qian Wu; Chuanliang Sun; Chunlin Shi; Yan Liu; Yuli Chen; Xujie Han; Yue Pan; Puchuan Tang; Fei Wu
Source:
Field crops research 2020 v.259 pp. 107966
ISSN:
0378-4290
Subject:
Brassica napus; aboveground biomass; branches; correlation; cultivars; density; dry matter partitioning; environmental factors; fertilizers; field crops; growing season; growth models; leaves; pods; prediction; rapeseed; reliability; research
Abstract:
... Biomass partitioning is a pivotal part of the function-structure feedback mechanism. To improve the simulation of aboveground biomass partitioning in growth models for rapeseed (Brassica napus L.), we developed an aboveground biomass partitioning coefficient model for main stem and primary branches, and the stems, leaves, and pods on them, by quantifying the relationships between the biomass parti ...
DOI:
10.1016/j.fcr.2020.107966

15. An in situ approach to characterizing photosynthetic gas exchange of rice panicle

Author:
Tian-Gen Chang; Qing-Feng Song; Hong-Long Zhao; Shuoqi Chang; Changpeng Xin; Mingnan Qu; Xin-Guang Zhu
Source:
Plant methods 2020 v.16 no.1 pp. 92
ISSN:
1746-4811
Subject:
area; bias; branches; breeding; carbon dioxide; correlation; culms; cultivars; density; ears; filling period; fruits; gas exchange; grain yield; hybrids; leaves; light; measurement; panicles; pesticide application; photons; photosynthesis; plant organs; respiratory rate; rice; shade; spikelets; testing; tissues
Abstract:
... BACKGROUND: Photosynthesis of reproductive organs in C₃ cereals is generally regarded as important to crop yield. Whereas, photosynthetic characteristics of reproductive organs are much less understood as compared to leaf photosynthesis, mainly due to methodological limitations. To date, many indirect methods have been developed to study photosynthesis of reproductive organs and its contribution t ...
DOI:
10.1186/s13007-020-00633-1

16. Antixenosis of the Triozid, Triozoida limbata (Hemiptera: Triozidae) to Some Cultivars of Psidium guajava (Myrtaceae) in the Field

Author:
Isaias de Oliveira; Manoel A. Uchoa; Marcos G. Fernandes; Cássia R. Y. I. Vieira; Odival Faccenda; Inessa S. T. de Oliveira
Source:
Florida entomologist 2020 v.102 no.4 pp. 695-700
ISSN:
1938-5102
Subject:
Psidium guajava; Triozidae; adults; antixenosis; branches; breeding programs; canopy height; cultivars; guavas; immatures; insect resistance; insect traps; insecticides; leaves; nymphs; orchards; pests; plant breeding; production technology; shoots; Brazil
Abstract:
... In the guava crop, insecticides are frequently used throughout the yr in an attempt to protect new shoots from the attack of the key pest Triozoida limbata (Enderlein) (Hemiptera: Triozidae). Research is essential to investigate the resistance of cultivars for management of T. limbata populations in sustainable production systems. We evaluated the preference of T. limbata on guava cultivars in the ...
DOI:
10.1653/024.102.0404

17. Characterization and Grouping of All Primary Branches at Various Positions on a Rice Panicle Based on Grain Growth Dynamics

Author:
Quan Zhao; Xiangyang Hao; Izhar Ali; Anas Iqbal; Saif Ullah; Min Huang; Feiyang Kong; Tianyuan Li; Ying Xuan; Faqiao Li; Bo Yan; Yuqiong Luo; He Liang; Shanqing Wei; Nianping Chen; Ligeng Jiang
Source:
Agronomy 2020 v.10 no.2 pp. -
ISSN:
2073-4395
Subject:
Oryza sativa; branches; cluster analysis; cultivars; dry matter accumulation; field experimentation; filling period; grain yield; panicles; rice
Abstract:
... Grain filling can directly influence rice yield. However, there is limited information on the growth relationship among grains at different positions on the entire panicle during grain filling. In this study, field experiments were conducted in 2014–2015 to compare the growth dynamics of grains at various positions for two rice cultivars (Nongle 1 and Guifeng 2). The results showed that a high sim ...
DOI:
10.3390/agronomy10020223

18. Comparative epidemiology of three Colletotrichum species complex causing Glomerella leaf spot on apple

Author:
Rafaele Regina Moreira; Armando Bergamin Filho; Walmes Marques Zeviani; Louise Larissa May De Mio
Source:
European journal of plant pathology 2020 v.158 no.2 pp. 473-484
ISSN:
0929-1873
Subject:
Colletotrichum fructicola; Glomerella; Malus domestica; aggression; apples; branches; crop production; cultivars; epidemiology; fruit diseases; fruit growing; growers; growth chambers; latent period; leaf spot; leaves; logit analysis; models; orchards; temperature; Brazil
Abstract:
... Glomerella leaf spot (GLS) is an apple disease that is causing concern to growers in Brazil due to the increases in severity over the years and the difficulties in control. To date there are few studies on the temporal progress of this disease specially comparing species of Colletotrichum. In Brasil the main species is C. fructicola followed by C. nymphaeae. It is not known the contribution of eac ...
DOI:
10.1007/s10658-020-02089-4

19. Distribution and Pathogenicity of Colletotrichum Species Associated With Mango Anthracnose in Mexico

Author:
J. M. Tovar-Pedraza; J. A. Mora-Aguilera; C. Nava-Díaz; N. B. Lima; S. J. Michereff; J. S. Sandoval-Islas; M. P. S. Câmara; D. Téliz-Ortiz; S. G. Leyva-Mir
Source:
Plant disease 2020 v.104 no.1 pp. 137-146
ISSN:
0191-2917
Subject:
Bayesian theory; Colletotrichum fructicola; Glomerella cingulata; Mangifera indica; anthracnose; branches; cultivars; fruit diseases; fruit growing; fruits; intergenic DNA; leaves; mangoes; orchards; phylogeny; surveys; virulence; Mexico
Abstract:
... Mango anthracnose, caused by Colletotrichum spp., is the most significant disease of mango (Mangifera indica L.) in almost all production areas around the world. In Mexico, mango anthracnose has only been attributed to C. asianum and C. gloeosporioides. The aims of this study were to identify the Colletotrichum species associated with mango anthracnose symptoms in Mexico by phylogenetic inference ...
DOI:
10.1094/PDIS-01-19-0178-RE

20. Drought effects on cotton (Gossypium hirsutum L.) fibre quality and fibre sucrose metabolism during the flowering and boll‐formation period

Author:
Min Gao; John L. Snider; Hua Bai; Wei Hu; Rui Wang; Yali Meng; Youhua Wang; Binglin Chen; Zhiguo Zhou
Source:
Journal of agronomy and crop science 2020 v.206 no.3 pp. 309-321
ISSN:
0931-2250
Subject:
Gossypium hirsutum; agronomy; branches; callose; carbon metabolism; cellulose; cotton; cultivars; drought; fiber quality; flowering; fruiting; glucose; length; pressure; soil; sucrose; sucrose synthase; synthesis; turgor; uridine diphosphate; water; water content; water stress
Abstract:
... The cotton (Gossypium hirsutum L.) crop is an indeterminate species that is most sensitive to drought stress during the flowering and boll‐formation stage of development. To evaluate the effect of water deficit on fibre quality and carbon metabolism at different fruiting branches (FB), multiple controlled experiments were conducted. The cotton cultivar Siza 3 was used under three soil relative wat ...
DOI:
10.1111/jac.12389