Plant-environment interactions (Hoboken, N.J.)最新文献

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Soybean pod shattering resistance allele pdh1 and marker-assisted selection. 大豆抗豆荚破碎等位基因 pdh1 和标记辅助选择。
Plant-environment interactions (Hoboken, N.J.) Pub Date : 2024-08-12 eCollection Date: 2024-08-01 DOI: 10.1002/pei3.70003
Dora Shimbwambwa, Christabel Nachilima, Swivia Hamabwe, Kuwabo Kuwabo, Godfree Chigeza, Kristin Bilyeu, Kelvin Kamfwa
{"title":"Soybean pod shattering resistance allele pdh1 and marker-assisted selection.","authors":"Dora Shimbwambwa, Christabel Nachilima, Swivia Hamabwe, Kuwabo Kuwabo, Godfree Chigeza, Kristin Bilyeu, Kelvin Kamfwa","doi":"10.1002/pei3.70003","DOIUrl":"10.1002/pei3.70003","url":null,"abstract":"<p><p>Pod shattering is a major production constraint of soybean [<i>Glycine max</i> (L.)]. The objectives of this study were to (i) estimate heritability for pod shattering resistance, (ii) determine the frequency of the pod shattering resistance allele <i>pdh1</i> in the International Institute for Tropical Agriculture (IITA) soybean germplasm and Zambian commercial varieties, and (iii) determine the effectiveness of the DNA marker for the pod shattering resistance allele <i>pdh1</i>. A total of 59 genotypes were evaluated for pod shattering in field trials conducted in Malawi and Zambia and genotyped with a marker for <i>pdh1</i>. TGx2002-8FM and TGx2002-9FM were the most resistant among genotypes in early and medium maturity classes and can be used for genetic enhancement of pod shattering resistance in these specific maturity classes. Narrow sense heritability estimates for pod shattering ranged from 0.27 to 0.80. Of the 59 genotypes, 57 (96.6%) carried the resistance allele <i>pdh1</i> while only two genotypes (3.6%) carried the susceptible allele, suggesting near-fixation of the resistance allele <i>pdh1</i> in the IITA germplasm. The marker for <i>pdh1</i> was highly effective in selecting resistant genotypes.</p>","PeriodicalId":74457,"journal":{"name":"Plant-environment interactions (Hoboken, N.J.)","volume":"5 4","pages":"e70003"},"PeriodicalIF":0.0,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11317690/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141972374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Arbuscular mycorrhizal diversity increases across a plant productivity gradient driven by soil nitrogen availability. 在土壤氮可用性的驱动下,植物生产力梯度上的丛枝菌根多样性有所增加。
Plant-environment interactions (Hoboken, N.J.) Pub Date : 2024-08-10 eCollection Date: 2024-08-01 DOI: 10.1002/pei3.70002
Morgan R McPherson, Donald R Zak, Inés Ibáñez, Rima A Upchurch, William A Argiroff
{"title":"Arbuscular mycorrhizal diversity increases across a plant productivity gradient driven by soil nitrogen availability.","authors":"Morgan R McPherson, Donald R Zak, Inés Ibáñez, Rima A Upchurch, William A Argiroff","doi":"10.1002/pei3.70002","DOIUrl":"10.1002/pei3.70002","url":null,"abstract":"<p><p>Arbuscular mycorrhizal fungi (AMF) are widespread obligate symbionts of plants. This dynamic symbiosis plays a large role in successful plant performance, given that AMF help to ameliorate plant responses to abiotic and biotic stressors. Although the importance of this symbiosis is clear, less is known about what may be driving this symbiosis, the plant's need for nutrients or the excess of plant photosynthate being transferred to the AMF, information critical to assess the functionality of this relationship. Characterizing the AMF community along a natural plant productivity gradient is a first step in understanding how this symbiosis may vary across the landscape. We surveyed the AMF community diversity at 12 sites along a plant productivity gradient driven by soil nitrogen availability. We found that AMF diversity in soil environmental DNA significantly increased along with the growth of the host plants <i>Acer</i> <i>rubrum</i> and <i>A. saccharum</i>., a widespread tree genus. These increases also coincided with a natural soil inorganic N availability gradient. We hypothesize photosynthate from the increased tree growth is being allocated to the belowground AMF community, leading to an increase in diversity. These findings contribute to understanding this complex symbiosis through the lens of AMF turnover and suggest that a more diverse AMF community is associated with increased host-plant performance.</p>","PeriodicalId":74457,"journal":{"name":"Plant-environment interactions (Hoboken, N.J.)","volume":"5 4","pages":"e70002"},"PeriodicalIF":0.0,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11316137/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141918279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Confirmation and inheritance of glufosinate resistance in an Amaranthus palmeri population from North Carolina. 北卡罗来纳州棕榈苋种群对草铵膦抗性的确认和遗传。
Plant-environment interactions (Hoboken, N.J.) Pub Date : 2024-06-25 eCollection Date: 2024-06-01 DOI: 10.1002/pei3.10154
Eric A L Jones, Jeffrey C Dunne, Charles W Cahoon, Katherine M Jennings, Ramon G Leon, Wesley J Everman
{"title":"Confirmation and inheritance of glufosinate resistance in an <i>Amaranthus palmeri</i> population from North Carolina.","authors":"Eric A L Jones, Jeffrey C Dunne, Charles W Cahoon, Katherine M Jennings, Ramon G Leon, Wesley J Everman","doi":"10.1002/pei3.10154","DOIUrl":"10.1002/pei3.10154","url":null,"abstract":"<p><p>A putative glufosinate-resistant <i>Amaranthus palmeri</i> population was reported in 2015 in Anson County, North Carolina. The results from dose-response assays conducted in the field suggested plants were surviving lethal rates of glufosinate. Dose-response assays conducted in the glasshouse determined the Anson County accession exhibited reduced susceptibility to glufosinate compared to three glufosinate-susceptible populations. The LD<sub>50</sub> values (210-316 g ai ha<sup>-1</sup>) for the Anson County population were always higher than the LD<sub>50</sub> values (118-158 g ai ha<sup>-1</sup>) for the tested susceptible populations from the dose-response assays. Anson County plants that survived lethal glufosinate rates were reciprocally crossed with susceptible plants to create F<sub>1</sub> genotypes and treated with a lethal rate of glufosinate (267 g ai ha<sup>-1</sup>; ascertained from glasshouse dose-response assay) to determine the distribution of injury and survival for each cross compared to a cross of susceptible parents. The distribution of injury was non-normal for the crosses containing an Anson County plant compared to the cross with a susceptible parent. Survival was 68%-84% for crosses containing an Anson County plant, whereas the survival was significantly reduced to 35% for the susceptible plant cross. Chi-square goodness of fit tests were used to test inheritance models to describe the responses of the genotypes. The resistant × susceptible crosses were best described with a heterozygous two loci with incomplete dominance model compared to the resistant × resistant cross that was best described with a heterozygous single locus with incomplete dominance model. The Anson County population has evolved resistance to glufosinate that is heritable and likely conferred by an oligogenic mechanism with incomplete dominance.</p>","PeriodicalId":74457,"journal":{"name":"Plant-environment interactions (Hoboken, N.J.)","volume":"5 3","pages":"e10154"},"PeriodicalIF":0.0,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11199332/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141461114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparative metabolite profiling of salt sensitive Oryza sativa and the halophytic wild rice Oryza coarctata under salt stress. 盐胁迫下盐敏感稻和盐生野生稻的代谢物谱分析比较。
Plant-environment interactions (Hoboken, N.J.) Pub Date : 2024-06-15 eCollection Date: 2024-06-01 DOI: 10.1002/pei3.10155
Nishat Tamanna, Anik Mojumder, Tomalika Azim, Md Ishmam Iqbal, Md Nafis Ul Alam, Abidur Rahman, Zeba I Seraj
{"title":"Comparative metabolite profiling of salt sensitive <i>Oryza sativa</i> and the halophytic wild rice <i>Oryza coarctata</i> under salt stress.","authors":"Nishat Tamanna, Anik Mojumder, Tomalika Azim, Md Ishmam Iqbal, Md Nafis Ul Alam, Abidur Rahman, Zeba I Seraj","doi":"10.1002/pei3.10155","DOIUrl":"10.1002/pei3.10155","url":null,"abstract":"<p><p>To better understand the salt tolerance of the wild rice, <i>Oryza coarctata</i>, root tissue-specific untargeted comparative metabolomic profiling was performed against the salt-sensitive <i>Oryza sativa</i>. Under control, <i>O. coarctata</i> exhibited abundant levels of most metabolites, while salt caused their downregulation in contrast to metabolites in <i>O. sativa</i>. Under control conditions, itaconate, vanillic acid, threonic acid, eicosanoids, and a group of xanthin compounds were comparatively abundant in <i>O. coarctata</i>. Similarly, eight amino acids showed constitutive abundance in <i>O. coarctata</i>. In contrast, under control, glycerolipid abundances were lower in <i>O. coarctata</i> and salt stress further reduced their abundance. Most phospholipids also showed a distribution similar to the glycerolipids. Fatty acyls were however significantly induced in <i>O. coarctata</i> but organic acids were prominently induced in <i>O. sativa</i>. Changes in metabolite levels suggest that there was upregulation of the arachidonic acid metabolism in <i>O. coarctata</i>. In addition, the phenylpropanoid biosynthesis as well as cutin, suberin, and wax biosynthesis were also more enriched in <i>O. coarctata</i>, likely contributing to its anatomical traits responsible for salt tolerance. The comparative variation in the number of metabolites like gelsemine, allantoin, benzyl alcohol, specific phospholipids, and glycerolipids may play a role in maintaining the superior growth of <i>O. coarctata</i> in salt. Collectively, our results offer a comprehensive analysis of the metabolite profile in the roots of salt-tolerant <i>O. coarctata</i> and salt-sensitive <i>O. sativa</i>, which confirm potential targets for metabolic engineering to improve salt tolerance and resilience in commercial rice genotypes.</p>","PeriodicalId":74457,"journal":{"name":"Plant-environment interactions (Hoboken, N.J.)","volume":"5 3","pages":"e10155"},"PeriodicalIF":0.0,"publicationDate":"2024-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11179383/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141332640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Does humic acid foliar application affect growth and nutrient status of water-stressed maize? 叶面喷施腐植酸会影响水胁迫玉米的生长和营养状况吗?
Plant-environment interactions (Hoboken, N.J.) Pub Date : 2024-06-14 eCollection Date: 2024-06-01 DOI: 10.1002/pei3.10156
Britta Pitann, Kamran Khan, Karl H Mühling
{"title":"Does humic acid foliar application affect growth and nutrient status of water-stressed maize?","authors":"Britta Pitann, Kamran Khan, Karl H Mühling","doi":"10.1002/pei3.10156","DOIUrl":"10.1002/pei3.10156","url":null,"abstract":"<p><p>Maize (<i>Zea mays</i> L.) is one of the world's most important crops, but its productivity is at high risk as climate change increases the risk of water stress. Therefore, the development of mitigation strategies to combat water stress in agriculture is fundamental to ensure food security. Humic acids are known to have a positive effect on drought tolerance, but data on their efficacy under waterlogging are lacking. This study aimed to elucidate the effect of a new humic acid product, a by-product of Ukrainian bentonite mining, on maize growth and nutrient status under waterlogging. Maize was grown for 9 weeks and three water stress treatments, which were applied for 14 days: waterlogging, alternating waterlogging and drought, and drought. On the day of stress application, the humic acid product (1% v/v) was applied to the leaves. Soil Plant Analysis Development (SPAD) values were recorded during the stress treatments. Plants were harvested after stressing ceased and fresh weight and P and Zn status were analyzed. Drought reduced shoot fresh weight, while it was unaffected under waterlogging. This is in contrast to SPAD readings, which showed a significant decrease over time under submergence, but not under drought. Under alternating stress, although SPAD values declined under waterlogging but stabilized when switched to drought, no growth reduction was apparent. Application of the humic acid product was ineffective in all cases. Although anthocyanin discoloration occurred under waterlogging stress, P deficiency, which is usually the main factor driving anthocyanin formation, was not the reason. Interestingly, Zn concentration decreased under waterlogging but not under the other stresses, which was alleviated by humic acid application. However, no effect of foliar-applied humic acids was observed under alternating and drought stress. It can be concluded that the tested humic acid product has the potential to improve the Zn status of maize under waterlogging.</p>","PeriodicalId":74457,"journal":{"name":"Plant-environment interactions (Hoboken, N.J.)","volume":"5 3","pages":"e10156"},"PeriodicalIF":0.0,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11176913/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141332641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Topography-driven microclimate gradients shape forest structure, diversity, and composition in a temperate refugial forest. 地形驱动的小气候梯度塑造了温带原始森林的森林结构、多样性和组成。
Plant-environment interactions (Hoboken, N.J.) Pub Date : 2024-06-11 eCollection Date: 2024-06-01 DOI: 10.1002/pei3.10153
Bailey H McNichol, Ran Wang, Amanda Hefner, Chris Helzer, Sean M McMahon, Sabrina E Russo
{"title":"Topography-driven microclimate gradients shape forest structure, diversity, and composition in a temperate refugial forest.","authors":"Bailey H McNichol, Ran Wang, Amanda Hefner, Chris Helzer, Sean M McMahon, Sabrina E Russo","doi":"10.1002/pei3.10153","DOIUrl":"10.1002/pei3.10153","url":null,"abstract":"<p><p>Macroclimate drives vegetation distributions, but fine-scale topographic variation can generate microclimate refugia for plant persistence in unsuitable areas. However, we lack quantitative descriptions of topography-driven microclimatic variation and how it shapes forest structure, diversity, and composition. We hypothesized that topographic variation and the presence of the forest overstory cause spatiotemporal microclimate variation affecting tree performance, causing forest structure, diversity, and composition to vary with topography and microclimate, and topography and the overstory to buffer microclimate. In a 20.2-ha inventory plot in the North American Great Plains, we censused woody stems ≥1 cm in diameter and collected detailed topographic and microclimatic data. Across 59-m of elevation, microclimate covaried with topography to create a sharp desiccation gradient, and topography and the overstory buffered understory microclimate. The magnitude of microclimatic variation mirrored that of regional-scale variation: with increasing elevation, there was a decrease in soil moisture corresponding to the difference across ~2.1° of longitude along the east-to-west aridity gradient and an increase in air temperature corresponding to the difference across ~2.7° of latitude along the north-to-south gradient. More complex forest structure and higher diversity occurred in moister, less-exposed habitats, and species occupied distinct topographic niches. Our study demonstrates how topographic and microclimatic gradients structure forests in putative climate-change refugia, by revealing ecological processes enabling populations to be maintained during periods of unfavorable macroclimate.</p>","PeriodicalId":74457,"journal":{"name":"Plant-environment interactions (Hoboken, N.J.)","volume":"5 3","pages":"e10153"},"PeriodicalIF":0.0,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11166229/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141307564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Growth periodicity in semi-deciduous tropical tree species from the Congo Basin. 刚果盆地半落叶热带树种的生长周期。
Plant-environment interactions (Hoboken, N.J.) Pub Date : 2024-05-22 eCollection Date: 2024-06-01 DOI: 10.1002/pei3.10144
Basile Luse Belanganayi, Claire Delvaux, Elizabeth Kearsley, Kévin Lievens, Mélissa Rousseau, Christophe Mbungu Phaka, Brice Yannick Djiofack, Félix Laurent, Nils Bourland, Wannes Hubau, Tom De Mil, Hans Beeckman
{"title":"Growth periodicity in semi-deciduous tropical tree species from the Congo Basin.","authors":"Basile Luse Belanganayi, Claire Delvaux, Elizabeth Kearsley, Kévin Lievens, Mélissa Rousseau, Christophe Mbungu Phaka, Brice Yannick Djiofack, Félix Laurent, Nils Bourland, Wannes Hubau, Tom De Mil, Hans Beeckman","doi":"10.1002/pei3.10144","DOIUrl":"10.1002/pei3.10144","url":null,"abstract":"<p><p>In the tropics, more precisely in equatorial dense rainforest, xylogenesis is driven by a little distinct climatological seasonality, and many tropical trees do not show clear growth rings. This makes retrospective analyses and modeling of future tree performance difficult. This research investigates the presence, the distinctness, and the periodicity of growth ring for dominant tree species in two semi-deciduous rainforests, which contrast in terms of precipitation dynamics. Eighteen tree species common to both forests were investigated. We used the cambial marking technique and then verified the presence and periodicity of growth-ring boundaries in the wood produced between pinning and collection by microscopic and macroscopic observation. The study showed that all eighteen species can form visible growth rings in both sites. However, the periodicity of ring formation varied significantly within and between species, and within sites. Trees from the site with clearly defined dry season had a higher likelihood to form periodical growth rings compared to those from the site where rainfall seasonality is less pronounced. The distinctness of the formed rings however did not show a site dependency. Periodical growth-ring formation was more likely in fast-growing trees. Furthermore, improvements can be made by a detailed study of the cambial activity through microcores taken at high temporal resolution, to get insight on the phenology of the lateral meristem.</p>","PeriodicalId":74457,"journal":{"name":"Plant-environment interactions (Hoboken, N.J.)","volume":"5 3","pages":"e10144"},"PeriodicalIF":0.0,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11112140/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141088102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Recent progress and potential future directions to enhance biological nitrogen fixation in faba bean (Vicia faba L.). 加强蚕豆(Vicia faba L.)生物固氮的最新进展和未来潜在方向。
Plant-environment interactions (Hoboken, N.J.) Pub Date : 2024-05-21 eCollection Date: 2024-06-01 DOI: 10.1002/pei3.10145
Tamanna Jithesh, Euan K James, Pietro P M Iannetta, Becky Howard, Edward Dickin, James M Monaghan
{"title":"Recent progress and potential future directions to enhance biological nitrogen fixation in faba bean (<i>Vicia faba</i> L.).","authors":"Tamanna Jithesh, Euan K James, Pietro P M Iannetta, Becky Howard, Edward Dickin, James M Monaghan","doi":"10.1002/pei3.10145","DOIUrl":"10.1002/pei3.10145","url":null,"abstract":"<p><p>The necessity for sustainable agricultural practices has propelled a renewed interest in legumes such as faba bean (<i>Vicia faba</i> L.) as agents to help deliver increased diversity to cropped systems and provide an organic source of nitrogen (N). However, the increased cultivation of faba beans has proven recalcitrant worldwide as a result of low yields. So, it is hoped that increased and more stable yields would improve the commercial success of the crop and so the likelihood of cultivation. Enhancing biological N fixation (BNF) in faba beans holds promise not only to enhance and stabilize yields but also to increase residual N available to subsequent cereal crops grown on the same field. In this review, we cover recent progress in enhancing BNF in faba beans. Specifically, rhizobial inoculation and the optimization of fertilizer input and cropping systems have received the greatest attention in the literature. We also suggest directions for future research on the subject. In the short term, modification of crop management practices such as fertilizer and biochar input may offer the benefits of enhanced BNF. In the long term, natural variation in rhizobial strains and faba bean genotypes can be harnessed. Strategies must be optimized on a local scale to realize the greatest benefits. Future research must measure the most useful parameters and consider the economic cost of strategies alongside the advantages of enhanced BNF.</p>","PeriodicalId":74457,"journal":{"name":"Plant-environment interactions (Hoboken, N.J.)","volume":"5 3","pages":"e10145"},"PeriodicalIF":0.0,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11109504/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141083017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Elevation-dependent tree growth response to climate in a natural Scots pine/downy birch forest in northern Sweden. 瑞典北部天然苏格兰松树/矮桦树林中树木生长对气候的反应取决于海拔高度。
Plant-environment interactions (Hoboken, N.J.) Pub Date : 2024-04-01 DOI: 10.1002/pei3.10140
Magdalena Fassl, Tuomas Aakala, Lars Östlund
{"title":"Elevation-dependent tree growth response to climate in a natural Scots pine/downy birch forest in northern Sweden.","authors":"Magdalena Fassl, Tuomas Aakala, Lars Östlund","doi":"10.1002/pei3.10140","DOIUrl":"10.1002/pei3.10140","url":null,"abstract":"<p><p>Forests dominate the landscape at high latitudes in the boreal regions and contribute significantly to the global carbon stock. Large areas are protected and provide possibilities to analyze natural forest dynamics including resilience to climate change. In Fennoscandia, Scots pine (<i>Pinus sylvestris</i> L.) and downy birch (<i>Betula pubescens</i> Ehrh.) often coexist in natural forests close to the limits of their ecological ranges. Tree growth in these forests is generally thought to be limited by temperature, and changes in growth trends can therefore serve as early indicators of the impact of global warming on natural ecosystems. We sampled 592 Scots pine and downy birch trees along two elevational gradients spanning the transition from the forest zone to the coniferous treeline in Tjeggelvas nature reserve, northern Sweden. Based on the tree-ring data, we compared annual basal area increment (BAI) trends from 1902 to 2021, analyzed the ring-width indices (RWI) in relation to local climate data, and investigated trends in climate-growth relationships. We found that the mean annual growth of both species was higher in more recent years than at the beginning of the 20th century. The RWI were positively correlated with summer temperatures, however, we found a much stronger relationship for Scots pine than downy birch. We noticed a decrease in the importance of summer temperature for Scots pine growth, whereas the importance of late spring temperatures increased over the 120-year-long study period. Due to strongly positive BAI trends combined with a decrease in temperature sensitivity, the overall conclusion of our study is that the influence of increasing temperatures is still positive and outweighs the negative impacts of climate change on Scots pine growth in natural forests in northern Sweden, particularly at higher elevations. Natural forests are important natural experiments that contrast the managed forests and are key to understanding the latter.</p>","PeriodicalId":74457,"journal":{"name":"Plant-environment interactions (Hoboken, N.J.)","volume":"5 2","pages":"e10140"},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10984726/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140338540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fern mycorrhizae do not respond to fertilization in a tropical montane forest. 热带山地森林中的蕨类菌根对施肥没有反应。
Plant-environment interactions (Hoboken, N.J.) Pub Date : 2024-03-29 eCollection Date: 2024-04-01 DOI: 10.1002/pei3.10139
Thais Guillen, Michael Kessler, Jürgen Homeier
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