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

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Leaf functional traits of Parrotia subaequalis from different environments in eastern China. 中国东部不同环境下亚桔梗的叶片功能特征
Plant-environment interactions (Hoboken, N.J.) Pub Date : 2024-08-24 eCollection Date: 2024-08-01 DOI: 10.1002/pei3.70001
Lifang Zhang, Mingjian Yu, Yanming Fang
{"title":"Leaf functional traits of <i>Parrotia subaequalis</i> from different environments in eastern China.","authors":"Lifang Zhang, Mingjian Yu, Yanming Fang","doi":"10.1002/pei3.70001","DOIUrl":"10.1002/pei3.70001","url":null,"abstract":"<p><p>Functional traits are important in understanding how plants respond and adapt to their immediate environment. <i>Parrotia subaequalis</i> is a highly endangered arbor species found throughout eastern China, primarily inhabiting hillsides and valleys, yet, little is known about the variation in leaf traits across these environments. In the present study, we tested this by comparing leaf surface area, leaf weight, leaf length, leaf symmetry and leaf mass per unit area, as well as the relationship between leaf traits and environmental factors and the scaling relationship between leaf surface area versus leaf dry mass. We observed significant differences in leaf surface area, weight, and length among the population sites, and these variables were strongly affected by environmental factors, especially high mean annual temperatures in hillside habitats and high mean annual precipitation in valley habitats. The scaling exponents remained numerically variant among the 10 populations, with different slopes greater than 1.0, and the scaling exponents increased significantly with hillside habitats. These metrics correlated with soil thickness associated with different habitat types. The areal ratio (AR) values in all populations deviated from 1, indicating that the two lamina sides were asymmetrical. The standardized symmetry index (SI) values displayed significant variation, especially in leaves from hillside habitats with a high degree of asymmetry. Collectively, our findings demonstrated that leaf functional traits exhibit considerable variability in response to different environmental contexts and provide valuable reference data that could be useful for conserving this endangered species.</p>","PeriodicalId":74457,"journal":{"name":"Plant-environment interactions (Hoboken, N.J.)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11344171/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142057452","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
Storable, neglected, and underutilized species of Southern Africa for greater agricultural resilience. 南部非洲可储存、被忽视和利用不足的物种,以提高农业抗灾能力。
Plant-environment interactions (Hoboken, N.J.) Pub Date : 2024-08-23 eCollection Date: 2024-08-01 DOI: 10.1002/pei3.70004
Daniel J Winstead, Michael G Jacobson
{"title":"Storable, neglected, and underutilized species of Southern Africa for greater agricultural resilience.","authors":"Daniel J Winstead, Michael G Jacobson","doi":"10.1002/pei3.70004","DOIUrl":"10.1002/pei3.70004","url":null,"abstract":"<p><p>The Southern African region suffers from drought and food system uncertainty with increased risks due to climate change, natural disasters, and global catastrophes. Increasing crop diversity with more appropriate and resilient crops is an effective way of increasing food system resilience. We focus on crop species that are native or naturalized to an area because of their increased resilience than those that are not naturally occurring. Additionally, crops that are easily stored are more useful in times of drought and disaster. In this systematic review, we use scientific interest in neglected and underutilized species (NUS) from Southern Africa to help define next steps toward their cultivation and development as a marketable crop. We found that although scientific interest is minimal for storable Southern African NUS, these crops are worth scaling up due to their economic and nutritional value. We outline next actionable steps and specific NUS for production in a more agrobiodiverse and resilient agriculture system.</p>","PeriodicalId":74457,"journal":{"name":"Plant-environment interactions (Hoboken, N.J.)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11343724/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142057453","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
Impact of seasonality and forest stand age on ion deposition in rehabilitated forests. 季节性和林分年龄对恢复森林离子沉积的影响
Plant-environment interactions (Hoboken, N.J.) Pub Date : 2024-08-20 eCollection Date: 2024-08-01 DOI: 10.1002/pei3.70005
Mohamad Hilmi Ibrahim, Salwana Jaafar, Naoyuki Yamashita, Hiroyuki Sase
{"title":"Impact of seasonality and forest stand age on ion deposition in rehabilitated forests.","authors":"Mohamad Hilmi Ibrahim, Salwana Jaafar, Naoyuki Yamashita, Hiroyuki Sase","doi":"10.1002/pei3.70005","DOIUrl":"10.1002/pei3.70005","url":null,"abstract":"<p><p>This study examines the critical interaction between seasonal precipitation variability and forest maturity in determining ion deposition patterns in rehabilitated forest ecosystems. This research was conducted in rehabilitated forest sites in Bintulu, Sarawak, Malaysia that had ecologically similar plant distribution, species, and age in each planting area. This facilitated the standardization of rainfall deposition in the different study plots which streamlined the study of these specific facets of ecosystem dynamics. The goal is to understand how seasonal changes and the age of the forest influence the chemical composition of the flux that relates to the movement and deposition of nutrients through the forest ecosystem. This flux is a key factor in the health of the forest ecosystem and nutrient cycling. Using ion exchange resin (IER) samplers, we accurately measured and compared the deposition of different ions (Ca<sup>2+</sup>, Na<sup>+</sup>, Fe<sup>2+</sup>, Cu<sup>2+</sup>, NO<sub>3</sub> <sup>-</sup>, NH<sub>4</sub> <sup>+</sup> and SO<sub>4</sub> <sup>2-</sup>) across different seasons and forest ages. The deposition of Ca<sup>2+</sup> and NH₄<sup>+</sup> was significantly lower in the low-precipitation season than in the high-precipitation season in all forest stands, regardless of the year they were established (1996, 1999, 2002, 2005, and 2009). In contrast, ions such as Na<sup>+</sup>, Fe<sup>2+</sup>, Cu<sup>2+</sup>, NO<sub>3</sub> <sup>-</sup> and SO<sub>4</sub> <sup>2-</sup> showed no clear seasonal fluctuations. In addition, the study shows that through-fall in forest stands from 2002, 2005 and 2009 had higher concentrations of Ca<sup>2+</sup> in both seasons than in 1996 and 1999. Interestingly, forest stands from 2009 and 2002 had elevated levels of Na<sup>+</sup> and SO₄<sup>2-</sup> in seasons with low precipitation, while stands from 1996 had higher levels in seasons with high precipitation. Our results emphasize the crucial role of precipitation amount and canopy age in determining ion deposition in forest ecosystems. By demonstrating the significant influence of precipitation seasonality and forest maturity on the chemical composition of throughfall, this study contributes to a deeper understanding of nutrient dynamics in developing forest landscapes and provides valuable insights for ecological restoration measures.</p>","PeriodicalId":74457,"journal":{"name":"Plant-environment interactions (Hoboken, N.J.)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11333918/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142010066","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
Characterization of finger millet extracts and evaluation of their nematicidal efficacy and plant growth promotion potential. 小米提取物的特性及其杀线虫功效和促进植物生长潜力的评估
Plant-environment interactions (Hoboken, N.J.) Pub Date : 2024-08-20 eCollection Date: 2024-08-01 DOI: 10.1002/pei3.70006
Khaoya Martine Chrisantus, Chepkwony Sarah, Lusweti Dorcas, Rose Chepchirchir Ramkat, Chrispus O A Oduori, Njira Njira Pili
{"title":"Characterization of finger millet extracts and evaluation of their nematicidal efficacy and plant growth promotion potential.","authors":"Khaoya Martine Chrisantus, Chepkwony Sarah, Lusweti Dorcas, Rose Chepchirchir Ramkat, Chrispus O A Oduori, Njira Njira Pili","doi":"10.1002/pei3.70006","DOIUrl":"10.1002/pei3.70006","url":null,"abstract":"<p><p>Plant-parasitic nematodes pose a significant threat to finger millet crops, potentially causing yield reduction of up to 70%. Extracts derived from finger millet varieties contain potent bioactive compounds that can mitigate nematode damage and promote plant growth. This study aimed at isolating and characterizing bioactive compounds from the finger millet varieties Ikhulule, Okhale-1, and U-15; evaluating the impact of Ikhulule and U-15 extracts on the mortality of the root lesion nematode <i>Pratylenchus vandenbergae</i>; assessing the growth promotion effects of Ikhulule and U-15 extracts on the finger millet variety Okhale-1; and determining the efficacy of these extracts in managing plant-parasitic nematodes under greenhouse conditions. Extracts were obtained from both leaves and roots and tested in vitro for nematode mortality and in vivo for growth promotion and nematode control. The results showed that finger millet extracts exhibited strong nematicidal properties in vitro, achieving a mortality rate of up to 98% against <i>P. vandenbergae</i> nematodes. Applying these extracts to finger millet shoots significantly reduced nematode populations in both soil and roots and decreased the reproductive factor to below one (1), indicating an effective nematode control. The study attributes the enhanced nematicidal effects of finger millet extracts to their bioactive compounds, particularly dodecanoic acid, phytol, 1,1,4a-trimethyl-6-decahydro naphthalene, 2,3-dihydro-benzofuran, 2-methoxy-4-vinylphenol and ethyl ester, and hexadecanoic acid. These findings suggest that finger millet-derived extracts offer a natural solution for nematode management and broader agronomic benefits, ultimately contributing to overall plant health and productivity.</p>","PeriodicalId":74457,"journal":{"name":"Plant-environment interactions (Hoboken, N.J.)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11334166/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142010065","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
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":null,"pages":null},"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":null,"pages":null},"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":null,"pages":null},"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":null,"pages":null},"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":null,"pages":null},"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
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