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Nutr."],"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>In tea plantations with high-pH (pH &amp;gt; 6.5) in Northern China, tea plants are prone to yellowing disease, albinism, and reductions in components that contribute to plant quality, which affect the scale and rate of tea plantation development in Northern China.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      To investigate the potential causes of these issues,\n                      <jats:italic>Camellia sinensis cv<\/jats:italic>\n                      . Pingyang Tezao and\n                      <jats:italic>Camellia sinensis cv<\/jats:italic>\n                      . Ruixue were planted in Shouguang city (a high-pH area, soil pH &amp;gt; 6.5) and Rizhao city (a normal-pH area, soil pH is 4.5\u20135.5), respectively; differences in growth morphology, pigment content, cell structure, quality-determining components, and element content of the two varieties in the two areas were analyzed.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>The results showed that tea leaves planted in Shouguang had varying degrees of yellowing disease and albinism; the pigment content in both varieties was significantly lower when planted in Shouguang compared with Rizhao. The cell structure was severely damaged and the main quality-determining components were decreased. Nitrogen (N), phosphorus (P), potassium (K), zinc (Zn), copper (Cu) and manganese (Mn) contents in the leaves of the two tea plant varieties were significantly lower when planted in Shouguang compared with those in Rizhao; the levels of these elements in Shouguang soil were significantly higher than in Rizhao soil. Calcium (Ca) contents in Shouguang soil was 9.90 times higher than that of Rizhao soil.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>We conclude that the soil in high-pH areas hindered tea plant uptake of N, Zn, Cu, and Mn, which had a detrimental effect on chloroplasts and reductions in chlorophyll synthesis, contributing to yellowing disease and albinism. In addition, excessive calcium (Ca) in Shouguang soil was also an important contributor to these negative effects. High-pH soil hindered tea plant uptake of P and K, resulting in reductions in tea polyphenols, amino acids, and other major quality components.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3389\/fnut.2023.1131380","type":"journal-article","created":{"date-parts":[[2023,3,6]],"date-time":"2023-03-06T12:22:19Z","timestamp":1678105339000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":15,"title":["Analysis of growth resistance mechanisms and causes in tea plants (Camellia sinensis) in high-pH regions of Northern China"],"prefix":"10.3389","volume":"10","author":[{"given":"Chun-Lei","family":"Li","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jing","family":"Xu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hong-Mei","family":"Xu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jie","family":"Liu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Long-Xiang","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zi-Kai","family":"Wang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2023,2,28]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"1505","DOI":"10.1002\/jsfa.2875","article-title":"Effect of root zone pH and form and concentration of nitrogen on accumulation of quality-related components in green tea","volume":"87","author":"Ruan","year":"2007","journal-title":"J Sci Food Agric."},{"key":"B2","doi-asserted-by":"publisher","first-page":"199","DOI":"10.1515\/fhort-2017-0019","article-title":"Environmental and nutritional requirements for tea cultivation","volume":"29","author":"Hajiboland","year":"2017","journal-title":"Folia Hort."},{"key":"B3","doi-asserted-by":"publisher","first-page":"144","DOI":"10.3969\/j.issn.1000-369X.2009.02.010","article-title":"Nutritional diagnosis for the pathogenesis of fluorescence green spot disease of tea plant","volume":"29","author":"Yao","year":"2009","journal-title":"J Tea Sci."},{"key":"B4","doi-asserted-by":"publisher","first-page":"750","DOI":"10.1016\/j.envpol.2006.09.006","article-title":"Effects of external phosphorus on the cell ultrastructure and the chlorophyll content of maize under cadmium and zinc stress","volume":"147","author":"Jiang","year":"2007","journal-title":"Environ Pollut."},{"key":"B5","doi-asserted-by":"publisher","first-page":"563","DOI":"10.1007\/s10535-011-0126-3","article-title":"Changes of leaf antioxidant system, photosynthesis and ultrastructure in tea plant under the stress of fluorine","volume":"55","author":"Li","year":"2011","journal-title":"Biol Plant."},{"key":"B6","doi-asserted-by":"publisher","first-page":"745","DOI":"10.19336\/j.cnki.trtb.2007.04.027","article-title":"Applications of an Universal soil extractant of mehlich 3 to nutrient analysis of tea garden soil","volume":"38","author":"Ma","year":"2007","journal-title":"Chin J Soil Sci."},{"key":"B7","doi-asserted-by":"publisher","first-page":"129","DOI":"10.3969\/j.issn.1673-8683.2010.06.046","article-title":"Evaluation of soil nutrient status of tea plantation in Fujian province","volume":"42","author":"Yang","year":"2010","journal-title":"Straits Sci."},{"key":"B8","doi-asserted-by":"publisher","first-page":"1375","DOI":"10.1002\/jsfa.4709","article-title":"Magnesium nutrition on accumulation and transport of amino acids in tea plants","volume":"92","author":"Ruan","year":"2012","journal-title":"J Sci Food Agric"},{"key":"B9","volume-title":"Method for Determination of Tea Polyphenols and Catechins in Tea, the National Standard of China (GB\/T8313)","year":"2018"},{"key":"B10","volume-title":"Republic of China, National Standardization Administration of China. 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