高浓度二氧化碳和温度升高的组合影响使番荔枝的生长、发育和果实产量受到影响。
Combinatorial impacts of elevated CO and temperature affect growth, development, and fruit yield in Jacq.
作者信息
Das Sangita, Kalita Prakash, Acharjee Sumita, Nath Arun Jyoti, Gogoi Bhabesh, Pal Sikander, Das Ranjan
机构信息
Department of Crop Physiology, Assam Agricultural University, Jorhat, Assam 785013 India.
Department of Agricultural Biotechnology, Assam Agricultural University, Jorhat, Assam 785013 India.
出版信息
Physiol Mol Biol Plants. 2023 Mar;29(3):393-407. doi: 10.1007/s12298-023-01294-9. Epub 2023 Mar 16.
UNLABELLED
Hot chilli ('Bhut Jolokia') ( Jacq.) is the hottest chilli widely grown in the North-Eastern region of India for its high pungency. However, little information is available on its physiology, growth and developmental parameters including yield. Therefore, the present research was undertaken to study the physiological responses of Bhut Jolokia under elevated CO (CO) and temperature. Two germplasms from two different agro-climatic zones (Assam and Manipur) within the North-East region of India were collected based on the pungency. The present study explored the interactive effect of CO [at 380, 550, 750 ppm (parts per million)] and temperature (at ambient, > 2 °C above ambient, and > 4 °C above ambient) on various physiological processes, and expression of some photosynthesis and capsaicin related genes in both the germplasms. Results revealed an increase (> 1-2 fold) in the net photosynthetic rate (P), carbohydrate content, and C: N ratio in 'Bhut Jolokia' under CO and elevated temperature regimes compared to ambient conditions within the germplasms. Gene expression studies revealed an up-regulation of photosynthesis-related genes such as () and () which, explained the higher P under CO and temperature conditions. Both the germplasm showed better performance under CTGT-II (Carbon dioxide Temperature Gradient Tunnel having 550 ppm CO and temperature of 2 °C above ambient) in terms of various physiological parameters and up-regulation of key photosynthesis-related genes. An up-regulation of the was also evident in the study, which could be due to the metabolite readjustment in 'Bhut Jolokia'. In addition, the cultivar from Manipur (cv. 1) had less fruit drop compared to the cultivar from Assam (cv. 2) in CTGT II. The data indicated that 550 ppm of CO and temperature elevation of > 2 °C above the ambient with CTGT-II favored the growth and development of 'Bhut Jolokia'. Thus, results suggest that Bhut Jolokia grown under the elevation of CO up to 550 ppm and temperature above 2 °C than ambient may support the growth, development, and yield.
SUPPLEMENTARY INFORMATION
The online version contains supplementary material available at 10.1007/s12298-023-01294-9.
未标注
辣辣椒（“印度鬼椒”）（茄属）是印度东北地区广泛种植的最辣辣椒，因其具有高辛辣度。然而，关于其生理特性、生长和发育参数（包括产量）的信息却很少。因此，本研究旨在探究印度鬼椒在二氧化碳（CO₂）浓度升高和温度升高条件下的生理反应。基于辛辣度，从印度东北地区两个不同农业气候区（阿萨姆邦和曼尼普尔邦）收集了两份种质。本研究探讨了CO₂[380、550、750 ppm（百万分率）]和温度（环境温度、比环境温度高2℃以上、比环境温度高4℃以上）对两种种质各种生理过程以及一些光合作用和辣椒素相关基因表达的交互作用。结果显示，与种质内的环境条件相比，在CO₂浓度升高和温度升高条件下，“印度鬼椒”的净光合速率（Pn）、碳水化合物含量和碳氮比增加（>1至2倍）。基因表达研究表明，光合作用相关基因如（具体基因名称未给出）和（具体基因名称未给出）上调，这解释了在CO₂浓度升高和温度升高条件下较高的Pn。在各种生理参数和关键光合作用相关基因上调方面，两种种质在CTGT-II（二氧化碳温度梯度隧道，CO₂浓度为550 ppm，温度比环境温度高2℃）条件下表现更好。在该研究中，（具体基因名称未给出）的上调也很明显，这可能是由于“印度鬼椒”中的代谢物重新调整。此外，在CTGT II中，曼尼普尔邦的品种（cv. 1）比阿萨姆邦的品种（cv. 2）落果更少。数据表明，550 ppm的CO₂和CTGT-II中比环境温度高>2℃的温度升高有利于“印度鬼椒”的生长和发育。因此，结果表明，在CO₂浓度升高至550 ppm且温度比环境温度高2℃以上的条件下种植印度鬼椒可能有利于其生长、发育和产量。
补充信息
在线版本包含可在10.1007/s12298-023-01294-9获取的补充材料。
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