Sengottayan Senthil-Nathan1. 1. Division of Biopesticides and Environmental Toxicology, Sri Paramakalyani Centre for Excellence in Environmental Sciences, Manonmaniam Sundaranar University, Alwarkurichi, Tenkasi, Tamil Nadu, 627 412, India. senthil@msuniv.ac.in.
Abstract
The elevated CO2 (eCO2) has positive response on plant growth and negative response on insect pests. As a contemplation, the feeding pattern of the brown plant hopper, Nilaparvata lugens Stål on susceptible and resistant rice cultivars and their growth rates exposed to eCO2 conditions were analyzed. The eCO2 treatment showed significant differences in percentage of emergence and rice biomass that were consistent across the rice cultivars, when compared to the ambient conditions. Similarly, increase in carbon and decrese in nitrogen ratio of leaves and alterations in defensive peroxidase enzyme levels were observed, but was non-linear among the cultivars tested. Lower survivorship and nutritional indices of N. lugens were observed in conditions of eCO2 levels over ambient conditions. Results were nonlinear in manner. We conclude that the plant carbon accumulation increased due to eCO2, causing physiological changes that decreased nitrogen content. Similarly, eCO2 increased insect feeding, and did alter other variables such as their biology or reproduction.
The elevated n class="Chemical">CO2 (eCO2) has positive response on plant growth and negative response on insect pests. As a contemplation, the feeding pattern of the brown plant hopper, Nilaparvata lugens Stål on susceptible and resistant ricecultivars and their growth rates exposed to eCO2 conditions were analyzed. The eCO2 treatment showed significant differences in percentage of emergence and rice biomass that were consistent across the ricecultivars, when compared to the ambient conditions. Similarly, increase in carbon and decrese in nitrogen ratio of leaves and alterations in defensive peroxidase enzyme levels were observed, but was non-linear among the cultivars tested. Lower survivorship and nutritional indices of N. lugens were observed in conditions of eCO2 levels over ambient conditions. Results were nonlinear in manner. We conclude that the plant carbon accumulation increased due to eCO2, causing physiological changes that decreased nitrogen content. Similarly, eCO2 increased insect feeding, and did alter other variables such as their biology or reproduction.
Authors: Chengjin Chu; James A Lutz; Kamil Král; Tomáš Vrška; Xue Yin; Jonathan A Myers; Iveren Abiem; Alfonso Alonso; Norm Bourg; David F R P Burslem; Min Cao; Hazel Chapman; Richard Condit; Suqin Fang; Gunter A Fischer; Lianming Gao; Zhanqin Hao; Billy C H Hau; Qing He; Andrew Hector; Stephen P Hubbell; Mingxi Jiang; Guangze Jin; David Kenfack; Jiangshan Lai; Buhang Li; Xiankun Li; Yide Li; Juyu Lian; Luxiang Lin; Yankun Liu; Yu Liu; Yahuang Luo; Keping Ma; William McShea; Hervé Memiaghe; Xiangcheng Mi; Ming Ni; Michael J O'Brien; Alexandre A de Oliveira; David A Orwig; Geoffrey G Parker; Xiujuan Qiao; Haibao Ren; Glen Reynolds; Weiguo Sang; Guochun Shen; Zhiyao Su; Xinghua Sui; I-Fang Sun; Songyan Tian; Bin Wang; Xihua Wang; Xugao Wang; Youshi Wang; George D Weiblen; Shujun Wen; Nianxun Xi; Wusheng Xiang; Han Xu; Kun Xu; Wanhui Ye; Bingwei Zhang; Jiaxin Zhang; Xiaotong Zhang; Yingming Zhang; Kai Zhu; Jess Zimmerman; David Storch; Jennifer L Baltzer; Kristina J Anderson-Teixeira; Gary G Mittelbach; Fangliang He Journal: Ecol Lett Date: 2018-12-12 Impact factor: 9.492
Authors: Stephen P Long; Elizabeth A Ainsworth; Andrew D B Leakey; Josef Nösberger; Donald R Ort Journal: Science Date: 2006-06-30 Impact factor: 47.728
Authors: Josh M Gray; Steve Frolking; Eric A Kort; Deepak K Ray; Christopher J Kucharik; Navin Ramankutty; Mark A Friedl Journal: Nature Date: 2014-11-20 Impact factor: 49.962
Authors: Carlo Calfapietra; Elizabeth A Ainsworth; Claus Beier; Paolo De Angelis; David S Ellsworth; Douglas L Godbold; George R Hendrey; Thomas Hickler; Marcel R Hoosbeek; David F Karnosky; John King; Christian Körner; Andrew D B Leakey; Keith F Lewin; Marion Liberloo; Stephen P Long; Martin Lukac; Rainer Matyssek; Franco Miglietta; John Nagy; Richard J Norby; Ram Oren; Kevin E Percy; Alistair Rogers; Giuseppe Scarascia Mugnozza; Mark Stitt; Gail Taylor; Reinhart Ceulemans Journal: Trends Plant Sci Date: 2009-12-01 Impact factor: 18.313